JPS642776A - Production of aluminum ingot having extremely low hydrogen concentration - Google Patents

Production of aluminum ingot having extremely low hydrogen concentration

Info

Publication number
JPS642776A
JPS642776A JP15927387A JP15927387A JPS642776A JP S642776 A JPS642776 A JP S642776A JP 15927387 A JP15927387 A JP 15927387A JP 15927387 A JP15927387 A JP 15927387A JP S642776 A JPS642776 A JP S642776A
Authority
JP
Japan
Prior art keywords
extremely low
crucible
hydrogen removal
aluminum ingot
low hydrogen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP15927387A
Other languages
Japanese (ja)
Other versions
JPH012776A (en
JPH0585258B2 (en
Inventor
Yoshitatsu Otsuka
Shigemi Tanimoto
Kazuo Toyoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Altemira Co Ltd
Original Assignee
Showa Aluminum Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP62-159273A priority Critical patent/JPH012776A/en
Priority claimed from JP62-159273A external-priority patent/JPH012776A/en
Publication of JPS642776A publication Critical patent/JPS642776A/en
Publication of JPH012776A publication Critical patent/JPH012776A/en
Publication of JPH0585258B2 publication Critical patent/JPH0585258B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To improve efficiency of hydrogen removal and to obtain an aluminum ingot containing extremely low hydrogen concn. such as 0.08cc/100g by cooling while blowing hydrogen removal treating gas into the molten aluminum under bubbling condition and solidifying.
CONSTITUTION: A cooler 2 is arranged at lower part of a vertically cylindrical electric furnace 1 and a cylindrical graphite crucible 5 containing the molten aluminum 6 is put on the cooler 2. At center of the graphite crucible 5, a hydrogen removal treating gas supply tube 7 is arranged as vertically movable and a ceramic-made porous bubble exhaust member 8 in fitted at the lower end thereof. The molten aluminum having the prescribed purity is charged in the crucible 5 and after supplying the hydrogen removal treating gas for the prescribed time, the supply of cooling water is started while containing this gas supply. The molten metal 6 is solidified from the bottom part of the crucible 5 at the prescribed solidified speed and the aluminum ingot having extremely low hydrogen concn. is obtd.
COPYRIGHT: (C)1989,JPO&Japio
JP62-159273A 1987-06-25 Method for producing ultra-low hydrogen concentration aluminum ingots Granted JPH012776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-159273A JPH012776A (en) 1987-06-25 Method for producing ultra-low hydrogen concentration aluminum ingots

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-159273A JPH012776A (en) 1987-06-25 Method for producing ultra-low hydrogen concentration aluminum ingots

Publications (3)

Publication Number Publication Date
JPS642776A true JPS642776A (en) 1989-01-06
JPH012776A JPH012776A (en) 1989-01-06
JPH0585258B2 JPH0585258B2 (en) 1993-12-06

Family

ID=

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH038594A (en) * 1989-06-05 1991-01-16 Fuji Photo Film Co Ltd Method and apparatus for joining metal strip
US5205346A (en) * 1992-06-11 1993-04-27 Cmi International Method and apparatus for countergravity casting molten metal

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017937U (en) * 1973-06-12 1975-02-27
JPS5540343A (en) * 1978-09-14 1980-03-21 Tokico Ltd Valve device
JPS56131064A (en) * 1980-03-17 1981-10-14 Kawasaki Steel Corp Manufacture of steel ingot having less segregation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017937U (en) * 1973-06-12 1975-02-27
JPS5540343A (en) * 1978-09-14 1980-03-21 Tokico Ltd Valve device
JPS56131064A (en) * 1980-03-17 1981-10-14 Kawasaki Steel Corp Manufacture of steel ingot having less segregation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH038594A (en) * 1989-06-05 1991-01-16 Fuji Photo Film Co Ltd Method and apparatus for joining metal strip
US5205346A (en) * 1992-06-11 1993-04-27 Cmi International Method and apparatus for countergravity casting molten metal

Also Published As

Publication number Publication date
JPH0585258B2 (en) 1993-12-06

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