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LPG storage tank heat treatment welding review

Content

The head of a liquefied gas storage tank is spliced and formed by hot pressing. There is no heat treatment weld evaluation at the transition temperature. According to JB4708, the hot-pressed head has undergone heat treatment at an upper transformation temperature, and the main variables have changed. There should be a heat treatment welding review for the upper transition temperature. The welding of the floating head flange and the head of a heat exchanger should be heat treated according to the rules, because the thickness of the plates varies greatly,

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