Production technology of cold-rolled ribbed steel bars based on CRB600H

Abstract

The invention belongs to the field of automatic production of cold-rolled ribbed steel bars, and provides a production technology of cold-rolled ribbed steel bars based on CRB600H. The production technology comprises the following steps that base metal is fed automatically; primary rolling is performed to form first ribbed steel bars; the wire outlet speed of the first ribbed steel bars is controlled; finish rolling is performed to form second ribbed steel bars; the second ribbed steel bars are straightened; the straightened second ribbed steel bars are subjected to tempering treatment; sizing is performed according to the current production requirements, and the production length of the ribbed steel bars is set; judging is performed according to the current production requirements, specifically, if the straight steel bars are produced, the straight steel bars are sheared into straight steel bar sections with preset lengths, the straight steel bar sections are overturned and then bundled, and finished products are warehoused; if wire rod steel bars are produced, the straight steel bars are subjected to wire rod coiling, after the wire rod steel bars reach the wire rod coiling length, shearing is conducted, finished products are warehoused, and the production length of the ribbed steel bars is larger than or equal to the wire rod coiling length of the wire rod steel bars. Automatic production of various types of ribbed steel bars can be completed according to the production requirements.

Description

technical field [0001] The invention relates to the field of automatic production of cold-rolled ribbed steel bars, in particular to a production process for cold-rolled ribbed steel bars based on CRB600H. Background technique [0002] At present, with the rapid development of the real estate industry, more and more construction materials are in short supply, especially ribbed steel bars, due to their strong stability, are increasingly used in various construction scenarios, such as housing, bridges etc. [0003] The standard value of tensile strength of CRB600H high ductility cold-rolled ribbed steel bar is 600Mpa; the standard value of yield strength is 520Mpa; the design value of tensile strength is 415MPA; the total elongation under maximum force (uniform elongation)≧5%. The grade of high ductility cold rolled ribbed steel bar is CRB600H. C, R, and B are the English letters of cold-rolled, ribbed, and reinforced, respectively, and H stands for high ductility. High-duc...

AI Technical Summary

Problems solved by technology

[0004] The existing production methods of cold-rolled ribbed steel bars are relatively traditional. Generally, only simple single-pass rolling is required, and human participation is still required in each production link. Not only is the production efficiency low, but accidents may also occur due to the messy production process in the production workshop.

Moreover, in order to meet the stability requirements of buildings, the performance requirements of various raw materials for various buildings using ribbed steel bars are becoming more and more refined. Obviously, the existing production methods of ribbed steel bars can no longer meet the requirements of increasingly refined Customized product requirements

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