Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A high-strength low-density steel welding process

A welding process and low-density technology, applied in the field of steel processing, can solve the problems of reducing the yield and oxidation of steel, and achieve the effects of improving the yield, reducing gaps, and reducing excessive temperature

Active Publication Date: 2022-03-25
广西天正钢结构有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is a low-density steel. Due to its excellent mechanical properties, low density, and corrosion resistance, it can be developed as a lightweight automobile body material with low energy consumption and low CO2 emissions. In the prior art, Fe-Mn-Al -When C-series low-density steel is welded, due to the high temperature, the surrounding unwelded parts may be oxidized, thereby reducing the yield rate of the steel after production

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
  • A high-strength low-density steel welding process
  • A high-strength low-density steel welding process
  • A high-strength low-density steel welding process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] see figure 1 , a high-strength low-density steel welding process, comprising the following steps:

[0042] S1. Derust the surface of the steel to be welded, rinse it with deionized water for 2-3 times, and then dry it to complete the pretreatment of the steel;

[0043] S2. Pre-processing the welded part of the steel, cutting off the corner of the welded part, and sticking the two steels to each other, so that a V-shaped groove is formed at the welded part of the steel;

[0044] S3. Place the anti-oxidation sticker 1 on the surface of the steel and place it outside the V-shaped groove, then place the electrode in the V-shaped groove, and then perform spot welding on the electrode to complete the welding of the steel.

[0045] see Figure 2-5 , the anti-oxidation patch 1 in S3 has a built-in storage chamber 2, and the inner wall of the built-in storage chamber 2 is dug with a release hole 3, and the inner wall of the release hole 3 is connected with a pair of rubber sea...

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 high-strength low-density steel welding process, which belongs to the technical field of steel processing. The temperature during welding can promote the thermal decomposition of calcium bicarbonate powder in the built-in storage cavity and generate a large amount of carbon dioxide gas. The increase of air pressure and temperature can make the thermally variable guide rope return to its high-temperature phase state, thereby lifting the rubber sealing sheet upwards, so as to promote the release of carbon dioxide. On the one hand, it can reduce The possibility of the external temperature of the steel is too high. On the other hand, the release of carbon dioxide can reduce the possibility of the steel being oxidized due to high temperature during the welding process. At the same time, the expansion of the attached guide ball can relieve the built-in magnetic The spherical magnetic shield makes the bottom of the anti-oxidation block stick closely to the steel, which can not only accelerate the thermal decomposition of the calcium bicarbonate powder, but also reduce the gap between the anti-oxidation block and the steel, thereby reducing the oxidation of the steel.

Description

technical field [0001] The invention relates to the technical field of steel processing, more specifically, to a high-strength low-density steel welding process. Background technique [0002] With the continuous and rapid development of China's economy, the number of motor vehicles continues to maintain a rapid growth trend. By the end of 2018, the number of motor vehicles in the country reached 327 million. Research shows that: the fuel consumption of automobiles has a linear relationship with the weight of the body, and other conditions remain unchanged. Under the premise that the vehicle weight is reduced by 10%, the fuel consumption can be reduced by 6-8%, and every 1L fuel consumption reduction will reduce the emission of 2.45kg of CO2. It can be seen that the impact of reducing vehicle exhaust emissions on the environment is very great. In addition, in the field of aerospace, the weight reduction of spacecraft is also of great significance. It not only reduces fuel con...

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 Patents(China)
IPC IPC(8): B23K20/02B23K20/24B23K20/26
CPCB23K20/023B23K20/026B23K20/26B23K20/24
Inventor 谢振宁
Owner 广西天正钢结构有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products