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.

China CNC cutting machine transition from extensive to intensive management

China CNC cutting machine transition from extensive to intensive management
Although China's CNC cutting machine start over, but by the downstream machinery processing and other related industries, demand for support, the rapid development of the industry as a whole, the scale is also growing. But

For now, although the strength of many companies has improved, but still in the extensive type of business model. Due to excessive competition, product homogeneity serious, resulting in profits empty

Cramped, but also to the development of many companies fettered.

Price competition in teflon hose the adverse market environment, a large number of domestic manufacturers and brands is not prominent, the lack of technological innovation, heavily dependent on foreign advanced technology, lack of core

Competitiveness. Meanwhile, rising labor costs, coupled with the rise in raw materials also greatly increased the number of corporate cost pressures. From the above phenomena can be predicted, intensive hair

Exhibition mode will certainly be a lot of CNC cutting machine tool enterprises in the future development direction.

Transition from extensive to intensive, low-technology that is changing the content, low management level, low-cost-effective manner, to the high-tech, high capital levels,

High level of management, high economic quality, high cost of operation.

A CNC cutting machine tool industry demand "strength training"

Walking intensive development path, you first need to do is to change their concepts, and establish long-term development of the concept and to develop a viable goals and plans.

Meanwhile, CNC cutting machine tools companies need to come out from the price competition, steering practicing internal strength. "Focuses on the optimization of product structure, product quality improvement, the core technology

Technique mastery and innovation, and the growing influence of corporate brand. Of course, this series of shift requires more capital investment enterprises, which, CNC cutting machine tool enterprises

Industry also needs according to their own circumstances, input-output ratio in the future to make a scientific estimate, so as to selectively invest for a gradual transition.

Second, multiple channels to improve operational efficiency

Intensive management in order to improve efficiency as the ultimate goal, take intensive development path, be sure would like to "low-input, high-yield" business goals, which requires NC

Cutting machine tool companies from many aspects change is undertaken.

On the one hand, companies need to constantly improve enterprise management level, to improve the overall performance management, optimize departmental structure, human resources and avoid waste of time,

While optimizing internal competition mechanism, improve the professional quality of employees.

On the other hand, CNC cutting machine tool enterprises may wish to try high-tech business, to develop computer network engineering, office tools through improved operational efficiency and enhance

.

Third, the development socketless fitting of CNC cutting machine tool enterprises centralization

Strengthen the supply chain upstream and downstream enterprises with close ties to form a strong competitive centralized district of CNC cutting machine, CNC cutting machine for some merchants

And enterprises, enhance their competitiveness and expand market share, has important significance.

Good industrial plan to promote industrial upgrading