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Online repair construction method for steel-making converter by means of laser strengthening

A technology of laser strengthening and steelmaking converters, which is applied in the manufacture of converters, metal material coating processes, coatings, etc., can solve the problems of converters not working properly, poor wear resistance of repaired surfaces, gaps between support rings and furnace shells, etc. Achieve the effects of shortening the time to put into use again, prolonging the service life and convenient operation

Active Publication Date: 2019-08-23
辽宁瀛寰科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

Due to the long-term operation of the converter in the harsh working environment of high temperature and heavy load impact, over time, the joint between the support ring and the furnace shell will be severely worn and a gap will be generated, making the converter unable to work normally
The existing repair method for the joint between the support ring and the furnace shell generally adopts surfacing welding, but the repair surface formed by surfacing welding has poor wear resistance and short maintenance life

Method used

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  • Online repair construction method for steel-making converter by means of laser strengthening
  • Online repair construction method for steel-making converter by means of laser strengthening
  • Online repair construction method for steel-making converter by means of laser strengthening

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Embodiment Construction

[0032] The laser intensified on-line repair construction method of a steelmaking converter includes the following steps:

[0033] Step 1. Build working platforms 7 above the driving side and driven side trunnion 6 of the converter support ring 1 close to the junction with the furnace shell 2, open the junction of the converter support ring 1 and the furnace shell 2 and jack up the furnace The shell sets the height.

[0034] Step 2. Manually polish and derust each surface to be repaired corresponding to the junction of the separated converter support ring 1 and the furnace shell 2, and carry out surface coloring flaw detection, take pictures for recording, and calculate the repair amount.

[0035] Step 3. According to the flaw detection results, select the working face that needs to be surfacing and use the gas shielded welding machine for surfacing welding, including the lower surface 201 around the square hole of the furnace skirt plate on the driving and driven sides, the en...

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Abstract

The invention relates to an online repair construction method for a steel-making converter by means of laser strengthening. The method is technically characterized in that machine tools with functionsof rough machining, finish machining and laser cladding are installed on two working platforms on the driving and driven sides corresponding to the position of a backing ring square column respectively; the machine tools are used for conducting rough machining, laser cladding and finish machining or manual fine grinding on working faces after build-up welding one by one; and after recombination of a furnace shell and a backing ring, two upper support adjusting base plates are symmetrically inserted into the gap between two side end faces of a square hole and the square column, stop plates areinstalled above the two upper support adjusting base plates separately, and online repair installation is completed. The method significantly improves the repair accuracy and repair efficiency, and is safe and reliable.

Description

technical field [0001] The invention relates to a steelmaking converter repair technology, in particular to a laser-enhanced online repair construction method for a steelmaking converter, which is suitable for repairing the junction between a converter support ring and a furnace shell. Background technique [0002] At present, the connection method between the converter support ring and the furnace shell used in the steelmaking plant is usually to set two square columns on the upper part of the support ring at the two trunnion azimuths of the support ring, and each of the square columns has a vertical arrangement. Long hole. There are two square holes on the skirt plate at the corresponding position of the furnace shell. When installing, align the square hole of the furnace shell with the square column of the support ring, place the skirt plate of the furnace shell on the support ring, and use a wedge key to penetrate into the long hole and wedge tightly, so that the suppor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C21C5/46
CPCC21C5/46C23C24/10
Inventor 姜世伟董仁杰刘健崔忠宝
Owner 辽宁瀛寰科技有限公司
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