Cangzhou Junde Steel Pipe Co.,Ltd
Add: South of Qiantong Road, Cangzhou City, Hebei, China
Contact us:Sunny Yang
In a lot of seamless steel pipe factory which is mainly cold drawn and hot-rolled seamless steel pipe as the center of production and sales, while the two production process is different. So in these two seamless steel pipe production process inside, or cold drawn seamless steel pipe production process is more complex. Cold drawn seamless steel pipe first in the tube problem is necessary to carry out continuous rolling, rolling after the sizing test, this time the surface of the tube without any crack response before the next process can be carried out.
Then the response to the crack after the cut, cutting the length of about one meter in the cut after the completion of the annealing process will be completed. In the annealing time, there is a key is to carry out pickling, then pickling in the time, the workers should pay attention to their own security issues. In the acid pickling time, pay attention to the surface of the pipe blistering, if the bubble from too much, then it shows that the quality of the pipe can not meet the requirements. Compared to hot rolling is much simpler, it is only in the hot state of the heat treatment can be carried out, so the process is much simpler.
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