Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2005-01-11
2005-01-11
Dunn, Tom (Department: 1722)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S468000, C164S504000
Reexamination Certificate
active
06840303
ABSTRACT:
An ingot I made of a light alloy is produced using a continuous casting apparatus including a cylindrical water-cooled casting mold which is disposed immediately below a spout having an upward-turned molten metal receiving port and a downward-turned molten metal outlet, and which has an inside radius r1larger than an inside radius r2of the molten metal outlet, and lubricating oil discharge passages provided below the spout to supply a lubricating oil to between the water-cooled casting mold13and a molten metal m brought into contact with the water-cooled casting mold. In this production, a lubricating oil having a vaporization rate of 30% or more at 300° is used, and an annular gas accumulation for spacing the molten metal apart from outlets of the lubricating oil discharge passages is defined below an annular protrusion of the spout by vaporization of the lubricating oil. Thus, it is possible to avoid the generation of a casting skin failure in a light alloy ingot due to the outlets of the lubricating oil discharge passages.
REFERENCES:
patent: 4157728 (1979-06-01), Mitamura et al.
patent: 4214624 (1980-07-01), Foye et al.
patent: 4522250 (1985-06-01), Laemmle et al.
patent: 5027888 (1991-07-01), Sakaguchi et al.
patent: 5219018 (1993-06-01), Meyer
patent: 264 739 (1967-12-01), None
patent: 10 67 571 (1959-10-01), None
patent: 33 38 185 (1984-05-01), None
patent: 0 372 946 (1930-06-01), None
patent: 0 218 855 (1987-04-01), None
patent: 0 337 769 (1989-10-01), None
Fujikawa Yoshiyuki
Idegomori Takashi
Mizoue Kiyonobu
Nakamura Takeyoshi
Ohtani Teruyuki
Dunn Tom
Tran Len
LandOfFree
Process for continuously casting light alloy and apparatus... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for continuously casting light alloy and apparatus..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for continuously casting light alloy and apparatus... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3430871