There are many ways to cut stainless steel pipes. Why do some pipes have a lot of burrs after cutting? The main reason is that the selected cutting machines are different, so there will be differences in cutting quality and finished products. At present, choosing laser cutting tube is the best cutting method without burrs. Our common cutting machines include grinders, circular saws, fully automatic machines, laser cutting machines, etc. However, due to the different advantages and disadvantages of each type of mechanical cutting, the most important thing is the price, so many customers will still choose the cheap cutting method, and will not regret it until they find that the cutting quality is not good. Although circular saw cutting has fewer burrs, it is more labor-intensive and the price is not cheap. Although the effect of automatic cutting machine is slightly worse than that of laser pipe cutting, and the price is also cheaper, it is not suitable for cutting some long pipes. Therefore, these cutting machines have some disadvantages. In comparison, laser cutting machines have excellent performance in all aspects, except that the price is slightly more expensive, but overall, the cost performance is higher. Of course, no...
The 304 stainless steel seamless pipe is to make the molten metal react with the iron matrix to form an alloy layer, so that the matrix and the coating are combined. Certain rules must be followed during use, and irregular operations will also lead to finished products of stainless steel welded pipes. rate drops. The protective gas is Ar gas with a purity of 99.99%. When the welding current is 50~50A, the Ar gas flow rate is 8~0L/min. When the current is 50~250A, the Ar gas flow rate of 304 stainless steel seamless pipe is 2~5L /min. Because 304 stainless steel seamless pipes are used in a wide range of industries, it is involved in many industries, so it is necessary to do a good job in its own operation and management during processing. One of the important steps is the treatment of pickling and passivation of 304 stainless steel seamless pipes. , It cannot be used directly without pickling passivation. Let’s talk about the importance of pickling passivation for 304 stainless steel seamless pipes. Stainless steel pipe manufacturers 304 stainless steel seamless pipe workpieces will form an oxide film when placed in the air, but the protection of this...
As long as it is a material, it has a service life. In the process of use, it will be directly or indirectly damaged more or less. There are many kinds of damage to materials. Among them, corrosion is the most common form of damage. The damage phenomenon caused by the chemical, electrochemical and physical effects of materials in environmental media is called corrosion, especially commonly used metal materials. Corrosion problems involve all areas of life, and corrosion problems are inevitable as long as materials are used. Corrosion will not only cause some accidents, but also bring huge economic losses. According to statistics, 10% to 20% of metals are lost due to corrosion every year. If 1 billion tons of steel are produced annually, it means that 100 million tons of steel are wasted due to corrosion. Therefore, how to prevent corrosion is an urgent problem. The most basic ways to protect against corrosion are usually the following six: (1) Improve the corrosion resistance of the material itself; (2) Change the environment: (3) Use coating and surface modification; (4) Separate the material from the corrosive medium: (5) Use electrochemical protection; (6) Correct material selection and reasonable design. Ferritic stainless steels...
In order to improve the surface quality of stainless steel pipes, that is, to reduce the energy level and reduce the number of interlayers by improving the surface morphology and morphological structure, we make stainless steel pipes that meet customer requirements. The most common surface treatment methods are as follows: AP/CP: Pickling or passivation (Pickled & Passivated/Chemically Polished) The pipes are pickled or passivated, which will not increase the surface roughness, but will remove the remaining particles on the surface and reduce the energy level, but will not reduce the number of interlayers. AP is pickling treatment, which uses acidic solutions such as nitric acid and fluorinous acid to remove the oxide layer of steel pipes. Cheap and fast, but it is easy to cause grain boundary corrosion and the inner and outer surfaces are rough and easy to have suspended impurities attached. MP: Mechanical polishing is commonly used for oxide layers, holes and scratches on the surface of steel pipes. The brightness and effect depend on the type of processing. Also after mechanical polishing. Although it is more beautiful, it will also reduce the corrosion resistance, so it needs to be passivated when used in a corrosive environment. Moreover,...
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