B - Operations – Transporting – 22 – C
Patent
B - Operations, Transporting
22
C
B22C 1/02 (2006.01) B22C 1/00 (2006.01) B22C 9/00 (2006.01) C10L 9/10 (2006.01) C10L 11/04 (2006.01)
Patent
CA 2188365
The present invention is directed to a foundry sand additive composition, and method of casting molten metal against a foundry sand containing the additive composition. The additive composition comprises a humic acid-containing and/or a humic acid salt-containing ore (hereinafter referred to separately or in combination as "humic-containing ore") and carbon or graphite or admixtures of carbon and graphite. The combination of carbon and/or graphite and the humic-containing ore react in-situ when the foundry sand is heated by contact with molten metal, at temperatures of about 450°F to about 2300°F, particularly in the range of about 600°F to about 2000°F, to activate the carbon and/or graphite. The carbon and/or graphite, activated in-situ during the molding process, absorb and/or adsorb (sorb) gaseous volatile organic compounds (VOCs) within the mold, so that the VOC gases are held by the in-situ-activated carbon and/or graphite to satisfy VOC emissions requirements.
L'invention en question est une composition d'additifs de sable de fonderie, et une méthode de coulage du métal fondu contre le sable de fonderie contenant la composition d'additifs. La composition d'additifs comprend un minerai contenant de l'acide humique ou un sel d'acide humique ou les deux (nommé par la suite isolément ou en combinaison « minerai contenant de l'acide humique »), du carbone ou du graphite ou un mélange des deux. La combinaison du carbone (ou du graphite ou les deux) et du minerai contenant de l'acide humique réagit in situ quand le sable de fonderie s'échauffe au contact du métal en fusion et atteint des températures situées entre 450 degrés Fahrenheit et 2 300 degrés Fahrenheit environ, principalement des températures entre 600 et 2 000 degrés Fahrenheit, ce qui active le charbon ou graphite. Le carbone ou graphite, activé in situé pendant le processus de coulage, absorbe ou adsorbe les composés organiques volatiles gazeux (COV) à l'intérieur du moule, de sorte que les gaz COV sont retenus par le charbon ou graphite activé in situ de manière à satisfaire aux normes sur les émissions de COV.
Amcol International Corporation
Fetherstonhaugh & Co.
LandOfFree
Foundry sand additives and method of casting metal,... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Foundry sand additives and method of casting metal,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Foundry sand additives and method of casting metal,... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1657503