It demonstrated that the experiment of hardness is likely to upset in the experiment of compression. Hardness tester indenter make matrix metal plastic deformation and viscous flow happen.
结果表明，硬度实验类似于压缩实验中的镦粗，硬度计压头可使金属基体发生塑性变形及粘性流动。
2
The company provides electronic double-digital display tension spring, compression spring, torsion spring testing device, prijector, sclerometer, and salt spray tester.
电子双数显拉簧、压簧、扭簧测试仪器、投影仪、硬度计、盐雾测试机等。
3
This grip is working with ring crush tester to test the column compression strength.