Low alloy steel welding rod and manufacturing method thereof
A low-alloy steel and welding rod technology, applied in the field of low-alloy steel welding rod and its manufacturing, can solve the problems of welding rod head leftover, difficulty in welding and inspection, curing and other problems, and achieve the effect of avoiding residue, reasonable composition and improving quality
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Embodiment 1
[0021] Embodiment 1: A kind of low-alloy steel welding rod, comprises metal welding core and coating, and metal welding core comprises the working part and clamping part of fixed connection, and the diameter of described working part and clamping part is the same, and described working part is Iron alloy wire, the clamping part is aluminum-magnesium alloy wire, and the coating contains the following components in parts by weight: feldspar: 1, synthetic mica: 2, rutile: 6, fluorite: 5, electrolytic manganese: 2, Soda ash: 1, nickel powder: 6, zircon sand: 1, iron powder: 13, and the matrix is 30 parts of marble.
[0022] During manufacture, adjust the cutting length of the welding core to the original length minus the length of the clamping part, and make the top of the welding core into a tapered shape with a cutting angle of 20°-50°. The joint between the working part and the clamping part is connected by friction welding. The specific method is to clamp the working part an...
Embodiment 2
[0025] Embodiment 2: A kind of low-alloy steel welding rod, comprises metal welding core and coating, and metal welding core comprises the working part and clamping part of fixed connection, and the diameter of described working part and clamping part is the same, and described working part is Iron alloy wire, the clamping part is aluminum-magnesium alloy wire, and the coating contains the following components in parts by weight: feldspar: 2, synthetic mica: 5, rutile: 8, fluorite: 10, electrolytic manganese: 4, Soda ash: 3, nickel powder: 8, zircon sand: 3, iron powder: 16, the matrix is 40 parts of marble.
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