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以形状记忆合金热－机械动作组件作为自动启闭洒水喷头的感温驱动元件，设计了一种新型自动启闭洒水灭火喷头——形状记忆合金自动启闭洒水喷头．论述了形状记忆合金自动启闭洒水喷头的结构原理和动作特性，并将其与热双金属片感温驱动元件动作元件的动作特性进行了比较和分析
A new type of automatic opening and closing sprinkler - shape memory alloy automatic opening and closing sprinkler was designed by using the shape memory alloy thermal - mechanical actuating assembly as the temperature sensing driving element of the opening and closing sprinkler. The structural principle and operating characteristics of shape-memory alloy automatic opening and closing sprinklers are discussed, and their operating characteristics are compared with the operating characteristics of temperature-sensitive driving components