公开(公告)号：US3720552A

公开(公告)日：1973-03-13

申请号：US3720552D

申请日：1971-03-15

申请人： LUSTIGUE S

发明人： LUSTIGUE S

IPC分类号： B22D7/10 ,  C06B19/02

CPC分类号： B22D7/104

摘要： THIS EXOTHERMIC COMPOSITION CAN BE USED IN CASTING MOLTEN METALS IN STEELWORKS AND IN FOUNDRIES SO AS TO DELAY SOLIDIFICATION AND TO FILL UP THE CAVITIES CAUSED BY THE SHRINKAGE OF THE METAL DURING SOLIDIFICATION. IT CONTAINS IN A KNOWN MANNER ALUMINUM, AT LEST ONE OXIDISING AGENT AND AT LEAST ONE FILLER. IT ADDITIONALLY CONTAINS A SOLID EASILY COMBUSTIBLE CARBONACEOUS MATERIAL IN A FINELY DIVIDED STATE. THIS MATERIAL CAN BE PAPER OR PLASTIC. IN CASE OF PAPER, THE PROPORTION AS USED IS AT LEAST 5%. THIS PROPORTION IS COMPRISES BETWEEN 0.2 AND 5% IN CASE OF PLASTIC. THE COMPOSITION ADVANTAGEOUSLY CONTAINS FINE PARTICLES OF A COMPOSITE CONSISTING OF A FILM OF ALUMINUM DEPOSITED ON A SUPPORT OF A SOLID EASILY COMBUSTIBLE CARBONACEOUS MATERIAL SUCH AS PAPER OR PLASTIC.