Carbon dioxide gas shielded welding process 2/3
Carbon dioxide gas shielded welding Weld symbol representation method
Carbon dioxide gas shielded welding Basic symbols
The basic symbol is the symbol that represents the shape of the transverse section of the weld, and it adopts the symbol that is approximate to the shape of the transverse section of the weld :
Carbon dioxide gas shielded welding Auxiliary symbols
Auxiliary symbol is a symbol indicating the auxiliary requirements of the weld：
Carbon dioxide gas shielded welding lead
The lead line is generally composed of guide lines and horizontal lines. The guide line shall point to the relevant weld, the horizontal line shall be parallel to the main title bar, and the weld symbol shall be marked on the horizontal line. If necessary, a tail can be added to the end of the horizontal line for other purposes
Carbon dioxide gas shielded welding Weld dimension symbol and marking
Weld dimension symbols and their marking methods:
When marking weld seams, attention should be paid to the correctness of the marking position. The specific provisions of the marking position are as follows:
1) On the left side of the weld symbol, mark blunt edge height P, groove height H, weld Angle height K, weld residual height H, penetration depth S, root radius R, weld width C, weld spot diameter D
2) On the right side of the weld symbol, mark the weld length L, the weld gap E and the same number n
3) Mark groove Angle A and root clearance B above the weld symbol