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US 4,786,451 AGranted
Method of manufacturing a metallurgical addition agent
AssigneeDoren, Inc.
InventorDonald L. Lampus
Life of this patent
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Abstract
A method of manufacturing a metallurgical addition agent, especially an agent comprising silicon carbide fines, comprises a first step of forming a mix of at least 30% fines, cement and at least 20% water. The next step comprises pressing the wet mix in a mold while squeezing out excess water but leaving sufficient water for hydration of the cement. The pressed shapes are cured at ambient temperatures.
Claims8
A method of manufacturing a metallurgical addition agent comprising:
- A. forming a wet mix of at least 30% by weight fines of a metallurgical addition agent substance, said fines passing a 100-mesh screen, cement in an amount sufficient to bind the solids in a unified mass and at least 20% by weight water said water being in excess of that required for complete hydration of the cement;
- B. feeding said wet mix to a mold of a press, said mold having a predefined size and shape;
- C. pressing and dewatering said mix in the press by causing a ram to pass into the mold and squeezing excess water out so as to leave sufficient water for hydration of the cement;
- D. removing said dewatered mix from the mold;
- and
- E. curing said dewatered mix at ambient temperatures thusly allowing for hydration of the cement.
3 more elements
Dependencies are inferred from the claim text.