COMPOSITE MATERIAL WITH COATED DIFFUSED LAYER

The present invention relates to a composite material comprising a substrate that is thermochemically treated in order to harden the surface thereof and that is, therefore, not subject to deformations as a result of high stresses sustained by the outer layer; furthermore, the present invention furth...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BRANDOLIN, Gustavo, ALVES, Fabio Pereira, CARVALHO, Andréa Souza, BORGES, Raquel Silveira
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING 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 COCKS DEVICES FOR VENTING OR AERATING DIFFUSION TREATMENT OF METALLIC MATERIAL EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MECHANICAL ENGINEERING METALLURGY MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The present invention relates to a composite material comprising a substrate that is thermochemically treated in order to harden the surface thereof and that is, therefore, not subject to deformations as a result of high stresses sustained by the outer layer; furthermore, the present invention further comprises an adhesion layer overlying the treated layer, subsequently, an intermediate layer and a DLC (Diamond Like Carbon) layer are added, wherein the DLC layer comprises a structure based on an amorphous carbon film. The present invention is intended to be used in valves built into submarine equipment. The composite material is thermochemically treated and comprises a treated substrate (2) and an adhesion layer (3) onto which is disposed an intermediate layer (4) that receives a final DLC layer (5). All of these layers, as shown, are disposed on the surface of a substrate (1) of a gate valve (6).