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.

Hydraulic tube fittings can not be used to replace ordinary dedicated connector

Hydraulic tube fittings in the hydraulic system, the connecting member and the pressure tubing pressure tubing between. Hydraulic tube fittings can not be used to replace ordinary dedicated connector, because the hydraulic are can withstand a lot of stress. In the hydraulic system, either a metal hydraulic tube fittings, hoses or fittings, are prone to leakage problems. For card sets of pipe joints, mostly due to the pipeline by a hydraulic tube fittings  force or impact, so that the card sleeve loose or pipe end surface deformation caused by leaks, you should check whether the card sets out of round, edge or without defects, whether the pipe ends in good condition and the extent of compression ferrule nut, but also eliminate the pipeline force. For Hydraulic tube fittings tube hydraulic tube fittings, mostly due to excessive flaring, substandard quality requirements or repeatedly demolished, resulting in flaring deformation or cracks caused by leaks, then you can be re-flared front amputated. If you use a male and female cone top pressure seal, which is mostly due to the two cone leak damage, is available on the cone grinders for grinding. For use oil sheet, wool felt, soft steel board, combination gasket sealant joints or pipe leaks, no matter what the material is, you should first check the seals for damage, deformation, aging and rough through the large, etc. and then take the appropriate measures.

Stainless steel quick joint characteristics

1, time and labor saving: breaking and connecting circuit through a quick hydraulic hose assemblies , the movement is simple, save time and manpower. 2, fuel-efficient: broken circuit, singlevalve fast hose assembly can be closed oil circuit, oil can not flow out, avoid the oil pressure loss. 3, environmental protection: quick connector and connect broken, oil can notleak spilled, Protect environment. 4, equipment, unique design, convenienttransportation: large equipment or hydraulic tools need to be easy to carry, use the fast joint after the split of transportation, destination and then assembled using. 5,economic: the above various advantages of creating economic value for customers.

High-pressure hose hidden precautions

First, choose a brand , quality assurance business , quality assurance, sales and service companies generally better manufacturing , high quality requirements .
Second, pay attention to the hydraulic fittings high-pressure hose assembly installation and operation. Not blindly cut production .Third, the high-pressure hose for industrial products, the use of units should be aware of their required product specifications. Blindly buy one of the factors also contributed to the quality problems .Fourth, as the user , but also pay attention to the high-pressure hose storage environment.

Metal hose selection

For a certain length and gauge metal hose, its ability to withstand stress and shock have certain limits, therefore, when used to choose according to the actual situation. Generally used with a nominal hydraulic hoses pipe same nominal diameter, length of the hose under the sink array of tanks, lateral displacement temperature deformation, misalignment, and other factors to produce an earthquake to determine. Corrugated metal hydraulic ferrules, nets and joint composed of three parts, bellows are made ​​of stainless steel, with good flexibility, small longitudinal rigidity and bending stiffness, can work within a radius of curvature of the nominal, with strong corrosion resistance and good temperature stability. Nets from the strengthening of the role of the metal hose with a larger carrying capacity. Therefore, the metal hose with shock, subjected to bending, absorb stress.

Overview of the hose

Hoses are divided into: stainless steel hose, metal hose, corrugated hose, plastic hoseCorrosion resistance of stainless steel hydraulic ferrule depends on the content of chromium, when added to the 10.5% of chromium, the atmospheric corrosion resistance of steel significantly increased, but the higher chromium content, while still being improved corrosion resistance, but obvious. The reason is that when the steel with a chromium alloying treatment, the type of change has become similar to the surface oxide formed on the surface of pure chromium oxide of the metal.Chromium-rich oxide protects the surface of this tightly adherent to prevent further oxidation. Such thin hydraulic fittings oxide layer, through which you can see the natural luster of stainless steel surfaces of stainless steel has a unique surface. Moreover, if the damaged surface, and atmospheric reactions exposed steel surface will self-repair, re-formation of this "passive film", continue to play a protective role.

use of the high-pressure hose size

When the high-pressure hose be withheld , will always produce withhold too tight or too loose phenomenon, and these phenomena often lead to adverse effects of high pressure hose . Today we say it is the size of the amount withheld would it have any effect on the high-pressure hose . We carried out by the following detailed understanding .Withhold the amount and rate of withholding high pressure hose and fittings assembly when the improper or joint structure and material , size selection is unreasonable, can lead to high pressure hose and fittings withholding too hydraulic hose assemblysor too loose will cause early damage to the joints .When assembled , if the withholding amount is too small, that is between the high pressure hose connector and cut through the loose , high pressure hose there may emerge in the role of oil in the early use from the joint ; If withholding is too large, then the connector and hose too hydraulic tube fitting , easily lead to hose inner being localized damage, cracks , directly into the high-pressure oil from the ruptured steel layer , and then he went to the wire along the gap between the spray coat tails , or has fled somewhere along the wire layer build up , so that the outer layer of plastic to produce drum kits and even rupture . Hoses and connectors in the assembly, if the withholding too fast, likely to cause damage to the plastic layer and the wire break, so that premature failure of the hose in use .The above information is very detailed description of the effect of the size of the amount withheld for the use of high-pressure hose produced , so we need considerable attention when using this withholding his dosage size is accurate, whether the mutation will produce high pressure hose , etc. problems should close attention.

Many factors will affect the use of hose assembly

Many factors will affect the use of the hose assembly. The first is the size of the hose. Inner diameter of hydraulic hose assemblysto the right, if it is too small, will affect efficiency. If the inside diameter is too large, will affect the overall system performance of the play. Therefore, it is important to select the appropriate inner diameter. Second, hydraulic hoses will also affect the temperature range of use. If the hydraulic hose working environment temperature exceeds the specified range, then the hydraulic hose pressure capacity will thus be greatly reduced. Experts suggest that if the high or low temperature working environment, should be put on the hydraulic hose jacket. In addition to the above two factors, the use of hydraulic hose assembly Hose working pressure is also affected by the impact stress and fatigue life, impact bending radius and chemical compatibility and other factors.
Hydraulic hose assembly in our lives is very wide, in the mining industry, agriculture and industrial sectors have a lot of use. It is transmitted through water and gas or oil substance hydraulic power to ensure adequate fluid energy during operation.

By utilizing high pressure hose and connector assembly and buckling mode selection is improper

By utilizing high pressure hose and connector assembly and buckling mode selection is improper. Or joint structure, material, size selection is not reasonable, can lead to joint and hose pressure too tight or too loose, causing joint early damage. The assembly, if the withholding amount is too small, crimping connector and hose pressure hydraulic flangestoo loose, under the action of oil pressure hose disengages from the joint may at the initial stage of use; if the withholding amount is too large, then the buckling pressing joint and hose pressure too tight, easily lead to hose inner layer by local damage, deformation, produce crack, high pressure oil from weak, rupture directly into the wire layer, then along the rear of the jet slot channeling to coat steel wires, or has been along the wire layer channeling somewhere accumulates, the outer layer of the hydraulic tube fitting drum kits and even cracking. Hose and connector in the assembly, if press speed too fast, easy to cause damage and fracture of the glue in the wire layer, so that the hose damage early in use. In addition, the joint design is not reasonable, Jerry, the processing quality is bad, can also cause the glue in the joint damage; if the improper material selection, not up to the high pressure hose assembly requirements. Will shorten the service life of the high pressure hose.

Because plastic coated hose connector design unreasonable phenomenon caused by the failure

Pack plastic hose connector design is essential, which is the core technology of hose assemblies. In actual operation, including plastic Hydraulic adapters connector design is often not a good grasp of various key points, it will cause a variety of failures. Because plastic coated hydraulic hose assemblys connector design failures caused by the unreasonable phenomenon is most prevalent are withheld at the inner tube longitudinal cracks appear and circumferential cracks are two, there are other symptoms, but not common. There are the following two: 1 withhold longitudinal cracks appeared at the inner tube site withhold the end of the sleeve, the inner tube vertical microcracks appear, once a crack running through, it will result in failure of two hydraulic tube fitting assemblies withheld at the inner tube circumferential cracks appear in actual use, and the testing process is also one of the more common symptoms. Inner tube circumferential cracks appeared after the weak link here will become, along with the gradual extension circumferential cracks, often in the form here leak, resulting in failure of hose assemblies.

Butt weld dissimilar metal joints

Dissimilar metal joints or butt weld two different metals from the base material welded directly or using the first isolation layer added, after the method of welding, in the latter case, the spacer layer and a joint assessment of the welding process can be performed hydraulic flangesimultaneously .Taking into account the performance of existing materials, in all cases, especially in the cut specimen should be cut so that the specimen should be able to reflect the characteristics of each connection area and observe the following precautions:Transverse weld test should have been done the base material, the isolation layer (if any) and weld hydraulic fittings. Bend test shall be to make the fusion line, the isolation layer, deposited metal under stress manner. The number of samples and sampling method with the joint geometry should change.

Card sets of pipe joints without welding process

Card sets of pipe joints have a solid connection , pressure capacity, high temperature resistance, good sealing and repeated installation and maintenance easy, safe and reliable. Card sets hydraulic ferrule joints pipe working principle is to insert the card kit, using the ferrule nut , inconsistent card sets, cut hydraulic adapters and seal. It is connected with hydraulic adapter without welding , is conducive to fire, explosion , and high-altitude operations , and can eliminate the evils of welding accidentally . So it is refining, chemical , oil, gas , food, pharmaceutical , instrumentation, piping and other systems controlled device in a more advanced connections . For oil, gas , water, etc. piping connections .

Metal hose brazed joint structure and characteristics

Metal hose connectors are widely used in oil and insulating oil and turbine oil transportation . As a medium delivery hose has a higher pressure and temperature. Therefore, if a leak or desoldering welding parts will cause serious accidents. There are inner and outer metal hose . The inner layer is Φ2O × 2mm hoses. The thin outer layer of woven steel mesh . Two layers are made of 1Cr18Ni9Ti. Hose which mainly acts as a seal . Hydraulic hose fittings mesh from strength to protect ashamed to use . Recently factory production hose three gods in the form ( spiral integral , roll -welded and brazed ) . Since the metal boiler delivery hose at runtime withstand high temperatures and pressures , often subject to bending stress. Therefore recommend the use of the whole spiral hose . Hose transported to the site after the installation of a short stainless steel Hydraulic pipe fittings , while the fine plus a stainless steel outer and brazing , braze weld pipe work must ensure sealing and bear turns force .

Metal hose used for automated meter signal wire protection tube and instrument protection tube

Metal hose used for automated meter signal wire protection tube and instrument protection tube. Instrument for the protection circuit, protecting precision optical ruler to protect the sensing lines threading stainless steel hose, metal hose electrical protection; stainless Hydraulic hose fittings, good softness, dustproof, waterproof, anti-oil, anti-rust; abrasion resistance, and provide some shielding effect. The sensing for precision optical ruler line protection, industrial sensor circuit protection. Has good flexibility, corrosion resistance, high temperature resistance, abrasion resistance, tensile strength.

Metal hose technical knowledge

With the rapid development of modern industry and the mutual penetration of various disciplines , metal hose in the machinery manufacturing , petrochemical , instrumentation, and is widely used on various projects . Nearly three decades, it has expanded used in aerospace, aviation, nuclear power, shipbuilding, electronics and new construction and other industrial sectors , a modern engineering technology indispensable accessory , plays a prominent role. In China , it appears the early fifties the most original Hydraulic tube fittings, which is based on the strip is wrapped around the body of the bellows . However, it is developing very fast , after five years or so , we have gone through other countries traveled nearly a hundred years . Currently, we have been able to produce some reached the international advanced level of metal hose . However, due to technical exchange and standardization issues, a number of technical personnel in the field of design of the structural characteristics of modern metal hose , performance indicators is not very clear , resulting in a lot of new metal hose should use the occasion still Hydraulic ferrules structures in the form of relatively old metal hose , rubber tubes and plastic tubes . Universal metal hose technical knowledge , is to enable more people to become familiar with and master the knowledge of modern metal hose for wider and more reasonable to use it .

Shrink cable joints preventive measures and treatment process

Cable insulation stripping , the application of fine sandpaper carefully polished surface of the main insulation layer , making it smooth and no marks , no semiconductor residual points . The insulation must be cleaned with cleaning solvent from the core to the semiconductor shield direction , do not use the shield contact with the semiconductor cleaning cleaning paper the main insulating layer surface .After crimping wire core , application file, sandpaper carefully polished to eliminate edges and tip , and pay attention to the metal fines shall not remain on the surface of the insulating layer .Cable connector in the production process should pay Hydraulic ferrules attention to keep clean , but should try to shorten production time , cut the cable after stripping , exposed to air for longer , intrusive impurities , water , gas , dust, etc. , the greater the possibility to affect joint quality . Therefore requested prior to construction to fully do the preparatory work to ensure uninterrupted production at one go. Production shrink joints should be carefully checked before cable accessories and cable facilities, so as to strictly control the shrink silicone rubber insulating sleeve amount of interference , to ensure that they have sufficient grip force, the interface close contact, no air gap . Respectively, in each phase after shrink Hydraulic adapters composite insulating sleeve surrounding the two ports at the semiconductor self-adhesive tape . Thus, both the silicone rubber casing semiconductor layer and semiconductor XLPE cable outer shield good contact , but also play the role of axial waterproof .Surrounding the self-adhesive waterproof tape, shrink connector moisture seal is key to a semi- overlap method ported from one to the other end of the connector wrapping , and then wrapping the opposite direction from one end to the starting side , wrap two layers. After each wrapped with both hands clasped in turn again, to make it better bonding. Be sure to pull the appropriate wrapping , so tightly wrapped seamless .

Metal soft metal hose construction, construction methods using segmented pipe

Metal soft metal hose construction, construction methods using segmented pipe construction , the use of segmented construction methods , in advance of the original arch culvert base with angle side by side two , the length determined based on long culvert . Culvert advance for the rails, corrugated culvert pipe diameter according to project needs may have different specifications , ready to pipe diameter of 0.5m - 2.5m; each section of pipe length 3 meters. Using internal ( external ) flange bolts. Assembled pipe diameter of 3m - 8m. Each circumferential direction 4 --- 15 plates, lap board and the board strength bolts tightened. If Han longer than 30 meters, the corrugated culvert culvert sides of the original width of less than 80cm, length 3m-6m may be downstream or upstream culvert advance toward the one end , in place later , it can be fixed to the top of the sheet rock masonry end wall , the other end of the corrugated culvert culvert with sandbags or the distance between the mortar and stone block , width 50cm, then start filling . Both sides of the law can be dense or coarse watertight concrete pouring Vibes tamping ; top with high-pressure pumping expansive cement mortar . This section tube four weeks after they have finished filling the second pipe shipped to carry two connections , corrugated culvert pipe are connected to the inner flange bolting , workers in the pipe connection. After connecting to the same method as backfill . In this order , to complete the construction of the entire road corrugated culvert work . Hydraulic tube fittings , according to the selection of electrical equipment into the cable connector metal hoses and Hydraulic pipe fittings, metal hose fittings according to the size of the transition metal hose connector panel mounted connector and metal hose , so that the whole system is naturally smooth ; transition joints can either press the need to produce at the construction site can also be mass-produced in the factory according to standard parts , with the use of promotional value ; cable can extend the life of the cable to be effective in preventing injury leakage and other external forces generated security incidents.

English expression fittings

Some of pipe fittings industry jargon is no specific point in the online English translation, the major off pipe fittings manufacturers also do not have English Introduction. Such as tube fittings, terminal through connector, plug-welding elbow, two-way connector body and so on. Tee: three-way pipe connector terminal through connector: Straight thread connector plug welding elbow: Through welded elbow-way connector body: bidirectional Hydraulic ferrules pipe fittings, intubation pieces, threaded pipe fittings Butt-English names are welding fitting (referred BW Fitting), Socket welding fitting (abbreviated SW fitting), Threaded fitting. Fittings, pipe fittings may be on domestic non-standard argument. About the tee, is divided into equal tee (Equal Tee), also known as straight tee (Straight Tee), and reducing tee or Reducing Tee (Reducing Tee), in the actual business dealings, the general would not have said fitting it.

Cracking Analysis of high-pressure metal hoses

Chemical composition of the base metal hoses meet the standard requirements , microstructure normal . Failure hose member and the base metal and weld finished piece unused micro-cracks are present on the hose , the hose which indicates that micro-cracks before they are used . According to the position and shape of micro-cracks can be divided into two categories: one is located on the weld , the weld along the direction of the main direction of the crack , in addition to many cracks perpendicular to the main secondary cracks , these cracks are located weld intergranular columnar crystal Hydraulic tube fittings is formed when the welding weld cracking ; second crest of microcracks in the inner surface of the hose , these micro- cracks in the circumferential direction along the hose (Up direction perpendicular to the weld ). and substantially parallel to each other , since the majority of these micro-cracks exist in the inner surface of the crest , and the analyzes were performed by location and morphology with regularity , so these cracks should be rolling waves generated when processing cracks. In welding and molding process , the micro crack initiation at the inner surface of the hose in the subsequent assembly process of trial and the use of extended fatigue microcracks , finally cracked through , causing oil spills . Recommended welding hose and processing to improve, in order to avoid the generation of microcracks .