3种重载齿轮用渗碳钢工艺性对比试验研究  

Contrast Tests of Manufacturability of Carburized Steels for 3 Kinds of Heavy Duty Gears

作　　者：庄军[1] 黄星[1] 杨晟[1] 

机构地区：[1]南车戚墅堰机车车辆工艺研究所有限公司,江苏常州213011

出　　处：《机车车辆工艺》2011年第5期6-8,共3页Locomotive & Rolling Stock Technology

摘　　要：以国内外重载齿轮常用材料20Cr2Ni4、17CrNiMo6、18CrNi8为研究对象,进行了锻坯预备热处理后组织遗传消除对比试验、渗碳速度对比试验、内氧化倾向的工艺性对比试验,试验结果表明:常规预备热处理对3种材料锻造组织的细化均有显著的效果;20Cr2Ni4渗碳速度最慢;18CrNi8的内氧化倾向最为严重。17CrNiMo6是3种材料中工艺性最好的备选材料。Targeting 20Cr2Ni4,17CrNiMo6,18CrNi8 steels commonly used for heavy duty gears both at home and abroad, contrast tests of structural inheritance removal of forging stocks after pre - heat - treatment, carburizing speeds and internal oxidation inclinations are conducted. Testing results show that conventional pre - heat - treatment is effective to the refinement of forging structures of these 3 kinds of steels, while 20Cr2Ni4 steel indicates the slowest carburizing speed, 18CrNi8 steel shows the strongest internal oxidation tendency, and 17CrNiMo6 proves to be the best optional material.

关 键 词：重载 齿轮 渗碳淬火 工艺性对比 

分 类 号：TG162.73[金属学及工艺—热处理] TG156.81[金属学及工艺—金属学]