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English Translations » 信息处理 » Welding of the manhole end to the spherical head

Welding of the manhole end to the spherical head

2007-12-12View Original

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Our factory is currently manufacturing a high-pressure vessel. The manhole uses a Wood-type seal; the end of the manhole (with a thickness of 100 mm) is welded to the spherical head (with a thickness of 85 mm). The welding method employed is the butt weld style. Manual welding is used at first, and submerged arc welding is used after 40 mm has been welded. Preheating to 150 degrees is carried out before welding. Cracks always appear during this welding process. I would like to ask the experts how this problem can be solved

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Translated at 2026-07-28 20:19:51

Original: https://bbs.hcbbs.com/thread-120687-1-1.html

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