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The measurement standard of reactor repair is introduced
Oct 14, 2020

1. Smooth transition between weld and base material.

 

2. The local seam bite depth shall not be greater than 0.5mm, and the bite connection length shall not be greater than 100mm.

 

3. The weld shall be free from defects such as cracks, incomplete welding, incomplete fusion, slag inclusion and pores.

 

4. The dissolved slag on the weld and splashing objects on both sides should be cleaned.

 

5. No cross weld shall appear after repair, and the longitudinal seam between the adjacent two tubes and the longitudinal seam between the head and the adjacent tube joints shall be staggered, and the spacing shall be more than three times of the simplified thickness and not less than 100mm.

 

6. Welding seam shall not be repaired more than twice.

 

7, electrode material should be selected correctly, electrode; Flux must be dried and taken as needed.

 

8. Hydraulic strength test shall be conducted on the kettle body after welding.

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