Active flux for A-TIG welding

A technology of active flux and activator, which is applied in the field of active flux for stainless steel, A-TIG welding, active flux for low carbon steel and stainless steel and stainless steel A-TIG welding, which can solve the problem of improving the performance of weld metal without making effective Improvement, the improvement of weld metal performance does not help much, endangers the health of operators and other problems, and achieves the effects of excellent weld metal performance, no pollution to the environment, and reduction of toxic gases

Inactive Publication Date: 2017-10-20
HAINING RUIAO METAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most important thing for A-TIG is the active flux. At present, there have been many researches on active fluxes for different materials at home and abroad. The main components are oxides, halides and fluorides, which makes the existing active fluxes exist. The following disadvantages: 1. Toxic gas or heavy metal hazards are produced, such as patented technology: the active flux in 2012102005570 is mainly Mn...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1 The experimental material is stainless steel 316 and 16Mn dissimilar welding, the plate thickness is 9mm, the form of the breach is type I butt joint, and the gap between the breaches is 0mm.

Embodiment 2

[0020] Example 2 The experimental material is welded stainless steel 316, the thickness of the plate is 10mm, the form of the break is Type I butt joint, and the gap between the breaks is 0mm.

Embodiment 3

[0021] Example 3 The experimental material is 16Mn welding, the thickness of the plate is 8mm, the form of the break is Type I butt joint, and the gap between the breaks is 0mm.

[0022] The ingredients of Examples 1-3 are shown in Table 1.

[0023] The composition (%wt) of active flux of table 1

[0024] Element

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PUM

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Abstract

The invention relates to an active flux for A-TIG welding. The active flux for A-TIG welding comprises the following components in percentages by mass: 25-40% of SiO2, 10-25% of Cr2O3, 15-25% of TiO2, 5-10% of B2O3, 4-6% of Al2O3, 4-6% of MnO, 1-10% of Fe2O3, 0.5-2% of Ti, 1-5% of Cr and 1-5% of Si, wherein the sum of Cr2O3 and Fe2O3 is less than 20%; the sum of Al2O3 and MnO is less than 10%; and the sum of Cr2O3 and TiO2 is less than 40%. The active flux can be used in stainless steel, low-carbon steel and welding in the stainless steel and the low-carbon steel, and the depth of fusion can be increased; under the condition of the same welding parameters, surface forming is good, the depth of fusion is increased by 2-3 times, thorough welding of a gapless butt joint with the thickness of 10-12 mm can be implemented at a time, a welding technology is greatly simplified, and the production efficiency is improved; and meanwhile, the corrosion resistance and the mechanical property of weld metal can be improved, and a welding environment is good in a welding process.

Description

technical field [0001] The invention relates to an active flux for A-TIG welding, which belongs to the field of welding materials, in particular to an active flux suitable for A-TIG welding of stainless steel, low carbon steel, and stainless steel and stainless steel. Background technique [0002] A-TIG welding (Activating Flux TIG) as an efficient new welding method has attracted the attention of scholars at home and abroad. The welding method refers to coating a thin layer of surfactant on the surface of the welding plate, thereby greatly improving the welding. method of penetration. The most important thing for A-TIG is the active flux. At present, there have been many researches on active fluxes for different materials at home and abroad. The main components are oxides, halides and fluorides, which makes the existing active fluxes exist. The following disadvantages: 1. Toxic gas or heavy metal hazards are produced, such as patented technology: the active flux in 2012102...

Claims

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Application Information

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IPC IPC(8): B23K35/362
CPCB23K35/362
Inventor 朱光远王银柏贝思佳
Owner HAINING RUIAO METAL TECH CO LTD
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