Metal hydraulic hoses are a very important component for fluid transfer today. Metal hydraulic hoses are used for high-pressure fluid power applications on mobile and stationary machinery. If you have questions about metal hydraulic hoses, or are looking to buy them, please read this article, I hope you can help.
What is metal hydraulic hose
Metal hydraulic hoses include stainless steel metal hydraulic hoses. Metal hydraulic hose has an inner surface, connecting tube made of stainless steel raw material metal tube, divided into 201, 304 and 316. two mainly stainless steel wire surface textile layer of raw materials are different. Carbon steel raw materials for stainless steel wire, stainless steel plate raw materials for stainless steel wire. Theoretically speaking, the corrosion of carbon steel raw materials is simple, but the pressure of the raw material with stainless steel sheet is not much different. But now the quality of carbon steel raw material is very low and very little, so the price of carbon steel raw material metal hydraulic hose is relatively cheap. It is recommended to buy stainless steel sheet metal hydraulic hose. Can clearly communicate your requirements to the service provider. Both are corrugated metal hoses made of stainless steel sheet with one or two layers of stainless steel wire or banded plastic bags with connectors or flanged heads on both sides for transporting various soft parts.
Main uses of metal hydraulic hose.
Transportation of ultra-low temperature or cryogenic substances.
Transportation of water at high temperatures. Gas, oil and other substances.
Need shock absorbers or noise removal pipelines.
Transporting high temperature steam body. Rolling oil and other high-temperature substances.
Transportation of corrosive chemical plant materials. These two are mainly the surface stainless steel wire textile layer of different raw materials. Carbon steel raw materials for stainless steel wire, stainless steel sheet raw materials for stainless steel wire.
Role of metal hydraulic hose
1. Guarantee the medium. If the guaranteed medium in the hose has acidic or alkaline chemical properties and is prone to electrochemical reaction, the material of each part of the hose should be reasonably selected according to the corrosion resistance of the hose material. Metal hydraulic hose thermal contraction, external vibration and shock, alternating working conditions, regular monitoring and maintenance time is short, poor management, etc. will also affect the service life of the hose.
2. Water hammer phenomenon, water hammer phenomenon is due to the sudden change in the activity state of the medium and the change in fluid momentum in the tube caused by the pressure transient process. It is a special oscillation phenomenon caused by the unstable activity in the tube. The sharp rise and fall of the pressure wave transmitted through the pipe produces a noise similar to striking the pipe with a hammer, hence the name water hammer. As the water moves, the effect on the bending of the pipe becomes more intense. Therefore, the user should follow the requirements of the operating procedures, such as slow heating, stable pressure, reduce the instantaneous flow and pressure changes to prevent the occurrence of water hammer.
3. Corrosion, metal hydraulic hose material is generally stainless steel, the presence of reactive anions in the medium is easy to destroy the stainless steel passivation film, the base metal with small corrosion holes, is the active center of pitting corrosion generation. Etching hole in the metal surface potential is negative, etching hole outside the metal surface potential is positive, so the hole and outside the hole constitutes an active passive microelectric couple corrosion cell. The cell has a large cathode, small anode area ratio structure, anode current density is high, the etched hole deepens quickly. The strength of metal hydraulic hoses decreases after corrosion and is prone to failure when subjected to internal pressure and tensile loads. Therefore, the metal hydraulic hose used in corrosive environments should be targeted to select data, increase protection measures to improve corrosion resistance.
4. Temperature, metal hydraulic hose used at high temperatures, according to the metal hydraulic hose at high temperatures under the working pressure temperature correction factor, reduce its rated working pressure to ensure that the use of safe conditions.
5. Fatigue failure, in the dynamic working condition, metal hydraulic hose by cyclic load often fatigue cracking damage. This damage is a normal failure. In order to extend the service life, we should ensure that the hose design and selection is correct, the equipment is accurate, and the hose does not produce deformation and other additional stress.
Conclusion
The above is our introduction to the metal hydraulic hose, if you are looking for the right metal hydraulic hose or looking for the right manufacturer, you can contact us.
