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1. 发明专利

JPS6432167A CONTAINER FOR SAMPLING MOLTEN METAL 失效
公开(公告)号：JPS6432167A
公开(公告)日：1989-02-02
申请号：JP18919887
申请日：1987-07-29
申请人： KAWASO DENKI KOGYO
发明人： TSUDA TAKASHI , KITAURA TOSHIYUKI , KUROKI TOSHIKI
IPC分类号： G01N33/20
摘要： PURPOSE:To prevent the generation of defective points such as cavities and pinholes in a solidified sample by forming a part of a flow passage of a nonmetallic material having small thermal conductivity and delineating a sampling chamber by a nonmetallic material having small thermal conductivity and a chiller. CONSTITUTION:A container 3 has an inflow chamber 6 facing an inflow port 4 and the sampling chamber 8 which is disposed below said chamber and is communicated with the inflow chamber 6 via a reducing path 7. A barrier part 9 is projected to the proper point in the molten metal flow passage from the inflow port 4 to the sampling chamber 8. The reducing path 7 is formed of a cylindrical boss 11 provided to a partition wall 10 which partitions the inflow chamber 6 and the sampling chamber 8. This path and the inflow chamber 6 are formed of the nonmetallic material having the small thermal conductivity. The sampling chamber 8 is delineated by the bottom of the partition wall 10 consisting of the nonmetallic material and the recess 13a of the chiller 13 having the large heat conductivity. The molten metal flowing into the container collides against the barrier wall 9 and after the molten metal is stirred by the collision, the molten metal flows into the sampling chamber 8 and, therefore, the molten metal is homogeneously deoxidized. Since the molten metal advances into the sampling chamber 8 under slow cooling, the generation of the cavities and pinholes in the solidified sample is obviated.

2. 发明专利

JP2562905B2 失效
公开(公告)号：JP2562905B2
公开(公告)日：1996-12-11
申请号：JP18919787
申请日：1987-07-29
申请人： KAWASO DENKI KOGYO
发明人： TSUDA TAKASHI , KITAURA TOSHUKI , KUROKI TOSHIKI
IPC分类号： G01N33/20

3. 发明专利

JP2562906B2 失效
公开(公告)号：JP2562906B2
公开(公告)日：1996-12-11
申请号：JP18919887
申请日：1987-07-29
申请人： KAWASO DENKI KOGYO
发明人： TSUDA TAKASHI , KITAURA TOSHUKI , KUROKI TOSHIKI
IPC分类号： G01N33/20

4. 发明专利

JPS6432166A CONTAINER FOR SAMPLING MOLTEN METAL 失效
公开(公告)号：JPS6432166A
公开(公告)日：1989-02-02
申请号：JP18919787
申请日：1987-07-29
申请人： KAWASO DENKI KOGYO
发明人： TSUDA TAKASHI , KITAURA TOSHIYUKI , KUROKI TOSHIKI
IPC分类号： G01N33/20
摘要： PURPOSE:To facilitate taking out of a solidified sample and to prevent the generation of cavities and pinholes in the solidified sample by forming a reducing path consisting of a cylindrical boss made of a nonmetallic material having small thermal conductivity to a partition wall between an inflow chamber and a sampling chamber. CONSTITUTION:A container 3 has the inflow chamber 6 facing an inflow port 4 opened to a side part and the sampling chamber 8 communicated with the chamber 6 via the reducing path 7 disposed below the inflow chamber. A barrier part 9 is projected to the molten metal flow passage from the inflow port 4 to the sampling chamber 8. The reducing path 7 is formed of the cylindrical boss 11 provided on the partition wall 10 which partitions the inflow chamber 6 and the sampling chamber 8. The tip of the boss 11 is positioned upper than the inside base of the port wall of a nozzle member 4a forming the inflow part 4. The excess molten metal in the inflow chamber 6 flows out of the inflow port 4 and the excess molten metal does not remain in the inflow chamber 6 if the container is pulled up after the molten metal is sampled. The molten metal is filled into the sampling chamber 8 and the reducing path 7 while said metal is slowly cooled if the boss 11 is formed of the nonmetallic material having the small thermal conductivity. The generation of the cavities and pinholes in the solidified sample is thus obviated.

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