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Preparation method of copper wire

A technology for copper wire and copper wire drawing liquid, applied in the field of bonding wire, can solve the problems of short liquid change cycle, extreme pressure and anti-wear, broken wire and wire shrinkage, etc., to prevent surface oxidation, extreme pressure and resistance to Good wearability and the effect of reducing the diameter of wear scars

Pending Publication Date: 2020-12-15
河北临泰电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the purposes of the present invention is to provide a preparation method of tall oil acid emulsifier, the obtained tall oil acid emulsifier can solve the problem of wire breakage and shrinkage in the wire drawing process, short liquid changing period, extreme pressure and resistance Grinding and other issues

Method used

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  • Preparation method of copper wire
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 1. a preparation method of tall oil acid emulsifier, comprising,

[0046] S1: Weigh tall oleic acid, isatoic anhydride, galactosamide, azobisisobutyronitrile, and sodium hydroxide in a molar ratio of 1:1.32:1.25:0.01:0.01.

[0047] S2: Put tall oil acid, isatoic anhydride, azobisisobutyronitrile and toluene at 67°C, 220r / min, N 2 Stirring and reacting for 3.5 hours under protection gave the intermediate compound;

[0048] S3: Add sodium hydroxide to the intermediate compound, keep it warm at 110°C for 45min, add galactosamide, and then heat it at 150°C, 220r / min, N 2 Stirring reaction under protection for 4h, to obtain tall oil acid emulsifier.

[0049] 2. A preparation method for copper wire drawing liquid, comprising,

[0050] S1: In parts by weight, take 15 parts of castor oil, 3 parts of sulfonated castor oil, 3 parts of pentaerythritol oleate, 9 parts of triethanolamine borate, 22 parts of tall oil acid emulsifier, and 1000 parts of deionized water;

[0051] S2...

Embodiment 2

[0059] 1. a kind of preparation method of tall oil acid emulsifier, with embodiment 1

[0060] 2. A preparation method for copper wire drawing liquid, comprising,

[0061] S1: In parts by weight, take 13 parts of castor oil, 5 parts of sulfonated castor oil, 5 parts of pentaerythritol oleate, 7 parts of triethanolamine borate, 15 parts of tall oil acid emulsifier, and 1000 parts of deionized water;

[0062] S2: Heat deionized water to 56°C, add castor oil, sulfonated castor oil, pentaerythritol oleate, triethanolamine borate, and tall oil acid emulsifier at a stirring speed of 1200r / min, and continue stirring for 90 minutes. The copper wire drawing liquid was obtained, and the HLB value of the copper wire drawing liquid was 13.8.

[0063] 3. A kind of preparation method of copper wire, with embodiment 1.

Embodiment 3

[0065] 1. a preparation method of tall oil acid emulsifier 1, comprising,

[0066] S1: Weigh tall oleic acid, isatoic anhydride, and azobisisobutyronitrile at a molar ratio of 1:1.32:0.01.

[0067] S2: Put tall oil acid, isatoic anhydride, azobisisobutyronitrile and toluene at 67°C, 220r / min, N 2 Stirred and reacted for 3.5 h under protection to obtain tall oil acid emulsifier 1.

[0068] 2. A preparation method of copper wire drawing liquid, same as embodiment 1, the HLB value of copper wire drawing liquid is 16.3.

[0069] 3. A kind of preparation method of copper wire, with embodiment 1.

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Abstract

The invention discloses a preparation method of a copper wire, which belongs to the technical field of bonding wires. The method comprises the following steps: performing wire drawing and intermediateannealing on a copper rod through a wire drawing die, soaking the copper rod in a copper wire drawing solution, performing annealing heat treatment in the wire drawing process until a required size is formed, and performing final annealing heat treatment to obtain the copper wire. The copper wire drawing liquid comprises the following components, by weight: 13-16 parts of castor oil, 2-5 parts ofsulfonated castor oil, 2-5 parts of pentaerythritol oleate, 6-13 parts of triethanolamine borate, 12-25 parts of tall oleic acid emulsifier and 1000 parts of deionized water. According to the preparation method, the copper wire drawing liquid containing the tall oleic acid emulsifier is adopted, so that the phenomena of wire breakage and wire shrinkage are not easy to occur during wire drawing, the surface of a wire rod is smooth and free of scratches, a cone pulley is smooth in wiring, a copper wire with finer microstructure and more uniform distribution can be obtained, and the prepared copper wire has higher strength, hardness and resistivity; and no obvious oxidation sign exists on the surface.

Description

technical field [0001] The invention belongs to the technical field of bonding wires, and in particular relates to a method for preparing copper wires. Background technique [0002] Copper is one of the earliest metals discovered by human beings. It is purple in color and has a density of 8.92g / cm 3 , the atomic radius is 186pm, the melting point is 1083.4±0.2°C, and the boiling point is 2567°C. Copper has good ductility, and its electrical and thermal conductivity is very good, especially its electrical conductivity is better than gold, iron, aluminum, etc., second only to silver. The reason why copper has such excellent characteristics is that it is chemically stable and not easily corroded, and copper has good antimagnetic properties. Copper wires are in huge demand in the electronics, communications and electrical industries, and the use of copper wires in these industries accounts for nearly half of the consumption of copper wires. Copper wires are mainly used to pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/00C10M133/16C08B37/08C10N40/24C10N30/06C10N30/10C10N30/12C10N30/16
CPCC10M173/00C10M133/16C08B37/003C10M2207/402C10M2219/044C10M2207/283C10M2227/062C10M2215/08C10M2221/04
Inventor 李细江
Owner 河北临泰电子科技有限公司
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