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1. 发明专利

JPH0453934B2 失效
公开(公告)号：JPH0453934B2
公开(公告)日：1992-08-28
申请号：JP21602385
申请日：1985-09-27
申请人： SHOWA ALUMINIUM CO LTD
发明人： OOTSUKA YOSHITATSU , TANIMOTO SHIGEMI , TOYODA KAZUO
IPC分类号： B22D1/00 , C22B21/06

2. 发明专利

JPH0220347B2 失效
公开(公告)号：JPH0220347B2
公开(公告)日：1990-05-09
申请号：JP4915086
申请日：1986-03-05
申请人： SHOWA ALUMINIUM CO LTD
发明人： TANIMOTO SHIGEMI , TOYODA KAZUO
IPC分类号： C22B9/00 , B22D1/00

3. 发明专利

JPS60208432A TREATING DEVICE OF MOLTEN METAL 失效
公开(公告)号：JPS60208432A
公开(公告)日：1985-10-21
申请号：JP6466284
申请日：1984-03-30
申请人： SHOWA ALUMINIUM CO LTD
发明人： TANIMOTO SHIGEMI , TOYODA KAZUO , HIKATA TOSHIICHI
IPC分类号： C21C7/072 , C22B9/05
摘要： PURPOSE:To provide the titled device having good workability and safety and preventing the wear due to oxidation of a rotary shaft by constituting said device so that minute air bubbles of a treating gas are dispersed into a molten metal from the bottom of a vertical rotary shaft, while rotating the shaft which is free in ascent and descent and inserted into a treating tank. CONSTITUTION:For treating a molten metal in a treating tank 1, an arm 3 supporting a rotary shaft is descended and the rotary shaft 4 is inserted into a tank 1 from an inserting port 9 for the rotary shaft and dipped in the molten metal. Then the shaft 4 is rotated by a motor 20 and simultaneously a treating gas such as N2 is discharged in minute air bubbles into the molten metal from a gas blowing-out port 7 of a rotatable body 6. After the removal of gaseous H2 and nonmetallic inclusions in the molten metal by the treating gas, the supply of the treating gas and the rotation of the shaft 4 are stopped, and the shaft 4 is taken out of the tank 1 by ascending the arm 3. Consequently the wear of the shaft 4 can be prevented.

4. 发明专利

JPS60141838A DEVICE FOR SEALING INSERTING PORT FOR REVOLVING SHAFT WITH TREATING VESSEL FOR MOLTEN ALUMINUM 失效
公开(公告)号：JPS60141838A
公开(公告)日：1985-07-26
申请号：JP24663783
申请日：1983-12-29
申请人： SHOWA ALUMINIUM CO LTD
发明人： TANIMOTO SHIGEMI , TOYODA KAZUO , KASAHARA TATSUO , MURAI KATSUMI
IPC分类号： C22C1/02 , C22B21/06
摘要： PURPOSE:To provide thorough sealing between an inserting port for a revolving shaft and the revolving shaft by disposing an annular sealing member around the revolving shaft and fitting tightly the annular sealing member to a receiving seat in the lower limit position of the revolving shaft. CONSTITUTION:An annular sealing member 33 moving vertically together with a revolving shaft 4 is disposed around the top end of a revolving shaft 4. When the shaft 4 descends, the member 33 and a cylindrical body 38 descend and the shaft 4 and the body 38 enter the inside of a treating chamber. When the shaft 4 comes to a lower limit position, the member 33 is received on an inward flange 11b of a receiving seat 11 for the sealing member and the bottom end of the cylinder 38 is immersed in molten Al. A coil spring 38 is compressed by a mounting frame 34 in this stage by which the member 33 is energized and is fitted tightly to the flange 11b. The intrusion of the atm. air through the spacing between the member 33 and the seat 11 is thus prevented. The atm. air intruding into the cylinder 38 through the aperture at the top end thereof contacts only with the part enclosed by the body 38. The treating vessel is thus hardly influenced by the atm. air and the treating efficiency is improved.

5. 发明专利

JPS6089527A TREATMENT OF ALUMINUM MELT 失效
公开(公告)号：JPS6089527A
公开(公告)日：1985-05-20
申请号：JP19784783
申请日：1983-10-21
申请人： SHOWA ALUMINIUM CO LTD
发明人： OOTSUKA YOSHITATSU , TANIMOTO SHIGEMI , TOYODA KAZUO
IPC分类号： C22C1/02 , C22B21/06
摘要： PURPOSE:To remove efficiently the gaseous hydrogen contained in an aluminum melt by blowing a treating gas in a foaming state into the aluminum melt in a treating tank and incorporating gaseous BF3 into the atmosphere above the melt surface. CONSTITUTION:An aluminum melt 1 is put into a treating vessel 2 and a cover 3 is put thereon. A member 6 for releasing the foamed treating gas which consists of a discoid body 6a and a porous ceramic body 6b attached to the surface thereof is attached to the top end of a supply pipe 5 for the treating gas inserted into the hole 4 of the cover 3 and extending to near the bottom. A treating gas which is an inert gas such as N2, Ar or the like is blown in the foaming state into the aluminum melt 1 from the member 6 and further gaseous BF3 is blown from a supply pipe 7 for gaseous BF3 provided to the cover 3 and is discharged from a discharge pipe 8 so that BF3 is incorporated into the atmosphere above the surface of the melt 1 at about 2-40vol%. The intrusion of the moisture in the atmosphere and hydrogen generated by the reaction of the melt 1 is thus prevented and the hydrogen in the melt 1 is effectively removed.

6. 发明专利

JPH0585258B2 失效
公开(公告)号：JPH0585258B2
公开(公告)日：1993-12-06
申请号：JP15927387
申请日：1987-06-25
申请人： SHOWA ALUMINIUM CO LTD
发明人： OOTSUKA YOSHITATSU , TANIMOTO SHIGEMI , TOYODA KAZUO
IPC分类号： B22D21/04 , B22D27/04 , B22D27/20 , C22C1/02

7. 发明专利

JPH0461070B2 失效
公开(公告)号：JPH0461070B2
公开(公告)日：1992-09-29
申请号：JP2784184
申请日：1984-02-15
申请人： SHOWA ALUMINIUM CO LTD
发明人： TSUKAMOTO KENJI , KATO YUTAKA , ISOYAMA EIZO , TANIMOTO SHIGEMI
IPC分类号： C23C8/12 , C23C14/02 , C23C16/02 , C23F4/00 , G03G5/08 , G03G5/10 , G03G5/14 , H01L21/316

8. 发明专利

JPH0361752B2 失效
公开(公告)号：JPH0361752B2
公开(公告)日：1991-09-20
申请号：JP7292187
申请日：1987-03-25
申请人： SHOWA ALUMINIUM CO LTD
发明人： TSUKUDA ICHIZO , TANIMOTO SHIGEMI , AMAYA YOSHINORI
IPC分类号： C22F1/04 , C22C21/06 , C22F1/00 , C22F1/047

9. 发明专利

JPH0227423B2 失效
公开(公告)号：JPH0227423B2
公开(公告)日：1990-06-18
申请号：JP31324986
申请日：1986-12-25
申请人： SHOWA ALUMINIUM CO LTD
发明人： OOTSUKA YOSHITATSU , TANIMOTO SHIGEMI , TOYODA KAZUO
IPC分类号： C22B9/02 , A42B3/24 , B01D9/02

10. 发明专利

JPH0227421B2 失效
公开(公告)号：JPH0227421B2
公开(公告)日：1990-06-18
申请号：JP31324786
申请日：1986-12-25
申请人： SHOWA ALUMINIUM CO LTD
发明人： OOTSUKA YOSHITATSU , TANIMOTO SHIGEMI , TOYODA KAZUO
IPC分类号： C22B9/02 , B01D9/02

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