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A kind of active agent for stainless steel mag welding and using method

An active agent, stainless steel technology, applied in welding medium, welding equipment, welding equipment and other directions, can solve the problem of stainless steel welding and other problems, and achieve the effect of improving impact performance

Active Publication Date: 2016-03-23
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the active agent in the above-mentioned patent is suitable for the welding of aluminum alloys, but not for the welding of stainless steel

Method used

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  • A kind of active agent for stainless steel mag welding and using method
  • A kind of active agent for stainless steel mag welding and using method
  • A kind of active agent for stainless steel mag welding and using method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The welding steps in this embodiment: the first step: the active agent is prepared according to the weight ratio to prepare the active agent for stainless steel MAG welding, wherein: its components are distributed by weight percentage, respectively Cr 2 O 3 : 45%, MgO: 22%, TiO 2 : 31%, MgCO 3 :2%. After fully mixing, it is mixed with the organic solution and stirred into a paste;

[0062] The second step: carefully polish the base metal with a stainless steel wire brush until the bright metal is exposed, and wipe the surface of the workpiece with acetone to remove the surface oil;

[0063] The third step: apply the paste active agent prepared in the first step on the surface of the welding workpiece to cover the original metallic luster;

[0064] Step 4: Air dry naturally or blow it to the surface of the workpiece with a blower or air duct, and perform MAG welding after the organic solution is volatilized.

[0065] The machine solution used is acetone or 1% hydrox...

Embodiment 2

[0068] The welding steps in this embodiment: the first step: the active agent is prepared according to the weight ratio to prepare the active agent for stainless steel MAG welding, wherein: its components are distributed by weight percentage, respectively Cr 2 O 3 : 44%, MgO: 23%, TiO 2 : 32%, MgCO 3 :1%. After fully mixing, it is mixed with the organic solution and stirred into a paste;

[0069] The second step: carefully polish the base metal with a stainless steel wire brush until the bright metal is exposed, and wipe the surface of the workpiece with acetone to remove the surface oil;

[0070] The third step: apply the paste active agent prepared in the first step on the surface of the welding workpiece to cover the original metallic luster;

[0071] Step 4: Air dry naturally or blow it to the surface of the workpiece with a blower or air duct, and perform MAG welding after the organic solution is volatilized.

[0072] The machine solution used is acetone or 1% hydrox...

Embodiment 3

[0075] The welding steps in this embodiment: the first step: the active agent is prepared according to the weight ratio to prepare the active agent for stainless steel MAG welding, wherein: its components are distributed by weight percentage, respectively Cr 2 O 3 : 43%, MgO: 22%, TiO 2 : 33%, MgCO 3 :2%. After fully mixing, it is mixed with the organic solution and stirred into a paste;

[0076] The second step: carefully polish the base metal with a stainless steel wire brush until the bright metal is exposed, and wipe the surface of the workpiece with acetone to remove the surface oil;

[0077] The third step: apply the paste active agent prepared in the first step on the surface of the welding workpiece to cover the original metallic luster;

[0078] Step 4: Air dry naturally or blow it to the surface of the workpiece with a blower or air duct, and perform MAG welding after the organic solution is volatilized.

[0079] The machine solution used is acetone or 1% hydroxye...

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Abstract

The invention relates to an active agent for MAG welding of stainless steel and a using method. The active agent is formed by mixing Cr2O3, MgO, TiO2 and MgCO3 powder particles with the particle sizes of 10 to 80 micrometers and purity of 95% to 99%. According to weight proportion, the raw materials include 40% to 45% of Cr2O3, 20% to 25% of MgO, 30% to 35% of TiO2 and 0% to 10% of MgCO3. The using method includes mixing the mixture mixed fully with organic solution and stirring into paste; grinding base material through a stainless steel wire brush carefully until bright metal is exposed, and removing the greasy dirt on the surface by wiping the surface of a workpiece through acetone; coating the active agent paste on the surface of the welded workpiece to coat the original metal brightness optimally; drying naturally or utilizing an air blower or air channel to blow the surface of the workpiece, and performing MAG welding after the organic solution is volatilized. Welding joint forming and organizing are optimized, welding joint penetration is increased, and welding joint performance is improved.

Description

technical field [0001] The invention relates to the field of material processing engineering, in particular to an active agent for stainless steel MAG welding and a method for using the same. Background technique [0002] Stainless steel has the advantages of good plasticity, toughness, corrosion resistance, etc. It is increasingly widely used in chemical containers, aerospace, marine vehicles, power electronics and other industries, and has become one of the most commonly used metal materials. However, stainless steel has low thermal conductivity, large linear expansion coefficient and large welding deformation. [0003] When multi-layer multi-pass welding is used for stainless steel welding, due to the effect of multiple welding thermal cycles, it is easy to cause deformation of the plate, and the structure and properties are affected. Therefore, if we can find a welding that can improve the penetration of the weld and reduce the heat input at the same time. It will be a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/36
CPCB23K9/173B23K35/3601B23K35/362
Inventor 路浩石中年王心红张洪涛刘胜龙汪认迟建波
Owner CRRC QINGDAO SIFANG CO LTD