Automobile aluminum alloy flange tells about the passivation treatment of marine flanges?
The passivation process of marine flanges can be divided into wet and dry methods. Specifically, it can be divided into many types. Let's follow the automotive aluminum alloy flange Xiaobian to take a brief look at it!
Whether the passivation effect can be passivated depends on the surface passivation treatment process, but also depends on the material itself, the specific influencing factors are the elements contained in the marine flange, the metallographic analysis structure of stainless steel, the processing technology status of stainless steel, etc. In the composition of an element, chromium and nickel belong to the elements with strong passivation, followed by the passivation of iron, therefore, the content of chromium and nickel is getting higher and higher, and the passivation effect of stainless steel is stronger. Austenitic and ferrite type have a more uniform structure between the flanges of large equipment, and the passivability is better, and the martensitic stainless steel company is strengthened by heat measures, and its metallographic structure is a multiphase system structure, so the passivation is not strong. The passivation environment of the smooth and clean profile of the marine flange after mechanical design and processing is better, and the basic profile of different workpieces obtained by forging and sandblasting is rough and dry, and the obscurity is dull in passivation.
The material not only has a creep curve on-off, but also its affordable tube, a reliable standard hot melt connection in the form of each melt, the tube part is larger than the aperture of the inner diameter of the tube, not different from the specifications compared to other kinds of structure is convenient, fast, the stage connection type in the system belongs to the product due to the local necking of the no mechanical connection, the system will be relatively small fluid resistance. However, due to various factors, the actual wall thickness of underfloor heating pipes is usually only 2mm. And in various types of pipe wall thicknesses that can meet the requirements of floor heating, the pressure and its advantages will easily emerge.
Low temperature thermal shock resistance: PE--RT and PEX products have good low temperature impact resistance. In the winter construction, the pipe is not easy to be affected and broken, which increases the agility of the construction placement.
The above is the introduction of the automotive aluminum alloy flange Xiaobian about the marine flange, I hope it can help you.
