GB/T 22652-2019
ActiveOverlaying-welding procedure qualification for valves sealing face
阀门密封面堆焊工艺评定
Application Summary AI generated
This standard specifies the qualification requirements for overlaying-welding procedures used to deposit hardfacing alloys on valve sealing faces. It is applied in the manufacturing and repair of industrial valves, particularly for critical applications in the petroleum, chemical, and power generation industries where leak-tight sealing is essential. The standard ensures that the welding process produces consistent, defect-free sealing surfaces that meet specified hardness, corrosion resistance, and mechanical performance criteria.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.