Bearing the main parameters of heat treatment technology and technical instructions

Bearing as an important parts, machinery and equipment in order to improve the quality of bearing concrete performance, so many vendors will heat treatment process was carried out on the bearing, the bearing of the heat treatment process parameters and technical instructions is also very important, we must through concrete understanding to better improve the quality of bearing use, China bearing network summarize experience tell you about some knowledge bearing the main parameters of heat treatment technology and technical index. Heat treatment process parameter values are as follows: is the fire, the heating temperature is 860 - 880 ℃, holding time, 150 - 180 min, cooling air cooling; Quenching heating temperature is 820 - 840 ℃, holding time, 90 - 120 min, cooling water; Tempering, the heating temperature is 560 - 590 ℃, holding time, 120 - 150 min, cooling air cooling; Technical indicators for GK1600 - after heat treatment NA, GKH1250 - NK, GKH1250 - NW models such as spindle and effective cross section size, and the recent production to a certain extent, so choosing as the test object. In this kind of spindle parts production process, by changing the process parameters for the corresponding experiment, track after processing data, inspection in the form of production and test the feasibility of the modified process parameters. Three models of the main shaft parts processing records hardness value is as follows: after GK1600A. 3 - After six main shaft, quenching hardness values ( HB） 520, half martensite hardness values ( HB） 391, half martensite hardness values ( HB） 265; GK1250K。 3 - Four main shaft, after quenching hardness values ( HB） 530, half martensite hardness values ( HB） 391, half martensite hardness values ( HB） 288; GK1250W。 3 - Four main shaft, after quenching hardness values ( HB） 570, half martensite hardness values ( HB） 391, half martensite hardness values ( HB） 284; 【 Warm prompt. 【 The bearing network] Some information from the Internet, and strive to secure timely, accurate, aims to deliver more information, does not represent our views to its approval or responsibility for their authenticity. If this net reprint information involves the issues such as copyright, please contact with this net. Tel: 0571 - 81630205. Tags: production and processing