PROCEDIMENTO PER APPLICARE UN RIVESTIMENTO RESISTENTE ALL'USURA AD UN UTENSILE DA TAGLIO

A carbon-contg. wear resistant coating is formed on a cutting tool by palcing the tool in a satd. soln. of a salt contg. a cation from Na, X, A5, Ca, Ga, Tl, La, Ce, Ta, for 5-10 mins.; remains the tool from the solution and evaporating the solvent to crystallise the salt on the surface; placing the...

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Hauptverfasser:	GALITSKAYA GALINA KONSTANTINOVNA, SINELSCHIKOV ANDREI KARLOVICH, GAVRILOV ALEXEI GEORGIEVICH, ZHED VIKTOR PETROVICH, KURBATOVA ELENA IVANOVNA
Format:	Patent
Sprache:	ita
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	A carbon-contg. wear resistant coating is formed on a cutting tool by palcing the tool in a satd. soln. of a salt contg. a cation from Na, X, A5, Ca, Ga, Tl, La, Ce, Ta, for 5-10 mins.; remains the tool from the solution and evaporating the solvent to crystallise the salt on the surface; placing the tool into a vacuum chamber having cathodes; energises an arc discharge to evaporate a cathode of at least one gp. IVA, VA or VIA element; heating the tool by bombardment with cations to the salt decomposition temp.; switching off the arc and maintaining the temp. for 15.30 secs.; re-energising the arc and heating by cation bombardment to the carbidesation temp. of the evaporated cathode material; and introducing a gas reactant into the chamber to react with the cations to form the finial coating.