Plasma composite surfacing process

A plasma welding and plasma technology, applied in the field of ion surfacing, can solve the problems of difficulty in crack repair, detachment of the surfacing layer and the base material, cracks, etc., so as to enhance the surfacing effect and reduce the generation of cracks.

Pending Publication Date: 2021-11-26
郑州雷姆自动化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: the plasma surfacing welding of the Stellite (Stellite) series alloy of the carbon steel gate of the valve has the risk of falling

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 2:

[0023] After the plasma welding torch along the solder welding direction;

[0024] The step further includes S6, and the argon arc welding torch begins performing a starting point position of the remelten. When the argon arc welding torch moves the stack of argon arc torches with a plasma welding gun, the argon arc welding gun is automatically activated, and the argon arc welding gun will be remelted to the completed surfacing surface and complete the composite stack of the workpiece. weld.

[0025] The main role of the rear argon arc welding torch is the remelting of the heap solder. The argon arc melting can provide post-heat treatment of hydrogen-free hydrogen in the surfacing layer, effectively reducing the depot stress, improving the surface of the weld seam, promoting the overflow of hydrogen in the workpiece, eliminating the surfacing layer gas hole.

[0026] The spacing between the front argon arc welding torch, the rear argon arc welding gun and the pl...

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PUM

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Abstract

The invention relates to a plasma composite surfacing process, which comprises the following steps: S1, cleaning a workpiece; S2, surfacing preparation; S3, surfacing position confirmation; S4, carrying out surfacing work; and S5, composite surfacing. The plasma composite surfacing process provided by the invention has the advantage of improving the plasma welding surfacing effect.

Description

technical field [0001] The present application relates to the field of plasma surfacing technology, in particular to a plasma composite surfacing process. Background technique [0002] Plasma surfacing is the use of ionized plasma arc to melt the base material and welding powder and form them in solid state on the surface of the base material. Its main disadvantage is that the bonding force between the surfacing layer and the base material is weak, especially the surfacing of alloys with large differences in physical properties. For example: the plasma surfacing welding of the Stellite (Stellite) series alloy of the carbon steel gate of the valve has the risk of falling off due to the weak combination of the surfacing layer and the base material. The generation of cracks, and the repair of cracks is difficult. Contents of the invention [0003] In order to overcome the above technical problems, the present application provides a plasma composite surfacing process. [00...

Claims

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Application Information

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IPC IPC(8): B23K10/02
CPCB23K10/02
Inventor 王晓东李明飞张富贵李明辉
Owner 郑州雷姆自动化科技有限公司
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