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Production method for processing contacts by special-shaped copper bars

A production method and special-shaped technology, applied in the direction of electrical components, electric switches, circuits, etc., can solve the problems of high risk in the processing process, high processing cost, waste of labor and materials, etc., to save production cost and labor time cost, reduce Risk of processing, effect of reducing waste

Inactive Publication Date: 2014-07-09
厦门艾瑞克斯铜业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional processing method is not only cumbersome, waste of labor and materials, and high energy consumption, but also because the red punch is heated by gas, which has the risk of poisoning and burns, so the processing process is dangerous and the processing cost is high. The traditional method It takes 6 minutes to produce a contact piece, which takes a long time

Method used

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  • Production method for processing contacts by special-shaped copper bars
  • Production method for processing contacts by special-shaped copper bars
  • Production method for processing contacts by special-shaped copper bars

Examples

Experimental program
Comparison scheme
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Embodiment

[0020] Such as image 3 As shown, the production method of the switch contacts of high and low voltage electrical appliances comprises the following steps

[0021] 1. Extrusion. Using red copper raw materials and copper rods with a diameter of 20MM as raw materials, the copper rods are continuously extruded from the extrusion die into a copper billet in the shape of a contact piece. The copper rod is fed into the extrusion cavity driven by the extrusion wheel of the continuous extrusion unit. The rotation speed of the extrusion wheel is 5-7 revolutions / min. The cavity is heated at 400-550°C and kept for 60-90 minutes. 1. The metal is extruded under the action of heat generated by the deformation of the billet, and the copper billet of the corresponding shape is continuously extruded through the extrusion die of the contact shape. The extrusion speed is 1.05-1.47t / h. The copper billet is extruded at high temperature After exiting, enter the water cooling device to cool down to...

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Abstract

The invention discloses a production method for processing contacts by special-shaped copper bars. The production method includes the following steps: continuously extruding the copper bars by an extrusion die to form contact-shaped copper bar blanks, drawing the copper bar blanks by a drawing machine to form high-precision special-shaped copper bar products, sawing the whole copper bars to the thickness needed by single workpiece, and polishing the whole copper bars to acquire finished products. Compared with conventional methods, the production method has the advantages that working procedure is reduced and production cost and labor time cost are saved.

Description

technical field [0001] The invention relates to a material processing and forming method, in particular to a production method for processing contact sheets with special-shaped copper bars. Background technique [0002] The production process of contact sheets for traditional high and low voltage electrical switches is as follows: figure 1 As shown, there are a total of the following multiple processes, including: 1. Extrusion, using copper rods as blanks, extruding semi-finished copper bars from extrusion dies; 2. Pulling out the extruded semi-finished copper bars with a cross-section of Flat copper bars with rectangular or rounded corners; 3. Cutting the entire copper bar into equal lengths; 4. Rough cutting: cutting the copper bars into small pieces required by the workpiece; 5. The first red punch, Punch out the first corner 5, see figure 2 The cross-sectional view of the product shown; 6. The second red punch, stamping bump 6; 7. The third red punch, punching out the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00H01H11/04
Inventor 许国宝奚常亮
Owner 厦门艾瑞克斯铜业有限公司
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