초록 ▼

A gas seal for rotary shaft applications in which at least a portion of a contact surface of one member of the seal that has relative motion with and in contact with a second member of the seal is coated with a chromium carbide-age hardenable nickel base alloy. The process for depositing and heating

A gas seal for rotary shaft applications in which at least a portion of a contact surface of one member of the seal that has relative motion with and in contact with a second member of the seal is coated with a chromium carbide-age hardenable nickel base alloy. The process for depositing and heating the coating is also claimed.

대표청구항 ▼

[ What is claimed:] [1.] A face contact fluid seal comprising a first member made from a material selected from the group consisting of a metal and silicon carbide which cooperates with and is in contact with a second member of a carbonaceous material with at least one of said members moving on the

[ What is claimed:] [1.] A face contact fluid seal comprising a first member made from a material selected from the group consisting of a metal and silicon carbide which cooperates with and is in contact with a second member of a carbonaceous material with at least one of said members moving on the surface of the other member; and wherein at least a portion of the surface of the first member in contact with the second member is coated with a heat treated chromium carbide-age hardened nickel base alloy coating in which the chromium carbide comprises Cr.sub.7 C.sub.3 plus Cr.sub.23 C.sub.6 and wherein the chromium carbide comprises from 50 to 95 weight percent of the coating and the age hardened nickel base alloy comprises from 5 to 50 weight percent of the coating.