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Résultats pour
 brevets
1.
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NON-MAGNESIUM PROCESS TO PRODUCE COMPACTED GRAPHITE IRON (CGI)
| Numéro d'application |
18513843 |
| Statut |
En instance |
| Date de dépôt |
2023-11-20 |
| Date de la première publication |
2024-03-21 |
| Propriétaire |
SNAM ALLOYS PVT LTD (Inde)
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| Inventeur(s) |
- Sivaraman, Srikanth
- Subhramanyam, Gowri
- Srinivasan, Nadimuthu
- Radhakrishnan, Harisankar
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Abrégé
The present invention pertains to a non-magnesium process to produce Compacted Graphite Iron (CGI) by placing a treatment alloy into a treatment ladle, and then placing an inoculant over the treatment alloy in the treatment ladle and pouring a molten base metal there over. The treatment alloy comprises iron, silicon and lanthanum, wherein lanthanum is 3-30% by weight of the treatment alloy, silicon is 40-50% by weight of the treatment alloy, and the remaining is Iron. Lanthanum in the treatment alloy makes the graphite precipitate as vermiculite (compacted form) instead of flake or spheroids. With extended process window offered by this new process (0.03-0.1% residual lanthanum in the metal) required to make CGI, this new process removes the stringent process control (0.01-0.02% residual magnesium in the metal) dictated by the magnesium process of making CGI.
Classes IPC ?
- C22C 33/08 - Fabrication de fontes alliées
- B22D 1/00 - Traitement des métaux en fusion dans la poche ou dans les chenaux de coulée avant le moulage
- C22C 37/10 - Fontes alliées contenant de l'aluminium ou du silicium
- C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
- C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
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2.
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Non-magnesium process to produce compacted graphite iron (CGI)
| Numéro d'application |
16332409 |
| Numéro de brevet |
11859270 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2017-09-12 |
| Date de la première publication |
2021-03-25 |
| Date d'octroi |
2024-01-02 |
| Propriétaire |
SNAM ALLOYS PVT LTD (Inde)
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| Inventeur(s) |
- Sivaraman, Srikanth
- Subhramanyam, Gowri
- Srinivasan, Nadimuthu
- Radhakrishnan, Harisankar
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Abrégé
The present invention pertains to a non-magnesium process to produce Compacted Graphite Iron (CGI) by placing a treatment alloy into a treatment ladle, and then placing an inoculant over the treatment alloy in the treatment ladle and pouring a molten base metal there over. The treatment alloy comprises iron, silicon and lanthanum, wherein lanthanum is 3-30% by weight of the treatment alloy, silicon is 40-50% by weight of the treatment alloy, and the remaining is Iron. Lanthanum in the treatment alloy makes the graphite precipitate as vermiculite (compacted form) instead of flake or spheroids. With extended process window offered by this new process (0.03-0.1% residual lanthanum in the metal) required to make CGI, this new process removes the stringent process control (0.01-0.02% residual magnesium in the metal) dictated by the magnesium process of making CGI.
Classes IPC ?
- C22C 33/08 - Fabrication de fontes alliées
- B22D 1/00 - Traitement des métaux en fusion dans la poche ou dans les chenaux de coulée avant le moulage
- C22C 37/10 - Fontes alliées contenant de l'aluminium ou du silicium
- C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
- C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
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3.
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METHOD FOR PRODUCING ALLOYS
| Numéro d'application |
IB2020051290 |
| Numéro de publication |
2020/165875 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2020-02-15 |
| Date de publication |
2020-08-20 |
| Propriétaire |
SNAM ALLOYS PVT LTD (Inde)
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| Inventeur(s) |
Sivaraman, Srikanth
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Abrégé
A method for casting metal alloys includes step of pouring the molten metal alloy into a rotatable die and rotating the die at a first predefined speed for spreading the molten metal alloy uniformly on the wall of the die, and cooling down the molten metal alloy. The time period for pouring the molten metal alloy and cooling it down while being rotated is less than 10 minutes.
Classes IPC ?
- B22D 13/00 - Coulée par centrifugationCoulée utilisant la force centrifuge
- C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
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4.
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A NON-MAGNESIUM PROCESS TO PRODUCE COMPACTED GRAPHITE IRON (CGI)
| Numéro d'application |
IB2017055473 |
| Numéro de publication |
2018/047134 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2017-09-12 |
| Date de publication |
2018-03-15 |
| Propriétaire |
SNAM ALLOYS PVT LTD (Inde)
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| Inventeur(s) |
- Sivaraman, Srikanth
- Subrahmanyam, Gowri
- S., Nadimuthu
- R., Harisankar
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Abrégé
The present invention pertains to a non-magnesium process to produce Compacted Graphite Iron(CGI) by placing a treatment alloy into a treatment ladle, and then placing an inoculant over the treatment alloy in the treatment ladle and pouring a molten base metal there over. The treatment alloy comprises iron, silicon and lanthanum, wherein lanthanum is 3-30 % by weight of the treatment alloy, silicon is 40-50 % by weight of the treatment alloy, and the remaining is Iron. Lanthanum in the treatment alloy makes the graphite precipitate as vermiculite (compacted form) instead of flake or spheroids. With extended process window offered by this new process (0.03-0.1 % residual lanthanum in the metal) required to make CGI, this new process removes the stringent process control (0.01-0.02 % residual magnesium in the metal) dictated by the magnesium process of making CGI.
Classes IPC ?
- G01N 33/20 - Métaux
- G01N 25/04 - Recherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant les changements d'état ou de phaseRecherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant le frittage du point de fusionRecherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant les changements d'état ou de phaseRecherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant le frittage du point de congélationRecherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant les changements d'état ou de phaseRecherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant le frittage du point de ramollissement
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