A high hydrogen content in weld produces hydrogen embrittlement, welding cold cracks, and even blowholes,which seriously affect joint performance and welding quality. Submerged-arc-welding flux has a great influence o...A high hydrogen content in weld produces hydrogen embrittlement, welding cold cracks, and even blowholes,which seriously affect joint performance and welding quality. Submerged-arc-welding flux has a great influence on the hydrogen content of the final weld. To simulate different flux storage circumstances and pre- welding treatments,the effects of different welding-flux states on the welding quality and hydrogen content in weld were compared, using moisture content determination test and hydrogen content in deposited metal determination test. The test results reveal that to ensure the quality of welding, it is necessary to strictly control the storage of welding flux and procedures followed when using it.展开更多
文摘A high hydrogen content in weld produces hydrogen embrittlement, welding cold cracks, and even blowholes,which seriously affect joint performance and welding quality. Submerged-arc-welding flux has a great influence on the hydrogen content of the final weld. To simulate different flux storage circumstances and pre- welding treatments,the effects of different welding-flux states on the welding quality and hydrogen content in weld were compared, using moisture content determination test and hydrogen content in deposited metal determination test. The test results reveal that to ensure the quality of welding, it is necessary to strictly control the storage of welding flux and procedures followed when using it.