Handle the test report of welding tongs.
1. Overview. Welding tongs are tools used for manual arc welding, and their quality is directly related to welding quality and worker safety. In order to ensure the quality and safety of welding tongs, welding tongs need to be inspected. This report will introduce the test items, test methods, test standards and test results of welding tongs.
Second, the test items.
1.Insulation resistance.
2.Dielectric strength of insulation.
3.Basic parameters.
4.Electrode clamping strength.
5.Appearance.
6.Structure & Operation.
3. Detection methods.
1.Insulation resistance: A high-precision megohmmeter is used to measure the insulation resistance of the welding tong to judge its insulation performance.
2.Dielectric strength of insulation: The dielectric strength test of the welding tongs is carried out by high-voltage test equipment to test its insulation performance at high voltage.
3.Basic parameters: Measure the basic parameters such as length, width, height, and weight of the welding tong to determine whether it meets the design requirements.
4.Welding rod clamping strength: By simulating the welding process, the welding rod clamping strength of the welding tong is tested to ensure that it will not loosen or fall off during the working process.
5.Appearance: Check the surface quality, coating quality, identification, etc. of the welding tong to ensure that its appearance meets the relevant standards.
6.Structure and operation: check the structure of the welding tong to ensure that its structure is reasonable, safe and reliableAt the same time, the operation performance of the welding tong is checked to ensure that it is easy and flexible to operate.
Fourth, testing standards.
1.Insulation resistance: The insulation resistance of the welding tongs should be greater than 100m.
2.Dielectric strength of insulation: the welding tong is kept at a voltage of 1500V min for 1min, without breakdown, flashover and other phenomena.
3.Basic parameters: The basic parameters of the welding tong should meet the design requirements, and the length, width, height, weight, etc. should meet the relevant standards.
4.Welding rod clamping strength: The welding rod clamping strength of the welding tong should be greater than or equal to the design requirements to ensure that it will not loosen or fall off during the welding process.
5.Appearance: The surface quality, coating quality, and identification of the welding tong should meet the relevant standards, and there should be no defects and flaws.
6.Structure and operation: The structure of the welding tong should be safe and reliable, easy to operate, flexible and ergonomic.