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The problem of 2205 stainless steel seamless pipe

Jan 02, 2020

After the 1.2205 seamless stainless steel pipe undergoes a low temperature, high temperature finish, welded stainless steel pipes may have weld defects and mechanical damage. Depending on specific conditions, the machine should be repaired when necessary. If the tube is rusty or stained, perform certain pickling and passivating steps. However, if only pickling passivation is performed on the weld, the surface will be uneven and the aesthetics will be affected.

2. Pickling passivation treatment is carried out after manual polishing and polishing. It is difficult to achieve a uniform treatment effect for a workpiece with a larger area and an ideal uniform surface cannot be obtained. And the cost of working hours and auxiliary materials are also higher. Therefore, after finishing these surface treatments, in order to clarify the overall brightness of the seamless stainless steel pipe, so that it can better meet the general needs of normal use and decoration, the polishing technology can be selected appropriately.

3. The second is to remove rust on the surface of the stainless steel pipe and the hidden danger of corrosion. The alternative hot and cold processing of the stainless steel tube can promote stainless steel material for better corrosion resistance and resistance. However, such processed stainless steel pipe materials are prone to pores, cracks, slag inclusions, etc. during welding. Some corrosive environments are prone to corrosion of stainless steel pipes. In this case, it is necessary to adopt the corresponding mechanical treatment and chemical action to improve the corrosivity of the stainless steel pipe, in order to extend the service time of the stainless steel pipe.

4. When processing 2205 seamless stainless steel tubes, due to its unique hardness, the tool wears out quickly and it is difficult to remove chips; When processing stainless steel tubes, use tools with higher thermal conductivity; and stainless steel tools must be well equipped The toughness and high strength of the cutting edge and the bonding force of the coating film. Using sharp cutting edges and a wider chip-breaking edge area can reduce cutting pressure and control chip removal during machining;

5. Due to the low thermal conductivity generated during the processing of stainless steel pipes, it is easy to cause plastic deformation of the cutting edge and accelerate the degree of tool wear; appropriate processing conditions must be selected to maintain tool life. .