Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1987-01-09
1988-03-08
Pianalto, Bernard D.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427 38, 427295, 427319, 427377, 427380, 4273837, B05D 306
Patent
active
047299053
ABSTRACT:
A method for the production of cutting tools from an iron-based alloy and having a wear-resistant coating based on interstitial phases is provided and comprises depositing the wear-resistant coating by condensing a cathode material evaporable by an arc discharge, use being made of titanium or a titanium-based alloy as the cathode material. Upon depositing a coating of a predetermined thickness, an oxygen-containing redox gas or gaseous mixture is fed into the vacuum chamber and the cutting tool is heated up to the temperature of the eutectoid decomposition in the pseudobinary `iron-titanium` system. Thereupon the cutting tool is subjected to annealing in an atmosphere of the oxygen-containing redox gas or gaseous mixture for 10 to 40 minutes at the temperature of the martensitic transformation in the pseudobinary `iron-titanium` system.
REFERENCES:
patent: 3967035 (1976-06-01), Hale
Boyarunas Albert M.
Gavrilov Alexei G.
Kurbatova Elena I.
Sinelschikov Andrei K.
Smirnov Vitaly M.
Pianalto Bernard D.
Vsesojuzny Nauchno-Issledovatelsky Institut Instrumenta
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