阅读说明：本技术 塞杆和用于在塞杆周围提供均匀的气体帘幕的方法 (Plug rod and method for providing a uniform gas curtain around the plug rod ) 是由 G·哈克尔 W·费尔纳 于 2020-01-28 设计创作，主要内容包括：本发明涉及用于在熔融金属的铸造期间控制熔融金属的流动并用于供应气体的塞杆和在塞杆周围提供均匀的气体帘幕的方法。(The present invention relates to a stopper rod for controlling the flow of molten metal and for supplying gas during casting of the molten metal and a method of providing a uniform curtain of gas around the stopper rod.)