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.

IPC Classes  ?

• B22D 19/00 - Casting in, on, or around, objects which form part of the product
• B22D 19/04 - Casting in, on, or around, objects which form part of the product for joining parts
• B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art
• B22D 21/00 - Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedureSelection of compositions therefor
• C22C 21/00 - Alloys based on aluminium
• E01B 5/14 - Rails for special parts of the track, e.g. for curves
• E01B 5/08 - Composite railsCompound rails with dismountable or non-dismountable parts