摘要
针对铝型材热挤压模具的断裂问题进行了失效原因分析及工艺分析 .利用回归正交设计法安排了 8组工艺实验 ,测试了钢材的断裂韧性 (KIC) ,冲击韧性及其硬度 ,并建立了上述指标与主要热处理工艺参数间的数学表达式 .在此基础上 ,对现行的生产工艺进行了改进 ,消除了热挤压模具的早期断裂 ,并使其使用寿命显著提高 .
By the disabled reasons and technics of hot_extrusion mold for aluminum Alsectional materials are analyzed. By recursive cross_section methods, 8 groups of technical experiments have been arranged to test the KIC, impacting roughness and hardness of steel. The formular between above parameters and heat_treatment technical parameters are established. Based on the achievement, the actual product technics to eliminate early rupture of hotextrusion mold have improved and the mold′s service life have been lasted.
出处
《焦作工学院学报》
2000年第5期373-376,共4页
Journal of Jiaozuo Institute of Technology(Natural Science)
