Processing technology of cold-rolled steel bar

Abstract

The invention discloses a processing technology of a cold-rolled steel bar. The processing technology comprises the steps that 1) a hot-rolled wire rod is fed into a rolling mill unit to be subjected to reducing cold rolling to form rib patterns; 2) the hot-rolled wire rod after the cold rolling in the step 1) is subjected to heat treatment; and 3) the hot-rolled wire rod after the heat treatment in the step 2) is straightened, and then is subjected to length-given cutting and collected. The processing technology of the cold-rolled steel bar takes the hot-rolled wire rod as the raw material for production, a cold-rolled ribbed steel bar is formed through repeated cold rolling reducing and one-time rib pressing on the hot-rolled wire rod, and the internal stress generated in a cold rolling process is eliminated through the heat treatment on the cold-rolled ribbed steel bar, so that the elongation percentage and tensile strength of the finished cold-rolled steel bar are increased and improved. Compared with the production technology taking steel blanks as the raw material in the prior art, the processing technology is simplified from the source, the production cycle can be shortened effectively, the production cost can be lowered, the hot-rolled wire rods of different diameters can be adopted for production according to the requirements of customers, and the production can be carried out quickly and flexibly to meet different requirements of the customers.

Description

technical field [0001] The invention relates to the technical field of steel rolling equipment, in particular to a process for processing cold-rolled steel bars. Background technique [0002] Because of its high strength, good plasticity, easy processing, and strong binding force with cement, cold-rolled ribbed steel can save a lot of steel, so it has rapidly developed into an important construction steel since the late 20th century. [0003] In the prior art, the production process of cold-rolled ribbed steel bars needs to start from the steel billet until the final output of formed cold-rolled ribbed steel bars. Flexibly adapt to various needs of customers. [0004] Therefore, how to provide a cold-rolled steel bar processing technology to simplify operation, shorten production cycle, reduce production cost and meet various needs of customers has become an important technical problem to be solved urgently by those skilled in the art. Contents of the invention [0005] ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the production process of cold-rolled ribbed steel bars needs to start from the steel billet until the final output of formed cold-rolled ribbed steel bars. Flexible adaptation to various needs of customers

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