A copper crucible welding method

Abstract

The invention discloses a red copper crucible welding method, and belongs to the technical field of red copper crucible welding. Welding joints are high in quality, air flow is protected to be stable, surrounding air can be effectively isolated, a weld pool is stable during welding, flashing is little, air holes are not generated easily, argon arc welding heat is concentrated, temperature is high, welding speed is high, and arcs are stable. When a red copper crucible is welded in an argon arc welding mode, no slag or splashing is generated, the weld pool and the electric arcs are good in resolvability, and operation is convenient.

Description

technical field

[0001] The invention relates to the technical field of copper crucible welding, in particular to a copper crucible welding method. Background technique

[0002] Copper crucible is the core part of non-ferrous metal smelting in vacuum consumable electric arc furnace. The crucible is 2500mm long, 660mm in diameter (inner diameter), and 30mm thick. It is tubular and weighs about 1450Kg. After casting according to quality requirements, it must be forged and rolled. Through its relatively dense metal structure, the technical requirements of high density, high current and bottom negative pressure working environment are guaranteed on the unit area. However, during the welding process of red copper, defects such as cracks, pores, deformation, welding bumps, and incomplete penetration are prone to occur, and these defects have a serious impact on product quality. Therefore, how to manufacture a copper crucible of acceptable quality is a subject that requires a lot ...