Coated steel product and process of producing the same

Details Coated steel product and process of producing the same Coated steel product and process of producing the same

B - Operations, Transporting

23

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148/29, 143/75,

B23D 63/00 (2006.01) B23D 65/00 (2006.01) B23P 15/28 (2006.01) C21D 9/24 (2006.01) C23C 14/32 (2006.01) C23C 14/48 (2006.01)

Patent

CA 1041881

ABSTRACT A coated steel product, namely, a cutting instru- ment such as a band saw blade, in which the body of the blade is of steel, the tooth tip is of impulse hardened steel and the tip is covered with a coating of titanium carbide or refractory metal carbide, the coating metal or compound having been deposited by ion plating onto the surface of the tip. The process through which the cutting tool is produced includes preshaping and sharpen- ing the tool, then ion cleaning the tips, bombarding the tips with ions of the titanium or refractory metal fol- lowed by reacting the titanium or refractory metal with a carbon containing chemical or their carbides and then simultaneously subjecting both the coating and the steel tip to a magnetic flux for impulse hardening primarily the steel tip. Other coating of metal carbides, nitride? borides and metal compounds are described.

212749

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