WO2007039468A3 - A process for raising the tempering resistance of a steel work piece - Google Patents

A process for raising the tempering resistance of a steel work piece Download PDF

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Publication number
WO2007039468A3
WO2007039468A3 PCT/EP2006/066548 EP2006066548W WO2007039468A3 WO 2007039468 A3 WO2007039468 A3 WO 2007039468A3 EP 2006066548 W EP2006066548 W EP 2006066548W WO 2007039468 A3 WO2007039468 A3 WO 2007039468A3
Authority
WO
WIPO (PCT)
Prior art keywords
raising
work piece
steel work
tempering resistance
tempering
Prior art date
Application number
PCT/EP2006/066548
Other languages
French (fr)
Other versions
WO2007039468A2 (en
Inventor
Nils Lippmann
Rogerio Pitella
Original Assignee
Bosch Gmbh Robert
Bosch Do Brasil
Nils Lippmann
Rogerio Pitella
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bosch Gmbh Robert, Bosch Do Brasil, Nils Lippmann, Rogerio Pitella filed Critical Bosch Gmbh Robert
Priority to EP06793677.3A priority Critical patent/EP1954848B1/en
Publication of WO2007039468A2 publication Critical patent/WO2007039468A2/en
Publication of WO2007039468A3 publication Critical patent/WO2007039468A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals

Abstract

The present invention relates to a process for raising the tempering resistance of a steel work piece, which is vacuum carburized and austenized and then quenched in a medium with a heat transfer coefficient higher than 1500 W/m2K.
PCT/EP2006/066548 2005-09-27 2006-09-20 A process for raising the tempering resistance of a steel work piece WO2007039468A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06793677.3A EP1954848B1 (en) 2005-09-27 2006-09-20 A process for raising the tempering resistance of a steel work piece

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRPI0504417 BRPI0504417B1 (en) 2005-09-27 2005-09-27 PROCESS FOR INCREASING STEEL PIECE RESISTANCE
BRPI0504417-0 2005-09-27

Publications (2)

Publication Number Publication Date
WO2007039468A2 WO2007039468A2 (en) 2007-04-12
WO2007039468A3 true WO2007039468A3 (en) 2007-10-11

Family

ID=37460204

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/066548 WO2007039468A2 (en) 2005-09-27 2006-09-20 A process for raising the tempering resistance of a steel work piece

Country Status (3)

Country Link
EP (1) EP1954848B1 (en)
BR (1) BRPI0504417B1 (en)
WO (1) WO2007039468A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9212416B2 (en) 2009-08-07 2015-12-15 Swagelok Company Low temperature carburization under soft vacuum

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6257527B2 (en) 2012-01-20 2018-01-10 スウエイジロク・カンパニー Simultaneous flow of activated gas in low-temperature carburizing.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001068933A2 (en) * 2000-03-14 2001-09-20 The Timken Company High performance carburizing stainless steel for high temperature use
DE10021583A1 (en) * 2000-05-04 2001-11-15 Ald Vacuum Techn Ag Assembly to carburize and harden steel workpiece charges has structured pressures in the transport tunnel and heating chambers and carburizing and quenching chambers to reduce energy costs
FR2847591A1 (en) * 2002-11-25 2004-05-28 Bosch Gmbh Robert Cementation of hot working steel components by low pressure or vacuum carburation involves fixing the peripheral carbon content by thermodynamic simulation
GB2397071A (en) * 2003-01-13 2004-07-14 Boc Group Plc Quenching method and quenching chamber
DE102004039926A1 (en) * 2004-08-18 2006-02-23 Robert Bosch Gmbh Process for producing a temperature and corrosion resistant fuel injector body

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001068933A2 (en) * 2000-03-14 2001-09-20 The Timken Company High performance carburizing stainless steel for high temperature use
DE10021583A1 (en) * 2000-05-04 2001-11-15 Ald Vacuum Techn Ag Assembly to carburize and harden steel workpiece charges has structured pressures in the transport tunnel and heating chambers and carburizing and quenching chambers to reduce energy costs
FR2847591A1 (en) * 2002-11-25 2004-05-28 Bosch Gmbh Robert Cementation of hot working steel components by low pressure or vacuum carburation involves fixing the peripheral carbon content by thermodynamic simulation
GB2397071A (en) * 2003-01-13 2004-07-14 Boc Group Plc Quenching method and quenching chamber
DE102004039926A1 (en) * 2004-08-18 2006-02-23 Robert Bosch Gmbh Process for producing a temperature and corrosion resistant fuel injector body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9212416B2 (en) 2009-08-07 2015-12-15 Swagelok Company Low temperature carburization under soft vacuum

Also Published As

Publication number Publication date
EP1954848B1 (en) 2018-08-15
WO2007039468A2 (en) 2007-04-12
BRPI0504417A (en) 2007-06-12
EP1954848A2 (en) 2008-08-13
BRPI0504417B1 (en) 2014-11-04

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