The existence of stainless steel metal hose industry problems

1 the cost of rising prices. Iron and steel as the main raw material of stainless steel metal hydraulic hose adapters production has entered the price open and transparent small profits era, rising steel prices will push the stainless steel metal hose production cost;
The brand is poor in China 2 stainless steel metal hose connector industry, international competitiveness is weak. As a result of industrial concentration is low, backward technology, low price competition can not be avoided, China stainless steel metal hose is such a huge market has no real sense of "famous brand on the international";
3 fierce competition constantly eliminated a small stainless steel metal hose enterprise.
4 R & D strength is weak, insufficient capital investment. The technology progress of our country still stays in the overseas in twentieth Century 80 time, although it is a large number of the introduction of advanced technology and production lines, but the basic support for the technology digestion and absorption of the lack of hardware and software.
5 practical technology brain drain. At present, although China has engaged in research work in some colleges and universities, a lot of ethical research, patent papers have a very high level, but combined with production practice is not close, the theory into the finished product ability is poor.

Range hydraulic flanges flange joint very broad

Range hydraulic flanges flange joint very broad, flange rubber fittings, flanges expansion joints, flanges dowel joints, flange hose fittings and other collectively referred to as flange joints, flange joints called to say its connection by flange connections, there are a variety of materials. Advantages Hydraulic flanges are: small size, light weight, good flexibility, easy installation and maintenance, can hydraulic flanges lateral, axial, angular displacement, from the pipes of different heart, not parallel flange installation restrictions, can reduce the structural work pass noise, strong vibration absorption capability. Advantages flange hydraulic flange fittings joints is: when the outside temperature changes, the tube allows free expansion pipeline capacity within telescopic range, locking telescopic amount, to ensure safe operation of the pipeline. Transmission Joint Flange advantage is: can effectively compensate and mitigate pipeline and Blind thrust, but also easy to pump hose connector flange advantage is: has good flexibility and fatigue resistance, making it very easy to absorb various sports deformation cyclic loading, especially the ability to compensate for the large amount of displacement in the piping system.

Hydraulic hose assembly is commonly used in the hydraulic system an auxiliary device

Features Uses: High pressure hydraulic hose assembly is normally provided by a liquid-resistant synthetic rubber inner layer, middle layer, Ⅰ to Ⅵ layer of steel wire braid reinforcement, and weather-resistant with excellent performance synthetic rubber cover. Mainly used in hydraulic hose assembly support mine, oil field exploitation, suitable for construction, lifting and transport, metallurgy, forging, mining equipment,hydraulic hose assembly , injection molding machinery, agricultural machinery, machine tools and various industrial sectors mechanization and automation in the hydraulic system has a certain pressure and temperature of petroleum (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, connector means to provide full hydraulic hose fittings and supply solutions for the specified operating conditions. Including hose (or hard pipe), seals, connecting accessories (such as fittings, flanges, etc.). Factors affecting the use of a lot of hose assembly, only in accordance with the conditions and the correct selection of hose fittings, hose in order to ensure that the use of reliability and economy.Hydraulic hose assembly is commonly used in the hydraulic system an auxiliary device. Hose (hose) assembly is an auxiliary hydraulic system commonly used.

Characteristics of the metal flexible joints

Corrosion resistance: 1 main metal soft joint with 304 or 316L stainless steel molding, made of stainless steel or carbon steel joints at both ends of the joint, has good corrosion resistance. Ensure that the sealing. 2 the appearance of the United States: metal soft joint appearance Cheng Liang, permanent bright as new. 3 high voltage: considering many practical work pressure, metal soft joint use of the environment and the use of state, all of the parameters are the result of a careful calculation and experiment, to ensure that the pressure in work safety. The 4 shock proof, dislocation: stainless steel corrugated hydraulic hose manufacturers has good flexibility and compensation displacement characteristics. The 5 construction is good: metal soft joint for the thin wall hydraulic hose fittings , our company mainly engaged in stainless steel metal hose, the overall weight, greatly reduces the load of construction operation and construction time. 6: Cangzhou Zhongwei tube manufacturing many kinds of existing metal soft joint diameter range: DN8-DN4000, other customized according to customer requirements.

The package installation and application range of plastic hose connector

Plastic coated metal hose is mainly used in the production, processing of cable protection. Because the plastic coated metal hydraulic hose manufacturers is light in weight, and flexible with good connecting strength, accessories, electrical properties and oil resistance, water splash and other characteristics, so is widely used in electric power, chemical industry, metallurgy, light industry, machinery and other industries. The package uses plastic hydraulic hose couplings is the protection of wire and cable as well as for insulation, waterproof, and can increase the cable bending appearance.
Although the metal hose can be compressed can be stretched, our company mainly engaged in stainless steel metal hose and other products, but if not in the correct position to install, it will soon break, reduce the service life. Package selection of plastic hose, hose should reference material machine corrosion resistance and corrugated metal hose plastic package nominal diameter, when in use, the first cable wire into the pipe, with corresponding DPJ joint model can be.

How to buy and use metal hose

Metal hydraulic hose manufacturers occupied in modern industry's position was certain. However, if the selection is not correct, the use of unreasonable or not installed properly, could not get ideal effect, even caused serious economic losses. Therefore, the engineering design personnel, operation and repair personnel, all kinds of metal hose connector on the proper use of knowledge must have a basic understanding of.
The selection of the length of
"Hose, can be short or long". However, metal hose working conditions often due to determine the length of inappropriate, caused by this or that problem. For example: metal hose compensator used for too long, will produce the instability; the pump inlet, pump outlet used metal hose is too long, will produce the additional vibration; metal hose is too long for the pipeline system, will produce large fluid resistance etc.. Of course, put them to shorten the length of some, there can avoid these problems. However, blindly shorten. It is impossible to achieve compensation, vibration, noise elimination purposes. At the same time, the superiority of the metal hose in other aspects are not fully reflect. So, to determine the metal hose length is a very important work.
(1) as a metal hose compensator for, its length depends on the diameter size. The following basic principles: the calculation of diameter less than or equal to 250 mm, diameter less than or equal to 400 mm in diameter, that is less than or equal to 1000 mm,: in the pipeline system, if the compensation of a compensator is not enough, you can use two, three....... If by spatial location conditions, compensator may not install a plurality of, can choose a duplex structure. But the formula (7. (7, 1). (7, 2). 3) principle shall not violate.
(2) for the vibration, the elimination of the pump inlet, pump outlet pipe with noise, depends on the length of the path size, i.e. diameter less than or equal to 100 mm, formula (7. 1) ~ (7. 4), the L compensator or metallic flexible hose length; for the compensator or metal hose diameter.
(3) metal hose angular displacement, length depends on the actual bending radius and displacement angle. That is, (4) metal hose of lateral displacement, length depends on the actual bending and transverse displacement radius size. That is: cut the line refers to the time of the lateral displacement of the metal hose, transitional stage two of the same radius, different direction bending pipe. The calculation, according to the times of the diameter generally consider the length of.
(5) in the bending state, parallel longitudinal movement of the metal hose length depends on the actual bending radius and longitudinal movement quantity. That (6) in the bending state, the parallel sections of lateral movement of the metal hose length depends on the actual bending radius and the transverse moving volume size). That is the formula (7. 5) ~ (7. 2), and L is a metal hose flexible segment length; for metal hose diameter; displacement angle; Y is a single horizontal displacement; T is the total displacement of longitudinal or transverse quantity.

DKJ connector

DKJ connector layout and characteristics: DKJ card type of flexible metal hydraulic hose adapters, steel and hose connections will be no threads, save the threading process, only the screw is screwed into the can; metal joint is made of zinc alloy material by die casting, surface galvanized, frosted, or chrome plated; layout tight, high strength. Reliable, connection pipe and the metal hydraulic hose assemblies surface is beautiful; the metal joint for sleeve type, stainless steel metal hose to the metal hose connection on the steel pipe is threaded metal hose; adaptation: JS type, JSH type, JSB type, JSHG type; adapting pipe: a thin steel wire tube, black and galvanized iron pipe (water, gas pipe); use DKJ card type metal joint note standard, scale steel hose connection.

Metal hose fittings

The effect of Chinese metal hose stainless steel hydraulic hose couplings fittings Reuters is the first network sets of bellows coupling as a whole, together with a metal hydraulic hose adapters connector is metal hoses or other fittings, equipment coupled components. It normally guarantee media jobs in the pipeline system. Information joints usually bellows, network data sets, as much stainless steel main. When production costs decline, some larger diameter metal hose is not strong in transporting corrosive or non-corrosive media, carbon steel fittings are available; corrosive media work on metal hose connector case, if depicted the adoption of appropriate measures to avoid touching the medium, it is possible to manufacture carbon steel. Layout joints generally divided into spiral, flanged and fast three categories: 1, thread type: diameter 50

The effect of stainless steel metal hose connector is first the mesh sleeve and the bellows coupling as a whole, together with a metal hose connector is metal hoses or other fittings, equipment coupled components. It normally guarantee media jobs in the pipeline system. Information joints usually bellows, network data sets, as much stainless steel main.  When production costs decline, some larger diameter metal hose is not strong in transporting corrosive or non-corrosive media, carbon steel fittings are available; corrosive media work on metal hose connector case, if depicted the adoption of appropriate measures to avoid touching the medium, it is possible to manufacture carbon steel.Layout joints generally divided into spiral, flanged and fast three categories:
1, thread type: 50 mm diameter metal hose fittings, in the case of accepting a higher operating pressure, and many more screw-type main thread when tightening the future, within the two connectors on the outer taper surface work closely to complete the seal. Cone angle is usually 60 degrees, 74 degrees is also useful. The layout of the tightness, but it is necessary to guarantee the concentricity of the two pieces when docking device. To deal with the practice of engineering often see repeat demolition, installation and easy concentric and other issues, can be portrayed as the joint cooperation of the cone with the ball.
2, flanged: diameter of 25 mm above the metal hose joints, usually in the case of acceptance operation pressure, to the main flange disc, which cooperate in the manner of tongue and groove seal. Along the radial direction, and we also can slide axially Looper flange bolt tightening tension in the two-body effects of convergence. The layout of the outstanding sealing function, but the process is difficult, simple sealing surface bumps. In special situations that require quick release, it is possible to tighten the bolt through the hole gash, made ​​quick release flange.
3. Express type: Path for various metal hose fittings 100 mm or less, and at the request of the use of rapid loading and unloading conditions, usually selected type fast. It is commonly used plastic or special fluorine rubber O-ring seal. When moving the handle must viewpoint future, the equivalent of fingers long thread is locked; O-ring will be kept more tightly, sealing function better. The layout in the fire, field and other necessary quick quick release most suitable occasion. Within a few seconds, with no need to use any special tools, it is possible to open a group or butt joints.