Melting repair method for repairing cracks of stainless steel workpiece

A stainless steel and workpiece technology, applied in the field of fusion repair for stainless steel workpiece crack repair, can solve the problems of easy deformation, falling off, cracking and other problems at the welding point

Active Publication Date: 2020-10-30
中山市方威金属科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For cracks, it is not easy for the solder to be completely introduced into the cracks, and the sealing performance of the weld with the cracks needs to be improved; in addition, the welded joints are easily deformed after welding, and problems such as falling off and cracking are prone to occur during use. Therefore, these The application of the method is very limited

Method used

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  • Melting repair method for repairing cracks of stainless steel workpiece
  • Melting repair method for repairing cracks of stainless steel workpiece
  • Melting repair method for repairing cracks of stainless steel workpiece

Examples

Experimental program
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Effect test

Embodiment 1

[0041] see figure 1 , a stainless steel workpiece crack repair method for fusion repair, the specific method steps are as follows:

[0042] S1. Clean and dry the end face of the workpiece to be repaired, remove oil and dust, chisel away the micro-cracks to form a groove repair cavity 1, and clean up the chiseled debris in the groove repair cavity 1;

[0043] S2. Put a repair reinforcement 2 in the groove repair cavity, the repair reinforcement 2 is a dendritic structure, and a plurality of meltable and burstable capsules 3 are arranged on the dendritic structure, and the plurality of meltable and burstable capsules 3 The interior is filled with stainless steel repair agent 4;

[0044] S3. A heating plate is placed on the top of the groove repair cavity 1, and the heating plate is sealed and attached to the top surface of the groove repair cavity 1 and preheated. A plurality of meltable and burstable capsules 3 are cracked and melted in a high temperature environment, and the ...

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Abstract

The invention discloses a melting repair method for repairing cracks of a stainless steel workpiece and belongs to the technical field of workpiece crack repair. The method comprises the following steps of chiseling away a crack to form a groove type repair cavity; placing a repair reinforcing part with a plurality of meltable cracking bags in the groove type repair cavity, wherein the meltable cracking bags are filled with a stainless steel repair agent; and covering the upper end surface of the groove type repair cavity hermetically by using a heating plate, wherein after heating, the meltable cracking bags in the groove type repair cavity are melted and cracked, the stainless steel repair agent in the meltable cracking bags overflow and fill the groove type repair cavity and form a groove type repair body with the repair reinforcing part, and the groove type repair body embedded with the repair reinforcing part improves the mechanical strength of the whole welding effectively. Meanwhile, by means of a hermetic welding filling method, it is favorable to join the stainless steel repair agent and the inner wall of the groove type repair cavity hermetically. The groove type repair body is unlikely to fall from a repaired part and is unlikely to deform and crack.

Description

technical field [0001] The invention relates to the technical field of workpiece crack repair, and more specifically relates to a fusion repair method for crack repair of stainless steel workpieces. Background technique [0002] Due to its good strength and superior corrosion resistance, stainless steel is widely used in automotive, energy, aerospace and other fields. Under the influence of cyclic load and working stress, stainless steel workpieces will produce microscopic defects, especially during the long-term use and processing of the workpiece, the microscopic defects on the end surface will gradually expand into macroscopic cracks. In order to ensure the safety of the workpieces in service, we have to reluctantly discard the workpieces containing tiny cracks, which increases the cost of the workpieces. [0003] The durability of stainless steel workpieces and the repair of micro-cracks have become more and more topics of great concern in the fields of machinery, mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00
CPCB23P6/00
Inventor 不公告发明人
Owner 中山市方威金属科技有限公司
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