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(12) Patent: | (11) CA 2243101 |
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(54) English Title: | PROCEDE DE FABRICATION D'UNE PIECE MECANIQUE EN ACIER CEMENTEE OU CARBONITRUREE ET ACIER POUR LA FABRICATION DE CETTE PIECE |
(54) French Title: | PROCESS FOR THE MANUFACTURE OF A CASE HARDENED OR CARBONITRIDED STEEL MECHANICAL PART AND STEEL FOR THE MANUFACTURE OF THE SAID PART |
Status: | Expired and beyond the Period of Reversal |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | NORTON ROSE FULBRIGHT CANADA LLP/S.E.N.C.R.L., S.R.L. |
(74) Associate agent: | |
(45) Issued: | 2009-03-24 |
(22) Filed Date: | 1998-07-09 |
(41) Open to Public Inspection: | 1999-01-10 |
Examination requested: | 2003-03-21 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | French |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | ||||||
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Process for manufacturing a mechanical component made of steel, in which a blank of the steel component is manufactured and a high-temperature carburizing or carbonitriding treatment of at least part of the surface of the blank of the component is carried out, the chemical composition of the steel of which the component is composed comprises, by weight: 0.15%.ltoreq.C.ltoreqØ35%; 0%.ltoreq.Si.ltoreqØ6%; 0%.ltoreq.Mn+Cr+Ni+Mo.ltoreq.5%; 0%.ltoreq.Al.ltoreqØ1%; 0%.ltoreq.Cu.ltoreqØ5%; 0%.ltoreq.Ti.ltoreqØ05%; 0.004%.ltoreq.N.ltoreqØ02%; 0%.ltoreq.S.ltoreqØ15%; P.ltoreqØ03%; optionally, up to 0.02% tellurium, up to 0.04% selenium, up to 0.07% lead, up to 0.005% calcium, the balance being iron and impurities resulting from the smelting; the chemical composition being adjusted so that the Jominy curve of the steel is such that: 45 HRC.ltoreq.J3 .ltoreq.50 HRC; 39 HRC.ltoreq.J11 .ltoreq.47 HRC; 31 HRC.ltoreq.J25 .ltoreq.40 HRC; the average values J3m, J11m and J25m of five Jominy tests are such that: |J11m -J3m ×14/22-J25m ×8/22|.ltoreq.2.5 HRC and J3m -J15m .ltoreq.9 HRC. Carburizing or carbonitriding steel for manufacturing this component. Drawing for abstract: none
Procédé de fabrication d'une pièce de mécanique en acier selon lequel on fabrique une ébauche de pièce en acier et on effectue un traitement de cémentation ou de carbonitruration à haute température d'au moins une partie de la surface de l'ébauche de la pièce, la composition chimique de l'acier dont est constitué la pièce comprenant, en poids : 0,15 % < C < 0,35 % ; 0 % < Si < 0,6 % ; 0 % < Mn + Cr + Ni +Mo.ltoreq.5%; 0%.ltoreq.Al.ltoreq.0,1 %; 0%.ltoreq.Cu.ltoreq.0,5%;0%.ltoreq.Ti.ltoreq.0,05%;0,004%×N < 0,02 % ; 0 % < S < 0,15 % ; P < 0,03 % ; éventuellement, jusqu'à 0,02 % de tellure, jusqu'à 0,04 % de sélénium, jusqu'à 0,07 % de plomb, jusqu'à 0,005 % de calcium, le reste étant du fer et des impuretés résultant de l'élaboration ; la composition chimique étant ajustée pour que la courbe JOMINY de l'acier soit telle que:45HRC.ltoreq.J3.ltoreq.50 HRC;39HRC.ltoreq.J 11.ltoreq.47 HRC; 31 HRC.ltoreq.J25.ltoreq.40 HRC; les valeurs moyennes J3n, J11m et J25m de cinq essais JOMINY étant telles que ¦J11m-J3m × 14 /22 - J25m × 8 / 22¦ .ltoreq.2,5 HRC et J3m-J15m .ltoreq. 9 HRC. Acier de cémentation ou de carbonitruration pour fabriquer cette pièce. Figure pour l'abrégé : néant
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
Sorry, the representative drawing for patent document number 2243101 was not found.
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Description | Date |
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Time Limit for Reversal Expired | 2017-07-10 |
Letter Sent | 2016-07-11 |
Letter Sent | 2015-11-27 |
Maintenance Request Received | 2014-07-03 |
Inactive: Reversal of will be deemed expired status | 2012-09-06 |
Inactive: Office letter | 2012-09-06 |
Letter Sent | 2012-07-09 |
Inactive: Late MF processed | 2012-06-22 |
Grant by Issuance | 2009-03-24 |
Inactive: Cover page published | 2009-03-23 |
Pre-grant | 2008-12-30 |
Inactive: Final fee received | 2008-12-30 |
Notice of Allowance is Issued | 2008-08-19 |
Letter Sent | 2008-08-19 |
Notice of Allowance is Issued | 2008-08-19 |
Inactive: Approved for allowance (AFA) | 2008-08-01 |
Amendment Received - Voluntary Amendment | 2008-01-09 |
Inactive: S.30(2) Rules - Examiner requisition | 2007-07-10 |
Inactive: IPC from MCD | 2006-03-12 |
Letter Sent | 2003-04-10 |
Request for Examination Requirements Determined Compliant | 2003-03-21 |
Request for Examination Received | 2003-03-21 |
All Requirements for Examination Determined Compliant | 2003-03-21 |
Amendment Received - Voluntary Amendment | 2003-03-21 |
Application Published (Open to Public Inspection) | 1999-01-10 |
Inactive: First IPC assigned | 1998-10-22 |
Inactive: IPC assigned | 1998-10-22 |
Inactive: IPC assigned | 1998-10-22 |
Inactive: IPC assigned | 1998-10-22 |
Classification Modified | 1998-10-07 |
Classification Modified | 1998-10-07 |
Classification Modified | 1998-10-07 |
Inactive: IPC assigned | 1998-10-07 |
Inactive: Filing certificate - No RFE (French) | 1998-09-17 |
Application Received - Regular National | 1998-09-17 |
There is no abandonment history.
The last payment was received on 2008-06-30
Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following
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Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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ASCO INDUSTRIES |
Past Owners on Record |
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CLAUDE PICHARD |