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针对 SA2 1 3—TP3 0 4H奥氏体耐热钢容易产生焊接热裂纹及其焊接接头耐蚀性的特点 ,分析了 SA2 1 3—TP3 0 4H奥氏体耐热钢容易产生焊热裂纹、晶间腐蚀及应力腐蚀开裂的原因 ,制订了射线探伤(主要检查焊接接头内部缺陷 ) +渗透探伤 (检查焊接接头及近焊接接头区裂纹 )的无损检测工艺 ,并付诸于实施 ,取得了良好的效果 ,防止了裂纹等危害性缺陷的漏检 ,确保了热段再热器 SA2 1 3— TP3 0 4H奥氏体耐热钢焊接接头的焊接质量
In view of the characteristic of easy welding hot crack and corrosion resistance of SA2 1 3-TP3 0 4H austenitic heat-resistant steel, the SA2 1 3-TP3 0 4H austenitic heat-resistant steel is easy to produce welding hot crack, Intergranular corrosion and stress corrosion cracking, developed a non-destructive testing technology of ray inspection (the main inspection of the internal defects of welded joints) + penetrant inspection (inspection of welded joints and cracks near welded joints), and put into practice, achieved good Of the effect to prevent the crack and other harmful defects of the missing inspection to ensure that the hot section reheater SA2 1 3- TP3 0 4H austenitic heat-resistant steel welded joints welding quality