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Chrome-reinforced metal hose joints for corrosion resistance - focus on microfluidic control technology
Metal hoses are widely used in various fields due to their excellent temperature resistance and corrosion resistance, and the metal hose joints that are used for jointing are also widely used in various working environments, and the product form of metal hose joints. It is also diverse and comprehensive in specifications, novel in construction, strong in connection and good in sealing. Some products can replace imported products. Its application fields are also very extensive, such as in aviation, chemical, electric power, machinery, medicine and other automation control equipment can be seen. Metal hose joints mainly include threaded connections, flanged connections, and quick joint connections. Because it can work in high altitude, high humidity and heat environment, it is used and appreciated by many users.
However, since the metal hose joint is a metal product, it is inevitable that it will be corroded. Once the joint is corroded, the sealing effect and the safety of the protective medium will be greatly reduced, and the service life will be affected. How to avoid this problem? It is necessary to understand the corrosion resistance of metal hose joints related to those factors? The following high-tech rubber and plastics for everyone to unveil this veil.
In the production of joints of metal hoses, the strength of corrosion resistance depends to a large extent on the content of rare elements such as chromium, so whether or not to add more chromium in the production can make the joints more Corrosion resistant? In fact, when the content of chromium in the joint reaches 10.5%, the steel will have a significant improvement in atmospheric corrosion resistance, but if the content of chromium is continuously added, it will not increase the corrosion resistance of the steel again. Maintain performance at a 10.5% level.
The reason for this is that Gaoke Rubber & Plastics Co., Ltd. found that when chromium is blended with steel, the type of oxide on the steel surface changes, similar to that formed when pure chromium metal is oxidized in air. Oxide. This oxide protects the steel, which is rich in chromium and adheres to the steel to prevent further oxidation.
This oxide layer is extremely thin, through which you can see the natural luster of the stainless steel surface, giving the stainless steel a unique surface. Moreover, if the surface layer is damaged, the exposed steel surface reacts with the atmosphere to repair itself, re-forming this "passivation film" and continuing to protect.
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