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Manufacturing and processing method of rectangular section dissimilar metals composite wires

A dissimilar metal, rectangular cross-section technology, used in metal processing equipment, other manufacturing equipment/tools, manufacturing tools, etc., can solve the problems of difficulty in control, low bonding strength between two metals, uneven thickness of the cladding layer, etc., to achieve the production of finished products. High rate and productivity, strong metallurgical bond, dense coating effect

Inactive Publication Date: 2007-08-01
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a solid metallurgical bonding and bonding between composite metals for the problems of low bonding strength between the two metals, uneven thickness of the cladding layer, and difficulty in controlling the composite wire produced by the above-mentioned traditional method. High strength; dense cladding layer, uniform thickness and easy control; the composite wire meets the requirements of strength and thermal conductivity, and uses a preparation and processing method of a rectangular cross-section dissimilar metal composite wire with stable performance

Method used

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  • Manufacturing and processing method of rectangular section dissimilar metals composite wires

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Referring to the accompanying drawings, this method includes:

[0022] (1), choose the oxygen-free copper tube of wall thickness 1mm as cladding metal tube 7, and carry out degreasing and cleaning to its inner surface, clean and refresh; choose the molybdenum rod that diameter is 5mm to be metal mandrel 6, to its straightening and surface refresh treatments;

[0023] (2), according to the following steps for assembly and positioning:

[0024] a. Assemble the treated molybdenum rod into the oxygen-free copper tube and install it on the bottom positioning device 8, plug the top positioning device 5 on the top of the oxygen-free copper tube and the molybdenum rod, and place the gap between the inner wall of the oxygen-free copper tube and the molybdenum rod There is a gap of 0.5mm between them;

[0025] b. Place the assembled oxygen-free copper tube and molybdenum rod in the cylindrical casing 3, and place the bottom positioning device 8 at the bottom of the cylindrical ...

Embodiment 2

[0031] Referring to accompanying drawing, its preparation method sees embodiment 1, selects the 30CrMnSi steel pipe of wall thickness 1.5mm to be cladding metal pipe, and its inner surface is degreased and cleaned, cleans and refreshes; Choose the T2 copper rod that diameter is 8mm, its Alignment and surface refresh treatment; then install and assemble according to the attached drawings, requiring a 2.5mm explosion gap between the inner wall of the 30CrMnSi steel pipe and the T2 copper rod; use No. 2 rock explosives, the radial explosive thickness is 50mm, and detonate the electric detonator; obtain 30CrMnSi Steel pipe / T2 copper core bimetallic composite billet, the interface shear bonding strength is greater than the T2 copper matrix strength (shear fracture occurs in the copper matrix); annealing at a temperature of 800 ° C - drawing multiple cycles to process to the required diameter Circular composite wire; annealed and cold-rolled to obtain a finished product of rectangula...

Embodiment 3

[0033] Referring to accompanying drawing, its preparation method sees embodiment 1, chooses the pure silver tube of wall thickness 1mm to be coating metal tube 7, and its inner surface is carried out degreasing cleaning; and surface refresh treatment; then install and assemble according to the attached drawings, requiring a 1.5mm explosion gap between the inner wall of the pure silver tube and the pure aluminum rod; use No. 2 rock ammonium antimony / wood powder / NaCl mixed explosive, and the radial explosive thickness is 25mm , detonate the electric detonator; obtain pure silver tube / aluminum core bimetal composite billet; anneal at a temperature of 350°C and draw for multiple cycles to process a circular composite wire with a diameter of Φ0.03mm±0.002mm; anneal, cold-roll A finished product of a rectangular cross-section dissimilar metal composite wire is obtained. Its elongation ≥ 7%; strength σb ≥ 200Mpa.

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Abstract

The invention discloses a preparation method of rectangular cross section heterologous metal composite wire. It assemblies the metal core rob which surface is treated in coated metal tube and installs it on the positioning device of bottom, blocks the top of coated metal pipes and metal core rob with top positioning device, the gap between inner wall of coated metal pipe and metal core rob is 0.5mm - 2.5mm; puts the coated metal pipe and metal core rob in cylindrical annular tube, setting explosives and electric detonator between the coated metal pipe and cylindrical annular tube uniformly; detonates electric detonator and realizes the explosive recombination of two metal of coated metal pipe and metal core rob in a moment; heat treats the combination rob which is connected and combined by explosion, plastically rotating forges and draws at temperature of 350 DEG C-950DEG C, then prepares the needed round cross section heterologous metal composite wire; rolls the round cross section heterologous metal composite wire into rectangular cross section heterologous metal composite wire. The invention is a method of simple production processes, high production yield and productivity, reducing the manufacturing cost significantly.

Description

technical field [0001] The invention relates to a preparation and processing method of a wire, in particular to a preparation and processing method of a rectangular cross-section dissimilar metal composite wire. Background technique [0002] Electronic instruments and equipment are developing in the direction of high power and miniaturization, and the requirements for comprehensive properties such as heat dissipation (conduction), strength, stiffness, electrical conductivity, thermal expansion matching, and processing performance of materials are increasing. Rectangular cross-section metal wires used in military and civil equipment such as electronics and communications require high strength, good thermal conductivity and electrical properties (small microwave loss), and other properties, and a single metal is difficult to meet this requirement. [0003] The layered composite wire is prepared by metal composite (coating) technology, so that the composite wire has the advanta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P23/04B23P23/06B23K20/08B23K20/24C06B31/30C06B31/28
Inventor 杨扬
Owner CENT SOUTH UNIV
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