Split support ring and manufacturing method thereof

Abstract

The invention discloses a split-type trunnion ring and a manufacturing method thereof. The manufacturing method comprises the following steps that 11, the positions of the butt-joint faces of two trunnion blocks and two fan-shaped bodies are controlled according to discharging of a trunnion ring annular body formed by the trunnion blocks and the fan-shaped bodies, wherein the positions of the butt-joint faces correspond to those of vertical rib plates arranged in inner cavities of the trunnion blocks; 12, lower cover plates of the trunnion blocks and lower cover plates of the fan-shaped bodies are welded, inner side plates of the trunnion blocks and inner web plates of the fan-shaped bodies are welded, outer side plates of the trunnion blocks and outer web plates of the fan-shaped bodies are welded, and then an annular welding structure is formed; 13, stress annealing treatment is conducted on the annular welding structure; 14, trunnion holes are formed in the trunnion blocks; 15, trunnions are installed in the trunnion holes, and local stress annealing treatment is conducted on the welding joints of the trunnions and the trunnion holes; 16, upper cover plates of the trunnion blocks are welded, the upper cover plates of the trunnion blocks and upper cover plates of the fan-shaped bodies are welded to the butt-joint faces, and the trunnion ring is obtained. According to the scheme, the problems that in production of an existing split-type trunnion ring, the machining efficiency and the quality are low, and the cost is high can be solved.

Description

technical field [0001] The invention relates to the technical field of converter parts processing, in particular to a split support ring and a manufacturing method thereof. Background technique [0002] The supporting ring is an important part of the converter, which is used to support the furnace body of the converter to realize its rotation, and then realize steelmaking. The volume and weight of the support ring are relatively large, and there is a problem of difficulty in transportation. In order to facilitate transportation and arrange and install the argon blowing pipe and cooling water pipe in the converter, the support ring is usually designed and manufactured in blocks, such as figure 1 As shown, the support ring is generally divided into the following four parts: two trunnion blocks (namely, the driving end trunnion block 01, the floating end trunnion block 02) and two sectors (namely, the feeding side sector 03 and the tapping side Sector 04), the drive end trunn...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention discloses a manufacturing method of a split support ring to solve the problems of low processing efficiency, low quality and high cost in the production process of the split support ring at present.

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