Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1995-06-07
1996-10-01
Aftergut, Karen
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264 60, 264269, 264275, 264317, 264345, B29C 4310, B29C 4320, C04B 3500
Patent
active
055608833
ABSTRACT:
A method is provided for forming a synthetic corrosion product layer on tube surfaces. The method utilizes two dissimilar materials with different coefficients of thermal expansion. An object tube and sacrificial tube are positioned one inside the other such that an annular region is created between the two tubes' surfaces. A slurry of synthetic corrosion products is injected into this annular region and the assembly is heat treated. This heat causes the tubes to expand, the inner tube with the higher coefficient of expansion expanding more than the outer tube, thereby creating internal pressures which consolidate the corrosion products and adhere the corrosion products to the tubing surfaces. The sacrificial tube may then be removed by conventional chemical etching or mechanical methods.
REFERENCES:
patent: 2724672 (1955-11-01), Rubin
patent: 2771655 (1956-11-01), Nervi
patent: 2794481 (1957-06-01), Anderson
patent: 3107158 (1963-11-01), Ahlberg
patent: 3382121 (1968-05-01), Sherlock
patent: 3429962 (1969-02-01), Krystyniak
patent: 3573021 (1971-03-01), Smith
patent: 4040163 (1977-08-01), Tronsberg
patent: 4363832 (1982-12-01), Odawara
patent: 4368217 (1983-01-01), Tournut
patent: 4394202 (1983-07-01), Thomas et al.
patent: 4743329 (1988-05-01), Hata
patent: 5516388 (1996-05-01), Moran et al.
Lane Michael H.
Salamon Eugene J. M.
Aftergut Karen
Caress Virginia B.
Gottlieb Paul A.
Moser William R.
The United States of America as represented by the United States
LandOfFree
Method for forming a layer of synthetic corrosion products on tu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for forming a layer of synthetic corrosion products on tu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for forming a layer of synthetic corrosion products on tu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1500429