Treatment process for reducing burr production in electric resistance welding process of steel component

A processing technology and resistance welding technology, applied in the field of steel welding, can solve the problems of easy extrusion of burrs, spatter, and de-soldering at the weld, and achieve the advantages of avoiding a sharp increase in current density, reducing contact resistance and increasing contact area. Effect

Active Publication Date: 2021-11-30
安徽军明机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of resistance welding, welding quality problems that often occur include: solder joints burn through, weld through, virtual welding, desoldering, burrs, spatter, small solder joints, etc.
For example, Chinese patent CN2017109864648 discloses a welding method for carbon steel damping plates. In this technical process, carbon steel damping plates are continuously welded by resistance welding to form a continuous overall structure. However, during the welding process, the welding The burrs are easy to be squeezed out at the seams, and subsequent grinding is required, which is not only time-consuming and laborious, but also increases the production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A treatment process for reducing the production of burrs in the resistance welding process of steel components, the specific treatment process is as follows:

[0039] 1) Weigh 10g of copper sulfate pentahydrate and dissolve it in 200mL of deionized water, stir continuously until it is completely dissolved to obtain solution A, and then weigh 22.1g of potassium carbonate to prepare 230mL of potassium carbonate solution to obtain solution B, and mix solution A and solution B Transfer to two ceramic crucibles respectively, quickly mix solution B and solution A, put the mixed solution in a microwave oven, and heat it with 300W microwave radiation power for 5min. , acetone and ethanol, filtered and washed until neutral, and then dried at 60°C for 3 hours in air to obtain microspherical copper oxide;

[0040] 2) Weigh 2.5g of microspherical copper oxide, put it into 120mL of silver nitrate solution with a concentration of 0.1mol / L, stir vigorously at 800r / min for 10min to for...

Embodiment 2

[0044] A treatment process for reducing the production of burrs in the resistance welding process of steel components, the specific treatment process is as follows:

[0045]1) Weigh 15g of copper sulfate pentahydrate and dissolve it in 300mL of deionized water, stir continuously until it is completely dissolved to obtain solution A, and then weigh 33.2g of potassium carbonate to prepare 345mL of potassium carbonate solution to obtain solution B, and mix solution A and solution B Transfer to two ceramic crucibles respectively, quickly mix solution B and solution A, put the mixed solution in a microwave oven, and heat it with 300W microwave radiation power for 8min. , acetone and ethanol, filtered and washed until neutral, and then dried at 65°C for 5 hours in air to obtain microspherical copper oxide;

[0046] 2) Weigh 4.5g of microspherical copper oxide, put it into 150mL of silver nitrate solution with a concentration of 0.6mol / L, stir vigorously at 1000r / min for 15min to for...

Embodiment 3

[0050] A treatment process for reducing the production of burrs in the resistance welding process of steel components, the specific treatment process is as follows:

[0051] 1) Weigh 18g of copper sulfate pentahydrate and dissolve it in 360mL of deionized water, stir continuously until it is completely dissolved to obtain solution A, and then weigh 39.8g of potassium carbonate to prepare 415mL of potassium carbonate solution to obtain solution B, and mix solution A and solution B Transfer to two ceramic crucibles respectively, quickly mix solution B and solution A, put the mixed solution in a microwave oven, and heat it with 400W microwave radiation power for 8min. , acetone and ethanol, filtered and washed until neutral, and then dried at 70°C for 6 hours in air to obtain microspherical copper oxide;

[0052] 2) Weigh 5.0g of micro-spherical copper oxide, put it into 180mL of silver nitrate solution with a concentration of 0.8mol / L, stir vigorously at 1200r / min for 20min to f...

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Abstract

The invention discloses a treatment process for reducing burr production in the electric resistance welding process of a steel component, and relates to the technical field of steel welding. The method is provided for the to-be-welded steel component, and the technical key point is that a middle layer is formed at the to-be-welded part of the steel component through shot blasting, so that the roughness of a contact surface is reduced, contact resistance is reduced accordingly, and therefore generation of burrs in the electric resistance welding process is reduced; and according to the specific treatment process, silver is loaded on a spherical micron copper oxide surface through electro-deposition, composite powder is formed, and a composite powder layer is formed on the to-be-welded part of the steel component through shot blasting treatment. According to the treatment process, the shot blasting treatment method is adopted, the composite powder layer is formed on the surface of the steel component, the composite powder layer serves as the middle layer of the to-be-welded steel component, the roughness of the contact surface can be effectively reduced when the steel component is welded, the contact resistance is reduced, accordingly, the burrs are reduced, and the attractiveness of a weld joint after the steel component is welded is improved.

Description

technical field [0001] The invention belongs to the technical field of steel welding, and in particular relates to a treatment process for reducing burr production in the resistance welding process of steel components. Background technique [0002] Resistance welding is a method of combining the workpieces and applying pressure through the electrodes, and using the resistance heat generated by the current passing through the contact surface of the joint and the adjacent area for welding. Resistance welding is a method in which electric current flows through the contact surface of the workpiece and the adjacent area to heat it to a molten or plastic state to form a metal bond. There are four main resistance welding methods, namely spot welding, seam welding, projection welding and butt welding. [0003] Resistance welding has the advantages of high welding efficiency, less material required, simple equipment, and can be applied to large structures through continuous welding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24C1/00
CPCB24C1/00
Inventor 陶宗明刘军王辅成周卫兵
Owner 安徽军明机械制造有限公司
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