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Nickel-based welding wire for transition layer of copper-steel composite plate and preparation method of nickel-based welding wire

A composite board and transition layer technology, applied in welding equipment, welding media, manufacturing tools, etc., can solve problems such as weld cracking, achieve high cladding efficiency, and solve the effect of copper infiltration

Active Publication Date: 2021-09-17
XIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a nickel-based welding wire for the transition layer of copper-steel clad plate, which is specially used for the welding of the transition layer in the butt welding process of copper-steel clad plate, which can effectively solve the welding problem of copper-steel clad plate welding process. seam cracking problem

Method used

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  • Nickel-based welding wire for transition layer of copper-steel composite plate and preparation method of nickel-based welding wire
  • Nickel-based welding wire for transition layer of copper-steel composite plate and preparation method of nickel-based welding wire
  • Nickel-based welding wire for transition layer of copper-steel composite plate and preparation method of nickel-based welding wire

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preparation example Construction

[0038] The present invention also provides a preparation method of a nickel-based welding wire for the transition layer of a copper-steel composite plate, the specific steps are as follows:

[0039] Step 1: Weigh the following medicinal powders according to mass percentage: Cu powder 50.0-70.0%, Si powder 5.0-10.0%, Ag powder 20.0-40.0%, and the sum of the mass percentages of the above components is 100%;

[0040] In step 1, the particle sizes of Cu powder, Si powder and Ag powder are all 100-200 mesh.

[0041] Step 2: Heat the powder weighed in step 1 in a vacuum heating furnace at a heating temperature of 200-300°C and a holding time of 2-3 hours to remove the crystal water in the powder; place the dried powder in a mixing powder Fully mix in the machine, the mixing time is 2-3h;

[0042] Step 3: Use the pure nickel strip as the welding skin, use alcohol to remove the grease on the surface of the pure nickel strip, and wrap the powder prepared in step 2 in the pure nickel s...

Embodiment 1

[0048] Step 1: Weigh the following medicinal powders according to mass percentage: Cu powder 50.0%, Si powder 10.0%, Ag powder 40.0%, and the sum of the mass percentages of the above components is 100%.

[0049] In step 1, the particle size of Cu powder, Si powder and Ag powder are all 100 mesh.

[0050] Step 2: Put the powder weighed in step 1 into a vacuum heating furnace for heating at a temperature of 300°C and a holding time of 2 hours to remove the crystal water in the powder; place the dried powder in a powder mixer Carry out sufficient mixing, the mixing time is 2h;

[0051] Step 3: Use the pure nickel strip as the welding skin, use alcohol to remove the grease on the surface of the pure nickel strip, wrap the powder prepared in step 2 in the pure nickel strip through the flux-cored wire drawing equipment, and the first drawing die has an aperture of 2.6 mm;

[0052] In step 3, the thickness of the pure nickel strip is 0.4mm and the width is 7mm.

[0053] In step 3,...

Embodiment 2

[0059] Step 1: Weigh the following powders according to mass percentage: Cu powder 60.0%, Si powder 10.0%, Ag powder 30.0%, and the sum of the mass percentages of the above components is 100%.

[0060] In step 1, the particle size of Cu powder, Si powder and Ag powder are all 200 mesh.

[0061] Step 2: Put the powder weighed in step 1 into a vacuum heating furnace for heating at a temperature of 250°C and a holding time of 2 hours to remove the crystal water in the powder; place the dried powder in a powder mixer Carry out sufficient mixing, the mixing time is 2h;

[0062] Step 3: Use the pure nickel strip as the welding skin, use alcohol to remove the grease on the surface of the pure nickel strip, and wrap the powder prepared in step 2 in the pure nickel strip through the flux-cored wire drawing equipment. The first drawing die has an aperture of 2.6 mm;

[0063] In step 3, the thickness of the pure nickel strip is 0.4mm and the width is 7mm.

[0064] In step 3, the filli...

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Abstract

The invention discloses a nickel-based welding wire for a transition layer of a copper-steel composite plate. The nickel-based welding wire is prepared from a flux core and a welding skin, the flux core is prepared from the following components in percentage by mass: 50.0%-70.0% of Cu powder, 5.0%-10.0% of Si powder and 20.0%-40.0% of Ag powder, and the sum of the mass percentages of the components is 100%. The nickel-based welding wire is specially used for welding the transition layer in the butt welding process of a copper-steel explosion composite plate, and the problem that a welding seam cracks in the welding process of the copper-steel explosion composite plate can be effectively solved. The invention further provides a preparation method of the nickel-based welding wire for the transition layer of the copper-steel composite plate.

Description

technical field [0001] The invention belongs to the field of metal materials, and in particular relates to a nickel-based welding wire for a transition layer of a copper-steel composite plate, and also relates to a preparation method of the nickel-based welding wire for a transition layer of a copper-steel composite plate. Background technique [0002] Copper is a commonly used industrial material with excellent electrical and thermal conductivity and ductility. However, the low strength and high price of copper restrict its large-scale application. Steel has the advantages of high strength and low price. Combining copper and steel by explosive welding to form a copper-steel composite plate has the characteristics of excellent thermal conductivity and high strength, and is an ideal choice for engineering practice. [0003] Copper-steel composite panels will inevitably encounter problems with their butt connections during use. However, the thermal physical properties of co...

Claims

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Application Information

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IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/3033B23K35/40
Inventor 褚巧玲夏拓张林梁新宇刘严吴其霖赵鹏康王锵李继红张敏
Owner XIAN UNIV OF TECH
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