A new type of solid welding wire processing and manufacturing method

Abstract

The invention relates to the field of welding material manufacturing, in particular to a manufacturing method of novel solid welding wires. The method starting from wire rod machining sequentially includes: forging, annealing, continuously wire drawing, scraping, and ultrasonic wave cleaning to obtain the solid welding wires which are bright and fine-grain. The solid welding wires include various non-ferrous metal and non-ferrous metal alloy welding wires. The manufactured solid welding wires have fine and even equiaxed grains on the transverse end faces and the longitudinal end faces, product strength and plasticity are increased evidently compared with other manufacturing methods, and excellent mechanical property is achieved. In addition, the manufacturing method is simple in process, low in waste material, high in yield and the like.

Description

technical field [0001] The invention relates to the field of welding material preparation, in particular to a method for processing and manufacturing a novel solid welding wire. Background technique [0002] At present, various types of gas-shielded solid wires and MIG solid wires are more and more widely used, and will gradually replace all kinds of early welding rods. Its mechanical properties are affected by the chemical composition of the wire rod. At the same time, its structural properties, mechanical properties, welding properties and other performance properties, such as tensile strength and wire feeding performance of finished products, are also affected by the processing and manufacturing methods to a large extent. That is to say, the wire rod processing method and technology determine the internal and external quality and performance of the final finished welding wire. In addition to strict requirements on chemical composition and geometric dimensions, qualified ...

AI Technical Summary

Problems solved by technology

The welding wire products obtained by these two processing methods are fibrous in the direction of their extension, the grains are severely damaged, and there are many defects such as internal dislocations and substructures; the welding wire material is very prone to work hardening, which seriously affects the finished welding wire. The microstructure and uniformity of the structure; its mechanical properties are greatly damaged, and it is difficult to balance strength and plasticity; the amount of deformation in a single pass is limited, the number of processing passes and annealing times is large, and the process is complicated; at the same time, these two processing methods are both It needs to pass through the mold, has high requirements for the operator, and is easy to break the line