公开(公告)号：US20220220999A1

公开(公告)日：2022-07-14

申请号：US17613257

申请日：2020-05-15

Applicant: H.E.F.

Inventor： Fabrice PROST ,  Pierrick PAVALLIER

IPC: F16C11/04

Abstract: A guiding member, having a body provided with a bore for mounting a mobile element is presented. The body consists of a metallic material. The bore has a surface layer treated against jamming over a diffusion depth of less than or equal to 0.6 mm. The surface layer has a hardness of greater than or equal to 500 Hv1 over a depth of between 5 and 50 μm.

公开(公告)号：US20210123395A1

公开(公告)日：2021-04-29

申请号：US16477232

申请日：2018-01-10

Applicant: H.E.F.

Inventor： Fabrice PROST ,  Christophe HEAU ,  Romain MONTELIMARD

IPC: F02F3/00 ,  F16J1/02 ,  F16J9/00

Abstract: Various implementations include a combustion engine piston, including a skirt in a counter-part and including a first contact area of the piston in the counter-part, a head which extends transverse to a central axis, and a ring carrier which comprises at least two lands and at least two grooves for receiving the rings, including a first land adjoining the head and a second land situated between the first land and the skirt, wherein the lands include at least one contact land having a diameter greater than a minimum diameter of the skirt to form a second contact area of the piston in the counter-part, and wherein at least one contact land comprises a friction-reducing surface coating, formed at least on a radial sector covering an angle of at least 30 degrees, and up to on a single sector covering an angle of 360 degrees.

公开(公告)号：US20190194481A1

公开(公告)日：2019-06-27

申请号：US16331908

申请日：2017-09-08

Applicant: H.E.F.

Inventor： Constantin IACOB ,  Sébastien BUCHER ,  Fabrice PROST ,  Christophe HEAU

IPC: C09D11/037 ,  B01J13/02 ,  C09D11/102 ,  B33Y70/00 ,  B22F1/00

CPC classification number: C09D11/037 ,  B01J13/02 ,  B22F1/0014 ,  B22F9/04 ,  B22F2301/052 ,  B22F2301/10 ,  B22F2301/15 ,  B22F2304/10 ,  B33Y70/00 ,  C09D11/102

Abstract: Some embodiments are directed to a multimaterial powder used in the field of metallurgy and plasturgy. The multimaterial powder includes support particles having a median particle size distribution between 1 μm and 100 μm and functionalising particles having a median particle size distribution that is a factor of 10 to 1000 lower relative to the support particles. The powder is characterised in that the support particles and the functionalising particles form composite grains having a core-shell structure that each have a core formed by a support particle, and a shell, that covers between 10 and 100% of the surface of the support particle and which is formed by at least one surface layer of the functionalising particles.

公开(公告)号：US20180179396A1

公开(公告)日：2018-06-28

申请号：US15737739

申请日：2016-06-17

Applicant: H.E.F.

Inventor： Constantin IACOB ,  Sébastien BUCHER ,  Christophe HEAU ,  Fabrice PROST

IPC: C09D5/03 ,  C09D163/00 ,  C09D5/24 ,  H01B1/22

CPC classification number: C09D5/03 ,  C08K3/042 ,  C08K9/02 ,  C08K2003/0806 ,  C08K2003/0812 ,  C08K2003/2241 ,  C08K2201/001 ,  C09D5/24 ,  C09D163/00 ,  H01B1/22

Abstract: Some embodiments relate to a powder paint thermosetting binder composition that is solvent-free and includes at least one hardener and one cross-linking catalyst, and a first epoxy resin or a functionalized resin having at least one epoxy group. The resin has an epoxy equivalent weight of between 250 and 800 g/eq and a glass transition temperature of between 35 and 80° C. A binder composition of this kind has a polymerization starting temperature of 80° C. and a gel time of between 35 s and 140 s at 180° C. Some embodiments also relate to a paint composition containing a thermosetting binder composition of this kind, at least one pigment and, optionally, in addition a leveling agent and inorganic or organic fillers.

公开(公告)号：US20180201739A1

公开(公告)日：2018-07-19

申请号：US15741432

申请日：2016-07-01

Applicant: H.E.F.

Inventor： Constantin IACOB ,  Sébastien BUCHER ,  Fabrice PROST

IPC: C08J3/12 ,  H01B1/24 ,  C09K5/14

CPC classification number: C08J3/128 ,  C08J2323/06 ,  C08J2327/18 ,  C08J2371/10 ,  C09K5/14 ,  H01B1/02 ,  H01B1/08 ,  H01B1/12 ,  H01B1/22 ,  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：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：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。