Metal treatment – Compositions – Heat treating
Patent
1973-08-31
1976-03-09
Rutledge, L. Dewayne
Metal treatment
Compositions
Heat treating
291961, B32B 1500
Patent
active
039430111
ABSTRACT:
A strip of composite metal laminate material embodying a thin inner layer of stainless steel sandwiched between and metallurgically bonded to two relatively thicker outer layers of low carbon steel is subjected to a brief, high temperature heat treatment followed by a relatively much longer heat treatment at much lower temperature for substantially eliminating the yield point in the laminate and for maximizing formability of the laminate while permitting some reduction in the corrosion resistance properties of the stainless steel layer of the laminate. The composite strip material is then readily formed into two, concentrically disposed convolutions of the strip material while the laminate material is in this highly formable condition. The convolutions of the strip material are then brazed together to provide a double-walled tubing, the brazing procedure being regulated to effect selected heat treatment of the formed composite material for substantially restoring the corrosion resistance properties of the stainless steel layer of the laminate within the finished tubing.
REFERENCES:
patent: 2034278 (1936-03-01), Becket
patent: 2653117 (1953-09-01), Keene
patent: 2753623 (1956-07-01), Boessenkool
patent: 3240572 (1966-03-01), Faber
patent: 3393445 (1968-03-01), Ulam
patent: 3537828 (1970-11-01), Henrickson
Baumann Russell E.
Haug John A.
McAndrews James P.
Rutledge L. Dewayne
Steiner Arthur J.
LandOfFree
Deformable composite material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Deformable composite material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Deformable composite material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-831700