公开(公告)号：US20170298783A9

公开(公告)日：2017-10-19

申请号：US15319644

申请日：2015-06-10

Applicant: H.E.F.

Inventor： Sandrine HENRY ,  Christophe HEAU

IPC: F01L1/16 ,  C23C16/26 ,  F16H53/02 ,  C23C16/02 ,  C23C16/04 ,  F01L1/047

Abstract: A cam treatment to reduce the friction coefficient thereof relative to a counterpart in an area provided with a hard coating made from amorphous Diamond-Like Carbon or DLC, involves disposing the cams on a support, bringing the support and the cams into a chamber placed under vacuum so as to clean the cams, bringing the support into relative movement along a trajectory of travel relative to a coating source, and taking the cams off the support before assembling them on a camshaft; the method involves disposing the cams on the support in a fixed configuration which is defined in such a way that the cams are brought successively opposite the source with orientations and at distances substantially identical relative to the source, to deposit a hard coating made from amorphous Diamond-Like Carbon or DLC, selectively on the fraction of the section of the cams that is oriented towards the source.

公开(公告)号：US20170152582A1

公开(公告)日：2017-06-01

申请号：US15327116

申请日：2015-07-16

Applicant: H.E.F.

Inventor： Stéphan GRANDJEAN ,  Fabrice PROST

IPC: C21D10/00 ,  C23C8/28 ,  B23K26/21 ,  B23K9/235 ,  B23K26/00 ,  B23K26/352 ,  C23C8/26 ,  B23K9/167

CPC classification number: C21D10/005 ,  B23K9/167 ,  B23K9/23 ,  B23K9/235 ,  B23K26/21 ,  B23K26/32 ,  B23K26/352 ,  B23K26/60 ,  B23K2103/04 ,  C23C8/26 ,  C23C8/28 ,  C23C8/80

Abstract: In a method of treating a nitrided/nitrocarburized workpiece, at least a portion of the workpiece is subjected to a first step in which at least one laser beam is moved in at least one pass over the portion, until the surface layer of the portion is transformed in part or in full, and until the distribution of the nitrogen concentration in the diffusion zone is modified. In a second step at least one laser beam is moved in at least one pass over said portion so as to enable the nitrogen concentration in the underlying diffusion layer to be reduced.

公开(公告)号：US20170138224A1

公开(公告)日：2017-05-18

申请号：US15319644

申请日：2015-06-10

Applicant: H.E.F.

Inventor： Sandrine HENRY ,  Christophe HEAU

IPC: F01L1/16 ,  C23C16/26 ,  C23C16/04 ,  F16H53/02 ,  F01L1/047

Abstract: A cam treatment to reduce the friction coefficient thereof relative to a counterpart in an area provided with a hard coating made from amorphous Diamond-Like Carbon or DLC, involves disposing the cams on a support, bringing the support and the cams into a chamber placed under vacuum so as to clean the cams, bringing the support into relative movement along a trajectory of travel relative to a coating source, and taking the cams off the support before assembling them on a camshaft; the method involves disposing the cams on the support in a fixed configuration which is defined in such a way that the cams are brought successively opposite the source with orientations and at distances substantially identical relative to the source, to deposit a hard coating made from amorphous Diamond-Like Carbon or DLC, selectively on the fraction of the section of the cams that is oriented towards the source.

公开(公告)号：US20160369736A1

公开(公告)日：2016-12-22

申请号：US14395932

申请日：2013-05-06

Applicant: H.E.F.

Inventor： Christophe HEAU ,  Laurent BOMBILLON ,  Philippe MAURIN-PERRIER

IPC: F02F1/00 ,  C23C16/50 ,  C23C16/26

CPC classification number: F02F1/004 ,  C23C16/26 ,  C23C16/50 ,  F02F2200/00 ,  F05C2253/06 ,  F05C2253/12

Abstract: An inside surface of an internal combustion engine jacket is treated to have a surface roughness Ra smaller than 0.06 μm, and then receives a DLC coating. A method of producing the internal combustion engine jacket includes: forming the jacket from a metal material, polishing an inside surface of the jacket to obtain a polished inside surface of roughness Ra smaller than 0.06 μm, and applying the DLC coating to the polished inside surface.

Abstract translation: 将内燃机护套的内表面处理成表面粗糙度Ra小于0.06μm，然后接受DLC涂层。 一种内燃机护套的制造方法，其特征在于，由金属材料形成所述护套，对所述护套的内表面进行研磨，得到抛光内表面的粗糙度Ra小于0.06μm，将DLC涂层涂布于所述抛光内表面 。

公开(公告)号：US20160201799A1

公开(公告)日：2016-07-14

申请号：US14912496

申请日：2014-08-12

Applicant: H.E.F. ,  MAHLE INTERNATIONAL GMBH

Inventor： Sandrine HENRY ,  Christophe HEAU ,  Fabrice PROST ,  Roland LOCHMANN ,  Marco MAURIZI

IPC: F16J1/16 ,  C23C16/50 ,  C23C16/27

CPC classification number: F16J1/16 ,  C23C14/00 ,  C23C14/024 ,  C23C14/0605 ,  C23C16/27 ,  C23C16/50

Abstract: The piston pin has an anti-seize coating limited to an angular sector corresponding at least to a friction area submitted to a contact pressure along a preferential direction.

Abstract translation: 活塞销具有限制到至少对应于沿着优先方向施加到接触压力的摩擦区域的角度部分的抗咬合涂层。

公开(公告)号：US11001678B2

公开(公告)日：2021-05-11

申请号：US15741432

申请日：2016-07-01

Applicant: H.E.F.

Inventor： Constantin Iacob ,  Sébastien Bucher ,  Fabrice Prost

IPC: C09K5/14 ,  H01B1/22 ,  C08J3/12 ,  H01B1/02 ,  H01B1/08 ,  H01B1/12 ,  H01B1/24

Abstract: Some embodiments are directed to the manufacture of functional composites (electrical conductors, thermal conductors, etc.) produced from coated powders.

公开(公告)号：US10969679B2

公开(公告)日：2021-04-06

申请号：US16311293

申请日：2017-06-21

Applicant: H.E.F. ,  UNIVERSITE JEAN MONNET SAINT ETIENNE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)

Inventor： Maxime Bichotte ,  Yves Jourlin ,  Laurent Dubost

IPC: G03F1/68 ,  G03F7/20 ,  G03F1/76

Abstract: The invention relates to a system (2) for producing an optical mask (35) for surface microtexturing, said system (2) comprising: a substrate (10) having a surface (11) that is to be textured; a layer of material (20) which covers the surface (11) of the substrate (10) and has an outer surface (21) that is exposed to the outside environment; and a generating and depositing device for generating and depositing droplets (30) on the outer surface (21) of the layer of material (20), in a specific arrangement (31) under condensation, forming the optical mask (35) on the outer surface (21) of the layer of material (20). The invention also relates to a treatment plant comprising a system (2) of said type. The invention further relates to a method for producing a mask as well as to a surface microtexturing method.

公开(公告)号：US10767132B2

公开(公告)日：2020-09-08

申请号：US14649410

申请日：2013-12-06

Applicant: H.E.F.

Inventor： Patrick Villemagne ,  Georges Godard

IPC: C10M107/38 ,  F16C33/10 ,  F16C33/20 ,  C10M175/00 ,  F16C17/02

Abstract: The bore of the ring has workings suitable to act as a grease reserve at a friction area. A self-lubricating coating layer with a low wettability is applied to the entire surface of the bore, including in the workings suitable to act as a grease reserve, such that after wearing of the layer of self-lubricating coating at the friction surface of the bore, the difference in wettability between the friction surface and the workings still having the coating layer, enables the grease to be drawn out of the workings in order to lubricate the friction area.

公开(公告)号：US20200274168A1

公开(公告)日：2020-08-27

申请号：US16796287

申请日：2020-02-20

Applicant: SAFT ,  H.E.F.

Inventor： Celine LAVAUD ,  Cecile TESSIER ,  Laurent DUBOST ,  Michel Joseph Pierre Marie MARTIN

IPC: H01M4/66 ,  H01M10/0525 ,  H01M10/39 ,  H01M10/0562 ,  H01M10/0566 ,  H01M4/90

Abstract: A metal foil including on at least one of its sides a layer of a material including: a metal or a metal alloy, carbon, hydrogen, and optionally oxygen, the atomic percentage of the metal or of the metals of the alloy in the material ranging from 10 to 60%, the atomic percentage of carbon in the material ranging from 35 to 70%, the atomic percentage of hydrogen in the material ranging from 2 to 20%, and the atomic percentage of oxygen if present in the material being less than or equal to 10%. The metal foil can be used in the manufacture of a cathode of a lithium-ion electrochemical cell. The deposition of this layer reduces the internal resistance of the cell.

公开(公告)号：US20200080686A1

公开(公告)日：2020-03-12

申请号：US16467636

申请日：2017-12-04

Applicant: H.E.F.

Inventor： Christophe HEAU ,  Philippe MAURIN-PERRIER

IPC: F16N1/00 ,  C23C14/06 ,  F16J15/16 ,  F16N17/02 ,  C23C30/00

Abstract: The present invention concerns a friction piece (10) suitable for operating in a lubricated medium at a temperature higher than 200° C. The piece (10) comprises a metal surface (12) and an external coating (14) composed of tungsten carbide doped with nitrogen WC(N) with an atomic ratio of nitrogen between 5 and 12%. The invention also relates to a mechanical system (1) comprising such a piece (10). The invention also relates to a method for implementing such a piece (10).