When water-soluble paper is used to block the ventilation, due to the ventilation from the center of the weld, the ventilation pipe shall be pulled out quickly in the later sealing link, and the residual argon inside shall be used for protection, so as to quickly finish the bottom and seal the mouth.Ability. After the passivation film, the corrosion resistance decreases.San Francisco,The back side is not protected by argon. Flux coated welding wire (self protective flux cored welding wire) + TIG process stainless steel backing welding wire + TIG process is adopted. The protection mechanism of the back weld is to protect the back weld by the metallurgical reaction of the slag produced by the melting of the welding wire and its alloy elements. The front weld depends on argonAlthough the stainless steel plate is corrosion-resistant, it does not mean that the stainless steel will not be corroded. If the stainless steel plate is used and maintained improperly or the use environment is too bad, local oxidation corrosion will also occur.Bolzano,The surface quality of the product polished by the polishing machine meets the design requirements, and can be applied to the surface treatment of precision tubes in aerospace, aviation medicine, military industry and other fields. Aiming at the defect characteristics of stainless steel pipe blank,San Francisco434 stainless steel sheet, such as insufficient cleanliness, skin rolling surface crack and so onThe electroless plating Pd film with uniform film and good adhesion was obtained by electroless plating PD process. The surface morphology and composition of electroless plated Pd film on L stainless steel were characterized by electron scanning microscope (SEM), energy dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). immersion test Significant. As for the combined welding of steel pipe with high-frequency preheating, the welding operation is complex, and the whole welding is fragmented and easy to complete automation. This combination is easy to connect with the existing high-frequency welding equipment, with low investment cost and good benefit.

As we all know, stainless steel pipe has strong atmospheric oxidation ability and is not easy to rust under normal circumstances; stainless steel pipe & rdquo; Hence the name of. But what I want to tell you today is that stainless steel pipe will also rust. I believe many friends will be surprisedAfter pre-treatment screen printing, graphic etching, chemical coloring and other processes post-treatment, stainless steel coloring not only gives various colors to stainless steel products and increases the variety of designs and colors of products, making graphics and texts clear, three-dimensional and good decorative performance, but also improves the quality of productsWhen using this kind of paper, it should be noted that the water-soluble paper should be double-layer and must be pasted well, noTotal quality assurance,At low temperature, ferritic stainless steel pipe has low-temperature brittleness like carbon steel, while austenitic steel does not. Therefore, ferritic or martensitic stainless steel produces low-temperature embrittlement, while austenitic stainless steel or nickel base alloy does not show low-temperature embrittlement. Of ferritic stainless steel pipe（Electroplating is used to ensure the surface of carbon steel, but as people know, this protection is only a thin film. If the protective layer is, the steel below begins to rust.In general, a protective film will be attached to the surface of the stainless steel plate to ensure the gloss of the surface and prevent scratches. It can also effectively prevent scratching during transportation. The outer protective film is also a very important point. If the protective film with poor quality is placed for a long time, the protective film will be damaged

After fine tuning the molten steel temperature in the argon blowing station, it is lifted to the Ladle Turntable for continuous casting.production,High temperature resistant stainless steel pipe has excellent corrosion resistance. In order to alleviate the high-temperature alkaline environmental corrosion on the flue gas side of biomass power plant boiler, high-temperature coupon test (including high-temperature oxidation test and high-temperature KCl steam corrosion test) is used to detect and draw the corrosion of four new stainless steel materials independently developed in ChinaThe composition (chromium,San Francisco409 stainless steel plate, nickel, titanium, silicon, aluminum, etc.) and the internal structure of stainless steel coil plate are mainly used for chromium. Chromium has high chemical stability. It can form a passive film on the steel surface,San FranciscoXm21 stainless steel, isolate the metal from the outside, protect the steel plate from oxidation and increase the corrosion resistance of the steel plateFlame mouth. L is a type of stainless steel pipe, and its current use value and market demand are also very large. For example, people who often pay attention to the price of stainless steel pipe will find that the price of stainless steel pipe fluctuates greatly, sometimes rising to an exaggerated degree, and sometimes falling to an exaggerated levelSan Francisco,Small, if you need to know the specific value, you can search the table on the Internet.According to the purpose, it can be divided into oil well pipe (casing, oil pipe and drill pipe), pipeline pipe, mechanical structure pipe, hydraulic prop pipe, gas cylinder pipe, geological pipe, chemical pipe (high-pressure chemical fertilizer pipe, petroleum cracking pipe) and marine pipe.Heat treatment of stainless steel plate if there is residual oxide scale on the part of stainless steel plate before heat treatment, there is difference between the oxide scale directly on the stainless steel surface and the place where there is no gas or oil flame. Therefore, when heating, it is necessary to make the processing part not directly