Process for bonding refractory to surfaces

Details Process for bonding refractory to surfaces Process for bonding refractory to surfaces

1983-09-23

1985-03-12

Sebastian, Leland A.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making articles of indefinite length

419 2, 419 24, 419 34, 419 35, 419 36, C22C 3300

Patent

active

045044406

ABSTRACT:
A process for forming a mat (14) of metal fibers (2) which can be used to hold ceramic material onto the surface of equipment to be protected from heat and corrosion, including the steps of mixing a plurality of metal fibers (2) with polybutene (8) and a finely-divided brazing material (10). This mixture is spread onto a support member (4) having an insulating coating (6) thereon to prevent the fibers from becoming brazed to the support member. The support member containing the fibers thereon is then subjected to a brazing temperature (12), brazing the fibers together to form a loose mat. The mat is then removed from the support member, and reduced (16) in thickness into a more dense mat of fibers. The dense mat (14) is then again subjected to a brazing temperature (18), to form a final product having unusual strength qualities. The dense mat (14), after brazing (18), is formed with dies (19) to a desired shape such as a coating on tubing and either rebrazed to bond to the tubing surface (20) or attached by welding such as stud welding.

REFERENCES:
patent: Re30600 (1981-05-01), Long et al.
patent: 3390986 (1968-07-01), Stenerson
patent: 3811976 (1974-05-01), Schlomer et al.
patent: 3916054 (1975-10-01), Long et al.

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