We all know that cold-drawn wire is actually a kind of iron wire. It is mainly produced by a series of processes such as peeling of reinforcing steel bars. It is mainly a metal cold processing process. Due to the high strength of cold drawn wire, it is more commonly used in construction and can strengthen the quality of the building. In the process of producing cold drawn wire, the following points should be noted. The following is introduced by Yan Xinsenyu, a cold drawn wire manufacturer.
1. Cold-drawn wire cold-drawing stress control: According to the different types of steel bars, after the cold-drawing process, if it is used as prestressed steel bars, cold-drawing stress control must be performed. If the maximum cold-drawing rate exceeds the specified value , Then a certain amount of mechanical energy experiments must be performed.
2. Cold drawing wire cold drawing rate measurement control: If it is to control the cold drawing of the steel bar with the cold drawing rate, its control value should be determined by relevant experimental values. The test measurement requires that there are not less than 4 test specimens in each batch, and each test specimen must be subjected to a corresponding cold-drawing stress test to determine its cold-drawing rate, and the average value of the test pieces is finally taken as the The actual cold drawing rate of the batch of steel bars. In addition, if the strength of the reinforcing bar is too high, when the average cold-drawing rate is less than 1%, when the steel bar is cold-drawn, the cold-drawing rate of 1% should still be controlled.
3. Cold drawing wire cold drawing speed control: In the process of cold drawing, if we want to fully deform the steel bar, we must control the cold drawing speed, generally 0.5-1.0 is appropriate. And after cold drawing to the specified stress and cold drawing rate, the drawing should be stopped immediately, and the reinforcing bars should be loosened to give the bars sufficient time to deform.
