Method for manufacturing tungsten-copper alloy rods and wires

A technology of tungsten-copper alloy and wire, which is applied in the field of material manufacturing, can solve the problems of waste of materials, high cost of tungsten-copper alloy rods and wires, and complicated process flow, so as to reduce energy consumption, stable product performance, and simple preparation process Effect

Inactive Publication Date: 2012-06-20
XIAMEN HONGLU TUNGSTEN MOLYBDENUM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the product with the specified specifications is obtained, the sheath must be removed by machining, which will inevitably result in waste of materials. In addition, the process flow is relatively complicated, and the cost of tungsten-copper alloy rods and wires produced by this method is relatively high.

Method used

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  • Method for manufacturing tungsten-copper alloy rods and wires
  • Method for manufacturing tungsten-copper alloy rods and wires
  • Method for manufacturing tungsten-copper alloy rods and wires

Examples

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Effect test

Embodiment 1

[0026] The tungsten-copper alloy with a copper content of 28% and tungsten as the corresponding balance prepared by the infiltration process has a diameter of φ14.5±0.5mm and a length of 400mm. Take it out after heating in the resistance furnace at 900℃ for 20 minutes, and feed it into a Y-shaped rolling mill unit with a nominal roll diameter of φ220mm. After 4 continuous rolling, it is processed into a tungsten-copper alloy rod wire A with a diameter of φ10±0.2mm at one time, 4 passes The continuous rolling unit moves as a whole, and its pass pattern changes as circle → triangle → hexagonal → arc triangle → circle, and the linear speed of the roll diameter is: 79.2 m / min, 97.88 m / min, 119.86 m / min, 146.88 m / min . Continue heating in a resistance furnace at a heating temperature of 800°C in a hydrogen atmosphere for 20 minutes, take it out, and send it to a single-head rotary hammer machine for single-channel rotary hammer processing. Repeat the steps of heating + rotary hamme...

Embodiment 2

[0030] The tungsten-copper alloy with a copper content of 28% and tungsten as the corresponding balance prepared by the infiltration process has a diameter of φ14.5±0.5mm and a length of 400mm. Take it out after heating in the resistance furnace at 850℃ for 20 minutes, and feed it into a Y-shaped rolling mill unit with a nominal roll diameter of φ220mm. After 4 continuous rolling, it will be processed into tungsten-copper alloy rod wire A with a diameter of φ10±0.2mm at one time, 4 passes The continuous rolling unit moves as a whole, and its pass pattern changes as circle → triangle → hexagonal → arc triangle → circle, and the linear speed of the roll diameter is: 79.2 m / min, 97.88 m / min, 119.86 m / min, 146.88 m / min . Continue heating in a resistance furnace at a heating temperature of 750°C in a hydrogen atmosphere for 20 minutes, take it out, and send it to a single-head rotary hammer machine for single-channel rotary hammer processing. Repeat the steps of heating + rotary ha...

Embodiment 3

[0032]The tungsten-copper alloy with a copper content of 28% and tungsten as the corresponding balance prepared by the infiltration process has a diameter of φ14.5±0.5mm and a length of 400mm. Take it out after heating in the resistance furnace at 900℃ for 20 minutes, and feed it into a Y-shaped rolling mill unit with a nominal roll diameter of φ220mm. After 4 continuous rolling, it is processed into a tungsten-copper alloy rod wire A with a diameter of φ10±0.2mm at one time, 4 passes The continuous rolling unit moves as a whole, and its pass pattern changes as circle → triangle → hexagonal → arc triangle → circle, and the linear speed of the roll diameter is: 79.2 m / min, 97.88 m / min, 119.86 m / min, 146.88 m / min . Continue heating in a resistance furnace at a heating temperature of 800°C in a hydrogen atmosphere for 20 minutes, take it out, and send it to a single-head rotary hammer machine for single-channel rotary hammer processing. Repeat the steps of heating + rotary hammer...

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Abstract

The invention discloses a method for manufacturing tungsten-copper alloy rods and wires. Tungsten-copper alloy circular ingots are processed into tungsten-copper alloy rods and wires by an even number of times of unwrapped continuous rolling or an even number of times of unwrapped single rolling with a Y-shaped rolling mill unit. The method for manufacturing the tungsten-copper alloy rods and wires has a simple preparation process, and no material loss occurs during the process; compared with a traditional rotary forging process, the heating times are reduced, the energy loss is reduced, no manual feeding is needed, and the performance of manufactured products is stable; compared with an extrusion process, the lengths of the ingots which can be processed are not restricted by the extrusion ratio; after rolling, the Y-shaped rolling mill unit can also manufacture finished rods and wires with the diameters being 3.0mm to 10mm by single-head rotary hammering and chain-type wire drawing; and the products are in various and comprehensive specifications, and the method for manufacturing the tungsten-copper alloy rods and wires is applicable to different scope of application.

Description

technical field [0001] The invention belongs to the technical field of material manufacturing, and in particular relates to a method for manufacturing tungsten-copper alloy rods and wires by means of mechanical processing. Background technique [0002] Tungsten-copper alloy is a composite material composed of tungsten particles with a body-centered cubic structure and a copper binder phase with a face-centered cubic structure, which are neither solid solution nor intermetallic compounds, and are usually called pseudoalloys or pseudoalloys. alloy. Therefore, it not only has the characteristics of high strength, high hardness and low expansion coefficient of tungsten, but also has the characteristics of high plasticity, good electrical conductivity and thermal conductivity of copper. These unique comprehensive properties make tungsten copper alloy widely used in the following fields Applications: 1) Electrical contacts of various high-voltage electrical switches; 2) Electrode...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/16B21B15/00
Inventor 蔡协勇林强杨福民赖亚洲于洋庄志刚
Owner XIAMEN HONGLU TUNGSTEN MOLYBDENUM IND CO LTD
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