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Tianjin ZhengYu International Trade Co.,Ltd
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Tianjin ZhengYu International Trade Co.,Ltd [China (Mainland)]
Business Type:Manufacturer, Trading Company
City: Tianjin
Province/State: Tianjin
Country/Region: China (Mainland)
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Casting the casting surface hardening of heat treatment of tempering process: machine tool casting surface hardening tempering heat treatment usually use induction heating or flame heating way. The main technical parameter is the surface hardness and local hardness and effective hardening layer depth. Hardness testing can use vickers hardness tester, also can use los's or surface rockwell hardness plan. Test force (ruler) of the selection and effective hardening layer depth and the surface hardness relevant. This involves three kind of hardness tester. Vickers hardness tester is to test the surface heat treatment of hardness of the important means, it can choose 0.5 ~ 100 kg test force, to 0.05 mm thick test thin surface hardening layer, the accuracy of it is the highest, can distinguish the surface hardness of heat treatment tiny difference. In addition, the effective is the depth of hardening layer by vickers hardness tester to test, so, to surface heat treatment processing or the use of heat treatment of workpiece surface unit, equipped with a vickers hardness tester is necessary. Surface rockwell hardness plan also is very suitable for testing hardening workpiece hardness, the surface rockwell hardness include three ruler can choose. Can test more than 0.1 mm depth effective sclerosis of all kinds of surface hardening workpiece. Although the surface rockwell hardness the precision of the plan without vickers hardness tester is high, but as a heat treatment plant quality management and qualified inspection means testing, have been able to meet the requirements. And it also has simple operation, easy to use, the price is low, measurement quickly, it can directly read hardness value and other characteristics, using the surface rockwell hardness on the surface of the project in heat treatment of quick and nondestructive workpiece by a test. This point for metal processing machinery manufacturing factory to have the important meaning. |
