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1. 发明授权

US4984904A Apparatus for continuously measuring temperature of molten metal and method for making same 失效
标题翻译：用于连续测量熔融金属温度的装置及其制造方法
公开(公告)号：US4984904A
公开(公告)日：1991-01-15
申请号：US336333
申请日：1989-04-11
申请人： Masao Nakano , Keiichi Mori , Yoshitaka Hiraiwa , Shoji Iizuka , Shozo Shima , Yukio Nakamura
发明人： Masao Nakano , Keiichi Mori , Yoshitaka Hiraiwa , Shoji Iizuka , Shozo Shima , Yukio Nakamura
IPC分类号： B22D11/10 , F27D21/00 , G01K1/08 , G01K7/02
CPC分类号： G01K1/08
摘要： An apparatus for continuously measuring temperatures of molten metal including a thermocouple unit (A) and an immersion protection tube unit (B), wherein the thermocouple unit (A) comprises a thermocouple (1) having an end equipped with a temperature sensing element (8) and an opposite end connected to terminals (2), an insulator (9) of substantially one piece containing the thermocouple (1), a porcelain protection tube (6) of high airtightness containing the insulator (9), and a terminal box (3) having an extension sleeve (5) with which the upper part of the porcelain protection tube (6) is held and having a housing (20) which contains the terminals (2). The immersion protection tube unit (B) comprises an alumina-graphite protection tube (21), a holding sleeve (22) with a flange which is connected to the upper part of the alumina-graphite protection tube (21), and a connecting sleeve (26) connected with the holding sleeve (22). The porcelain protection tube is detachably inserted into the alumina-graphite protection tube (21) to allow easy removal of the thermocouple and alumina-graphite protection tube (21). Further, the alumina-graphite protection tube (21) is manufactured by a process of adding a resin type binder which has high carbonization yield to a compounding component formed of a mixture of graphite powder, a powder selected from and/or mixed with a powder of SiC derivatives, Si derivatives, ZrO.sub.2 --SiO.sub.2 derivatives, Al.sub.2 O.sub.3 --ZrO.sub.2 --SiO.sub.2 derivatives, and a powder of substantially granular and/or powdered alumina, and then subsequently kneading the mixture, forming it into a tube and sintering the formed tube.
摘要翻译：一种用于连续地测量包括热电偶单元（A）和浸没保护管单元（B）的熔融金属温度的装置，其中所述热电偶单元（A）包括热电偶（1），所述热电偶具有装备有温度感测元件（8 ）和连接到端子（2）的相对端，包含热电偶（1）的基本上一体的绝缘体（9），包含绝缘体（9）的高气密性的瓷保护管（6）和接线盒 3）具有延伸套筒（5），陶瓷保护管（6）的上部被保持并具有容纳端子（2）的壳体（20）。浸没保护管单元（B）包括氧化铝 - 石墨保护管（21），具有连接到氧化铝 - 石墨保护管（21）的上部的凸缘的保持套筒（22）和连接套筒（26）与保持套筒（22）连接。瓷保护管可拆卸地插入到氧化铝 - 石墨保护管（21）中，以便容易地去除热电偶和氧化铝 - 石墨保护管（21）。此外，氧化铝 - 石墨保护管（21）通过将由碳化物产率高的树脂型粘合剂添加到由石墨粉末，粉末和/或粉末混合物的混合物形成的配混成分的SiC衍生物，Si衍生物，ZrO 2 -SiO 2衍生物，Al 2 O 3 -ZrO 2 -SiO 2衍生物和基本上粒状和/或粉末状氧化铝的粉末，然后将混合物捏合，形成管并烧结形成的管。

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