Explanation of terms in test of hammer impact testing machine

As an instrument engineer, I just entered the industryImpact testing machineDuring the impact test, we will see many test terms and feel that we can’t start. The following engineers from our company have explained the terms we came into contact with in detail.

Keyword description of the falling hammer: median failure mass (mean failure mass) The drop hammer falls from a certain height to the sample, causing 50% of the mass to fall onto the sample, causing 50% of the sample to break, the energy that causes 50% of the sample to break is equal to the product of the falling height and the median failure mass (constant height method), or equal to the product of the constant mass and the median failure height (constant mass method). The impact height is from the top of the hammer head to the upper surface of the sample. Under the failure of test specimen, cracks or cracks caused by impact seen by naked eyes are hammeredImpact testing machineTechnical parameters: Impact energy: 300J Impact height: 2m Hammer combination mass: 15KG±0.1% Punch specification: A R=10mm B R=20mm C R=5mm BB R=30mm The deviation between the impact center and the fixture center is not greater than 2mm Electric kowtow lifting mechanism: lifting force 20kgf The traction electromagnet suction force is not less than 20kgf Pipe V-shaped pallet 200×300×25mm3 plate ring-shaped pallet Ф40±1.0mmФ80±2.0mmФ130±2.5mm 　　Specific size: Diameter 20-400mm Impact tester configuration: one host computer set one printer one control program CD One pneumatic fixture Set One matching tool set

RelatedMaterial testing machineTechnical information: Jinan Hengsi Shanda Instrument Network