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Analysis of Key Processing Techniques for Stainless Tube Pipe

Cutting of stainless tube pipe

During the process of cutting capillaries stainless steel tubes, specialized cutting machinery for stainless steel should be used as much as possible according to the actual processing situation, and the use of plasma or flame cutting methods to cut stainless steel should be avoided as much as possible. In addition, carbon steel materials should not be used as supports for the cut stainless steel.

Straightening of stainless tube pipe

During the process of straightening stainless tube pipes, strict requirements should be made for the environment of straightening, and straightening must be carried out on specific platforms for stainless tube pipes. It should be noted that during the production process of stainless tube pipes, contact with carbon steel materials should be avoided. This is mainly because once the iron powder in carbon steel comes into contact with stainless steel, stainless steel pollution will occur, resulting in different degrees of corrosion.

Connection of pipes with valves and other equipment

In the stainless tube pipeline system, butterfly valves are generally used for mutual connection of pipes. Although butterfly valves are relatively compact in structure and have a beautiful appearance when connected, their strength is not very high. Therefore, when straightening stainless steel, special attention should be paid to the distance between the flanges of the pipes, in order to avoid excessive stress on the stainless tube pipes during use, causing the butterfly valve to rupture or stress corrosion. When repairing a local area of a stainless tube pipe, if disassembly and assembly are difficult due to the rigidity of the pipe, the disassembly and assembly range of the stainless tube pipe should be expanded to avoid improper connection of the stainless tube pipe. In the process of outdoor welding, flanges should be used for connections as much as possible.

Using flanges for connection can effectively avoid the problem that the inside of the stainless tube pipe cannot be pickled after butt welding. In addition, it is worth noting that ordinary wrenches can be used to tighten the stainless tube pipes, but direct collision between the wrench and the pipes should be avoided to prevent scratches and corrosion.

Surface treatment of stainless tube pipe

During the passivation treatment of China precision steel pipe, in addition to passivating the surface and inside of the pipes, each weld seam of the pipes also needs to be strictly passivated. Generally, the inner field that processes stainless tube pipes cannot carry out the passivation treatment of pipes by itself and needs to be sent to a specialized manufacturer for passivation.

Requirements for the processing area of stainless tube pipe

Whether in the process of processing or storage, the requirement for the environment of stainless tube pipes is relatively high, mainly to prevent contamination and corrosion of the pipes. Therefore, appropriate protective measures should be taken in the production process of stainless tube pipes. During the transportation of stainless tube pipes, lifting tools that can be covered should be used. Whether it is iron wire or clamp, they should not come into direct contact with stainless steel during transportation to prevent iron contamination and corrosion. When using stainless tube pipes, they should be taken directly from the basket as much as possible, and not placed on the ground if possible. If the pipes must be placed on the ground, non-metallic isolation materials need to be laid on the ground. During storage, stainless tube pipes should be placed in a separate storage area as much as possible, and mixed storage with other metal materials should be prohibited to prevent contamination of the stainless tube pipes. During storage, if pollutants are found on the surface of the pipes, they must be cleaned in a timely manner, and the storage environment must be kept clean and dry.

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