Stainless steel pipes have low strength and hardness and are not suitable for equipment or components that bear heavier loads and have higher requirements for hardness and wear resistance. Especially under the condition that multiple factors such as corrosion, wear and external load exist at the same time, the result of the interaction will significantly accelerate the material process and shorten the service life of stainless steel pipes. The content described in “The quality of stainless steel pipes can be inspected from many aspects” was carefully prepared by our editor for everyone. Do you still remember what was said in the previous article? These may be somewhat incomplete, and we will explain them one by one in future articles. I hope that through the introduction of this article, you can have a certain understanding of the quality of stainless steel pipes, which can be inspected from many aspects. The quality of stainless steel pipes can be examined from many aspects, so when choosing a good stainless steel pipe, you must pay attention to how to distinguish the quality of stainless steel pipes. The steel strips of refining furnace stainless steel pipes are made from ores and other materials with refined...
1. Mechanical polishing method: The abrasive material and the pipe surface are ground through mechanical force to achieve the purpose of removing surface defects. Commonly used grinding tools include grinding wheels, abrasive belts, grinding cloths, etc. The advantages of mechanical polishing are high processing efficiency, low cost, and suitable for mass production. The disadvantage is that the surface is rough and prone to scratches and residues. 2. Chemical polishing method: Surface defects are repaired through chemical reactions to improve surface finish. Commonly used chemical polishing agents include nitric acid, hydrofluoric acid, phosphoric acid, etc. The advantage of the chemical polishing method is that it has good surface quality and can remove minor defects and burrs. However, the disadvantage is that it is difficult to operate, requires strict control of process parameters, and the waste liquid and waste gas generated pollute the environment to a certain extent. 3. Electrochemical polishing: Its advantages are long-lasting mirror gloss, stable process, less pollution, low cost, and good corrosion resistance. Its disadvantages are high pollution prevention, large one-time investment in processing equipment, complex parts requiring tooling and auxiliary electrodes, and mass production also requires cooling facilities. It is suitable for mass production and is mainly...
Precision stainless steel pipe is a kind of high-precision steel pipe material that has been processed by cold drawing or hot rolling. During the production process, precision pipes are not only in terms of the smoothness of the appearance, the cleanliness of the inner wall, but also the thickness and outer diameter of the precision pipe. The tolerance range is much stricter than that of ordinary stainless steel pipes. Maybe some customers require that the inner hole of precision pipes must be polished. Let me explain to you how to polish the inner hole of precision stainless steel pipes? Inner hole polishing is a professional term for mechanical processing, also called deep hole polishing. The inner hole polishing of precision stainless steel pipes is a processing method that reduces the roughness of the inner hole through mechanical, electric spark, electrochemical, plasma, honing machine polishing and other polishing methods. Use mechanical, chemical or electrochemical effects to reduce the roughness of the inner surface of the tube to obtain a bright and smooth processing method. The following introduces two polishing methods commonly used for polishing the inner hole of precision stainless steel pipes. 1. Electrochemical polishing Internal hole polishing usually uses electrochemical...
Galvanized sheet: Galvanized sheet refers to a steel sheet coated with a layer of zinc on the surface. Galvanizing is an economical and effective rust prevention method that is often used, and about half of the world’s zinc production is used for this. Stainless steel: It is the abbreviation of stainless acid-resistant steel. Steel types that are resistant to weak corrosive media such as air, steam, and water or are stainless are called stainless steel; while those that are resistant to chemical corrosive media (chemical corrosion such as acids, alkalis, and salts) are corroded. The type of steel is called acid-resistant steel. Galvanized sheet refers to a steel sheet coated with a layer of zinc on the surface. Galvanizing is an economical and effective anti-rust method that is often used. About half of the world’s zinc production is used in this process. Galvanized steel panels are coated with a layer of metallic zinc on the surface to prevent corrosion on the surface of the steel panels and extend their service life. This zinc-coated steel panel is called a galvanized panel. It can be divided into the following categories according to production and processing methods: ①Hot-dip galvanized steel plate. A thin...
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