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1. 发明授权

US3791437A Method of controlling an electro-magnetic molten metal pouring device 失效
标题翻译：控制电磁金属熔化装置的方法
公开(公告)号：US3791437A
公开(公告)日：1974-02-12
申请号：US3791437D
申请日：1970-12-14
申请人： YASKAWA DENKI SEISAKUSHO KK
发明人： YAMADA A , SHIBUTAMI H , HIRANO K
IPC分类号： B22D39/00 , B22D27/02 , B22D37/00
CPC分类号： B22D39/003
摘要： Described is a method of controlling an electro-magnetic molten metal pouring device which comprises an electro-magnetic pump which is adapted to generate a traveling magnetic field by a.c. excitation thereby to impart impellent force to molten metal present inside the pump, a molten metal reservoir located on one side of the pump, and a nozzle positioned on the other side of the pump; wherein supplying of molten metal to the molten metal reservoir is started and stopped respectively by detecting the lower limit level and the upper limit level of molten metal present in the molten metal reservoir, and pouring of the molten metal into a mold is started and stopped respectively by detecting the arrival of the mold and the molten metal fullness in the mold. In addition, disclosed is a method of controlling a molten metal pouring operation; wherein the final exciting voltage of said electro-magnetic pump in the preceding molten metal pouring operation is memorized, and the exciting voltage thereof is gradually raised up for a subsequent molten metal pouring operation, said memorized final exciting voltage in the preceding molten metal pouring operation being regarded as the initial exciting voltage for the subsequent molten metal pouring operation.
摘要翻译：描述了一种控制电磁熔融金属浇注装置的方法，该电磁熔融金属浇注装置包括一个电磁泵，该电磁泵适于通过交流产生行进磁场。激励，从而赋予泵内存在的熔融金属的驱动力，位于泵一侧的熔融金属容器和位于泵的另一侧的喷嘴; 其中通过检测熔融金属储存器中存在的熔融金属的下限水平和上限水平分别开始和停止向熔融金属储存器供应熔融金属，并且分别开始和停止熔融金属的注入通过检测模具的到来和熔融金属的丰满度在模具中。此外，公开了一种控制熔融金属浇注操作的方法; 其中存储上述熔融金属注入操作中的所述电磁泵的最终激励电压，并且其激发电压逐渐升高以用于随后的熔融金属注入操作，所述存在的先前熔融金属浇注操作中的最终激励电压被认为是随后的熔融金属浇注操作的初始激励电压。

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