? Wuxi Duorunde Steel Tube Co., Ltd (My Answer); Precision seamless steel tube is a kind of steel tube processed through many procedures, with high precision, high finish, withstand high pressure and no leakage, etc. It is mainly used in the products of pneumatic or hydraulic components, such as cylinders or oil cylinders.
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? Precision seamless steel pipe is mainly made of carbon structural steel, alloy structural steel, etc. The specific standards can refer to GB/T 3639, GB/T 8713, GB/T 10882 and so on. These standards specify the dimensions, shape, weight, performance and other indicators of precision seamless steel pipe, as well as the requirements of the production process and inspection methods, etc.?
In the production process of precision seamless steel tube, size control is a very important part. The following methods are generally used for control:
1. Adjustment of mill parameters: the rolling process of precision seamless steel tube needs to go through several processes, and each process needs to accurately control the parameters of the mill, such as rolling speed, temperature, pressure, etc., in order to ensure that the dimensional accuracy of the steel tube and surface quality.
2. Adoption of high-precision measuring instruments: In the production process, it is necessary to adopt high-precision measuring instruments to monitor and adjust the size of the steel pipe in real time to ensure that the dimensional accuracy of the product meets the requirements.
3. Control the heat treatment process: heat treatment is an important part of the production process of precision seamless steel tube, which directly affects the dimensional accuracy and mechanical properties of the steel tube. Therefore, it is necessary to accurately control the heating temperature, holding time and cooling speed and other parameters in the heat treatment process to ensure the quality and performance of the product.
4. Conducting finishing and straightening: In the production process of precision seamless steel tube, it is necessary to carry out finishing and straightening to eliminate stress deformation and shape defects, and to ensure that the product's shape and dimensional accuracy meet the requirements.? In summary, the dimensional control of precision seamless steel tube needs to start from many aspects, using advanced equipment and technical means, and strictly controlling each link in the production process, in order to ensure that the dimensional accuracy and quality of the product reaches the best level.