问题:管壳式换热器管程或壳程的介质进口处,什么情况下应设置防冲板?...
Sunday, August 17, 2025
Sunday, November 24, 2024
Friday, July 11, 2025
Wednesday, July 9, 2025
问题:GB150标准壁厚计算公式的焊缝系数ψ,指的是容器上哪类焊缝的焊缝系数?为什么?...
Sunday, August 17, 2025
Sunday, November 24, 2024
Sunday, August 17, 2025
问题:JB/T4731钢制卧式容器适用及不适用的范围各是什么?...
Wednesday, July 9, 2025
Friday, July 11, 2025
问题:新容规对GB151《管壳式换热器》有哪些影响(写出三到五条)?...
Friday, August 1, 2025
问题:何谓奥氏体不锈钢晶间腐蚀?对晶间腐蚀有要求时,热加工后应进行什么热处理?...
Wednesday, July 9, 2025
Friday, August 1, 2025
Tuesday, December 3, 2024
问题:圆平板在周边均布弯矩作用下,板中的应力有什么特点?...
Tuesday, September 24, 2024
Sunday, August 17, 2025
问题:JB/T4731钢制卧式容器适用及不适用的范围各是什么?...
Wednesday, July 9, 2025
Wednesday, July 9, 2025
Friday, July 11, 2025