Method for bead welding repair of high manganese steel cast steel frog and steel rail

A technology of cast steel frog and repair method, applied to rails, rails, welding medium and other directions, can solve the problems of complex repair process and low efficiency, and achieve the effect of simple welding repair process, high efficiency, stable and reliable performance

Inactive Publication Date: 2014-05-14
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem of complex repair process and low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Carry out welding repair for a high manganese steel cast steel frog plan with defects such as abrasion, cracks, falling blocks and crushing on the surface in online use.

[0034] 1. First of all, the quality of the damaged part should be judged:

[0035] 1) There is no fracture in any part of the high manganese steel cast steel frog.

[0036] 2) Confirm the damage degree of the high manganese steel cast steel frog and rail:

[0037] The high manganese steel cast steel frog has defects such as surface wear, cracks, falling blocks and crushing. After grinding, it will not affect the driving. It can be repaired online by using the time between driving. The parts that need to be welded have not been repaired.

[0038] 2. Perform pre-weld processing on the repaired surface of the damaged part of the high manganese steel cast steel frog:

[0039] 1) Clean up the oil, dirt and rust on the damaged part of the high manganese steel cast steel frog, carefully check out the type ...

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Abstract

The invention discloses a method for bead welding repair of a high manganese steel cast steel frog and steel rail, and belongs to the technical field of welding. The method for bead welding repair of the high manganese steel cast steel frog and steel rail comprises the specific steps that quality judgment is carried out on the damaged portion of the high manganese steel cast steel frog and steel rail, machining before welding is carried out on the damaged portion of the high manganese steel cast steel frog and steel rail, over bead welding repair is carried out on the damaged portion of the high manganese steel cast steel frog and steel rail, polishing and forming are carried out on the high manganese steel cast steel frog and steel rail processed through bead welding repair, and quality inspection is carried out. The method for bead welding repair of the high manganese steel cast steel frog and steel rail has the advantages that preheating does not need to be carried out on the high manganese steel cast steel frog and steel rail before repair is carried out, heat treatment does not need to be carried out after welding is accomplished, implementation of the welding repair technology is easy, the cost is low, efficiency is high, labor intensity is low, quality is high after welding repair is accomplished, and performance is stable and reliable.

Description

technical field [0001] The invention belongs to the field of welding technology, in particular to a high manganese steel cast steel frog and a rail surfacing repair method. In particular, a self-shielded welding repair method is used to repair high manganese steel cast steel frogs and rails by using manganese-chromium-nickel flux-cored welding wire. Background technique [0002] The turnout is an important part of the railway line. The frog made of high manganese steel is also a key component of the turnout. Due to the harmful space in it, it is easy to wear and tear under the rolling and impact of the train wheels. , when the frog wears to a certain limit, it is very unfavorable to driving safety and must be replaced and repaired in time. In the past, the iron arc welding welding repair process was generally used for railway cast steel frogs, which requires high technical quality of workers, and the welding process is complicated. The repair process requires hoisting, tran...

Claims

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Application Information

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IPC IPC(8): B23K9/04B23K9/235B23P6/00B23K35/30
CPCB23P6/00B23K9/04B23K9/235B23K33/00B23K35/3053B23K2101/26
Inventor 刘宏牟淑坤张飞虎章军陈延清齐建郭占山董现春鞠建斌张熹张楠
Owner SHOUGANG CORPORATION
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