Welding method of the pressure vessel repair or technological innovation, and shall comply with the following requirements:
A. Pressure vessel welding, Patching, the replacement of the tube section and theheat treatment and other technical requirements, should refer to the specification ofthe corresponding manufacturing technology, the development of the constructionprogram and meet the quality requirements, the welding process should be agreed toby the person in charge of review of the welding technology.
Two. Removed, the defect should be generally 20d2 surface inspection to confirm thedefect has been completely eliminated. After completion of welding work to donondestructive testing, to confirm the repair parts meet quality requirements.
3. Base metal surfacing repair parts must be polished. The length of the repair welddefects cleared should not be less than 100mm.
4. The pressure vessel heat treatment requirements, and should re-do the heat treatment in repair welding.
5 Pressure parts shall not be used to supplement the repair.
More Information at Weihai Huanyu Chemical Machinery Pressure Vessel
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