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| Application of improved PAW+TIG combined welding process in oils and fats equipment |
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| DOI： |
| KeyWord:PAW+TIG improved process oils and fats equipment welding speed S30408 |
| FundProject: |
| Author Name | Affiliation | | LIU Yuyang1,2,WANG Guodong1,2, HUANG Yongna1,2, ZHANG Chunpeng1,2 ,
CHU Hongjun1,2, SUN Jienan1,2, ZHAO Shuchao1,2,YAO Junshuang1,2 | 1.Shandong Chemsta Machinery Manufacturing Co. , Ltd. , Jining 272000, Shandong, China
2.Jining Machinery Design and Research Institute Co. , Ltd. , Jining 272000, Shandong, China |
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| Abstract: |
| Austenitic stainless steel is widely used in oils and fats equipment. In order to obtain stable and high-quality austenitic stainless steel welds with high efficiency and low cost, on the basis of combined plasma arc welding(PAW)+tungsten inert gas(TIG) welding, the improved PAW+TIG combined welding process of PAW backing welding with filler wire +TIG pulsed welding to cover weld face was put forward. The S30408 stainless steel with 5 mm thickness was taken as an example for welding test, and the weld was tested by non-destructive test, tensile test and bending test. In addition the implementation factors of improved PAW+TIG combined welding process were summarized. The results showed that the appearance of the weld obtained by the improved PAW+TIG combined welding process was good with no welding deformation, the performance met the requirements of the process, and the welding speed was effectively improved. Applying the welding process to weld stainless steel could extend the life of oils and fats equipment and effectively reduce consumption indicators of engineering projects. |
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