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    • 6. 发明申请
    • Sprinkler head
    • 喷头
    • US20090114404A1
    • 2009-05-07
    • US11989696
    • 2005-08-02
    • Tetsuro KikuchiRikiya Kato
    • Tetsuro KikuchiRikiya Kato
    • A62C37/11
    • C22C28/00A62C35/68A62C37/11C22C12/00
    • The present invention is directed to overcome such a problem associated with a sprinkler head made of In-based alloy with no use of Pb or Cd that in contradiction with the fact that a testing temperature in a strength test of a sprinkler head is proximal to a melting temperature of a solder alloy used in a heat-sensitive decomposition structure of the sprinkler head, and therefore a good creeping property over a higher temperature zone in which a sprinkler is activated is required, typically, the sprinkler head made of the In-based alloy with no use of Pb or Cd could not achieve the creeping property over the higher temperature zone in which the sprinkler is activated as favorably as any conventional sprinkler head using Pb or Cd could do, and could occasionally end in failure in a durability test.To solve the above problem, the present invention provides an alloy usable for a heat-sensitive material in a sprinkler head, which is composed of Sn in an amount of 0.1-2.0% by mass, Bi in an amount of 31-37% by mass and In for balance for a temperature range around 70-75° C. or which is composed of Zn in an amount of 0.05-0.4% by mass, Bi in an amount of 43-55% by mass and In for balance for a temperature range around 90-95° C.
    • 本发明旨在克服与不使用Pb或Cd的In基合金制成的喷头相关的问题,这与喷洒头的强度试验中的试验温度接近于 在喷洒头的热敏分解结构中使用的焊料合金的熔融温度,因此需要在喷洒器启动的较高温度区域具有良好的蠕变性能,通常,由In-based 没有使用Pb或Cd的合金在喷淋头被激活的较高温度区域不能达到蠕变性能,因为任何使用Pb或Cd的常规喷淋头可以做到,并且偶尔在耐久性测试中可能会失败。 为了解决上述问题,本发明提供了一种可用于喷洒头中的热敏材料的合金,其由0.1-2.0质量%的Sn组成,Bi为31-37%,Bi为 质量和In,在70-75℃左右的温度范围内进行平衡,或者由0.05-0.4质量%的Zn组成,Bi为43-55质量%,In为 温度范围在90-95°C左右
    • 7. 发明申请
    • Alloy For A Fusible Plug And A Fusible Plug
    • 可熔插头和可熔插头的合金
    • US20080131309A1
    • 2008-06-05
    • US11667959
    • 2004-11-24
    • Rikiya KatoTetsuro KikuchiMutsumi Deguchi
    • Rikiya KatoTetsuro KikuchiMutsumi Deguchi
    • C22C28/00C22C12/00
    • F16K17/383
    • Problem A conventional alloy for a fusible plug contained harmful elements such as Cd or Pb, so there was a concern of pollution by these harmful elements. The present invention provides a fusible plug which does not contain the harmful components Cd or Pb, with which the alloy is not forced out of the fusible plug even when used for long periods as a safety device for refrigeration equipment, and which has a high mechanical strength such as creep strength.Means for Solving the Problem A fusible plug is used which employs a fusible alloy consisting essentially of 0.1-2.0 mass percent of Sn, 31-37 mass percent of Bi, and a remainder of In, the alloy melting at approximately at 70-75° C. A fusible plug is used which employs an alloy consisting essentially of 0.05-0.4 mass percent of Zn, 47-55 mass percent of Bi, and a remainder of In, the alloy melting at approximately 90-95° C.
    • 问题用于易熔塞的常规合金包含有害元素如Cd或Pb,因此受到这些有害元素污染的担忧。 本发明提供一种不含有害成分Cd或Pb的可熔插塞,即使长时间作为制冷装置的安全装置,合金也不会被迫从易熔丝塞出来,并且具有高机械性 强度如蠕变强度。 解决问题的手段使用易熔合金,其熔融金属基本上由0.1-2.0质量%的Sn,31-37质量%的Bi和余量的In组成,熔融约为70-75℃ C.使用可熔插塞,其使用基本上由Zn的0.05-0.4质量%,Bi的47-55质量%和In的剩余部分组成的合金,在约90-95℃熔化。
    • 9. 发明授权
    • Cover assembly for a concealed sprinkler head
    • 隐形喷头头盖组件
    • US06840329B2
    • 2005-01-11
    • US10379546
    • 2003-03-06
    • Tetsuro KikuchiHiroki IshikawaYasuaki Koiwa
    • Tetsuro KikuchiHiroki IshikawaYasuaki Koiwa
    • A62C37/11A62C37/09A62C37/08A62C37/12
    • A62C37/09
    • A concealed sprinkler head is mounted above the ceiling of a fire protected zone. The sprinkler head includes a housing within which a valve and other operative parts are contained. A decorative cover plate is secured to the housing to conceal the sprinkler head within the ceiling so that none of the operative parts is visible. The cover assembly includes a thin metallic cover plate made of a heat conductive material such as copper, and a metallic skirt including a cylindrical wall threaded on the housing, an annular flange extending outwardly from one end of the cylindrical wall, and a plurality of tabs extending downwardly from the flange. A plurality of heat insulative elements are disposed between the tabs and the cover plate. A metallic layer is attached to the lower surface of each of the insulative elements. A layer of fusible material is disposed between the metallic layer and the cover plate to secure each of the insulative elements to the cover plate through the metallic layer.
    • 一个隐蔽的洒水头安装在防火区的天花板上方。 喷洒头包括壳体,其中容纳有阀和其它操作部件。 将装饰盖板固定到壳体上以将喷洒头隐藏在天花板内,使得所有操作部分都不可见。 盖组件包括由诸如铜的导热材料制成的薄金属盖板和包括螺纹连接在壳体上的圆柱形壁的金属裙部,从圆柱形壁的一端向外延伸的环形凸缘,以及多个凸片 从法兰向下延伸。 多个绝热元件设置在突片和盖板之间。 金属层附着在每个绝缘元件的下表面。 在金属层和盖板之间设置一层可熔材料,以将每个绝缘元件通过金属层固定到盖板上。