| 摘要 |
PROBLEM TO BE SOLVED: To accelerate melting of a soluble piece in case of a fire by efficiently transmitting received heat energy to the entire soluble piece. SOLUTION: In a sprinkler head SP having a heat-sensitive disintegrating part S in which the soluble piece 35 is provided in a cylinder 31, a metal powder 40 of thermal conductivity higher than that of the soluble piece 35 is mixed in the soluble piece 35. COPYRIGHT: (C)2008,JPO&INPIT
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