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A kind of preparation method of thick-gauge copper-steel composite board

A composite board and thick-gauge technology, which is applied in the field of manufacturing thick-gauge copper-steel composite boards, can solve problems such as large plastic deformation of composite boards, large residual stress at the interface, and complicated production process, so as to eliminate stress and improve interface bonding Quality, service life improvement and safety effect

Active Publication Date: 2021-08-24
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For thick copper-steel clad plates, symmetrical rolling is often used, which creates higher requirements for the combination process of slabs and complicates the production process; whether it is hot-rolled or cold-rolled, the clad plate is A large plastic deformation is required, which will lead to a large residual stress at the interface and affect the bonding effect

Method used

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  • A kind of preparation method of thick-gauge copper-steel composite board
  • A kind of preparation method of thick-gauge copper-steel composite board
  • A kind of preparation method of thick-gauge copper-steel composite board

Examples

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Effect test

Embodiment 1

[0028] A preparation method of a thick gauge copper-steel clad plate, the specific operation steps are:

[0029] Step 1: Use a belt sander to grind the surfaces to be joined and the sides of the copper plate and the steel plate, respectively, to make the polished surface metallic luster, and then use alcohol and acetone to clean the polished surfaces in turn; T2 copper plate and Q345 steel plate are used as the base material of copper-steel composite plate. The specification of T2 copper plate is 200mm×400mm×20mm, and the specification of Q345 steel plate is 200mm×400mm×30mm; the surface roughness Ra≤100μm;

[0030] Step 2: Assemble the treated copper plates and steel plates, then stack them into the working chamber of the vacuum electron beam welding machine, and vacuumize them to 1×10 -2 Pa, and then adopt the welding process of welding speed of 200mm / min and welding electron beam current of 55mA to vacuum-weld and encapsulate the plate; during welding, the position of the b...

Embodiment 2

[0036] A preparation method of a thick gauge copper-steel clad plate, the specific operation steps are:

[0037] Step 1: Use a belt sander to grind the surfaces to be joined and the sides of the copper plate and the steel plate, respectively, to make the polished surface metallic luster, and then use alcohol and acetone to clean the polished surfaces in turn; T1 copper plate and Q235 steel plate are used as the base material of copper-steel composite plate. The specification of T1 copper plate is 400mm×400mm×50mm, and the specification of Q235 steel plate is 400mm×400mm×30mm; the surface roughness Ra≤100μm;

[0038] Step 2: Assemble the treated copper plates and steel plates, then stack them into the working chamber of the vacuum electron beam welding machine, and vacuumize them to 5×10 -3 Pa, and then adopt the welding process of welding speed of 300mm / min and welding electron beam current of 70mA to vacuum-weld and encapsulate the plate; during welding, the position of the b...

Embodiment 3

[0044] A preparation method of a thick gauge copper-steel clad plate, the specific operation steps are:

[0045]Step 1: Use a belt machine to polish the contact surface and side surfaces of the copper plate and steel plate respectively until the surface is metallic luster, and then clean the polished surface with alcohol and acetone in sequence; among them, T2 is selected Copper plate and Q255 steel plate are used as the base material of copper-steel composite plate. The specification of T3 copper plate is 300mm×400mm×25mm, and the specification of Q255 steel plate is 300mm×400mm×35mm; surface roughness Ra≤100μm;

[0046] Step 2: Assemble the treated copper plate and steel plate, and stack them into the working chamber of the vacuum electron beam welding machine, evacuate to 0.1Pa, and then adopt the welding process of welding speed 250mm / min and welding electron beam current 65mA , carry out vacuum welding and packaging on the plate; the position of the beam spot should be of...

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Abstract

A method for preparing a thick-gauge copper-steel composite plate, which belongs to the field of composite plate preparation; the preparation method comprises the following steps: Step 1: surface-treat copper plates and steel plates to remove surface scale; step 2: treat the copper plates and steel plates After forming the billet, put it into a vacuum electron beam welding machine to evacuate, and then carry out electron beam welding and packaging; step 3: heat and diffuse the obtained vacuum welded and packaged copper-steel composite slab; step 4: heat the composite panel Pressing is applied to the blank to make the copper-steel interface completely compound, and the copper-steel clad plate of the present invention is obtained. The purpose of the present invention is to effectively realize the preparation of thick-gauge copper-steel composite plates, save costs, and various mechanical properties can effectively meet the application requirements in the metallurgical field. The thick-gauge copper-steel clad board prepared by the invention has an interfacial bonding rate of up to 100% and high bonding strength.

Description

technical field [0001] The invention belongs to the field of composite plate preparation, and in particular relates to a method for manufacturing a thick gauge copper-steel composite plate. Background technique [0002] Copper and copper alloys are widely used in metallurgy due to their excellent thermal conductivity, and are often used as cooling staves and continuous casting molds for blast furnaces. Its use process is often damaged due to factors such as high temperature oxidation, surface friction, chemical corrosion and low strength, which greatly increases the maintenance cost of the smelting process, and in severe cases will affect the safety of life and property. [0003] The copper-steel composite material combines the excellent properties of copper and steel, not only has the excellent ductility and thermal conductivity of copper, but also has the high strength and good deformation resistance of steel. It makes the structure made of the copper-steel composite plat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K15/06B23K15/00
CPCB23K15/0026B23K15/0033B23K15/0046B23K15/06
Inventor 骆宗安沈威谢广明王明坤余焕
Owner NORTHEASTERN UNIV LIAONING
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