公开(公告)号：US20250027190A1

公开(公告)日：2025-01-23

申请号：US18895619

申请日：2024-09-25

Applicant: Swagelok Company

Inventor： Cyprian Adair William Illing ,  Peter C. Williams ,  Christina Semkow ,  Todd Johns

IPC: C23C8/22 ,  C21D1/06 ,  C23C8/26 ,  C23C8/30 ,  C23C8/32

Abstract: A method for treating a workpiece made from a self-passivating metal and having a Beilby layer is disclosed. The method comprises exposing the workpiece to the vapors produced by heating a reagent having a guanidine [HNC(NH2)2] moiety and complexed with HCl to activate the workpiece for low temperature interstitial surface hardening.

公开(公告)号：US12129556B2

公开(公告)日：2024-10-29

申请号：US17112076

申请日：2020-12-04

Applicant: SWAGELOK COMPANY

Inventor： Cyprian Adair William Illing ,  Peter C. Williams ,  Christina Semkow ,  Todd Johns

IPC: C23C8/22 ,  C21D1/06 ,  C23C8/26 ,  C23C8/30 ,  C23C8/32

CPC classification number: C23C8/22 ,  C21D1/06 ,  C23C8/26 ,  C23C8/30 ,  C23C8/32

Abstract: A method for treating a workpiece made from a self-passivating metal and having a Beilby layer is disclosed. The method comprises exposing the workpiece to the vapors produced by heating a reagent having a guanidine [HNC(NH2)2] moiety and complexed with HCl to activate the workpiece for low temperature interstitial surface hardening.

公开(公告)号：US12125620B2

公开(公告)日：2024-10-22

申请号：US17634321

申请日：2019-08-13

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Ichiro Ishikawa ,  Takeshi Noda ,  Kazuhiro Ogawa

IPC: H01F1/147 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C23C8/32 ,  H01F1/16

CPC classification number: H01F1/147 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C23C8/32 ,  H01F1/16

Abstract: An electrical steel sheet includes a main surface and an end surface. The electrical steel sheet includes a base material part and an end surface nitrided layer that is provided on the end surface in a manner adjacent to the base material part and that contains nitrogen. The end surface nitrided layer has a surface hardness of 430 HV or more and 1250 HV or less. The end surface contains nitrogen in an amount higher than a nitrogen concentration at the main surface.

公开(公告)号：US20240102143A1

公开(公告)日：2024-03-28

申请号：US18529138

申请日：2023-12-05

Applicant: Swagelok Company

Inventor： Christina Semkow ,  Cyprian Adair William Illing ,  Peter C. Williams ,  Wayne Ostrosky

IPC: C23C8/02 ,  C23C8/32 ,  C23C8/80

CPC classification number: C23C8/02 ,  C23C8/32 ,  C23C8/80

Abstract: A method for treating a workpiece made of self-passivating metal and having a Beilby layer including applying a coating to a surface of the workpiece, the coating including a reagent, treating the coating to thermally alter the reagent, wherein the thermal altering of the reagent activates and/or hardens the surface.

公开(公告)号：US11667999B2

公开(公告)日：2023-06-06

申请号：US16039564

申请日：2018-07-19

Applicant: UES INC. ,  MIDWEST THERMAL-VAC INC ,  AKTIEBOLAGET SKF

Inventor： Hitesh K. Trivedi ,  Frederick J. Otto ,  Timothy W. Piazza ,  Bryan A. McCoy ,  Rabi S. Bhattacharya

IPC: C23C8/32 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/52 ,  F16C33/62 ,  F16C33/64 ,  C23C8/58 ,  C21D6/00 ,  C21D9/40 ,  C21D1/06 ,  C21D1/25 ,  C22C5/04 ,  C22C19/03

CPC classification number: C23C8/32 ,  C21D1/06 ,  C21D1/25 ,  C21D6/005 ,  C21D6/007 ,  C21D9/40 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/52 ,  C23C8/58 ,  F16C33/62 ,  F16C33/64 ,  C21D2211/008 ,  C22C5/04 ,  C22C19/03 ,  F16C2202/04 ,  F16C2204/70 ,  F16C2240/06 ,  F16C2240/60

Abstract: A method for producing a case-hardened martensitic stainless steel article includes: providing an article comprised, at least in part, of a martensitic stainless steel, carburizing the article within a temperature range of 1625° F.-1680° F. (885° C.-916° C.), and then carbo-nitriding the article within a temperature range of 1575° F.-1625° F. (857° C.-885° C.). An article, such as a bearing ring, comprising such a case-hardened martensitic stainless steel is also disclosed.

公开(公告)号：US11661647B2

公开(公告)日：2023-05-30

申请号：US16566423

申请日：2019-09-10

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Bing Han ,  Manuel Marya ,  Yuteng Liang

IPC: C23C8/22 ,  C23C16/50 ,  C23C14/06 ,  E21B43/12 ,  C23C8/32 ,  C23C8/08 ,  C23C16/26 ,  C23C28/04

CPC classification number: C23C8/22 ,  C23C8/08 ,  C23C8/32 ,  C23C14/0605 ,  C23C16/26 ,  C23C16/50 ,  C23C28/044 ,  C23C28/046 ,  E21B43/126

Abstract: Artificial lift pump components such as couplings are disclosed, all having a body formed from a selected material, the body having an inner diameter and an outer diameter, a first surface treatment introducing carbon, nitrogen, boron into the material to form a first and hard layer, and a second layer defined as an deposited coating to the first layer that is also made of a carbon, nitrogen, or boron and is further characterized as being ceramic like (hard) and having a low-friction.

公开(公告)号：US20220403901A1

公开(公告)日：2022-12-22

申请号：US17768159

申请日：2020-10-09

Applicant: Oerlikon Surface Solutions AG, Pfäffikon

Inventor： Rolf HEINECKE ,  Franco AROSIO ,  Ingo LANGE

IPC: F16D65/12 ,  C23C8/32 ,  C23C8/02 ,  F16D65/00

Abstract: Method for producing a mechanically and preferably machined cast iron or grey cast iron surface, in particular on a brake disc, with increased wear and corrosion resistance, characterized in that said surface is subjected to a water jet treatment—usually according to the so-called fluid jet process, which is adjusted so that it completely or at least partially clears the cavities opened by the machining, which contain a graphite inclusion surrounded by the basic structure, so that in the latter case the level of the graphite inclusion lies below the outer surface of the basic structure surrounding the cavity, whereupon a diffusion layer is applied by nitrocarburizing and an oxide layer is applied on the diffusion layer.

公开(公告)号：US20220364216A1

公开(公告)日：2022-11-17

申请号：US17731437

申请日：2022-04-28

Applicant: Swagelok Company ,  Case Western Reserve University

Inventor： Frank Ernst ,  Todd Johns ,  Ronald Edmonson ,  Cyprian Adair William Illing ,  Peter C. Williams ,  Christina Semkow

IPC: C23C8/22 ,  C23C8/26 ,  C23C8/32

Abstract: A method for low-temperature interstitial case formation on a self-passivating metal workpiece includes exposing the workpiece in a heated gaseous environment comprising oxygen to pyrolysis products of a nonpolymeric reagent comprising nitrogen and carbon.

公开(公告)号：US11479845B2

公开(公告)日：2022-10-25

申请号：US16591964

申请日：2019-10-03

Applicant: International Business Machines Corporation

Inventor： Hariklia Deligianni ,  Bruce B. Doris ,  Eugene J. O'Sullivan ,  Naigang Wang

IPC: C23C8/32 ,  H01F3/02 ,  H01F3/04 ,  H01F17/00 ,  H01F27/24 ,  H01F41/04 ,  C23C14/06 ,  C23C16/06 ,  C23C14/14 ,  C23C16/40 ,  C23C14/10 ,  C23C16/34 ,  C23C28/00

Abstract: Embodiments are directed to a method of forming a magnetic stack arrangement of a laminated magnetic inductor having a high frequency peak quality factor (Q). A first magnetic stack is formed having one or more magnetic layers alternating with one or more insulating layers in a first inner region of a laminated magnetic inductor. A second magnetic stack is formed opposite a surface of the first magnetic stack in an outer region of the laminated magnetic inductor. A third magnetic stack is formed opposite a surface of the second magnetic stack in a second inner region of the laminated magnetic inductor. The insulating layers are formed such that a thickness of an insulating layer in the second magnetic stack is greater than a thickness of an insulating layer in the first magnetic stack.

公开(公告)号：US11473183B2

公开(公告)日：2022-10-18

申请号：US16832253

申请日：2020-03-27

Applicant: Swagelok Company ,  Case Western Reserve University

Inventor： Peter C. Williams ,  Steven V. Marx ,  Frank Ernst ,  Anna V. Agaponova

IPC: C23C8/02 ,  C23C8/32 ,  C23C8/26

Abstract: A workpiece made from a self passivating metal and having one or more surface regions defining a Beilby layer as a result of a previous metal shaping operation is activated for subsequent low temperature gas hardening by exposing the workpiece to the vapors produced by heating an oxygen-free nitrogen halide salt.