Compositions: coating or plastic – Coating or plastic compositions – Silicon containing other than solely as silicon dioxide or...
The present invention relates to a technique for forming silicon carbide coated porous filters for use in filtering molten metal, especially copper and copper alloy melts. The technique comprises preparing a silicon carbide containing slurry having a viscosity in the range of about 1 to about 50, preferably from about 5 to about 30, centipoise and impregnating a rigid porous substrate material with the slurry. In a preferred embodiment, the slurry contains mono-aluminum phosphate as a binding agent, ethylene glycol as a wetting agent, powdered silicon carbide having a maximum settling rate of about 0.1 mm./min. and the balance essentially water. After draining of the excess slurry, the coated substrate material is heated to substantially prevent foaming of the coating during firing and fired to bond the silicon carbide coating to the substrate material.
patent: 2715063 (1951-09-01), Weiss
patent: 3039864 (1962-06-01), Hess et al.
patent: 3172757 (1965-03-01), Hess et al.
patent: 3175918 (1965-03-01), McGahan et al.
patent: 3893917 (1975-07-01), Pryor et al.
patent: 3947363 (1976-03-01), Pryor et al.
patent: 3962081 (1976-06-01), Yarwood et al.
patent: 4007923 (1977-02-01), Chia
patent: 4024056 (1977-05-01), Yarwood et al.
patent: 4075303 (1978-02-01), Yarwood et al.
patent: 4257810 (1981-03-01), Narumiya
patent: 4258099 (1981-02-01), Narumiya
patent: 4265659 (1981-05-01), Blome
patent: 4277281 (1981-07-01), Weber et al.
patent: 4330327 (1982-05-01), Pryor
patent: 4342664 (1982-08-01), Blome
patent: 4343704 (1982-08-01), Brockmeyer
patent: 4426287 (1984-01-01), Narumiya
patent: 4559244 (1985-12-01), Kasprzyk
patent: 4626453 (1986-12-01), Klutz
Cheskis Harvey P.
Tungatt Paul D.
Tyler Derek E.
Kieser H. Samuel
Technique for forming silicon carbide coated porous filters does not yet have a rating. At this time, there are no reviews or comments for this patent.If you have personal experience with Technique for forming silicon carbide coated porous filters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Technique for forming silicon carbide coated porous filters will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-932309