公开(公告)号：US20240209493A1

公开(公告)日：2024-06-27

申请号：US18557430

申请日：2022-03-21

Applicant: Hydromecanique Et Frottement

Inventor： Christophe Heau ,  Maxime Villard

IPC: C23C14/34 ,  C23C14/00 ,  C23C14/02 ,  C23C14/06 ,  C23C14/35 ,  C23C14/50 ,  G21C3/07 ,  G21C21/02 ,  H01J37/32 ,  H01J37/34

CPC classification number: C23C14/345 ,  C23C14/0036 ,  C23C14/025 ,  C23C14/0641 ,  C23C14/357 ,  C23C14/505 ,  G21C3/07 ,  G21C21/02 ,  H01J37/3244 ,  H01J37/3405 ,  H01J37/3426 ,  H01J2237/332

Abstract: The invention relates to a method for depositing a chromium-based material from a target onto a metal substrate, by continuous magnetron sputtering, using a plasma generated in a gas.
According to the invention:



the ratio between the flow of gaseous ions directed toward the substrate and the flow of neutral chromium atoms directed toward the substrate is adjusted to between 0.5 and 1.7; and
a bias voltage of between −50V and −100V is applied to the substrates.

公开(公告)号：US12135060B2

公开(公告)日：2024-11-05

申请号：US17611267

申请日：2020-05-15

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Fabrice Prost ,  Pierrick Pavallier

IPC: F16C33/12 ,  F16C33/10

Abstract: A member for guiding an element mobile in oscillation or rotation is presented. The member has a body made of a hardened metallic material, provided with a bore for assembling the mobile element, having cavities that are distributed discontinuously in the bore and capable of acting as grease reserves, and having optional grease supply. In the bore are defined a bearing surface outside of the cavities and the grease supply, and a non-bearing surface in the cavities and the grease supply. The bore includes at least one zone with: cavities having a depth of between 2 and 5 mm, and a quantity of grease in the cavities per bearing surface of between 0.05 and 0.3 g/cm2. A mechanical system having such a member and a method for manufacturing such a member is also contemplated.

公开(公告)号：US12128375B2

公开(公告)日：2024-10-29

申请号：US17632359

申请日：2020-07-31

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Sébastien Bucher ,  Christophe Gérard Pupier

IPC: C23F1/00 ,  B01J13/04 ,  B22F1/065 ,  B22F1/145 ,  B22F1/17 ,  B22F10/28 ,  B22F10/34 ,  B33Y40/10 ,  B33Y70/00

CPC classification number: B01J13/04 ,  B22F1/065 ,  B22F1/145 ,  B22F1/17 ,  B22F10/28 ,  B22F10/34 ,  B33Y40/10 ,  B33Y70/00 ,  B22F2301/052 ,  B22F2301/10 ,  B22F2301/25 ,  B22F2304/10

Abstract: The present invention relates to a method for preparing a metal powder intended for an additive manufacturing process, of the type that involves scanning a bed of powder by a near-infrared laser beam, characterized in that the method comprises: an initial step for selecting a powder, which has an optical reflectivity of higher than 70% for a wavelength ranging between 800 and 1500 nm; then a step for treating said powder, which is different from particle grafting, and which induces a physical and/or chemical surface modification of the grains of said powder, making it possible to lower its optical reflectivity, at the given wavelength. The invention also relates to the use of such a powder, the grains having, after treatment, a median grain size d50 of between 5 and 50 μm.

公开(公告)号：US11732343B2

公开(公告)日：2023-08-22

申请号：US17252614

申请日：2019-06-17

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Laurent Bombillon ,  Fabrice Prost

IPC: C23C14/02 ,  C23C14/06 ,  C23C28/04 ,  B32B15/04 ,  C23C14/32

CPC classification number: C23C14/027 ,  B32B15/04 ,  C23C14/0611 ,  C23C14/325 ,  C23C28/04 ,  C23C28/046 ,  C23C28/048

Abstract: Disclosed is a part comprising a metal substrate, a non-hydrogenated amorphous ta-C or aC carbon coating that coats the substrate, and an undercoat which is based on chromium (Cr), carbon (C) and silicon (Si) and is disposed between the metal substrate and the amorphous carbon coating and to which the amorphous carbon coating is applied, characterized in that the undercoat included, at its interface with the amorphous carbon coating, a ratio of silicon in atomic percent to chromium in atomic percent (Si/Cr) of 0.3 to 0.60, and a ratio of carbon in atomic percent to silicon in atomic percent (C/Si) of 2.5 to 3.5.

公开(公告)号：US20230204067A1

公开(公告)日：2023-06-29

申请号：US18008329

申请日：2021-05-28

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Pierrick PAVALLIER ,  Fabrice PROST

IPC: F16C17/24 ,  F16C17/02

CPC classification number: F16C17/246 ,  F16C17/02

Abstract: A guide device includes: a metal component in the form of a bush provided with a friction surface intended to receive a mating part in frictional contact by sliding with oscillation; a wear sensing system of the friction surface having one or more sensors; and a wireless communication system connected to the detection system and configured to transmit information relating to the wear of the friction surface out of the guide device. The sensor or sensors are arranged exclusively on one longitudinal side or on two longitudinal sides of the bush, each longitudinal side being defined over at most two fifths of the length of the annular bush.

公开(公告)号：US20220373718A1

公开(公告)日：2022-11-24

申请号：US17771504

申请日：2020-10-26

Applicant: Hydromecanique et Frottement ,  Manutech-USD ,  Université Jean Monnet Saint-Etienne ,  Centre National de la Recherche Scientifique

Inventor： Thomas KÄMPFE ,  Laurent DUBOST ,  Xxx SEDAO

IPC: G02B1/118 ,  G02B5/20

Abstract: The present invention relates to an optical device (1) suitable for transmitting/reflecting electromagnetic radiation in a wavelength range of the electromagnetic spectrum, said device (1) comprising at least: a first coating layer (10) made of a first material, a substrate (50) made of a material that is different from the first material, and surface texturing (60) forming cavities (61) in the device (1); wherein a lower layer (50) disposed directly below the first coating layer (10) is either a second coating layer (20) made of a material that is different from the first material, or the substrate (50); wherein the lower layer (50) has a determined thickness (E50); characterised in that the cavities (61) extend through the coating layer (20) and are sunk into the lower layer (50) through at least part of the thickness (E50).

公开(公告)号：US20210123478A1

公开(公告)日：2021-04-29

申请号：US17247945

申请日：2020-12-31

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Emmanuel MASSE ,  Olivier BLANDENET

IPC: F16C33/20 ,  F16C17/02 ,  F16C29/02

Abstract: Disclosed is a self-lubricating composite friction part (1) that can be subjected, during operation, to temperatures that are at least equal to 250° C. The part includes, along the friction surface (2), a single layer of a material consisting of weft and warp yarns made of polytetrafluoroethylene, the material being impregnated with a thermostable resin having a glass transition temperature that is at least equal to 250° C. It is applied to a reinforcing layer (3).

公开(公告)号：US12228172B2

公开(公告)日：2025-02-18

申请号：US18008329

申请日：2021-05-28

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Pierrick Pavallier ,  Fabrice Prost

IPC: F16C17/24 ,  F16C17/02

Abstract: A guide device includes: a metal component in the form of a bush provided with a friction surface intended to receive a mating part in frictional contact by sliding with oscillation; a wear sensing system of the friction surface having one or more sensors; and a wireless communication system connected to the detection system and configured to transmit information relating to the wear of the friction surface out of the guide device. The sensor or sensors are arranged exclusively on one longitudinal side or on two longitudinal sides of the bush, each longitudinal side being defined over at most two fifths of the length of the annular bush.

公开(公告)号：US20240376590A1

公开(公告)日：2024-11-14

申请号：US18686184

申请日：2022-08-30

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Marie-Alix LEROY ,  Michaël OUGIER

IPC: C23C14/35 ,  C23C14/06 ,  H01M4/86 ,  H01M4/88 ,  H01M8/0206 ,  H01M8/0213 ,  H01M8/0228 ,  H01M8/10

Abstract: The invention relates to a method for depositing a carbon-based material from a target onto a metal substrate, by ion-assisted cathode sputtering.
According to the invention, the ratio between the flow of ions that is directed toward the substrate and the flow of neutral carbon atoms that is directed toward the substrate is adjusted to between 1.7 and 3.5; and a bias voltage of between −35 V and −100 V is applied to the substrate.

公开(公告)号：US20240278147A1

公开(公告)日：2024-08-22

申请号：US18567800

申请日：2022-07-13

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Frédéric GARCIA ,  Georges VIAL ,  Marie-Noëlle DESBOUCHE-JANNY

IPC: B01D5/00 ,  B01D1/00 ,  C02F1/04

CPC classification number: B01D5/006 ,  B01D1/0064 ,  C02F1/048 ,  C02F2301/063 ,  C02F2301/08

Abstract: A process for treating a fluid includes: a step of introducing fluid to treat into a chamber of a dryer, a step of drying the fluid in the chamber including a first phase during which a weight of the chamber reduces and when the weight of the chamber reaches a lower threshold or a rate of variation of the weight of the chamber is less than a first predefined value, the drying step includes a step of complementary filling of the chamber until the weight of the chamber reaches an upper threshold and a second phase during which the weight of the chamber decreases and when the rate of variation of the weight is less than a second predefined value, the process includes a step of extracting a solid residue in powder form. The invention also concerns an installation for implementing the process.