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US 5,178,908 AGranted
Process for coating carbonized material with metal
AssigneeMitsubishi Pencil Company, Limited
InventorTakao Koyama
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Abstract
A process for coating a carbonized material with metal is disclosed, wherein a chlorine-containing resin mixture is coated with Cr or Fe-Cr alloy to a thickness of substantially several microns. The coated product is then heated in an inactive atmosphere to carbonize the resin mixture. The process sufficiently coats a metal onto a carbonized material using relatively simple steps.
Claims1
A method of making a carbonized molding, comprising:
- mixing chlorinated vinyl chloride, graphite powder, and diarylphthalate monomer together to form a mixture;
- shaping said mixture into a molding having a desired shape;
- contacting said molding with stainless steel powder having a maximum particle size of 100 microns to coat the stainless steel powder on said molding to form a coated molding;
- and
- carbonizing the coated molding and forming a carbide layer on the carbonized coated molding by:
- heating said coated molding in an inert atmosphere at a rate of 5.degree. C./hr up to 300.degree. C., thereafter heating said coated molding in an inert atmosphere at a rate of 20.degree. C./hr up to a temperature of at least 1100.degree. C.;
- holding said coated molding at a temperature of at least 1100.degree. C. for at least three hours;
- and
- cooling said coated molding.
6 more elements
Dependencies are inferred from the claim text.