Method for producing spheroidal graphite cast iron and vehicle component using said spheroidal graphite cast iron
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United States of America Patent
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Jan 31, 2017
Grant Date -
Sep 18, 2014
app pub date -
Oct 5, 2012
filing date -
Oct 7, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for producing spheroidal graphite cast iron having a specific final composition includes: subjecting a molten iron to a spheroidization treatment using a spheroidizing agent of an Fe—Si—Mg—Ca-based alloy containing no rare earth element; conducting an inoculation treatment using a first Fe—Si-based inoculant; and conducting a pouring inoculation treatment with a given amount of a second Fe—Si-based inoculant containing 45-75% of Si, 1-3% of Ca, and 15 ppm or less of Ba.
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| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| JP | B2 | JP5839461 | Oct 07, 2011 |
| CN | B | CN103857807 | Oct 05, 2012 |
| WO | A1 | WO2013051698 | Oct 05, 2012 |
| EP | B1 | EP2765207 | Oct 05, 2012 |
International Classification(s)
- 2012 Application Filing Year
- B22D Class
- 363 Applications Filed
- 293 Patents Issued To-Date
- 80.72 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B22D Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 31, 2028 |
