GB906518A - Process for the low-distortion hardening of components - Google Patents

Process for the low-distortion hardening of components

Info

Publication number
GB906518A
GB906518A GB804260A GB804260A GB906518A GB 906518 A GB906518 A GB 906518A GB 804260 A GB804260 A GB 804260A GB 804260 A GB804260 A GB 804260A GB 906518 A GB906518 A GB 906518A
Authority
GB
United Kingdom
Prior art keywords
components
low
distortion
teeth
hours
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
GB804260A
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen 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
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of GB906518A publication Critical patent/GB906518A/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
    • C23C8/80—After-treatment

Abstract

Parts of a component, e.g. the teeth of a gear-wheel, are hardened by soft nitriding followed by induction hardening. The teeth may be preliminarily case hardened with carbon. The nitriding may be carried out in a bath for 1-3 hours or in ammonia gas for up to 10 hours at 500-600 DEG C. It is stated that the components so treated are resistant to distortion when in use.
GB804260A 1959-03-07 1960-03-07 Process for the low-distortion hardening of components Expired GB906518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ0007187 1959-03-07

Publications (1)

Publication Number Publication Date
GB906518A true GB906518A (en) 1962-09-19

Family

ID=7620033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB804260A Expired GB906518A (en) 1959-03-07 1960-03-07 Process for the low-distortion hardening of components

Country Status (1)

Country Link
GB (1) GB906518A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4221958C1 (en) * 1992-07-02 1993-11-18 Mannesmann Ag Method for producing a gear element of a pinion shaft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4221958C1 (en) * 1992-07-02 1993-11-18 Mannesmann Ag Method for producing a gear element of a pinion shaft
EP0579344A1 (en) * 1992-07-02 1994-01-19 MANNESMANN Aktiengesellschaft Method of manufacturing a gearwheel element of a pinion shaft

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