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Briefly describe the technical requirements for parts processing and repair welding


Technical requirements for repair welding of parts:
1. According to the defects of steel castings, the defects in the repair welding zone can be removed by shovel, grinding, carbon arc gouging, gas cutting or mechanical processing.
2. The defects must be completely removed before repair welding. The groove surface should be smooth and smooth, and there should be no sharp corners.

Technical requirements for repair welding of parts:
1. The defects must be completely removed before repair welding. The groove surface should be smooth and smooth, and there should be no sharp corners.
2. The sticky sand, oil, water, rust and other dirt within 20mm of the repair welding zone and the groove must be thoroughly cleaned.
3. According to the defects of the steel castings, the defects in the repair welding zone can be removed by shovel, grinding, carbon arc gouging, gas cutting or mechanical processing.
4. In the whole process of repair welding, the temperature of the preheating zone of the steel castings shall not be lower than 350 °C.

5. When repairing the welding, the welding rod should not be subjected to excessive lateral oscillation.
6. Apply welding as much as possible to the horizontal position, if conditions permit.

7. When the surface of the steel casting is welded, the overlap between the weld beads shall not be less than 1/3 of the width of the weld bead.


DESHENGRUI Machinery is a professional CNC manufacturing and Sheet metal fabrication company, including CNC machining services, CNC Turning service, CNC milling services, CNC drilling services, laser cutting services, stamping services, Die casting service, iron casting service and Steel Forging service.

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