The cold box plus process it discussed in principle When the proper heating to the corebox is given (65℃±2℃). the binder lever can be saved, also the core strength and surface hardnessare imtroved, the moisture...The cold box plus process it discussed in principle When the proper heating to the corebox is given (65℃±2℃). the binder lever can be saved, also the core strength and surface hardnessare imtroved, the moisture-sensitvity is reduced. The mechanism of the cold box plus process isthat the proper heat increases the activity of resin function groups and promotes the crosslinking re-action The result of a scanning electron microscope analysis shows that the core surface strength isimproved by heat展开更多
介绍了意大利FA制芯中心及其锁芯工艺在缸体主体芯组中的应用情况:(1)采用意大利FA制芯中心及其锁芯工艺,实现了乘用车缸体的大批量生产;(2)CORE IN CORE工艺提高了砂芯的尺寸精度,使缸体尺寸精度满足CT8要求;(3)工装的标准化设计,实现...介绍了意大利FA制芯中心及其锁芯工艺在缸体主体芯组中的应用情况:(1)采用意大利FA制芯中心及其锁芯工艺,实现了乘用车缸体的大批量生产;(2)CORE IN CORE工艺提高了砂芯的尺寸精度,使缸体尺寸精度满足CT8要求;(3)工装的标准化设计,实现了不同缸径缸体在制芯中心的生产,工装切换速度快,便于维修;(4)工装的精准设计消除了砂芯的主要失效模式,提高了制芯中心的生产效率。展开更多
文摘The cold box plus process it discussed in principle When the proper heating to the corebox is given (65℃±2℃). the binder lever can be saved, also the core strength and surface hardnessare imtroved, the moisture-sensitvity is reduced. The mechanism of the cold box plus process isthat the proper heat increases the activity of resin function groups and promotes the crosslinking re-action The result of a scanning electron microscope analysis shows that the core surface strength isimproved by heat
文摘介绍了意大利FA制芯中心及其锁芯工艺在缸体主体芯组中的应用情况:(1)采用意大利FA制芯中心及其锁芯工艺,实现了乘用车缸体的大批量生产;(2)CORE IN CORE工艺提高了砂芯的尺寸精度,使缸体尺寸精度满足CT8要求;(3)工装的标准化设计,实现了不同缸径缸体在制芯中心的生产,工装切换速度快,便于维修;(4)工装的精准设计消除了砂芯的主要失效模式,提高了制芯中心的生产效率。
