首页>
外国专利>
BATTERY SAFETY VALVE MANUFACTURING METHOD, BATTERY SAFETY VALVE MANUFACTURING DEVICE, BATTERY SAFETY VALVE, AND BATTERY CASE LID MANUFACTURING METHOD
BATTERY SAFETY VALVE MANUFACTURING METHOD, BATTERY SAFETY VALVE MANUFACTURING DEVICE, BATTERY SAFETY VALVE, AND BATTERY CASE LID MANUFACTURING METHOD
展开▼
机译:电池安全阀制造方法,电池安全阀制造装置,电池安全阀以及电池盒盖制造方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
In a method for manufacturing a battery safety valve according to the present invention, a stainless steel metal sheet is used, and an thin annular portion 3 constituting an edge portion of a safety valve 2 is formed in a lid 1 by simultaneously pressing annular projecting portions 23 provided respectively on a punch 21 and a die 22 so as to oppose each other, against respective surfaces of the lid 1.
展开▼