Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Auxiliary welding active agent and novel nut projection welding method for enhancing welding penetration

An active agent and nut technology, applied in the field of resistance welding, can solve the problems affecting the assembly quality of the entire workpiece or even the whole vehicle, short welding time of nut projection welding, and small nucleation size, so as to improve welding consistency, short welding time, Effect of increasing weld nugget penetration

Active Publication Date: 2020-01-10
XI'AN PETROLEUM UNIVERSITY
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the very short welding time of the nut projection welding, the nucleation size is small, and there are multiple bumps on a nut, it is very easy to have false welding, spatter and inconsistent multi-bump welding, which directly affects the entire workpiece or even the entire vehicle in severe cases. Assembling quality, workers are sometimes required to perform secondary repair welding, which affects the assembly process

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
  • Auxiliary welding active agent and novel nut projection welding method for enhancing welding penetration
  • Auxiliary welding active agent and novel nut projection welding method for enhancing welding penetration
  • Auxiliary welding active agent and novel nut projection welding method for enhancing welding penetration

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] A kind of preparation method of welding auxiliary active agent, by mass percentage, its preparation steps are as follows:

[0027] 1) The powder and the binder are mixed according to the mass ratio of 1:4~6 to form the active agent;

[0028] 2) Dilute the active agent in step 1) with acetone at a ratio of 1.5 to 3:1;

[0029] The powder includes the following components by mass percentage: 50%-65% of carbon black, 4%-10% of CaF2, 16%-25% of TiO2, and 15%-27% of Mn.

[0030] A novel nut projection welding method for increasing welding penetration, comprising the following steps:

[0031] 1) Preparation of auxiliary active agent;

[0032] 2) Place the prepared active agent in a special active agent box;

[0033] 3) Install the active agent box on the nut conveyor conveying structure;

[0034] 4) When performing nut projection welding, the nut passes through the activator box during the conveying process, so that the nut bumps are dipped into the activator.

Embodiment 1

[0036] Weigh the powder according to the following mass percentages: carbon black 50%, CaF2 5%, TiO2 18%, Mn 22%. After mixing the powder evenly, mix it with the binder at a ratio of 1:4 to 6 to form an active agent, then dilute the active agent with acetone at a ratio of 1.5 to 3:1 for nut projection welding.

Embodiment 2

[0038] Weigh the powder according to the following mass percentages: carbon black 56%, CaF2 6%, TiO2 17%, Mn 21%. After mixing the powder evenly, mix it with the binder at a ratio of 1:4 to 6 to form an active agent, then dilute the active agent with acetone at a ratio of 1.5 to 3:1 for nut projection welding.

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 relates to an auxiliary welding active agent and a novel nut projection welding method for enhancing welding penetration. The auxiliary welding active agent comprises the following steps: 1) first, blending and forming the active agent by powder and a binder in a mass ratio of 1: (4-6), and then diluting the active agent by using acetone at a proportion of 1(1.5-3): 1, wherein the powder is prepared from the following components in percent by mass: 50-60% of carbon black, 4-10% of CaF2, 16-25% of TiO2 and 15-27% of Mn; 2) putting the prepared active agent in a special active agent box; 3) mounting the active agent box on a conveying structure of a nut conveyor; and 4) carrying out nut projection welding, wherein a nut passes the active agent box in a conveying process, so that the active agent is dipped in nut projection welding. The welding penetration can be improved greatly, the consistence of multi-emboss welding of the nut is improved, forming defects such as pseudosoldering and splashing are improved, and high-efficiency nut projection welding is achieved. The method reduces the probability of pseudo soldering greatly, cancels a repair welding step, improves the welding efficiency, reduces the energy consumption, saves the cost, and improves the welding quality of nut projection welding greatly.

Description

technical field [0001] The invention belongs to the technical field of resistance welding, and in particular relates to a welding auxiliary activator and a novel nut projection welding method for improving welding penetration. Background technique [0002] Nut projection welding is a special form of spot welding and a key technology in the body-in-white manufacturing process. It is widely used in automobile chassis, body A-pillar, B-pillar, gearbox, engine and other parts. According to statistics, on average, the cab of each car requires more than 100 bolts and nuts of various specifications to be projection welded. Nuts and bolts can be assembled by more than 90% of the body through projection welding. Nut projection welding has a great impact on the quality of vehicle assembly. big impact. Therefore, it is of great significance to develop a new nut projection welding method to improve the welding penetration. [0003] Due to the very short welding time of the nut project...

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): B23K35/36B23K11/14
CPCB23K11/14B23K35/36
Inventor 邢晓芳韩佩周勇路浩
Owner XI'AN PETROLEUM UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com