Handle fitter's hammer quality inspection report QB T 12903. Testing requirements.
1. Testing purpose: Fitter hammer is a commonly used hand tool, which is used for tapping, clamping, tightening and other operations in metal processing and assembly work. In order to ensure the quality and safety of fitter hammers, the state has formulated QB T 12903 standards, the quality inspection of fitter hammers has been standardized. This test report is intended in accordance with QB T 12903 standards, the quality of the fitter hammer provided is inspected, and its quality is evaluated. 2. Test basis: The basis of this test report is the national standard QB T 12903. Rules for Quality Inspection of Hand Tools, as well as other relevant standards and regulations. 3. Testing equipment and methods 1Equipment: hardness tester, torque tester, length measuring instrument, surface roughness measuring instrument, quality testing bench, etc. 2.Method: Visual inspection, size measurement, performance testing and other methods were used to detect the appearance, size, hardness, torque, wear resistance and other aspects of the fitter hammer.
Fourth, test item 1Appearance inspection: through visual inspection, observe whether the appearance of the fitter hammer has no obvious scratches, bruises, rust and other phenomena. 2.Dimensional inspection: Use a length measuring instrument to measure the length, width, thickness and other dimensions of the fitter hammer, and check whether it meets the standard requirements. 3.Hardness testing: The hardness of the fitter's hammer is measured by a hardness tester to ensure that it meets the hardness range specified in the standard. 4.Torque Detection: Measure the torque of a fitter's hammer using a torsion meter to evaluate its clamping and tightening capacity in actual use. 5.Abrasion resistance test: Test the wear resistance of the fitter's hammer by carrying out the wear resistance test on the quality testing table. 5. Suggestions and precautionsIn order to maintain the performance and service life of the fitter hammer, it is recommended to follow the following precautions during use: avoid excessive knocking and falling, regularly check whether its hardness and torque are normal, keep the fitter hammer clean and dry, etc.