Novel method of removing oxides on surface of steel core wire of bimetallic wire

Abstract

A novel method of removing oxides on the surface of a steel core wire of a bimetallic wire comprises a method of shot blasting treatment for the surface of the steel core wire, wherein shelling treatment for the surface of the steel core wire is performed before shot blasting treatment; the steel core wire penetrates a group of shelling wheels vertically arranged and another group of shelling wheels horizontally arranged; each group of shelling wheels comprises a plurality of fixing steel wheels and movable steel wheels with grooves formed around the fixing steel wheels and the movable steel wheels; the fixing steel wheels and the movable steel wheels are arranged at intervals; adjustment levers which are perpendicular to the direction of forward motion of the steel core wire are arranged on the movable steel wheels; when the steel core wire penetrates the grooves of each group of shelling wheels, the adjustment levers on the movable steel wheels are adjusted, so that the movable steel wheels are enabled to move in the direction perpendicular to the steel core wire; the steel core wire bends and is tightened; oxide shell layers on the surface of the steel core wire crack and fall down; and then shot blasting treatment technology is used for further removing the residual oxide shell layers on the surface of the steel core wire. The novel method has the advantages that the oxides on the surface of the steel core wire can be completely removed; strength of the steel core wire can be selected during shelling; after treated by adopting the novel method, the bimetallic wire manufactured by the steel core wire coated with aluminum-layer has high quality; and as the novel method is a purely physical method, the pollution of environment and damage to operating workers can be avoided.

Description

technical field [0001] The invention relates to a method for treating the surface of a metal wire, in particular to a new method for removing oxides on the surface of a steel core wire of a double metal wire. Background technique [0002] When making the existing bimetallic wire with aluminum layer clad steel core wire, it is first necessary to remove a layer of dense oxide shell formed on the surface of the wire during heating and lead quenching during steel core wire production, and then remove the aluminum layer Coated on the surface of the steel core wire to make a bimetallic wire. In this way, the bonding force between the aluminum layer and the steel core wire can be enhanced, and the quality of the bimetallic wire can be improved. There are generally several methods for removing the oxide shell on the surface of the steel core wire: the first is the chemical removal method, which is cleaned with phosphoric acid, that is, the steel core wire is passed through several ...

AI Technical Summary

Problems solved by technology

There are generally several methods for removing the oxide shell on the surface of the steel core wire: the first is the chemical removal method, which is cleaned with phosphoric acid, that is, the steel core wire is passed through several phosphoric acid cleaning boxes to remove the oxide shell on the surface of the steel core wire. layer, the removal effect of this method is not very ideal, and the energy consumption is high, the pollution is large, and it will also damage the health of the operating staff; the second method uses a combination of physical removal and chemical removal, that is, the steel core wire is first cleaned by physical cleaning. The method peels off the oxide shell, and then cleans the unpeeled part with phosphoric acid. This method still uses chemical cleaning, and also has the problems of high energy consumption, large pollution, and damage to the health of operators; the third method uses pure physical The cleaning method uses shot blasting technology to remove the surface of the steel core wire with small steel shot at a high speed. The Chinese invention patent application CN102294656A proposes such a technical scheme, but this method is not effective in removing large diameter steel core wires. When the oxide shell is thicker on the surface, the oxide shell is difficult to remove, and the cleaning effect is not good

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