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pipe fittings manufacturer
pipe fittings manufacturer
Categories: Fabric / Polyester Fabric
Material & Specifications: 3434
Manufacturing methods: Knit fabric
Weight(g/㎡): <80
Width(cm): 110-120
Usage: Apparel
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Tel: 86-324-3232323
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Country/Region : China Albania
Address : Xi'an,Shaanxi
Contact : Lohuizen Danilio ()
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Description
The use of stainless steel pipe or more after the use of the time is long, is the need to check this is a critical step, in order to ensure the quality of the stainless steel pipe security so it is pipe fittings manufacturer important to ensure that when testing the quality of the pipe. Under the Under the surface we simply understand the surface of the stainless steel pipe inspection method.
1, the surface of the stainless steel tube if there is stuff especially when having dust adhesion heating would, of course, affect scale.
2, if you have any cold on the surface of workpiece lubricating oil and so on, in trichloroethylene full degreasing degreasing agent, caustic soda solution and wash with warm water and then after heat treatment.
3, the differences between the stainless steel tube furnace atmosphere in furnace atmosphere at the local, the formation of scale will also have change, this is also the cause of uneven after pickling. So at the time of heating furnace in various parts of the same atmosphere.
4, the object of direct contact with the heating workpiece, been fully dry before using. But if placed at room temperature after drying, in the case of high humidity moisture will condense on the workpiece surface. So be drying before use.
Stainless steel pipe used in our life, or more, in the process of production is need to be polished, usually has the following three types of different polishing methods and their respective advantages related to operation steps are,To when selecting a polishing method and should pay attention to, then we simply understand the several different ways of polishing of stainless steel pipe.
1, mechanical polishing, the advantages of tube fitting manufacturer this approach is actually in the processed products of flatness is better, has a high brightness.
2, the chemical polishing: it has the advantage of processing equipment investment is less, production efficiency is high anticorrosion performance.
3, electrochemical polishing: it has the advantage of bright luster to keep long and stable process, less pollution, low cost, good anticorrosion.
304 stainless steel tube in the welding needs pay attention to what aspects?
1. The distinction between bottom and cladding in welding process, with their respective applicable welding materials for welding. 2. In order to ensure the corrosion resistance of coating, the coating of the weld composition should be like the cladding steel components.
3. In the two layers together, in order to avoid the cladding will be the underlying diluted, make the corrosion resistance is reduced, thus the welding of the key is to deal with two layers of border area of welding, can be in 14 tube fitting the bottom of transition layer between the coating and the weld.
4. Heat treatment after welding of large thickness of stainless steel plate welded components, heat treatment after welding can eliminate the welding residual stress.
5. Pay attention to the heat treatment at high temperature, would amount to a cable on one side of carbon steel decarburization in body, lower the progress; While at the side of the stainless steel by carburizing and hardening is crisp, the impact toughness decreases, become a welded joint in danger of failure, it is not desirable.