US PATENT SUBCLASS 148 / 613
.~.~.~.~ Decarburizing


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



148 /   HD   METAL TREATMENT

95  DF  PROCESS OF MODIFYING OR MAINTAINING INTERNAL PHYSICAL STRUCTURE (I.E., MICROSTRUCTURE) OR CHEMICAL PROPERTIES OF METAL, PROCESS OF REACTIVE COATING OF METAL AND PROCESS OF CHEMICAL-HEAT REMOVING (E.G., FLAME-CUTTING, ETC.) OR BURNING OF METAL {17}
559  DF  .~ Heating or cooling of solid metal {22}
579  DF  .~.~ Iron(Fe) or iron base alloy {24}
612  DF  .~.~.~ Starting material contains 1.7 percent or more carbon (e.g., cast iron, etc.) {4}
613.~.~.~.~ Decarburizing


DEFINITION

Classification: 148/613

Decarburizing:

(under subclass 612) Process which includes a treatment that reduces the carbon content present in the workpiece.