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Electrode wire for slow-travel wire spark erosion fabrication and preparation method thereof

A technology for corrosion processing and electrode wire, applied in the field of low-copper slow-moving wire electrode wire and its preparation, can solve the problems of increased production cost, expensive production equipment, complicated preparation process, etc., and achieves reduction of copper content, simple production equipment, The effect of fewer preparation steps

Active Publication Date: 2010-06-09
NINGBO BODE HIGHTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the preparation method of electrode wires for slow-moving wire EDM is generally implemented in two steps: firstly, copper-zinc wires or copper-clad steel wires are prepared as core wires, and secondly, a certain layer is coated on the outer surface of the core wires. thickness of zinc, but there are problems such as complex preparation process, numerous procedures, expensive production equipment, etc., which increase the production cost

Method used

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  • Electrode wire for slow-travel wire spark erosion fabrication and preparation method thereof
  • Electrode wire for slow-travel wire spark erosion fabrication and preparation method thereof

Examples

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Effect test

Embodiment 1

[0020] Alloys were formulated according to the following weights: Cu: 47.440 kg; Zn: 32.036 kg; Mn: 0.400 kg; Mg: 0.08 kg; La: 0.032 kg; Zr: 0.016 kg. Put the prepared mixture into a power frequency induction melting furnace to melt it, the melting temperature is 1180°C, and the holding time is 30 minutes; continuously melt three furnaces of liquid metal and introduce them into the horizontal continuous casting furnace one by one, and then use the horizontal The continuous casting method is used to prepare alloy wire blanks. The horizontal continuous casting process is as follows: set the continuous casting temperature to 1150°C, the cooling water pressure of the crystallizer during continuous casting is 0.7-0.8MPa, the cooling water inlet temperature is ≤32°C, and the temperature difference between the inlet and outlet water is 7 ~ 8 ℃, the continuous casting speed is 1500mm / min; then the wire billet is drawn and annealed online by multiple channels Annealing is carried out w...

Embodiment 2

[0023] Alloys were formulated according to the following weights: Cu: 46.799 kg; Zn: 32.596 kg; Al: 0.153 kg; Mn: 0.407 kg; La: 0.026 kg; Ce: 0.023 kg. Put the prepared mixture into a power frequency induction melting furnace to melt it, the melting temperature is 1180°C, and the holding time is 30 minutes; continuously melt three furnaces of liquid metal and introduce them into the horizontal continuous casting furnace one by one, and then use the horizontal The continuous casting method is used to prepare alloy wire blanks. The horizontal continuous casting process is as follows: set the continuous casting temperature to 1150°C, the cooling water pressure of the crystallizer during continuous casting is 0.7-0.8MPa, the cooling water inlet temperature is ≤32°C, and the temperature difference between the inlet and outlet water is 7~8℃, the continuous casting speed is 1500mm / min; then the wire blank is subjected to multi-channel stretching and online annealing (annealing tempera...

Embodiment 3

[0026]Alloys are formulated according to the following weights: Cu: 45.826 kg; Zn: 32.621 kg; Sn: 0.048 kg; Mg: 0.855 kg; Ce: 0.017 kg; Cu-B master alloy (B content is 2%): 0.640 kg. Put the prepared mixture into a power frequency induction melting furnace to melt it, the melting temperature is 1180°C, and the holding time is 30 minutes; continuously melt three furnaces of liquid metal and introduce them into the horizontal continuous casting furnace one by one, using horizontal continuous casting Methods The alloy wire blank was prepared, and the horizontal continuous casting process was as follows: the continuous casting temperature was 1150°C, the cooling water pressure of the crystallizer was 0.7-0.8MPa during continuous casting, the inlet temperature of the cooling water was ≤32°C, and the temperature difference between the inlet and outlet water was 7-8°C , the continuous casting speed is 1500mm / min; then the wire blank is subjected to multi-channel stretching and online ...

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Abstract

The invention discloses an electrode wire used for slow feed electric spark corrosion processing and a preparation method thereof. The electrode wire comprises the following components by weight percentage: 51%-59.5% of Cu, 40%-48% of Zn, 0.1%-4.0% of M1, 0.002%-0.2% M2 and the remaining part consists of unavoidable impurities brought in by raw materials; wherein, M1 comprises two optional metalsselected from Mn, Sn, Al and Mg and content ranges of the two metals are both 0.05%-2.0% in the electrode wire; M2 comprises two optional metals selected from Zr, La, Ce, B, Fe and content ranges of the two metals are both 0.001%-0.1% in the electrode wire. The preparation manner adopts a shock chilling method which can refine the micro-structure of the electrode wire. The invention is characterized in that the method has simple preparation process and low product cost and effectively enhances electric spark corrosion processing speed of the electrode wire, thereby having strong market competitiveness.

Description

technical field [0001] The invention relates to an electrode wire for slow wire electric spark corrosion machining and a preparation method thereof, in particular to a low-copper slow wire electrode wire and a preparation method thereof. Background technique [0002] EDM is also known as electrical discharge machining or EDM. Its principle is to use the corrosion phenomenon caused by the instantaneous high temperature during pulse discharge between the two electrodes (between the electrode wire and the workpiece), and process the workpiece according to a certain trajectory, such as figure 1 shown. EDM has outstanding advantages such as small machining allowance, high machining accuracy, short production cycle, and low machining cost. [0003] For the electrode wire used for electric spark erosion machining, people hope that it has characteristics such as fast processing speed, simple manufacturing process, and low price. The existing electrode wires for EDM can be divided ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H1/04
Inventor 潘志军杨军梁志宁陈小军孟宪旗
Owner NINGBO BODE HIGHTECH CO LTD
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