Preparaton method of iron nickel alloy/copper composite wire material

A technology of iron-nickel alloy and composite wire, which is applied in the field of preparation of iron-nickel alloy/copper composite wire, which can solve the problems of high cost, poor air tightness, difficult processing, etc., achieve good electrical conductivity, improve air tightness and output Excellent power and thermal conductivity

Inactive Publication Date: 2004-12-22
SINO PLATINUM METALS CO LTD
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Problems solved by technology

However, the above methods all have different degrees of defects. The obtained materials either have poor sealing performance and poor airtightness, or the electrical properties after sealing with glass are difficult to meet the requirements for use, or the processing is difficult and the cost is high.

Method used

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  • Preparaton method of iron nickel alloy/copper composite wire material

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Embodiment Construction

[0022] Taking the 4J50 / CuΦ1.6mm product as an example, the process flow and process parameters adopted in the present invention:

[0023] 1. Billet production: purchased Φ85mm4J50 rods, the size of the wagon is Φ after punching 外 79×Φ 内 32.03×200mm, the copper core is turned to Φ32mm, the size of the front head is Φ76×30mm, the size of the bottom of the conical platform of the rear head is Φ36×10mm, and the welding part is turned into a V-shaped mouth for welding. After pretreatment, cleaning and drying, the oxygen-free copper core is embedded in the expansion alloy cylinder with a hydraulic press or a jack, and then welded with the front and rear heads to form a composite ingot.

[0024] 2. Thermal diffusion treatment: use a vacuum furnace to conduct thermal diffusion treatment at a temperature of 940°C-970°C for 2.5 to 3 hours, and then cool slowly with the furnace to below 400°C.

[0025] 3. Hot extrusion: use a 500T extruder to extrude the billet, use a cone die and a co...

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Abstract

A composite FeNi alloy/Cu wire 4J50/Cu is made of the copper rod cored FeNI alloy ingot through vacuum high-temp treating, squeezing at 900-950 deg.C, cold drawing and heat treating. Its advantages are high electric and thermal conductivities, better weldability, and good sealing performance to glass and ceramics.

Description

technical field [0001] The present invention relates to the preparation method of iron-nickel alloy / copper composite wire, especially Fe 50 Ni 50 / Cu composite wire preparation method. Background technique [0002] Expansion alloy is a metal material with special thermal expansion or other properties. It is a very important type of metal material in national economy and cutting-edge science and technology. It is an important part of precision alloys, mainly used in the manufacture of electric vacuum devices, precision instruments, instrument components, automatic control components and geodetic aspects. In recent years, the electronics industry has put forward performance requirements for expansion alloys with high strength, high hardness, high elasticity, high electrical conductivity, high thermal conductivity and non-magnetic properties, and corresponding special expansion alloys and sealing metals have emerged. Such as non-magnetic sealing alloy, high electrical conduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C1/00
Inventor 宁德魁虞坤夏昆巫小飞
Owner SINO PLATINUM METALS CO LTD
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