GB1365841A - Casehardening of workpieces - Google Patents

Casehardening of workpieces

Info

Publication number
GB1365841A
GB1365841A GB749573A GB749573A GB1365841A GB 1365841 A GB1365841 A GB 1365841A GB 749573 A GB749573 A GB 749573A GB 749573 A GB749573 A GB 749573A GB 1365841 A GB1365841 A GB 1365841A
Authority
GB
United Kingdom
Prior art keywords
teeth
ceramic
ring
case hardening
ceramic material
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB749573A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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
Priority claimed from DE19722207148 external-priority patent/DE2207148C3/de
Application filed by Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB1365841A publication Critical patent/GB1365841A/en
Expired legal-status Critical Current

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
    • C23C8/04—Treatment of selected surface areas, e.g. using masks

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Gears, Cams (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Heat Treatment Of Articles (AREA)
GB749573A 1972-02-16 1973-02-15 Casehardening of workpieces Expired GB1365841A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722207148 DE2207148C3 (de) 1972-02-16 Abdeckkörper zum Schutz bestimmter Werkstückbereiche vor zu hoher Einsatzhärtungstiefe

Publications (1)

Publication Number Publication Date
GB1365841A true GB1365841A (en) 1974-09-04

Family

ID=5836058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB749573A Expired GB1365841A (en) 1972-02-16 1973-02-15 Casehardening of workpieces

Country Status (4)

Country Link
US (1) US3873376A (enExample)
FR (1) FR2172261B1 (enExample)
GB (1) GB1365841A (enExample)
IT (1) IT977241B (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2652386A1 (de) * 1976-11-15 1978-07-27 Mannesmann Ag Verfahren zum haerten eines zahnrades
US4165243A (en) * 1978-05-31 1979-08-21 Federal-Mogul Corporation Method of making selectively carburized forged powder metal parts
FR2436282A1 (fr) * 1978-09-18 1980-04-11 Glaenzer Spicer Sa Tulipe perfectionnee pour joint a tripode et procede pour sa fabrication
DE2851983B2 (de) * 1978-12-01 1980-11-06 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Verfahren zum Aufkohlen von Hohlkörpern, insbesondere von Düsen
US4664722A (en) * 1985-10-24 1987-05-12 Hughes Tool Company-Usa Method for protecting from hardening a selected region of a steel structure
US6074481A (en) * 1997-05-02 2000-06-13 Sikorsky Aircraft Corporation Masking tool for manufacturing precision gears
SE509941C2 (sv) * 1997-09-10 1999-03-29 Sandvik Ab Metod för att maskera borrelement vid termokemisk ytbehandling samt borrelement för slående borrning
FR2801905B1 (fr) * 1999-12-03 2002-02-01 Air Liquide Procede et installation de traitement de surface selectif
WO2001040533A1 (fr) * 1999-12-01 2001-06-07 L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Procede et installation de traitement de surface selectif
DE10038447C1 (de) * 2000-08-07 2002-07-11 Durferrit Gmbh Abdeckmassen für das partielle Aufkohlen von metallischen Bauteilen
DE10107810A1 (de) * 2001-02-20 2002-09-05 Bosch Gmbh Robert Vorrichtung zum partiellen Aufkohlen von Bauteilen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1072660A (en) * 1911-05-17 1913-09-09 Albert F Shore Case-hardening of steel.
US2520334A (en) * 1947-09-11 1950-08-29 Borg Warner Method of selective carburization
US3255005A (en) * 1962-06-29 1966-06-07 Tung Sol Electric Inc Masking process for semiconductor elements
US3578470A (en) * 1968-11-12 1971-05-11 Dov Bahat Bao-al2o3-sio2 glass-ceramic materials

Also Published As

Publication number Publication date
DE2207148A1 (de) 1973-08-30
FR2172261B1 (enExample) 1976-05-14
DE2207148B2 (de) 1975-10-16
US3873376A (en) 1975-03-25
FR2172261A1 (enExample) 1973-09-28
IT977241B (it) 1974-09-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee