FIELD: ferrous metallurgy.
SUBSTANCE: metallurgical briquette contains 7-15% ferrosilicium fraction 0-5 mm undersized matters, 65-80% carbon-silicon mixture of electrothermal production secondary products, and 13-20% material from group of oxide systems forming hydrate-hardening cements. Invention thus allows creation of additives with such composition, which eliminates formation of hard spots in thin-walled castings, stabilizes hardness along the depth of castings, and raises assimilation of carbon. Invention also enables using secondary materials from graphitized carbon and ferroalloy productions in metallurgical briquette composition.
EFFECT: improved quality of castings.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| PROCEDURE FOR MELTING IRON-CARBON ALLOYS IN INDUCTION FURNACES | 2007 |
|
RU2395589C2 |
| BRIQUETTE USED IN MANUFACTURE OF CAST IRON | 2004 |
|
RU2247155C1 |
| BRIQUETTE FOR IRON-CARBON ALLOY PRODUCTION (VARIANTS) | 2004 |
|
RU2282669C1 |
| GRAPHITIZING MODIFICATION METHOD OF IRON | 2015 |
|
RU2620206C2 |
| INOCULATING MIXTURE FOR PRODUCING HIGH-DUTY CAST IRON | 0 |
|
SU1406200A1 |
| GRAPHITIZING COMPOSITION | 0 |
|
SU1482973A1 |
| BRIQUETTED MIXTURE FOR INOCULATION OF GRAY IRON | 1997 |
|
RU2124566C1 |
| MODIFYING MIX | 2002 |
|
RU2226554C1 |
| METHOD OF PRODUCTION OF GRAY IRON | 1998 |
|
RU2139941C1 |
| COMPLEX STEEL OXIDAZER BASED ON LUMPY SILICON CARBIDE | 2015 |
|
RU2631570C2 |
