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Welding quality inspection of intermediate frequency welder [DCS11]
Dec 27,2023
How to control the quality of welding? This is an important issue we care much about.
Firstly, to test the welding quality.
There are two methods to detect the welding quality of intermediate frequency welder: visual inspection and destructive inspection.
Visual inspection is a visual inspection of various items, while destructive inspection generally goes by tear test.
If you use microscope photos for metallographic examination, it is necessary to break weldment to obtain the weld nugget parts and grinding corrosion. However, it is not enough to make a conclusion only by appearance test. Please carry out destructive test as soon as possible.
Destructive test is generally carried out by tearing the weld base metal to determine the weld quality (circular holes on one side, button residue on the other side). In addition, there is also the use of tensile tester to carry out tensile strength test.
Grading of solder joints:
The first grade is to bear relatively large static, dynamic load or alternating load. Joint failure will damage the personnel safety.
The second grade is to bear relatively large static, dynamic load or alternating load. The joint failure will lead to system errors, but not harm the personnel safety.
The third grade is usual joint that bears a small static or dynamic load.
Secondly, in order to ensure the quality of welding products, what measures should be taken?
1, electrode grinding:
with the increase of the number of welding,the electrode surface wear will get worse. The surface roughness of electrode will cause spatter and uneven surface of workpiece, which will affect the appearance of workpiece. Several common electrodes can be prepared and replaced according to the number of welding.
2, electrode overheating:
Electrode overheating will not only shorten the electrode life but also lead to uneven welding quality.
3, Pressure Detection:
The welding heat is greatly affected by the contact resistance between the electrode and the workpiece. The contact between the electrode and the workpiece is subject to the electrode pressure. Too much or insufficient electrode pressure will directly affect the welding result.
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Wuxi HAIFEI Intelligent Equipment Co., Ltd.
Wuxi HAIFEI Welding Equipment Co., Ltd.
Add: 28 Shuiyun Road, Yuecheng, Jiangyin, Jiangsu Province, China. (Postal Code: 214404)
Mobile: +86 18915302352
Email: wushijie@jshaifei.com