Manufacturing method of roller table frame blank in continuous rolling production line

Abstract

The invention provides a manufacturing method of a continuous rolling production line roller bed blank. The manufacturing method comprises the following technological characteristics that (1) thick plate components of a roller bed are discharged in an embedded nesting discharge manner; (2) after bottom plates of a transmission side roller bed and an operation side roller bed are fixed back to back, assembly and welding of components are carried out, symmetrical weld seams of the transmission side roller bed and the operation side roller bed are welded at the same time during assembly and welding, and construction is carried out from the two end parts of the two roller beds to the middle parts; and (3) after assembly and welding of the transmission side roller bed and the operation side roller bed, integral annealing is carried out. According to the manufacturing method of the continuous rolling production line roller bed blank, deformation of the roller bed blank can be effectively reduced or avoided, the utilization rate of raw materials can be greatly increased, and manufacturing cost of a continuous rolling mill roller bed blank is reduced.

Description

technical field [0001] The invention belongs to the technical field of metallurgical machinery, and relates to a method for manufacturing a roller table blank of a continuous rolling production line. Background technique [0002] In major iron and steel plants across the country, the roller table frame structure of the roller table equipment in the continuous rolling production line is roughly the same, which is assembled and welded by thick plates, vertical plates, bottom plates and rib plates. The rough production method is as follows: according to the drawings, the steel plate blanks of each component are made, the rivet welder combines them, welds them, performs stress relief annealing after welding, checks the dimensions, and corrects to eliminate or reduce the deformation of the blanks. This production method has obvious disadvantages. The single piece of thick plate is cut and blanked by CNC machine tool, the material utilization rate is low, the manufacturing cost is...

AI Technical Summary

Problems solved by technology

This production method has obvious disadvantages. The single piece of thick plate is cut and blanked by CNC machine tool, the material utilization rate is low, the manufacturing cost is high, and the product profit is very low; on the other hand, after the thick plate is cut and blanked by CNC machine tool In the process of welding with the vertical plate, as well as the welding process of the vertical plate and the bottom plate, due to the welding stress, a large bending deformation will occur after the blank is manufactured, and after being transferred to the machining process, it will cause uneven machining allowance, which is easy As a result, part of the processed surface cannot be processed, so it can only be repaired or scrapped

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