Butt welding material and welding method for TA1-Q235 composite boards

A TA1-Q235, welding method technology, applied in the direction of welding/cutting medium/material, welding equipment, welding medium, etc., can solve the problems that TA1-Q235 layered composite boards cannot be directly welded and welded, and achieve excellent butt joints, The preparation process is simple, and the effect of improving the plasticity and toughness of the weld

Active Publication Date: 2022-01-21
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a material for butt welding of TA1-Q235 composite boards, which solves the problem that TA1-Q235 layered composite boards cannot be welded butt directly

Method used

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  • Butt welding material and welding method for TA1-Q235 composite boards
  • Butt welding material and welding method for TA1-Q235 composite boards
  • Butt welding material and welding method for TA1-Q235 composite boards

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preparation example Construction

[0051] The preparation method of powder for laser cladding, the specific steps are as follows:

[0052] Step 1: Weigh 40% of Cu powder, 20% of V powder, 20% of Ni powder, 10% of Ag powder, and 10% of B powder according to mass percentage, and the sum of the mass percentages of the above components is 100%;

[0053] Step 2: Mix the powders of the raw materials in step 1, vacuum melt them, and use gas atomization to make powders; wherein, N 2 As an atomizing gas, the atomizing pressure is 6-8MPa, and the superheat of the melt is kept between 100 and 150°C during the atomizing process;

[0054] Step 3: performing particle size screening on the atomized alloy powder, so that the screened alloy powder is within the particle size range of 25-53 μm;

[0055] Step 4: vacuum pack the prepared powder for use.

[0056] The preparation method of copper-based flux-cored welding wire for TIG welding, the specific steps are as follows:

[0057] Step 1: Weigh 20-30% of Ag powder, 15-25% of...

Embodiment 1

[0074] Laser cladding powder preparation:

[0075] Step 1: Weigh 30% of Cu powder, 30% of V powder, 10% of Ni powder, 20% of Ag powder, and 10% of B powder according to mass percentage, and the sum of the mass percentages of the above components is 100%;

[0076] Step 2: Mix the alloy powders of the raw materials in step 1, melt them in vacuum, and make powder by gas atomization. Among them, with N 2 As an atomizing gas, the atomizing pressure is 6MPa, and the superheat of the melt is kept between 100 and 150°C during the atomizing process;

[0077] Step 3: Perform particle size screening on the atomized alloy powder, so that the screened alloy powder is within the particle size range of 25-53 μm.

[0078] Step 4: vacuum pack the prepared powder for use.

[0079] Flux cored wire preparation:

[0080] Step 1: Weigh 30% of Ag powder, 15% of V powder, 15% of Nb powder, 10% of Ni powder, 10% of Al powder, 10% of Co powder, 10% of B powder, and one of the above components by ma...

Embodiment 2

[0090] Laser cladding powder preparation:

[0091] Step 1: Weigh 40% of Cu powder, 20% of V powder, 20% of Ni powder, 10% of Ag powder, and 10% of B powder according to mass percentage, and the sum of the mass percentages of the above components is 100%;

[0092] Step 2: Mix the alloy powders of the raw materials in step 1, melt them in vacuum, and make powder by gas atomization. Among them, with N 2 As an atomizing gas, the atomizing pressure is 6MPa, and the superheat of the melt is kept between 100 and 150°C during the atomizing process;

[0093] Step 3: Perform particle size screening on the atomized alloy powder, so that the screened alloy powder is within the particle size range of 25-53 μm.

[0094] Step 4: vacuum pack the prepared powder for use.

[0095] Flux cored wire preparation:

[0096] Step 1: Weigh respectively 20% of Ag powder, 25% of V powder, 20% of Nb powder, 20% of Ni powder, 5% of Al powder, 5% of Co powder, 5% of B powder, and one of the above compon...

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Abstract

The invention discloses a butt welding material and welding method for TA1-Q235 composite boards. The material comprises a laser cladding layer and a welding material for a copper base layer for TIG welding; a raw material of the laser cladding layer is laser cladding powder, wherein the laser cladding powder is composed of the following components of 30%-40% of Cu powder, 20%-30% of V powder, 10%-20% of Ni powder, 10%-20% of Ag powder and 5%-10% of B powder; a raw material of the copper-based layer for TIG welding is a copper-based flux-cored wire for TIG welding, wherein powder is composed of the following components of 20%-30% of Ag powder, 15%-25% of V powder, 15%-25% of Nb powder, 10%-20% of Ni powder, 5%-10% of Al powder, 5%-10% of Co powder and 5%-10% of B powder; and welding skin is a copper belt. The welding material solves the problem that the TA1-Q235 layered composite boards cannot be directly welded and butted. The invention further discloses a welding method for TA1-Q235 composite boards.

Description

technical field [0001] The invention belongs to the technical field of metal material welding, and in particular relates to a material for butt welding of TA1-Q235 composite plates, and also relates to a welding method using the material for TA1-Q235 composite plates. Background technique [0002] Due to the large difference in thermophysical properties between titanium and steel, and the reaction between the two will generate brittle Fe-Ti intermetallic compounds, the connection method is usually based on solid phase welding. Such as friction welding, explosive welding, diffusion welding. Among them, explosive welding can prepare a large-area titanium-steel composite plate structure. The composite plate has both the excellent corrosion resistance of titanium and the high strength of steel, and is favored by the petrochemical industry. However, when preparing pipelines, pressure vessels, etc., it is inevitable to involve the butt connection of composite plates. During the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/362B23K35/02B23K9/32
CPCB23K35/302B23K35/362B23K35/0266B23K9/32
Inventor 褚巧玲张林夏拓张敏李继红赵鹏康
Owner XIAN UNIV OF TECH
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