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Method for preparing superfine filament from metal and alloy material

An alloy material and ultra-fine wire technology, which is applied in the field of non-ferrous metal new material preparation, can solve the problems of poor wire drawing deformation ability, complex process, low yield of blanks, etc., and achieve the effects of remarkable energy saving effect, simple method and high yield.

Inactive Publication Date: 2005-01-12
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 3. Due to the poor wire drawing deformation ability of the blank prepared by the traditional process, there are problems such as low yield, poor quality and complicated process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: Preparation of Directional Solidification Continuous Casting Copper Superfine Wire

[0017] Electrolytic copper is used as raw material, and copper is melted in a melting furnace on horizontal directional continuous casting equipment at a temperature of 1250°C. The heating temperature of the directional continuous casting mold is 1200°C. The diameter of the continuous casting wire rod is φ8mm, the cooling water is directly cooled on the casting rod, the flow rate of the cooling water is 60ml / min, the cooling distance is 50mm, and the continuous casting speed is 40mm / min, and the billet wire rod with a single crystal structure is prepared. Directly use continuous casting blanks for drawing: rough drawing for 5 passes to 1mm, medium drawing for 3 passes to 0.2mm, and fine drawing to a diameter of 0.028mm.

Embodiment 2

[0018] Example 2: Preparation of directionally solidified continuous casting aluminum ultra-fine wire

[0019] Electrolytic aluminum is used as raw material, and the aluminum is melted in a melting furnace on a horizontal directional continuous casting equipment at a temperature of 750°C. The heating temperature of the directional continuous casting crystallizer is 720°C. The diameter of the continuous casting wire rod is φ8mm, the cooling water is directly cooled on the casting rod, the flow rate of the cooling water is 60ml / min, the cooling distance is 50mm, and the continuous casting speed is 60mm / min, and the billet wire rod with a single crystal structure along the length direction is prepared. Directly use continuous casting blanks for drawing: rough drawing for 6 passes to 1mm, medium drawing for 3 passes to 0.2mm, and fine drawing to a diameter of 0.02mm.

Embodiment 3

[0020] Example 3: Preparation of Directional Solidification Continuous Casting Al-1%wtSi Ultrafine Wire

[0021] Using electrolytic aluminum and crystalline silicon as raw materials, the aluminum-silicon alloy is melted in the melting furnace on the horizontal directional continuous casting equipment at a temperature of 740 °C. The heating temperature of the directional continuous casting crystallizer is 720°C. The diameter of the continuous casting wire rod is φ8mm, the cooling water is directly cooled on the casting rod, the flow rate of the cooling water is 60ml / min, the cooling distance is 50mm, and the continuous casting speed is 60mm / min, and the billet wire rod with a single crystal structure along the length direction is prepared. Directly use continuous casting blanks for drawing: rough drawing for 5 passes to 1mm, medium drawing for 3 passes to 0.2mm, and fine drawing to a diameter of 0.025mm.

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Abstract

A process for preparing superfine metal (or alloy) wire includes such steps as conticasting by directional solidifying to obtain raw wire with monocrystal structure, direct coarse drawing and fine drawing.

Description

technical field [0001] The invention relates to a method for preparing superfine wires of metals and their alloy materials, which is a method for preparing copper, aluminum, zinc, magnesium and other non-ferrous metals, gold, silver, palladium, platinum, and other precious and rare metals, and their alloys The invention discloses a new method for material superfine wire, which belongs to the technical field of preparation of new nonferrous metal materials. Background technique [0002] With the development of high and new technologies such as electronics, communications, and computers, electronic equipment is developing in the direction of precision and miniaturization. For example, the requirements for semiconductor bonding wires are developing in the direction of high purity and ultra-fine; there are more and more requirements for ultra-fine wires of various noble and rare metals (silver, gold, palladium-based solder, platinum group metals, etc.); It is desirable to use h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C1/00B22D11/00C21D8/00C22F1/00
Inventor 许振明李建国
Owner SHANGHAI JIAO TONG UNIV
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