What use is it hydraulic fittings?

 There are always many people will ask hydraulic fittings are used in any place it? This problem has too many people have asked me, and answer many questions related to the hydraulic fittings are always some impatience the trouble feeling, these people do not know about their online popularity hydraulic accessories related knowledge, what is not know always like to ask, where to use hydraulic fittings ah? What is the use of hydraulic fittings ah? Hydraulic fittings where the best suppliers? First is the most relevant knowledge hydraulic fittings bar, a system consists of many zero components, each of these parts as "combination", the system to, each of the system components are "parts" of the. There are some parts of the short-lived, or easily damaged, we must be prepared in advance of these wearing parts for repair use, reusable fitting so as not to wait for the bad parts affecting production, spare parts for these pre-prepared called "Spare Parts" . Accessories and spare parts can be the same thing, but also not. Generally purchased to buy back on the use of multi-called accessories, or outsourcing, or home-made, ready to take a longer time to use mostly called spare parts. Know this, let him acknowledge hydraulic fittings for anything to help.   Hydraulic fittings are basically used in cranes, excavators and other heavy machinery above, that each requires a different hydraulic systems are composed of hydraulic fittings, and there is 10 tons heavy crawler excavators originally gear motors, shaft diameter is 31.2mm, the number of teeth is 14, to be converted into the plunger travel motor above all need to use these different hydraulic fittings.

Introduction powerful magnet applications

Powerful magnets can simplify the manufacturing process to reach a smaller and cheaper products , but also can improve the connection reliability and greater design freedom. In addition to television ads, street billboards, transit carriage posters , magazines, paper bags, packaging bags everywhere commercial advertising . Since only a sample model home sales , there is no entity for reference, this time should be to have a reputable construction company as a priority , again before considering other factors. Developed a special vegetable and fruit packing cartons for packaging fruit. Bouncing around in the military community in the past alleys adjoining the alley adjoining the alley , alley bottom is a hydraulic pump springs, afterschool forward to that settlement will Chahu the only noodle shop to eat a bowl of noodles . In the Han Dynasty , when the first manufacturing Luan large pieces shaped magnets, as the court of toys.
My home is the use of electric toothbrushes sealed rubber keypad switch , and therefore it will not be long-term use by the switch at the seepage failure. Is a cross-media information and communication technology field , integrated provider of products and services for the global press, publishing, printing supplier. Old compressor actually on fire, let the factory suffered heavy losses , but there are people hospital treatment. hydraulic couplings Silicone rubber has good elasticity , heat, cold , insulation and other features, is a very good material . The key factor in this part of the development of the number of vehicles and aluminum mold production technology , mold development requires capital investment, aluminum production and high technical difficulty . Of Asia in recent years, also actively towards high value-added products and optoelectronics industry with tape and PE film development .

With more PP packaging boxes, printed above the picture has become increasingly diverse, take your pick , pack your satisfaction. There is a free 3D modeling software is easy to use , and there are high- quality animation output. He once invited production companies should be facilitated stickers to make convenient public space sticker .

Before working at the library , so there are operating over labeling machines, in fact, is also full of fun. Some people even use thin drape heavy objects produce architectural appearance model upside down , is really special. Japanese-style building with wind design concept , the use of wood combined with powerful magnets , simple and natural. But I did not expect that, when the air conditioning manufacturers claim to have returned in original packaging tray. To hide the speakers in the form of speakers to create a variety of shapes , including styrofoam boxes, cartons assembling.

New this year, berry red , blue and other bright colors, internal magnet assembly . I did not know what is OPP bag, and then I was loaded candy bag. Engaged in cutting or drilling acrylic plate stack , it is recommended between the plates in acrylic . Accumulated revenue 648 million yuan in the first half , 55 per cent annual growth , development of mold has reached 70-80 sets. Taiwanese culture largest printing paper supplier , as this section has been shrinking , has drawn up a new plan . For large and socketless fitting small billboards , stickers, plastic plates , acrylic, glass , metal plates , wood , etc. can do color or color printing . In case of accident or who just do not need business cards for data -owned and no pen and paper when it happens , labeling machine comes in handy .

Proof pipe clamp

Explosion-proof pipe clamp pipe clamp is also called, is a kind of pliers tools, the use of this tool allows us to do some special work. Ex pipe clamp particularly suitable for use in flammable, explosive and other places where use.
Product Specifications
Ex pipe clamp specifications are the following: 200,250,300,350,450,600,900,1200 (mm), corresponding to other specifications: 8 inch, 10 inch, 12 inch, 14 inch, 18 inch, 24 inch, 36 inch, 48 inch
[Product Overview]
Ex pipe clamp has two to choose from: British pipe clamp, American pipe clamp, pipe clamp two different styles of different work needs to be completed. Today's society, more and more attention to personal safety, so proof pipe clamp for our security in social work plays an important role.
Application areas
Ex pipe clamp used in petroleum, chemical, military, electronics, petrochemical, mining and other places where used in these particular workplace will not use explosion-proof pipe wrench because percussion and friction caused by the operation mode between objects generate mechanical spark , which would avoid the occurrence of safety accidents.
Material
Explosion-proof pipe clamp was able to play the function of the most important is because the product of the material particularity proof pipe clamp two materials for our products and services. reusable fitting Aluminum bronze and bronze alloys, aluminum bronze alloy based on copper as the main raw material for processing production, made ​​of copper and other precious metals for alloy after casting. After forming proof pipe clamp through a series of processing, the finished product can be explosion-proof function. Beryllium the same in such a way to produce, but the product requirements of this material will be higher than that of aluminum bronze.

The use of afterburner pipe clamp methods and precautions

The use of afterburner pipe clamp methods and precautions
       The use of afterburner pipe clamp
       (1) Select the appropriate pipe fittings of different specifications specifications afterburner pipe clamp;
       (2) the specifications of the manifold block pipe wrench used must not exceed the specified maximum torque;
       (3) use of force should be toward the vertical or horizontal direction;
       (4) after the workpiece must be clamped firmly to prevent slipping wounding;
       (5) does not apply excessive force when turning to prevent overload damage;
       Note:
       (A) not long at minus 20 ℃ or less and 300 ℃ or more.
       (2) shall not be located in the afterburner rod coupled with the other sleeve.
       (3) tube clamp teeth and adjusting nut to keep clean;
       (4) This product can not be used as a hammer;

In 2013 the number of hydraulic fittings latest data

Domestic economic development is very rapid, hydraulic fittings industry data are constantly updated annually, data from an industry can completely determine how the development of this industry, the following data sources true, the data provided by the China Association of hydraulic industry in 2013 the number of hydraulic fittings latest data :
1 set of metric hydraulic fittings machinery and accessories region: Shanghai Hydraulic Sector Index: 1400
(2) Other Hydraulic machinery and group Accessories Region: Dongguan City, Guangdong Hydraulic Sector Index: 984
3 other hydraulic machinery and group Accessories Region: Jiading District Hydraulic Sector Index: 600
(4) Other Hydraulic machinery and group Accessories Region: Nantong, Jiangsu Qidong Hydraulic Sector Index: 490
5 other hydraulic machinery and group Accessories Region: Ningbo Fenghua Hydraulic Sector Index: 440
   Hydraulic fittings industry annual season is April to June every year is the busiest, every year at this time is the golden season of hydraulic fittings industry. Hydraulic accessories related products: hydraulic pumps, hydraulic pliers, hydraulic systems, hydraulic motors, hydraulic cylinders, etc. belong to the relevant requirements.

The characteristics of various materials hydraulic

The characteristics of various materials hydraulic tubing and scope
Seamless steel pipe. Oil resistance, good corrosion resistance, high pressure resistance, small deformation. Easy bending assembly, but after assembly to retain their shape for a long time, so that in the high-pressure system has been widely used. There are two kinds of cold-drawn and hot rolled seamless steel tubes. Precision cold drawn tube diameter size, uniform texture and high strength.hydraulic hose fittings  More commonly used on the 10th, the 15th outline drawn seamless tubes. Suction and return lines and other low-pressure line, allowing the use of pipe joints, the maximum working pressure of not more than 1MPa.  
Rubber hoses. A relative movement can be used for connection between components, the hydraulic system can absorb shock and vibration, and easy assembly. But hose manufacturing difficulties, short life, high into the wood, the fixed connection is generally not used. Rubber hoses are divided into two kinds of high-pressure hose and pressure hose, high pressure hose clamp with rubber oil resistant wire, wire cross-weaving and winding two kinds, generally have 2-3 layers. Multi-layered wire, the smaller the diameter, the higher the pressure resistance, the maximum working pressure up to 35MPa-40MPa, low pressure hose clamp is made ​​of rubber with canvas oil, suitable for working pressure less than 1.5MPa occasions.  
Copper. Easily bent into the desired shape, easy to install, and the wall is smooth, friction is small. However, resistance to low pressure, vibration resistance is weak, only for medium and low voltage circuit (generally pressure not greater than 5MPa). Because copper and oil exposure can accelerate the oxidation of the oil and copper than the lack, it should try to avoid using copper bamboo, usually limited to instrumentation and control devices used small diameter tubing.

Manifold and valve member with the combination of research

According to incomplete statistics, in 2011 China's fluid sealing industry above designated size industrial output value of 77.271 billion yuan enterprises, an increase of 21%, of which the hydraulic industry completed 43.62 billion yuan, an increase of 18.47%; pneumatic industry completed 15.046 billion yuan, an increase of 29.60%; sealing industry completed 18.605 billion yuan, an increase of 23.95%. fluid airtight industry 125 key enterprises in 64 hydraulic industry, hydraulic industry 6, pneumatic industry 40, 15 sealing industry, economic efficiency index was 233.56, 226.44 over the same period last year. these key enterprises of the industrial output value of 33.424 billion yuan, an increase of 12.94 percent, of which the output value of 14.171 billion yuan hydraulic enterprises, an increase of 7.72%; hydraulic enterprise value of 533 million yuan, down 4.77%; pneumatic enterprise value of 8.639 billion yuan, an increase of 25.12%; sealing enterprise value of 7.32 billion yuan, an increase of 11.14% of the good prospects for development, but also attracted a lot of foreign investment in the industry. According to incomplete statistics, nearly two years fluid sealing industry to invest no less than 30 billion yuan, including construction machinery and other hydraulic hosting industry investment funds accounted for approximately 50% of total investment. hydraulic manifold block Sany, Liugong, Long Engineering , Zoomlion, Shandong Changlin construction machinery and a number of well-known enterprises have invested or hydraulic corporate mergers and reorganizations. China is currently seeking high-end break more than 20 tons of hydraulic excavators used for basic control in the hands of an enterprise that Kawasaki company. Each discussed the matter, sand Bossen are solemnly. Domestic high-end hydraulic manifold block the kinds of situation, has attracted national attention. October 2011, after six months of planning, engineering machinery with high-pressure hydraulic manifold system industrialization and application of the preparatory body established collaborative work platform. Under the guidance of government departments in the industry, driven by the working platform focused on the China Construction Machinery Industry Association and the China Hydraulics Pneumatics & Seals Association, two associations of superior forces to HMB as a breakthrough, taking manifold and accessories production Gakken a combined form, increased industry consolidation, the establishment of effective docking platform, and strive in the next 3 to 5 years to break China's construction machinery industry hydraulic and other accessories on foreign dependence.

Hydraulic valve block to achieve the leading domestic

The development of hydraulic valves, according to Chinese nuclear power plant development of the excellent situation and status of the development of nuclear power valve to achieve rapid development of nuclear power, banjo hose fittings manifold localization, Shenyang Saatchi high pressure valves Ltd. Chief Engineer at Guoliang believes that China's valve business, industry and the state should take measures to address the impact of hydraulic manifold block localization issues:
One as soon as possible complements the hydraulic valve block of the technical standards and specifications. The existing EJ, GB, according to ASME, RCC-M standard complements, in line with national conditions, improve the operability to facilitate domestic nuclear power valve in the design, material selection fabrication, inspection and other aspects can be achieved on the localization.
(2) integration of Chinese valve industry nuclear power valve experiments, detection and identification of the equipment and capabilities, sharing resources, avoid duplication of investment redundant construction, speed up the development of nuclear power valve speed.
3. Strengthen personnel training and the introduction of nuclear power technology absorption manifold to hydraulic hose adapters improve nuclear power valve design capability and level.
4 increase investment in software and hardware to ensure that the design, manufacture advanced means, spare parts processing and machine assembly and reliable quality.
5. Strengthen welding, non-destructive testing, heat treatment and other special craft personnel training assessment. Research and the use of advanced technology, the parts manufacturing quality standards to meet the design drawings and specifications.
6 nuclear security awareness education and training of workers, strengthen the manifold block design, manufacture whole process of quality management, improve management level.

hydraulic tube fittings Characteristics and uses

High pressure hose assembly is normally provided by the liquid-resistant synthetic rubber inner layer, middle layer, Ⅰ to Ⅵ layer wire braid reinforcement, and weather-resistant synthetic rubber with excellent performance cover. Mainly used in hydraulic tube fittings support mine, oil field exploitation, suitable for construction, lifting transport, metallurgy, forging, mining equipment, ships, injection molding machinery, agricultural machinery, machine tools and various industrial sectors mechanization and automation of hydraulic transmission system has a certain pressure and temperature based (such as mineral oil, soluble oil, hydraulic oil, fuel oil, lubricating oil) liquid, water-based liquids (such as emulsion, oil-water emulsion, water), gas and liquid transmission and other fields.

Hose assembly failure analysis

1, symptoms: hose inner tube is very hard, has been cracking.
   Analysis: temperature of the inner tube is easily precipitated plasticizer, which is a flexible hose can be a plastic material. Entrained gas oil oxidation allows the inner tube. Occur in the rubber products such oxidation reactions can be cured. Oxygen and temperature, will greatly accelerate the hardening of the hose tube. Occurred inside the inner tube cavitation also have the same effect.
2, symptoms: hose cracking internally and externally, but the elastic material is still soft at room temperature deflectable.
   Analysis: The likely reason is that the hose when the ambient temperature is very low deflection. Most standard hose is rated to -40 degrees, and some AQP hose rated temperature is -49 degrees, usually military hose rated temperature is -54 degrees, and some thermoplastic hose rated temperature is -54 degrees, poly four vinyl fluoride hose rated temperature is -73 degrees.
3, symptoms: hose rupture, hydraulic tube fittings peel the outer layer of wire reinforced rubber examination found that the entire length of the hose irregular wire breakage.
   Analysis: This indicates the pressure of the hose in a highly frequent fluctuations. SAE American Automobile Association, the two-story steel braided hose impact testing required at 133% of the recommended operating pressure of up to 200 000 cycles. About four-spiral hose SAE impact test requirements of up to 500 000 cycles. If the number of pulses within the extrapolation in a short time, more than one million times, the best choice for the enhancement layer wound hose.
4, symptoms: hose rupture, but not displayed on the entire length of the hose with multiple wire breakage. hydraulic hose sleeve May be more than one hose rupture.
   Analysis: This indicates that the pressure has exceeded the minimum burst strength of the hose. Recommended to use higher-strength hose, or hydraulic lines appear abnormally high pressure conditions can cause malfunction.

Manifold and valve member with the combination of research

According to incomplete statistics, in 2011 China's fluid sealing industry above designated size industrial output value of 77.271 billion yuan enterprises, an increase of 21%, of which the hydraulic industry completed 43.62 billion yuan, an increase of 18.47%; pneumatic industry completed 15.046 billion yuan, an increase of 29.60%; sealing industry completed 18.605 billion yuan, an increase of 23.95%. fluid airtight industry 125 key enterprises in 64 hydraulic industry, hydraulic industry 6, pneumatic industry 40, 15 sealing industry, economic efficiency index was 233.56, 226.44 over the same period last year. these key enterprises of the industrial output value of 33.424 billion yuan, an increase of 12.94 percent, of which the output value of 14.171 billion yuan hydraulic enterprises, an increase of 7.72%; hydraulic enterprise value of 533 million yuan, down 4.77%; pneumatic enterprise value of 8.639 billion yuan, an increase of 25.12%; sealing enterprise value of 7.32 billion yuan, an increase of 11.14% of the good prospects for development, hydraulic couplings but also attracted a lot of foreign investment in the industry. According to incomplete statistics, nearly two years fluid sealing industry to invest no less than 30 billion yuan, including construction machinery and other hydraulic hosting industry investment funds accounted for approximately 50% of total investment. Sany, Liugong, Long Engineering , Zoomlion, Shandong Changlin construction machinery and a number of well-known enterprises have invested or hydraulic corporate mergers and reorganizations. China is currently seeking high-end break more than 20 tons of hydraulic excavators used for basic control in the hands of an enterprise that Kawasaki company. Each discussed the matter, sand Bossen are solemnly. Domestic high-end hydraulic manifold block the kinds of situation, has attracted national attention. October 2011, after six months of planning, engineering machinery with high-pressure hydraulic manifold system industrialization and application of the preparatory body established collaborative work platform. Under the guidance of government departments in the industry, driven by the working platform focused on the China Construction Machinery Industry Association and the China Hydraulics Pneumatics & Seals Association, two associations of superior forces to HMB as a breakthrough, hose assembly taking manifold and accessories production Gakken a combined form, increased industry consolidation, the establishment of effective docking platform, and strive in the next 3 to 5 years to break China's construction machinery industry hydraulic and other accessories on foreign dependence.

Characteristics and uses

High pressure hose assembly is normally provided by the liquid-resistant synthetic rubber inner layer, middle layer, Ⅰ to Ⅵ layer wire braid reinforcement, and weather-resistant synthetic rubber with excellent performance cover. Mainly used in hydraulic support mine, oil field exploitation, suitable for construction, lifting transport, metallurgy, forging, mining equipment, ships, injection molding machinery, agricultural machinery, machine tools and various industrial sectors mechanization and automation of hydraulic transmission system has a certain pressure and temperature based (such as mineral oil, soluble oil, china hydraulic hose oil, fuel oil, lubricating oil) liquid, water-based liquids (such as emulsion, oil-water emulsion, water), gas and liquid transmission and other fields.

Structure and working principle

The brake yoke, the excitation coil springs, disc, armature, spline sleeve, mounting screws, etc., the brake device mounted on the flange (or motors) the rear stretch; sleeve and the spline shaft brake disc coupling.
The brake coil when the rated excitation voltage (DC), the electromagnetic force pull armature, the armature from the brake disc (released), then the drive shaft with the brake disc or start normal operation, when the separation or broken drive power, the brake is off at the same time, then the pressure in the armature spring force to the armature and the brake disc friction torque between the flanges, the drive shaft speed to stop. The brake thermal environment is poor, the drive shaft is long continuous work, if conditions allow, you can brake work, keep the voltage is converted to 70% -80% of the rated voltage to reduce fever.
4 Qian Dai electromagnetic brake chain tail electromagnetic brake
The moving parts of the mechanical stop or slow down the mechanical parts. Commonly known as brakes, brake. Qian Dai primarily by electromagnetic brake brake frame, brake components and control devices and other components. Some of the electromagnetic brake is also equipped with an automatic brake clearance adjustment device member.
Some electromagnetic brake has been standardized and serialized by a professional factory for selection. teflon hose Qian Dai electromagnetic brake is an ideal modern industrial automation actuators, mainly from the transmission system in the mechanical power transmission and control of movement and so on. Compact structure, simple operation, sensitive response, long life, reliable, easy to implement remote control and so on.
It is mainly with the series motor support. Widely used in metallurgy, construction, chemical, food, machine tools, stage, elevators, ships, packaging machinery, and when power (risk prevention) braking and other occasions.
So that the mechanical moving parts to stop or slow down the drag torque must be applied is called the braking torque. Braking torque is the design, selection based on the brake, and its size is determined by the type of machinery and work requirements of the decision. Brake friction material used on the (brake parts) directly affects the performance of the braking process, which will affect the performance of the main factors for the operating temperature and temperature rise speed. Friction material should have a high and stable coefficient of friction and good wear resistance. banjo fitting Metallic and non-metallic friction material sub categories. The former are commonly used cast iron, steel, bronze and powder metallurgy friction material, which has leather, rubber, wood and asbestos.

Block brake with external and internal style sheets hold two kinds

Block brake with external and internal style sheets hold two kinds :
① The holding brake blocks : it is the length of stroke by manipulation device is divided into short stroke and long stroke block brake block brake . Short stroke block brake magnet mounted directly on the brake arm. When working around moving core pin rotation to achieve loose brake ; magnet is de-energized by the main spring tight gates . This brake compact, tight brakes and brake release moves fast , but the impact force . Long stroke brake block brake lever system can generate a large pine brake force , but the braking action is slow, suitable for large brake.
② inner sheets block brake : brake wheel brake block is located inside through the pedal , the brake lever and bumps block open , pressed tight inner surface of the brake wheel brakes, the brake pedal is released the spring back blocks and loose brake. This can also be hydraulic or pneumatic brakes and other manipulation. Zhang style brake blocks within a compact, dustproof , and can be used where installation space is restricted , widely used in various vehicles.
Block brake pad The standard applies to foreign holding dual brake blocks . Press the brake pad ( referred brake shoe ) and brake pad connection mode , and the brake shoe ends of the hinge shaft hole without sink hole into the following four categories:
Type B1 : hydraulic hose adapters rivet hole on the brake shoe , brake pad adhesive way connected , brake shoe ends of the hinge shaft bore no sink hole ;
B1C Type : brake shoe is no rivet hole type , way connected with the bonding pad system , brake shoe ends of the hinge shaft hole with sink holes ;
Type B2 : rivet holes on the brake shoe , brake pads connected with caulking , brake shoe ends of the hinge shaft is no counterbore end portion ;
B2C type : rivet holes on the brake shoe , brake pad coupled with riveting , brake shoe ends of the hinge shaft also has sink holes.
2 shaped brake disc brake is applied mine hoist brake system hydraulic actuators, accurate name would be: Normally closed rear disk brake cylinder , is currently used in more rear-mounted fuel tank , start the hoist when the output pressure hydraulic oil open brake , hoist to work, working brake, hydraulic station according to the conditions increase or decrease the pressure , the brake will provide braking force contrary , in the accident state, the hydraulic pressure Back to the residual pressure ,hose assembly the brake at maximum braking force in the shortest time to hoist parking .

Hydraulic power unit (HPU) as oil installations

Hydraulic power unit (HPU) as oil installations , it is through external piping system is connected with a number of hydraulic cylinders to control multiple valve action . Tanks, pumps and accumulators to form an independent power oil closed source system . Petrol stations can be equipped with PLC control system , which controls all internal hydraulic functions and generate signals and the control room (DCS) exchange . Control components such as hydraulic servo valve mounted directly on the hydraulic cylinder , through the valve into the high-pressure hydraulic cylinders, or from which the release of high pressure oil. In the normal state , pump oil to the system to automatically maintain system rated pressure , through the control valve atresia, to achieve the valve in any position to secure his position under the function ; in working condition , hydraulic actuator controlled by the solenoid valve , the system command signal the solenoid valve action, control pressure and the accumulator energy release , and then control slide valve cylinder , valve driven by mechanical transmission mechanism , the implementation of rapid closure of the normal opening and closing , and test control . hose fittings Pressure cylinder can be fixed on the stem can also be used directly as the executing agency . Returns excess hydraulic oil hydraulic oil stations, such piping systems with an inlet pipe a return pipe can control several parallel connection of the valve. This has a special hydraulic drive technology is used to control the main steam turbine bypass valve and actuator system action .
Changsha QIANRUN power unit technology-related technology products
Power unit is designed for all applications optimized design, for example, can be used in harsh environments trucks running or heavy hauler condition for a long time , and other products that require high performance and high quality of the occasion . We will also anticipate greater application flexibility and more cost requirements. Thereby to produce an extremely diverse universal platform , using standard components, able to respond to market demand for most application conditions , the hydraulic components of the customer inventory levels to a minimum , china hydraulic hose but also greatly reduce the workload of the non-standard design . Power unit also makes special reference to cost advantage . For example HE power unit , built on a multi- universal platform, allowing the use of motor sizes from 80 to 132mm (0.3 ~ 4.5kw), the pump displacement from 0.24 to 5.7cc. A power unit can control up to four cylinders . The core component is the adapter . There are two different specifications. With a variety of shapes and installation.

Power adapter market trend analysis

Power adapter market is an important trend is the customer needs to have a higher output power, smaller size of the adapter , which involves the use of a new topology . Power Adapter mainly reflects some important trends . First, the work efficiency and standby ( no-load ) energy demanding. For example, the U.S. Environmental Protection Agency (EPA) " Energy Star" program in April 2008 released a version 2.0 of the external power supply specifications for external power supply EPA2.0 this version of the spec will be held November 1, 2008 came into effect. Power adapter includes two categories, one is the internal AC / DC (AC / DC) power converter, built- in electronic products internally and may possess multiple output voltages , such as a desktop computer's internal power supply, etc. ; reusable fitting the other is the external one-way output AC / DC or AC / AC (AC / AC) power adapter with single output voltage, typically referred to as an external power supply (EPS), widely used in printers , laptops , LCD monitors and gaming applications. In addition to the "Energy Star " kind of industry energy efficiency specifications, some large OEM customers may also have their own unique work of energy efficiency and energy requirements . For example, for computer power EPA4.0 norms for the use of an external power supply laptop and tablet PC requirements are primarily reflected in the standby power consumption (≤ 1.0W), dormant energy consumption (≤ 1.7W) , etc. ; comparison, Dell power requirements for this type of mainly reflected in the different load conditions specific energy efficiency , ie 0.7W ( input power Pin <1W), 1.5W (Pin <2W), 10.7W (Pin <12.6W) and 17W (Pin <20W) load conditions, can be respectively more than 70% efficiency , 75% , 85% and 85%. It is worth mentioning is that the future will continue to regulate the energy efficiency requirements continuously improve and evolve . With laptop AC-DC power adapter , for example, the industry in no-load mode, a high level of energy consumption is about more than 300mW , 150mW and future load mode energy consumption could become targets. Moreover, the requirement for multi-output adapter may also be included among the criteria . ON Semiconductor 's NCP1605 power factor correction (PFC) controller and NCP1396 resonant mode controller can be used to design 200W or 300W Desktop Adapter adapter. hydraulic hose adapters From the notebook adapter , its power requirements from 50W to 70W range has been increased to more than 100W rating. In addition, such as Apple and Lenovo ThinkPadX300 MacBookAir other new ultra- portable notebook power adapter is also smaller and lighter.

Corrugated metal hose technology history

  Since 1855, German inventor and manufacturer of the world's first one corrugated metal hose since, after one hundred years of development, its reliable sealing metal hose , pressure resistance , high temperature resistance , corrosion resistance and flexible , and many other properties, widely used in aviation, aerospace, nuclear energy , shipbuilding and new construction and other industrial sectors , a modern piping systems essential components. With the rapid development of modern industry , metal hose is used widely for metal hose requirements are also increasing, bound to the metal hose technology more and more research , the development of metal hoses generally have the following stages :
      Initially , people used animal skins sewn into a tubular structure to meet the needs of the struggle for production . After a fairly long period , to 70 end of the century , the Dutch Golden Gai Wan del brothers made ​​a longitudinal suture canvas hose , at the time of the fire service is widely used . Later, with the rubber in the international market and the emergence of vulcanization process of development, hoses and metal wire or twine and other fabrics Kai mounted hose come out. But the works of some steam , hot air type high temperature medium ; liquid hydrogen ,socketless fitting liquid oxygen, liquid helium cryogenic medium class ; gasoline, kerosene, acid , alkali and other corrosive media ...... If the hose to transport , of course not. Especially at high temperatures, it is more difficult to ensure the security and reliability .
      Therefore, it gradually to focus on the metal tube , the metal tube geometry to produce the corresponding corrugated external surface . In this way, both with the same flexibility with hose : but also has a high temperature, low temperature resistance , aging resistance, corrosion resistance. Thus, as the metal hose body metal bellows thus produced .
     1855 , first published in Germany in manufacturing bellows patents. It is used when making jewelry has some principles to manufacture bellows . 30 years later, the French and German cooperation in the development of new metal bellows , in August 1885 won the French and German patents.
     l894 , the kind of bellows structure has been improved : People metal band by using two different diameter, wound in the opposite direction . Thus, the stress state of the metal strip in the lower reaches equilibrium with each other to overcome the shortcomings of the spontaneous unfolding .
    In 1929, the structure of the bellows had another technological revolution , which completely solved the bellows filled pad due to bending when asbestos rope rubber band or changes in the grooves of uneven sealing performance loss problems , thus opening up a corrugated tube broad prospects for development .
    From the 1950s began , double, triple , multi-layered bellows. Especially very thin-walled stainless steel bellows developed rapidly . In order to meet the requirements , banjo fitting it is welded , electroforming , machining, hydraulic and mechanical spinning process method to manufacture a variety of bellows .
    Corrugated metal hose from the tube as the significance of the body in terms of the development of metal bellows , metal hose means development .

Corrugated metal hose

Metal hose is an important engineering technology connecting member by corrugated flexible tube, a combination of nets and fittings. In a variety of gas, fluid piping systems as well as length, temperature, position and angle compensation systems as compensation components, sealing elements, connecting elements and a damping element, used in aerospace, petrochemical, mining, electronic, mechanical shipbuilding, medical health, textile electronics, energy and construction fields. Metal hose latest national norms for "corrugated metal hose general technical conditions" (GB/T14525-2010), on October 1, 2011 onwards. Austenitic stainless steel metal hose material or materials required by the user, with excellent flexibility, teflon hose corrosion resistance, temperature resistance (-235 ℃ ~ +450 ℃), high pressure resistance (up to 32MPa), the the pipeline can be connected in any direction, for temperature compensation, and absorb vibration and reduce noise, change the medium conveying direction, remove pipe or between pipes and the mechanical displacement devices, double flange metal corrugated hose to a displacement, vibration a variety of pumps, valves and other flexible joints is particularly applicable.

On Hose Hydraulic Hose cutting machine

On Hose Hydraulic Hose cutting machine cutting machine that is different according to the length of the high pressure hose to hose cut off, and then stripping machine peeling the glue with a crimping machine the inner core and jacket, hose crimping together, after cleaning, pressure test (hose 1.5 times the rated pressure hydrostatic test) to complete the production of a hose assembly, hose cutting machine hose assembly in the production process plays a crucial role. Our home and abroad through the production of cutting machine features do a full investigation and the use of the current domestic production of hose cutting machines with manual, foot, pneumatic and pneumatic propulsion under pressure, such as several power-driven forms, in various drivers form of pneumatic propulsion feed hose cutting machine advantages most prominent, pneumatic propulsion feed hose hydraulic flanges cut length from the impact of German production and domestic Kangmai hydraulic equipment company producing cutting machine (KM-350B type ) is to promote the use of pneumatic pressure hose to cut, sliced ​​by a new motor direct drive, ensuring the linear velocity of sliced​​, cut out the hose end formation, wire does not blow head, high efficiency, and Kangmai produced simultaneously cutting machine Also equipped with a smoke dust removal feature that guarantees a hose assembly workshop we produce work environment, the aircraft cut lengths of pipe cutting device design is perfect, making the cutting process saves time and greatly improves production efficiency. Future hose cutting machine should provide full automation development, with pipe cutting counting function, automatic loading and unloading, the length controlled by the computer program, banjo fitting set the program to automatically cut to length, so we make hose assembly will greatly reduce the cost I hope Kangmai hydraulic Equipment Co., engineers designed a more perfect hose cutting machines.

Hydraulic pipe installation should pay attention to several issues

Hydraulic Pipe installation must note the following:
One should be based on the hydraulic system pressure, flow, working medium, the right to use the environment and hydraulic components and fittings requirements, selection of appropriate diameter, wall thickness and material of the pipeline.
(2) should be considered in the pipeline piping neat appearance and easy maintenance. Preferably arranged in parallel lines, less cross. Parallel or crossover between the tubes should be at least 10mm clearance to prevent contact between china hydraulic hose the pipe and vibration, and fittings to install sufficient space.
3 tube length should be as short as possible, thus reducing the pressure loss and delay and vibration phenomena.
4 the pipe bend radius R of the center line and outside usually determined to be greater than three times the diameter of the tube. Also take a large diameter hours.
5 In the Configure piping system, the force of the pipe to prevent sagging and vibration, you must set pipe supports and pipe clamp the pipe to the bracket. Distance between supports varies with pipe diameter, generally selected within 0.4 ~ 1mm.

Electro-hydraulic block brake - Introduction

Brake System Overview
Brake is braking. Is the moving parts of the mechanical stop or slow the mechanical parts. Commonly known as brakes, brake. Frame from the main brake system, the brake member and the operating device and other components. Some of the brake is also equipped with an automatic brake clearance adjustment device member. In order tube fitting to reduce the size and structure of the braking torque, the brake is usually installed in the high-speed shaft of the device, but the higher security requirements of large-scale equipment (such as mine hoists, elevators, etc.) should be installed near the equipment and part of the low-speed shaft work on. Some brakes have been standardized and serialized by a professional factory for selection.

Hydraulic Flange Machine

Hydraulic Flange machine with independent hydraulic systems and electrical control systems, centralized control buttons and the linkage with jog two modes of operation, the pressure and stroke can be adjusted within the provisions of its reasonable structure, small size, consumption is low, the efficiency engage in, no noise. Loading and unloading quick and easy to use, simple operation, high load capacity, long life, reusable fitting rolling speed, quality and reliability of a machine and many other advantages, instead of the original steel plate material, docking, correction, lathe and other complex processes and saves oxygen , acetylene, labor, raw materials, etc., is an advanced machine tools manufacturing flanges.