Composite plate equipment 345R 100+3 – DN200 insert-type fitting; risks that need attention during manufacturing
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For the composite plate equipment 345R 100+3, with DN200 insert-type connections, what are the risks that need to be considered during manufacturing? Which standards should be referred to? Thank you
The standards do not provide specific guidelines regarding the manufacturing of such structures; therefore, manufacturers must develop appropriate manufacturing processes based on their experience in order to mitigate risks. Pay main attention to the following aspects: hole opening, welding groove shape, welding process, preheating and post-weld heat control, as well as post-weld heat treatment processes. The primary goal is to minimize the amount of welding work while ensuring full penetration, reduce welding defects and welding stresses, and control the heat treatment process to minimize the occurrence of reheat cracks, among other things.