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Copper/glass/copper clad composite wire and preparation method thereof

A technology of glass coating and composite wire, which is applied in the direction of plating, coating, and metal material coating process of superimposed layers, which can solve the problems of difficult process stability, small glass melting pool, and unstable performance of components. Wide combination possibilities and increased reliability

Inactive Publication Date: 2018-12-25
刘志红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are several types of composite microwires. One type is mainly glass-coated copper wire and glass-coated stainless steel wire prepared by melt spinning. Due to the small molten pool of glass, it is difficult to stabilize the process. Core wire and glass-coated wire The thickness of the cladding layer varies greatly in the direction of the length of the composite wire, which may cause instability in the performance of components
The other is bimetallic composite wires prepared by plastic processing methods, such as copper-clad aluminum, silver-clad aluminum, aluminum-clad steel, etc. Due to the limitations of the properties of the two metals and processing technology, the type and range of composite wires are subject to certain restrictions. limitations
There is also a class such as enameled wire, etc., but the high temperature resistance of this type of composite wire is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: φ0.6 The forming process of mm copper / glass / copper clad composite wire

[0023] The diameter of the copper core of the composite wire is φ0.4 mm, the thickness of the glass cladding layer is 0.05mm, and the thickness of the outer copper cladding is 0.05mm.

[0024] The production steps of copper / glass / copper clad composite wire are:

[0025] 1) Use sodium hydroxide solution to degreasing and degreasing the surface of copper wire;

[0026] 2) Preparation of glass-coated copper wire

[0027] The glass-coated copper wire is prepared by the fusion pultrusion method. The specific process is as follows: the entrance of the mold for preparing the glass-coated copper wire is in direct contact with the molten glass pool, and the clean copper wire is removed from the molten glass pool under the gas protection state. After passing through, the glass is evenly coated on the surface of the copper wire in the mold, and then pulled out of the mold, and then forcedly ...

Embodiment 2

[0033] Example 2: Forming process of 0.4×1 mm copper / glass / copper clad composite wire

[0034] The cross-sectional size of the copper core wire is 0.2 × 0.8 mm, the thickness of the glass cladding layer is 0.05 mm, and the thickness of the outer copper cladding is 0.05 mm.

[0035] The production steps of copper / glass / copper clad composite wire are:

[0036] 1) Use sodium hydroxide solution to degreasing and degreasing the surface of copper wire;

[0037] 2) The treated copper wire (protected by nitrogen gas) passes through the molten glass pool, and then passes out of the glass-coated copper wire mold. The size of the mold sizing belt is 0.3 × 0.9 mm, and the wire drawing force at the mold outlet is 5N, the wire drawing speed is 100 mm / s, and the forced cooling of the glass-coated wire adopts the water spray method to make the glass-coated copper wire. The glass melting pool and the copper wire are both in the gas protection state. The softening point is 650-700℃, and the h...

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Abstract

The invention provides a copper / glass / copper / clad composite wire and a preparation method thereof. The section shape of the composite wire can be round, flat or rectangular or the like, and the composite wire is made of cooper, glass and copper from inside to outside; the external cladding layer copper is prepared through the methods of electroless plating and electroplating; and the section shapeof a copper core wire can be round, flat or rectangular and the like. A preparation technology of the composite wire comprises the steps that (1) a copper wire is subjected to oil removing and degreased; (2) a glass-clad copper wire is prepared through a molten pultrusion method; (3) the glass-clad copper wire is subjected to surface treatment; (4) the roughed glass-clad copper wire is activatedthrough hydrogen peroxide and a concentrated sulphuric acid solution; (5) the glass-clad copper wire is subjected to electroless copper plating; and (6) the copper clad layer is subjected to brushingelectroplating.

Description

technical field [0001] The invention relates to a multi-material coated composite wire, in particular to a copper / glass / copper / coated composite wire and a preparation method. Background technique [0002] With the development of information technology, higher requirements are put forward for the application and performance of metal composite microwires, which should have higher sensitivity, faster response, high temperature resistance, corrosion resistance and other properties. This forces the production of new types of composite microfilaments that are thinner and with better properties. At present, there are mainly several types of composite microfilaments. One type is mainly glass-coated copper wire, glass-coated stainless steel wire, etc. prepared by melt spinning. The thickness of the coating varies greatly in the length direction of the composite wire, which may cause instability of the performance of the components. The other type is the bimetallic composite wire pr...

Claims

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Application Information

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IPC IPC(8): C23C28/02C03C25/46C03C25/66
CPCC03C25/46C03C25/66C23C28/023
Inventor 刘志红
Owner 刘志红
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