气体渗碳CAD软件的试验验证  

Experimental Verification of CAD Software for Gas Carburizing

作　　者：孙炳超 张戈[2] 钱初钧[2] 田禾 沙云卿 

机构地区：[1]盐城丰东热处理有限公司技术开发部,江苏大丰224100 [2]上海交通大学高温材料及高温测试开放实验室,上海200030

出　　处：《金属热处理》2001年第5期23-25,共3页Heat Treatment of Metals

摘　　要：用 2 0CrMnTi和 2 0CrMo钢制的试样 ,根据渗碳层深度分别为 1 2mm和 1 4mm的齿轮的技术要求 ,在装备有气体渗碳动态碳势控制CAD软件的渗碳炉上分别进行了试验 ,对模拟结果进行了验证 ,证实了该软件功能强劲、控制准确。其表面碳浓度(质量分数 )偏差 <0 0 5 % ;渗层内的碳浓度梯度曲线平滑 ,呈“S”型平台分布 ;渗层深度为 1 2mm和 1 4mm时 ,渗层深度的偏差 <0 0 5mm。WT5”BZ]According to technical requirement of 1.2mm and 1.4mm carburizing depth, steel 20CrMnTi and 20CrMo test pieces were carburized in Unicase furnace with a gas carburizing dynamic control CAD system.The results show that this system has a powerful function and control exactly,the deviation of surface carbon concentration is less than 0.05%(weight),carbon concentration gradient curve in carburized layer is smooth and shows “S” shape,the deviation of carburizing depth is less than 0 05mm when the carburizing depth is 1 2mm or 1 4mm.The experimental results are fit well with that designed by software system.

关 键 词：气体渗碳 CAD软件 表面浓度 碳浓度梯度 渗碳层深度 动态控制 

分 类 号：TG156.81[金属学及工艺—热处理] TP391.72[金属学及工艺—金属学]