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.

hydraulic hose reinforcing material, which has several

Hydraulic hose fittings, currently used and is studying the skeleton data to develop inclusive of cotton, nylon, high-strength steel wire, flax, linen, polyester, glass fibers, asbestos and carbon fiber, rayon and polypropylene, convention, from Select strengthen these categories data, as a decisive factor in voltage grade.

        When dealing with those hose adapters more special fabrics such as polyester and polypropylene, it is necessary very careful to assure precise heat setting level, or when the onset of vulcanized rubber hose should not have deformed.

        In the use of polypropylene, it is necessary to think about curing temperature carefully. Degrees premise, since in many places, this temperature is very close to the softening point of the substrate. When using this type of yarn or fabric, special adhesive system is also required in order to guarantee the hose and components with plenty of well-organized and the Heart of the bonding results.

        Glass fibers and asbestos fibers have been used for steam hose and other heat-resistant hose. Of course, the wire is also used for such use.

        The presentation of a new carbon fiber gum gum category can be used, but the current cost of this new information is high. Therefore, in addition to over the coming years in the space outside the scope does not extend to use; and carbon fiber on which points are worth noting: For tensile strength as compared to the carbon fiber reinforced fiberglass difference information with little or no two who has a high tensile and low density values ​​- equivalent to 25% of steel, however. great benefit of the use of carbon fibers reinforced with such media is high strength steel having a large data five or six times greater than the glass fiber characteristic modulo value, characterized in modulus can be used as a measure of tensile load, which can support the specific component of the beam and not flat clothes, thus. subsequent carbon fiber tends to be used for the reinforcement of metals and ceramics, and not as normal that the pure fiber data: it is Christ in the rubber industry can be very useful in the manufacture of fittings and hydraulic system dynamic sealing,

        Another high-strength, high cost fibers are chemically aromatic amine polyphenol family, a member of the demand is high strength, excellent heat and chemical resistance of places, with it specifically useful. The usefulness of the system include hose: Heavy launch machine (such as persistent heavy-duty engine and diesel engine vehicles convergence refrigeration and heat pipe) and subsea wells seawater for use on equipment-based high-pressure hose and so on.

65, mining machine fabric hose should pay attention to what?

From an opening, you use machinery and to improve their quality of life and a perfect mission effectiveness.teflon hose  Mainly hydraulic hose industry significantly affected, forever altered the appearance of human machinery. Hydraulic hose system, relying on high-pressure liquid power of money, cloth hose in order to implement its instinctive drive. This liquid purity is to shut the main form so that it can carry out its objectives, which means to go through the operation of petroleum distillation system hydraulic hose liquid filtration lost any impurities.

       In ancient times the motor cylinder and complicated varieties, will transfer cylinder and motor oil through the control valve hydraulic hose, hose, tubing. In our daily use for performing the main instinctive function, so a lot of mechanical hydraulic hose systems function in their use. Bulldozers, classified as reptiles, rigid plates move applications to participate in another set of each wheel, the use of the continuation of the track. Continue to track the activities of this goal is distributed over a larger surface of the wheel will be removed from pure mechanical quality. Bulldozer equipped with a dozer blade. "

       Bulldozer, even for a long time assigned to various types of machinery, accurate use of terminology to describe a dozer a persistent drive.

      This blade is the application of moving debris, sand and dirt, especially in the establishment of the task. In the first bulldozer, its blade brake, or a winch system moderation. They are currently equipped with a hydraulic cylinder, and promised a finer blade operation. Another exercise its function of hydraulic hose pieces are mechanical excavators. It is a commonly known as the excavation excavator stuff.

       Metal hose which in essence is a persistent machine, equipped with a hinged arm excavation program, the final one bucket. This is the closest to the vehicle's arm is called prosperity, another part is the arm scoop. Bucket and arm, accurate and highly complex activities thriving hydraulic hose momentum.

      Forklift hydraulic hose systems, and power supply. This mechanical lifting and transporting heavy goods, especially in mobile and landing pallet in the warehouse and distribution center inventory using industrial trucks. Forklift mast is progress and reduce the load performed most of the tasks.

cloth hose Application examples

As we raise the level of agricultural production have become increasingly demanding urgent and inevitable fabric hose applications in industry and agriculture production will continue to increase, such as water, whether it is in our daily life or in industrial and agricultural production in the folder cloth hose in the application of water is the most common, another example oil, oil on fabric hose in the application do not have to say it, have applications in a variety of mechanical equipment. In short, cloth hose production is essential in our lives, following on the introduction of the structural fabric hose - characteristics and application to do some introduction:

A, fabric hose structure: is hose adapters from the tube, multilayer cloth weaving or winding layer, the outer cover. Cloth attracts hose is from the inside layer, multi-layer cloth winding layer, spiral steel wire reinforced layer and outer layer.

Second, fabric hose Features: Hose has a small diameter tolerance, oil, heat and other excellent performance, lightweight, durable soft tube, etc.;

Third, cloth hose Usage: According to the nature of resistance to media layer can be divided into pipes, air pipes, lose acid pipe, pipeline heat tubes, etc., are widely used in industrial and agricultural machinery and equipment, etc. Each type of fabric hose is based on transport different media, the choice of appropriate materials, is used to transport the (positive and negative pressure conditions) a variety of liquid and powdered solid sticky fluid medium such as a flexible hose material.