Low-spatter-rate ER50-6 gas-protection solid welding wire

Abstract

The invention provides a low-spatter-rate ER50-6 gas-protection solid welding wire. The low-spatter-rate ER50-6 gas-protection solid welding wire comprises a steel wire base body and a copper platinglayer which is coated on the surface of the steel wire base body. The steel wire base body comprises the following components of, by weight percentage, 0.06%-0.10% of C, 0.80%-1.00% of Si, 1.40%-1.60%of Mn, 0.010%-0.015% of S, less than or equal to 0.015% of P, less than or equal to 0.015% of Mo, less than or equal to 0.015% of Ni, less than or equal to 0.30% of Cu, less than or equal to 0.015% of Cr, less than or equal to 0.03% of V, 0.02-0.08% of Al, less than or equal to 0.008% of O, less than or equal to 0.007% of N and less than or equal to 0.0012% of Ca, the balance being Fe. The low-spatter-rate ER50-6 gas-protection solid welding wire adopts the method of chemical component control to control the transition form of dissolved drops and ensure the stability of transition of the dissolved drops, so that the effect of reducing the welding spattering rate is realized.

Description

technical field [0001] The invention belongs to the technical field of solid welding wires, in particular to a low spatter rate ER50-6 gas-shielded solid welding wire. Background technique [0002] The production and application of gas-shielded copper-plated solid wire is very common in our country. With the improvement of automation, especially the adoption of welding robots, the requirements for the continuity of the welding process are getting higher and higher. The welding spatter will form adhesion on the contact tip and the nozzle. Under the long-term welding condition, the welding spatter sticking to the contact tip and the nozzle will hinder the normal discharge of the welding wire and block the welding protection airflow, which will seriously lead to welding failure. Splashes fall into the molten pool forming slag inclusions. Reducing welding spatter and realizing long-time welding is an important direction for the development of welding wire. [0003] Therefore, ...

AI Technical Summary

Problems solved by technology

The welding spatter will form adhesion on the contact tip and the nozzle. Under the long-term welding condition, the welding spatter sticking to the contact tip and the nozzle will hinder the normal discharge of the welding wire and block the welding protection airflow, which will seriously lead to welding failure. Splashes fall into the molten pool to form slag inclusions

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