公开(公告)号：US3973997A

公开(公告)日：1976-08-10

申请号：US482009

申请日：1974-06-24

申请人： Ralph E. Solomon

发明人： Ralph E. Solomon

IPC分类号： G01K7/06 ,  H01L35/08 ,  H01L35/20 ,  H01L35/34 ,  H01L35/04 ,  H01L35/14

CPC分类号： G01K7/06 ,  H01L35/08 ,  H01L35/20 ,  H01L35/34

摘要： An improved hot junction construction for thermocouples is provided by means of a tight fitting internal tube positioned over the outer end of the thermocouple wire prior to its fusion with the tip tube. The internal tube is formed of an alloy, such as an iron alloy containing chromium and nickel, such that the components thereof form a metal solution with the components of the thermocouple wire, which may be of a nickel-containing alloy such as copper-nickel alloy, and the external tube formed, for example, of an iron-chromium alloy. When the outer ends of the wire, internal tube and tip tube are fused, a hot junction is produced which is substantially free of pores, gaseous inclusions and stresses.

摘要翻译： 通过紧密配合的内管，在与热电偶熔合之前，设置在热电偶线的外端上方，提供了热电偶的改进的热接头结构。 内管由诸如含有铬和镍的铁合金的合金形成，使得它们的组分与热电偶线的组分形成金属溶液，热电偶线可以是含镍合金如铜镍 合金，以及例如由铁 - 铬合金形成的外管。 当导线，内管和尖端管的外端熔合时，产生基本上没有孔，气态夹杂物和应力的热连接点。