Basic knowledge of commonly used welding equipment and materials

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(1) Welding materials for manual arc welding 1. The composition of the welding rod The welding rod is the melting electrode used in the electric arc welding with coating. It is composed of two parts: a coating and a welding core.

(L) Welding core. The metal core covered by the coating in the welding rod is called the welding core. The welding core is generally a steel wire with a certain length and diameter. During welding, the welding core has two functions: one is to conduct welding current and generate an arc to convert electrical energy into heat; the other is to melt the welding core itself into filler metal and fused with the base metal to form a weld.

The special steel wire used for welding can be divided into three types: carbon structural steel wire, alloy structural steel wire and stainless steel wire.

(2) Medicine skin. The coating that is pressed on the surface of the core is called a coating. Coating a coating composed of various minerals on the outside of the welding rod can stabilize the arcwelding2

Post time: Dec-07-2021