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A stainless steel welding method

A welding method and stainless steel technology, applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of unsatisfactory, low strength, incomplete cleaning of the oxide layer on the surface of stainless steel, etc.

Active Publication Date: 2021-04-23
安徽众发食品机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Stainless steel refers to steel that is resistant to weak corrosive media such as air, steam, water, and chemically corrosive media such as acid, alkali, and salt. It is also called stainless acid-resistant steel. It is a common and commonly used material in modern people's lives. Most of the stainless steel items are welded. In order to speed up people's welding of stainless steel, people invented stainless steel welding methods for stainless steel. With the rapid development of science and technology, people have higher and higher requirements for stainless steel welding methods, resulting in Existing stainless steel welding methods can not meet people's requirements
[0003] The existing stainless steel welding method has certain disadvantages in use. First of all, the corrosion resistance of the stainless steel interface after welding by the existing stainless steel welding method is not strong. Over time, the stainless steel will become loose and affect the effect of stainless steel products. , it is easy to cause accidents. Secondly, the oxide layer on the surface of the stainless steel is not completely cleaned during the existing stainless steel welding. Bubbles are easily generated inside during welding, and the welding effect is not good. Finally, the existing stainless steel welding methods are not uniform, and welding often occurs. The final stainless steel has not been used for a long time and its strength is not high, which does not meet people's use requirements. For this reason, we propose a stainless steel welding method

Method used

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  • A stainless steel welding method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) First, send the stainless steel to be welded into the laser cleaning machine for cleaning. When the laser cleaning machine cleans the stainless steel, the laser power is 300W, the laser repetition frequency is 10kHz, and the turntable speed is 30° / h during laser cleaning.

[0028] (2) Use a cutting machine to cut the welding joint of stainless steel, and then use a thousand impeller to grind the cut welding groove. The cutting machine adopts a fiber laser cutting machine, the power of the laser is 1200W, and the cutting speed of the laser is 0.8m / min, the angle of one side of the welding groove after cutting is 35-40 degrees, and the welding groove is polished 3 times with a thousand impeller after cutting.

[0029] (3), send the polished stainless steel interface to the acetone solution for soaking, and then preheat the soaked stainless steel. The acetone soaking time is 25 minutes. When soaking, use a stainless steel wire brush to clean the welding groove and weld...

Embodiment 2

[0034] (1) First, send the stainless steel to be welded into the laser cleaning machine for cleaning. When the laser cleaning machine cleans the stainless steel, the laser power is 400W, the laser repetition frequency is 10kHz, and the turntable speed is 30° / h during laser cleaning.

[0035] (2) Use a cutting machine to cut the welding joint of stainless steel, and then use a thousand impeller to grind the cut welding groove. The cutting machine adopts a fiber laser cutting machine, the power of the laser is 1200W, and the cutting speed of the laser is 0.8m / min. After cutting, the angle of the single-sided groove of the welding groove is 35-40 degrees. After cutting, the thousand impeller is used to grind the welding groove 3 times.

[0036] (3), send the polished stainless steel interface to the acetone solution for soaking, and then preheat the soaked stainless steel. The acetone soaking time is 25 minutes. When soaking, use a stainless steel wire brush to clean the welding ...

Embodiment 3

[0041] (1) First, send the stainless steel to be welded into the laser cleaning machine for cleaning. When the laser cleaning machine cleans the stainless steel, the laser power is 500W, the laser repetition frequency is 10kHz, and the turntable speed is 30° / h during laser cleaning.

[0042](2) Use a cutting machine to cut the welding joint of stainless steel, and then use a thousand impeller to grind the cut welding groove. The cutting machine adopts a fiber laser cutting machine, the power of the laser is 1200W, and the cutting speed of the laser is 0.8m / min, the angle of one side of the welding groove after cutting is 35-40 degrees, and the welding groove is polished 3 times with a thousand impeller after cutting.

[0043] (3), send the polished stainless steel interface to the acetone solution for soaking, and then preheat the soaked stainless steel. The acetone soaking time is 25 minutes. When soaking, use a stainless steel wire brush to clean the welding groove and weldi...

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Abstract

The invention discloses a stainless steel welding method, which comprises the following steps: firstly send the stainless steel to be welded into a laser cleaning machine for cleaning; use a cutting machine to cut the welding joint of the stainless steel, and then use a flapper wheel to clean the welded slope after cutting. The mouth is polished; the polished stainless steel interface is sent to the acetone solution for soaking, and then the soaked stainless steel is preheated. In the stainless steel welding method described in the present invention, firstly, laser is used to clean the oxide layer and oil stain on the surface of stainless steel before welding. Welding, the phase ratio of the welding seam position of the welding sample is uniform, and the performance of the welding sample is good. Finally, the stainless steel is pretreated, which is conducive to the escape of diffusible hydrogen in the weld metal, avoiding hydrogen-induced cracks, and reducing welding. Stress, bringing better prospects for use.

Description

technical field [0001] The invention relates to the field of stainless steel welding, in particular to a stainless steel welding method. Background technique [0002] Stainless steel refers to steel that is resistant to weak corrosive media such as air, steam, water, and chemically corrosive media such as acid, alkali, and salt. It is also called stainless acid-resistant steel. It is a common and commonly used material in modern people's lives. Most of the stainless steel items are welded. In order to speed up people's welding of stainless steel, people invented stainless steel welding methods for stainless steel. With the rapid development of science and technology, people have higher and higher requirements for stainless steel welding methods, resulting in Existing stainless steel welding methods cannot meet people's requirements. [0003] The existing stainless steel welding method has certain disadvantages in use. First of all, the corrosion resistance of the stainless ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/02
CPCB23K31/02
Inventor 张蕴
Owner 安徽众发食品机械股份有限公司
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