Electroplastic continuous drawing device for magnesium alloy wire

Abstract

The invention discloses an electroplastic continuous drawing device for a magnesium alloy wire. The electroplastic continuous drawing device comprises a wire feeding mechanism, an electric heating mechanism, a drawing mechanism and a wire collecting mechanism which are sequentially arranged in the drawing direction of the magnesium alloy wire, wherein the wire feeding mechanism comprises a wire feeder and a first motor which are connected with each other; the wire feeder is used for winding the magnesium alloy wire; the first motor is used for driving the wire feeder to rotate so as to conveythe magnesium alloy wire into the electric heating mechanism at a constant speed; the electric heating mechanism is used for conducting induction current heating on the magnesium alloy wire; the drawing mechanism is used for drawing the heated magnesium alloy wire; and the wire collecting mechanism is used for collecting the drawn magnesium alloy wire. By means of the electroplastic continuous drawing device, online electroplastic continuous drawing of the magnesium alloy wire can be completed, and the production efficiency, the total production amount and the material performance of drawing production of the magnesium alloy wire are stably improved.

Description

technical field [0001] The invention relates to the technical field of metal wire drawing, in particular to an electroplastic continuous drawing device for magnesium alloy wire. Background technique [0002] Compared with other metal structural materials, magnesium and its alloys have the advantages of low density, high specific strength, high specific stiffness, strong electromagnetic shielding and radiation resistance, and good biocompatibility. Magnesium alloy wire can be used to prepare surgical sutures, and magnesium alloy tubing is suitable for making medical devices such as vascular stents. Drawing is the main plastic deformation method for forming wire, wire and pipe. Dies with different die openings can be installed on the same drawing machine to obtain different cross-sectional shapes and sizes. Therefore, the magnesium alloy drawing machine is currently used to produce magnesium Main equipment for alloy wire, wire and pipe. [0003] Magnesium alloy has a hexagon...

AI Technical Summary

Problems solved by technology

The traditional magnesium alloy wire drawing machine lacks a heating device. The drawing process is to heat the material or the drawing die in a heating furnace and then return to the drawing machine for drawing. The whole drawing process has to be drawn many times. Heating and mold disassembly are interrupted, the process is cumbersome and inefficient, which is not conducive to the realization of large-scale batch industrial production

[0004] At the same time, the coordination of the movement speed of the wire feeding and wire outlet mechanism in the traditional magnesium alloy drawing machine is not good, which is easy to cause broken wires

However, in the traditional resistance furnace, the heating material or mold will have defects of heating inhomogeneity due to the influence of temperature differences in different areas in the electric heating furnace, mainly manifested as: cracks on the workpiece surface, peeling pits, uneven mechanical properties of the inner and outer layers, etc.

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