Cold machining technology for high-strength welding wire

Abstract

The invention belongs to the field of welding wires and relates to a cold machining technology for a high-strength welding wire, in particular to the high-strength welding wires and application of the high-strength welding wires. The high-strength welding wire comprises important metal elements and important alloy elements. Special base material is used for processing and used for depositing a crystal structure layer rough and high in adhesive force on the surface of metal. Therefore, the surface of the wire after the follow-up cold machining can be smoother and cleaner, and the defects of scratching, upwarping, a horizontally-placed-8 shape and other common defects prone to happening can be effectively avoided.

Description

technical field [0001] The invention belongs to the field of welding wire, in particular to high-strength welding wire and its technology. Background technique [0002] The research of high-strength welding wire is based on ordinary stainless steel welding wire, and the research and development of welding wire products with higher tensile strength and higher tensile strength of deposited metal. Mainly used for welding of heavy and large vehicles, etc. Since the mechanical properties of ordinary stainless steel welding wire and the mechanical properties of deposited metal cannot meet the increasing welding requirements of high-strength steel, a high-strength welding wire for heavy-duty and large-scale special vehicles is being invented. On the basis of welding wire, an appropriate amount of certain ingredients is added, and at the same time, the content of special ingredients is correspondingly increased. However, the change of the alloy composition of the welding wire brin...

AI Technical Summary

Problems solved by technology

Since the mechanical properties of ordinary stainless steel welding wire and the mechanical properties of deposited metal cannot meet the increasing welding requirements of high-strength steel, a high-strength welding wire for heavy-duty and large-scale special vehicles is being invented. On the basis of welding wire, add an appropriate amount of certain ingredients, and at the same time increase the content of special ingredients in it accordingly

However, the change of the alloy composition of the welding wire brings certain difficulties to the later production, which reduces the plasticity and toughness of the alloy steel.