초록 ▼

A process for manufacturing large diameter, spray formed billets, rings, or tubular forms by spraying atomized molten metal onto a rotating surface. The rotating surface has a collector surface that is maintained at a predetermined temperature or reheated to the predetermined temperature by an exter

A process for manufacturing large diameter, spray formed billets, rings, or tubular forms by spraying atomized molten metal onto a rotating surface. The rotating surface has a collector surface that is maintained at a predetermined temperature or reheated to the predetermined temperature by an external heat source. The external heat source impinges upon the collector surface to form a reheated or preheated zone. The external heat may be provided by a laser, high temperature flame, plasma arc, electric induction or radiation source. The molten metal is sprayed onto the collector surface in the reheated or preheated zone. Apparatus for carrying out the process is also disclosed.

대표청구항 ▼

[ What is claimed is:] [1.] A process of spray forming a generally cylindrical metal or metal alloy billet, ring, or tubular form having a diameter greater than 10 inches, comprising:a) providing a supply of molten metal or metal alloy;b) rotating a collection surface having an outer diameter greate

[ What is claimed is:] [1.] A process of spray forming a generally cylindrical metal or metal alloy billet, ring, or tubular form having a diameter greater than 10 inches, comprising:a) providing a supply of molten metal or metal alloy;b) rotating a collection surface having an outer diameter greater than 10 inches;c) providing a source of heat;d) injecting the molten metal or metal alloy into a single spray nozzle, thereby atomizing the molten metal or metal alloy;e) applying heat to a portion of the collection surface; andf) depositing the atomized molten metal or metal alloy by spraying it onto the heated portion of the collection surface.