Aluminum-stainless steel conductor (third) rail and method
OwnerEdward P. Patrick, Dan Popescuinventors
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Abstract
A method of manufacturing an aluminum power transmission rail product with a metallurgically bonded stainless steel cap comprises providing molten aluminum in a tundish; providing a roll formed stainless steel wear cap; pretreating and preheating the stainless steel cap, then introducing that cap into the tundish; co-casting the aluminum and cap through one or more dies; and tensioning the stainless steel cap at an exit of the casting die and rapidly cooling the same. An aluminum-stainless composite product is also disclosed.
Claims10
A method of manufacturing an aluminum power transmission rail product with a stainless steel cap metallurgically bonded thereto, said method comprising:
- (a) providing molten aluminum in a tundish;
- (b) providing a roll formed stainless steel wear cap;
- (c) pretreating and preheating the stainless steel cap, then introducing the stainless steel cap into the tundish;
- (d) co-casting through one or more casting dies molten aluminum from the tundish with the stainless steel cap;
- and
- (e) tensioning the stainless steel cap at an exit of the casting die and rapidly cooling the co-casting to produce the transmission rail product.
Dependencies are inferred from the claim text.