Unlock instant, AI-driven research and patent intelligence for your innovation.

Medium and large-diameter drawn arc stud welding induction auxiliary arc striking agent and arc striking method thereof

An arc-starting agent, large-diameter technology, applied in arc welding equipment, welding equipment, welding medium, etc., can solve problems such as difficulty in arc-starting, achieve good weld metallographic structure, improve weld quality, and simple operation.

Active Publication Date: 2020-03-03
NANJING UNIV OF SCI & TECH
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an auxiliary arc starting method that uses arc starting agent to increase the electron emission at the moment of arc starting for the problem of difficult arc starting when medium and large diameter steel studs are welded with steel plates. method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Medium and large-diameter drawn arc stud welding induction auxiliary arc striking agent and arc striking method thereof
  • Medium and large-diameter drawn arc stud welding induction auxiliary arc striking agent and arc striking method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take a Q235 stud with a diameter of 18mm and a 14mm thick plate as an example.

[0022] First, prepare a special arc ignition agent before welding. The arc ignition agent composition is: 10% TiO 2 , 15% Fe 3 o 4 , 15% FeO, 5% Fe powder, 2% K 2 CO 3 , 3% Na 2 CO 3 , 50% Al powder, and dry the arc starter. Next, mechanically polish the surface of the stud 1 and the base material 3 to remove rust and oil stains, clean the surface of the base material 3 and the stud 1 with acetone solution, wipe them with alcohol, and quickly dry them. Spread the prepared arc ignition agent 4 evenly in a ring shape on the area to be welded on the base material 3, and reserve the arc ignition position, assemble the ceramic ring 2, clamp the stud 1, place the base material 3 horizontally, and place the stud 1 The tapered end of the column 1 is downward and vertical to the base material 3, so that the stud 1 exerts a certain pressure on the base material 3; start the stud welding machin...

Embodiment 2

[0024] Take a Q235 stud with a diameter of 22mm and a thick plate of 18mm as an example.

[0025] First, prepare a special arc ignition agent before welding. The arc ignition agent composition is: 13% TiO 2 , 15% Fe 3 o 4 , 10% FeO, 5% Fe powder, 2% K 2 CO 3 , 3% Na 2 CO 3 , 52% Al powder, and dry the arc starter. Next, mechanically polish the surface of the stud 1 and the base material 3 to remove rust and oil stains, clean the surface of the base material 3 and the stud 1 with acetone solution, wipe them with alcohol, and quickly dry them. Spread the prepared arc ignition agent 4 evenly in a ring shape on the area to be welded of the base metal 3, and reserve the arc ignition position. Assemble the ceramic ring 2, clamp the stud 1, place the base material 3 horizontally, put the tapered end of the stud 1 downward, and vertically base the base material 3, so that the stud 1 exerts a certain pressure on the base material 3; start the screw Post welder for welding. It ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a medium and large-diameter stud welding induction auxiliary arc striking agent and specifically relates to a medium and large-diameter drawn arc stud welding induction auxiliary arc striking agent. The medium and large-diameter drawn arc stud welding induction auxiliary arc striking agent comprises 10%-15% of TiO2, 10%-15% of Fe3O4, 10%-15% of FeO, 5% of Fe powder, 2%-3% of K2CO3, 3% of Na2CO3, and the balance Al powder by mass percentage. Through the medium and large-diameter drawn arc stud welding induction auxiliary arc striking agent, the problem that arc drawing is difficult in the stud welding process can be solved, and arc drawing is moth during medium and large-diameter stud welding. The medium and large-diameter stud welding induction auxiliary arc striking agent has the advantages that operation is easy, the effect is obvious and the like.

Description

technical field [0001] The invention relates to an auxiliary arc starting method for stud welding, in particular to an induced auxiliary arc starting agent and an arc starting method for medium and large diameter stud drawn arc stud welding, belonging to the field of welding. Background technique [0002] Arc stud welding is a welding method for welding screw-shaped or columnar metal to the surface of a metal sheet. The basic principle is to ignite the arc between the stud to be welded and the workpiece. When the stud and the workpiece are heated to a suitable temperature, under the action of external force, the stud is sent into the welding pool on the workpiece to form a welded joint. In the processing and fixing of studs in the workpiece industries such as vehicles, shipbuilding, boilers, steel structures, construction, electronics, instruments, and medical equipment, the traditional method of thread fastening is generally used, but this method requires threading on the b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/20B23K35/28B23K9/067
CPCB23K9/0675B23K9/20B23K35/288
Inventor 张德库王恒王克鸿周琦冯曰海黄俊彭勇欧婷
Owner NANJING UNIV OF SCI & TECH