Method for preparing copper-clad steel composite material

A composite material and copper-clad steel technology, which is applied in the manufacture of cables/conductors, electrical components, root rods/rods/wires/strip conductors, etc., can solve the problems of low yield, poor bonding strength of copper-clad steel composite materials, and production efficiency low level problem

Inactive Publication Date: 2017-02-22
HUNAN 3T NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing copper-clad steel composite materials, so as to solve the problem of poor bonding strength, high cost, low production efficiency and low yield of copper-clad steel composite materials produced by existing preparation methods. other shortcomings

Method used

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  • Method for preparing copper-clad steel composite material
  • Method for preparing copper-clad steel composite material
  • Method for preparing copper-clad steel composite material

Examples

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preparation example Construction

[0041] see figure 1 , the embodiment of the present invention provides a method for preparing a copper-clad steel composite material, which specifically includes the following steps:

[0042] S 1. Select copper pipe 3 and steel rod 4 as raw materials, and carry out derusting, deburring, degreasing and cleaning treatments on the inner surface of the copper pipe 3 and the outer surface of the steel rod 4;

[0043] S2. Set the copper pipe 3 on the outside of the steel rod 4 to obtain a bimetal blank;

[0044] S3, drawing the bimetal blank, so that the copper tube 3 is plastically deformed, so that the deformed copper tube 3 and the steel rod 4 are attached to each other;

[0045] S4, vacuumizing the bimetal blank after the drawing process, so that the air in the gap between the copper tube 3 and the steel rod 4 is discharged;

[0046] S5. Sealing the two ends of the bimetal blank by welding process to form a closed space to obtain a copper-clad steel blank;

[0047] S6, heating ...

Embodiment 1

[0080] Such as figure 2 and Figure 4 As shown, in this embodiment, a circular copper tube 3 made of copper, with a diameter of Ф150 mm and a wall thickness of 3 mm is selected as the outer layer cladding material, and a Q235 circular steel rod 4 made of low carbon steel with a diameter of Ф140 mm is selected as the inner core material , the length of the copper tube 3 is greater than or equal to the length of the steel rod 4, so that the copper tube 3 can completely wrap the steel rod 4. The inner and outer surfaces of the copper pipe 3 and the outer surface of the steel rod 4 are cleaned by mechanical processing and chemical methods to remove dirt such as burrs, rust spots, oil stains, waste chips and organic matter.

[0081] Under normal temperature environment, use pressure equipment to put steel rod 4 into hollow copper tube 3 to obtain bimetallic blank; then draw copper tube 3 through variable diameter die and drawing equipment, so that the outer diameter of copper tube ...

Embodiment 2

[0084] Such as image 3 , Figure 5 and Figure 6 As shown, the present embodiment selects a copper alloy material, a width of 120 mm, and a square copper tube 3 with a wall thickness of 5 mm as the outer cladding material, and selects a low-alloy steel material and a width of 105 mm as a Q235 square steel rod 4 as an inner core material. The length of the copper pipe 3 is greater than or equal to the length of the steel rod 4, so that the copper pipe 3 can completely wrap the steel rod 4. The inner and outer surfaces of the copper pipe 3 and the outer surface of the steel rod 4 are cleaned by mechanical processing and chemical methods to remove dirt such as burrs, rust spots, oil stains, waste chips and organic matter.

[0085] Under normal temperature environment, use pressure equipment to put steel rod 4 into hollow copper tube 3 to obtain bimetallic blank; then draw copper tube 3 through variable diameter die and drawing equipment, so that the outer diameter of copper tu...

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Abstract

The invention discloses a method for preparing a copper-clad steel composite material. The method comprises the following steps: performing treatment of rust removal, burr removal, oil removal and washing on the inner surface of a copper tube and the outer surface of a steel rod; sleeving the copper tube on the steel rod so as to obtain a double-metal blank; performing pull-drawing treatment on the double-metal blank so as to cause plastic deformation to the copper tube and clue the copper tube to the steel rod; performing vacuuming treatment on the double-metal blank so as to discharge air in the gap between the copper tube and the steel rod; sealing two ends of the double-metal blank by using a welding process so as to form a sealed space and thus obtain a copper-clad steel blank; performing treatment of heating and hot-rolling molding on the copper-clad steel blank, thereby obtaining the copper-clad steel composite material. According to the method disclosed by the invention, as procedures of vacuum sleeving, hot-rolling molding and the like are implemented, the copper tube and the steel rod can be mutually combined in a vacuum environment, then the copper-clad steel composite material can be prepared, and the method has the advantages of being high in combination strength, yield and capacity, adjustable in thickness of a copper layer, high in production efficiency, good in corrosion resistance and the like.

Description

technical field [0001] The invention relates to the technical field of metal composite materials, in particular to a preparation method of copper-clad steel composite materials. Background technique [0002] The copper-clad steel composite material is a bimetallic material with a copper layer on the surface of the steel. The cladding material copper has excellent electrical conductivity, thermal conductivity and corrosion resistance, and the inner material steel has the advantages of high strength, so that the copper clad steel composite material made of copper clad on the outer surface of the steel has electrical conductivity Therefore, copper-clad steel composite materials are widely used in overhead communication lines, power lines in large spans or severely corroded areas, electrified railways, rail transit lines, catenary overhead lines, Power cable shielding lines and other fields. [0003] At present, the production methods of copper-clad steel composite materials o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B5/02
CPCH01B13/00H01B5/02
Inventor 向勇李聚良李存良曾麟芳胡勇
Owner HUNAN 3T NEW MATERIAL
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