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(12) Patent: | (11) CA 1164777 |
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(21) Application Number: | 1164777 |
(54) English Title: | CAST IRON WITH SPHEROIDAL GRAPHITE WITH AUSTENITIC- BAINITIC MIXED STRUCTURE |
(54) French Title: | FONTE A STRUCTURE SPHERO-IDALE MIXTE DE GRAPHITE A L'AUSTENITE ET AU BAINITE |
Status: | Term Expired - Post Grant |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | ROBIC, ROBIC & ASSOCIES/ASSOCIATES |
(74) Associate agent: | |
(45) Issued: | 1984-04-03 |
(22) Filed Date: | 1980-06-12 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | None |
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ABSTRACT OF THE DISCLOSURE:
A process for the production of spheroidal
graphite cast iron with an austenitic-bainitic structure.
In this process, a cast iron containing up to 0.3 % of
manganese and from 0.2 to 0.8 % of molybdenum is subjected
to an austenitic heat treatment at a temperature of 800 to
860°C for a period of 10 to 60 minutes. The austenized
cast-iron is then fast cooled in less than 2 minutes to a
temperature of 350 to 400°C and held at this temperature
for a period of 5 to 60 minutes.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
Sorry, the representative drawing for patent document number 1164777 was not found.
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Description | Date |
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Inactive: Expired (old Act Patent) latest possible expiry date | 2001-04-03 |
Grant by Issuance | 1984-04-03 |
There is no abandonment history.
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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MUEHLBERGER, HORST |
PRINZ, BRUNO |
WUNDER, WOLF |
SCHAEFER, ULRICH |
BOGNAR, JOSEF |
Past Owners on Record |
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BRUNO PRINZ |
HORST MUEHLBERGER |
JOSEF BOGNAR |
ULRICH SCHAEFER |
WOLF WUNDER |