Converter trunnion ring trunnion block welding process

Abstract

The invention provides a converter trunnion ring trunnion block welding process and belongs to the technical field of converter trunnion ring manufacturing methods. The converter trunnion ring trunnion block welding process is adopted for welding trunnions, inner side plates and outer side plates of a converter trunnion ring trunnion blocks. Through the converter trunnion ring trunnion block welding process, during manufacturing of the trunnion blocks, a welding-annealing-precision machining process is changed to a precision machining-welding-annealing process. During welding, a repeated turnover and alternate welding method is adopted. During annealing, a crawler heater and a heating pipe are adopted. The converter trunnion ring trunnion blocks are manufactured through the process, the manufacturing cycle can be shortened by 35 days, and the machining cost can be saved by nearly 80000 yuan. The converter trunnion ring trunnion block welding process is initiated from the converter trunnion ring trunnion block manufacturing process and breaks through the traditional technological process. A unique welding method is adopted, welding stress is effectively reduced, welding deformationis controlled, and the welding quality of the two trunnion blocks is ensured. Meanwhile, annealing of the trunnion blocks after welding can be completed without feeding the trunnion blocks into an annealing furnace. Through the converter trunnion ring trunnion block welding process, the problems of long converter trunnion ring production cycle and high manufacturing cost caused by a traditional process at present can be solved.

Description

technical field [0001] The invention relates to a welding process for a trunnion block of a converter support ring, and belongs to the technical field of manufacturing methods of a converter support ring. Background technique [0002] The converter support ring is an important part of the converter. The support ring is composed of two segments and two trunnion blocks. The segment segment is a welded structure, and the trunnion block is a forged welding structure. The segment segment and the trunnion block are welded through four interfaces. The support ring is formed by welding the upper and lower cover plates and the inner and outer plates. The difficulty in making the support ring is to ensure the coaxiality of the two trunnions, which needs to be achieved by welding. [0003] During the welding process, the welding deformation must be prevented first. Due to the limitation of the shape and size of the supporting ring, the overall processing cannot be used to ensure the ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a welding process for the trunnion block of the converter support ring. This welding process can effectively control the welding stress and welding deformation, ensure the quality of the trunnion block, and make the final size of the trunnion block after welding The tolerance of the surface of the trunnion and the trunnion meets the relevant requirements on the drawing, which solves the problems of long production cycle and high manufacturing cost of the converter support ring caused by the traditional process at present, meets the needs of the market, and improves the product competitiveness of the enterprise

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