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1. WO2017140635 - PULLEY FOR AN ELEVATOR WITH A FRICTION REDUCING COATING AND METHOD FOR MANUFACTURING SAME

Publication Number WO/2017/140635
Publication Date 24.08.2017
International Application No. PCT/EP2017/053191
International Filing Date 14.02.2017
IPC
B66B 15/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
66HOISTING; LIFTING; HAULING
BELEVATORS; ESCALATORS OR MOVING WALKWAYS
15Main component parts of mining-hoist winding devices
02Rope or cable carriers
CPC
B66B 15/02
BPERFORMING OPERATIONS; TRANSPORTING
66HOISTING; LIFTING; HAULING
BELEVATORS; ESCALATORS OR MOVING WALKWAYS
15Main component parts of mining-hoist winding devices
02Rope or cable carriers
C23C 16/0254
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
16Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
02Pretreatment of the material to be coated
0254Physical treatment to alter the texture of the surface, e.g. scratching or polishing
C23C 16/27
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
16Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
22characterised by the deposition of inorganic material, other than metallic material
26Deposition of carbon only
27Diamond only
C23C 16/34
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
16Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
22characterised by the deposition of inorganic material, other than metallic material
30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
34Nitrides
C23C 16/50
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
16Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
44characterised by the method of coating
50using electric discharges
Applicants
  • INVENTIO AG [CH]/[CH]
Inventors
  • ZAPF, Volker
  • HESSEL, Sascha
Priority Data
16155887.916.02.2016EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PULLEY FOR AN ELEVATOR WITH A FRICTION REDUCING COATING AND METHOD FOR MANUFACTURING SAME
(FR) POULIE POUR ASCENSEUR AVEC REVÊTEMENT RÉDUISANT LE FROTTEMENT ET PROCÉDÉ DE FABRICATION DE CELLE-CI
Abstract
(EN)
A pulley (15) for an elevator (1) is proposed. The pulley (15) comprises a base body (17) made e.g. from steel and having a rotation-symmetrical circumferential surface (23). Additionally, a friction reducing coating (21) is applied to the circumferential surface (23) of the base body (17). Due to the friction reducing coating (21) and, optionally, due to additionally smoothing the base body's (17) circumferential surface (23) before depositing the coating (21), a very low friction between an outside surface (39) of the pulley (15) and a contacting surface of a suspension traction member may be obtained. Thereby, guiding characteristics of the pulley (15) may be improved and/or alignment requirements upon installation of the pulley (15) may be relaxed. Preferably, the coating (21) may comprise diamond- like carbon (DLC) or chromium nitride (CrN) such that the coating (21) may provide for superior wear resistance, slickness, corrosion protection and electrical characteristics.
(FR)
L'invention concerne une poulie (15) pour un ascenseur (1). La poulie (15) comprend un corps de base (17) constitué par exemple d'acier et ayant une surface circonférentielle à symétrie de rotation (23). De plus, un revêtement réduisant le frottement (21) est appliqué sur la surface circonférentielle (23) du corps de base (17). Grâce au revêtement réduisant le frottement (21) et, facultativement, grâce au lissage supplémentaire de la surface circonférentielle (23) du corps de base (17) avant le dépôt du revêtement (21), on peut obtenir un frottement très faible entre une surface extérieure (39) de la poulie (15) et une surface de contact d'un élément de traction de suspension. Ainsi, les caractéristiques de guidage de la poulie (15) peuvent être améliorées et/ou les exigences d'alignement lors de l'installation de la poulie (15) peuvent être assouplies. De préférence, le revêtement (21) peut comprendre du carbone adamantin (DLC) ou du nitrure de chrome (CrN) de sorte que le revêtement (21) puisse présenter une résistance à l'usure, un caractère lisse, une protection contre la corrosion et des caractéristiques électriques supérieurs.
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