Metal working – Method of mechanical manufacture – Combined manufacture including applying or shaping of fluent...
Patent
1989-04-17
1990-11-13
Eley, Timothy V.
Metal working
Method of mechanical manufacture
Combined manufacture including applying or shaping of fluent...
29417, 156322, 1563311, 164527, 427327, 428147, B23P 1518
Patent
active
049692518
ABSTRACT:
Pre-glued, coil-coated brake shoe stock is manufactured on a continuous coil coating line wherein a heavy gauge steel strip is continuously fed through abrasion and surface cleaning steps, optionally treated with a phosphoric acid/alcohol solution and then followed by application of a phenol-formaldehyde resin, a controlled curing step, and again coiled. The phenol-formaldehyde resin may have incorporated in it solid particles which will improve the dimensional stability, thermal properties and vibration and sound-dampening characteristics of the brake shoes. Brake shoes stamped from the stock made under the particular conditions described have higher shear strength and adhesion to the brake pad or lining materials than those of the prior art and have fewer problems in manufacturing.
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Burkhart, III Gilbert B.
Casper Don
Rosenberg David E.
Eley Timothy V.
Pittsburgh Coil Technology
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