专利名称：APPARATUS FOR PRODUCING SINGLE CRYSTAL
发明人：TAKASU SEIICHI风格服饰
申请号：JP16773590
申请日：19900625
公开号：JPH03164492A
公开日：
我要去纽约>gigabyte
jigsaw>天津黑利伯瑞国际学校19910716
usl专利内容由知识产权出版社提供申正焕事件
摘要：PURPOSE:To exactly measure the temp. of a melting region by disposing a temp. measuring head including an IR radiation thermometer into a horizontal type quartz tube extending from the part to be heated in a vertical type quartz tube. CONSTITUTION:Symmetrical spheroidal mirrors 11, 12 are oppod and coupled in a heating furnace body 10 in such a manner that the respective one focus F0 thereof align to each other and IR heating sources 13, 14 are fixed and dispod to the 1st and
2nd focus F, F2 of the spheroidal mirrors 11, 12 to form a melting region 15 in the butt part of a raw material rod 17 fixed to the bottom end of an upper main shaft 16 extending perpendicularly downward from above and a crystal rod 19 fixed to the top end of a lower main shaft 18 extending perpendicularly upward from below in the position of the focus F0. The space m1 dispod with the raw material rod 17 and the crystal rod 18 and the space m2 dispod with the heating sources 13, 14 are gmented by the transparent vertical type quartz tube 20. The aperture 20 of this quartz tube 20 and the horizontal type quartz tube 21 extended laterally from the part of the part to be heated corresponding to the melting region 15 to lead out to the outside are integrated. An obrvation window 22 is provided via bellows 23 of a flexible coupling member in this
英语四六级真题动词过去式quartz tube 21 and the temp. measuring head 24 including the IR radiation thermometer 25 is dispod in this window 22.
申请人：NICHIDEN MACH LTD
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