Tin-base body solder
AssigneeGeneral Motors Corporation
InventorDouglas J. Harvey
Life of this patent
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Abstract
In the preferred embodiment, a method is presented for filling depressions in fabricated steel surfaces by applying a metallic body solder consisting of 15 to 20 weight percent copper, 2 to 3 weight percent zinc and the balance tin. The body solder alloy is heated to a temperature above about 210.degree. C. to form a workable thixotropic paste that is applied with spreading onto the steel surface. Upon cooling, the body solder forms a dense, tightly adherent fill that is grindable and paintable in conjunction with the surrounding steel surface.
Claims4
A metallic body solder incorporated in a steel surface to fill a depression therein and comprising an alloy consisting essentially of, by weight, between about 10 to 25 percent copper, about 1 to 7.5 percent zinc and the balance tin, said solder forming a dense, paintable surface adherent to said steel body.
A metallic body solder incorporated in a steel surface to fill a depression therein and comprising an alloy consisting essentially of, by weight, between about 15 to 20 percent copper, about 2 to 3 percent zinc and the balance tin, said solder forming a dense, paintable surface adherent to said steel body.
A metallic body solder comprising an alloy consisting essentially of, by weight, between about 10 to 25 percent copper, about 1 to 7.5 percent zinc and the balance tin, said alloy forming when suitably heated a workable thixotropic paste that is spreadable to fill a depression in a steel body surface and upon cooling form a dense, paintable surface adherent to said steel body.
A metallic body solder comprising an alloy consisting essentially of by weight, between about 15 to 20 percent copper, about 2 to 3 percent zinc and the balance tin, said alloy forming a spreadable paste when suitably heated above about 210.degree. C., which paste is spreadable to fill a depression in a steel body surface and upon cooling form a dense, paintable surface adherent to said steel body.
Dependencies are inferred from the claim text.