Steel products are widely concerned in today’s social development, it is worthly of the trust of many enterprises, miner steel is one of the more typical steel products, how to control stress in the production process of miners?

In the case of miners’ steel, the control value shall be determined by the test, that is, the test pieces of the same batch in the same furnace, in the case of not less than 4, each test piece shall be measured according to the stress of the miner steel specified in the specification, the cold drawn square steel rate, and the average value of the test piece is taken as the actual cold drawn square steel rate of the batch of steel bars of the furnace. In the face of different batches of miner steel, it is required that each miner’s steel rate and control stress should meet the specifications.

There are two main control methods involved, namely single control and double control, the former is relatively simple, but for the steel with uneven material, it is impossible to test the quality of the cold drawn steel; the latter can avoid the above problems, the speed control is also very important, generally 0.5~1.0 is appropriate. At the same time, the miner steel is required to stop after the specified stress and miner steel rate, and then relax after 2~3 to obtain sufficient deformation time.

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