摘要
分析了杯形阀阀盖十字形和T字形(I形坡口)焊接接头产生热裂纹的原因,制订了工艺改进方案,通过相关的试验验证,确定了防止热应力产生的有效措施。
The paper analyses the cause for thermal cracks produced m cross and T - shaped （I - shaped groove） welding joints of Cup -type valve bonnet, and formulates the process improvement plan, through the relevant tests, determines the effective measures to prevent the thermal stress. Key
出处
《阀门》
2015年第2期25-28,共4页
VALVE MAGAZINE
关键词
杯形阀
阀盖
十字形和T字形焊接接头
焊接应力
热裂纹
cup - type valves
bonnet
cross and T - shaped welding joints
welding stress
thermal cracks
preventive measures
