| 渗碳和淬火工艺对风电齿轮组织的影响 |
| |
| 引用本文： | 刘俊伟,顾晓明,姜维杰,李小陶.渗碳和淬火工艺对风电齿轮组织的影响[J].热处理,2014(1):46-49. |
| |
| 作者姓名： | 刘俊伟 顾晓明 姜维杰 李小陶 |
| |
| 作者单位： | [1]上海森松化工成套装备有限公司,上海201323 [2]常州天山重工机械有限公司,江苏常州213125 |
| |
| 摘 要： | 研究了经不同工艺渗碳和淬火的18CrNiMo7-6钢齿轮马氏体针长度的变化。结果表明,18CrNiMo7-6钢齿轮渗碳扩散期碳势降至0.7%,渗碳后较快冷却至650℃保温4 h,在160℃硝盐浴中冷却,再风冷至约110℃水冷,其表面马氏体针长可以控制在12.5μm以内,并可省略高温回火而不影响齿轮的热处理质量。
|
| 关 键 词： | 马氏体针 碳势 硝盐淬火 |
Effect of Carburizing and Quenching Processes on Microstructure of Wind-driven Generator Gear |
| |
| LIU Junwei,GU Xiaoming,JIANG Weijie,LI Xiaotao.Effect of Carburizing and Quenching Processes on Microstructure of Wind-driven Generator Gear[J].Heat Treatment,2014(1):46-49. |
| |
| Authors: | LIU Junwei GU Xiaoming JIANG Weijie LI Xiaotao |
| |
| Affiliation: | 1 (1. Shanghai Morimatsu Chemical Equipment Co., Ltd., Shanghai 201323, China; 2. Changzhou Tianshan Heavy Machinery Co., Ltd., Changzhou 213125, Jiangsu China) |
| |
| Abstract: | The change of martensite needle length of 18CrNiMo7-6 steel gear was investigated after being carburized and quenched with variable processes. The results show that the martensite needle in case of 18CrNiMo7-6 steel gear may be controlled as long as up to 12.5μm by reducing the atmosphere carbon potential in diffusion stage of carburizing to 0.7%, relatively fast cooling from the carburizing temperature to 650℃ and holding for 4 h, and quenching in mohen nitrate-nitrite salt at 160℃ followed by wind cooling to about 110 ℃ and then water cooling. Furthermore, the high temperature tempering sequence can be omitted without an influence on the heat treatment quality of the gear. |
| |
| Keywords: | martensite needle carbon potential quenching in molten nitrate-nitrite salt |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
