CH561439A - Copper-zinc-beryllium-lead alloy - for clock components and watch cases - Google Patents

Copper-zinc-beryllium-lead alloy - for clock components and watch cases

Info

Publication number
CH561439A
CH561439A CH1392072A CH1392072A CH561439A CH 561439 A CH561439 A CH 561439A CH 1392072 A CH1392072 A CH 1392072A CH 1392072 A CH1392072 A CH 1392072A CH 561439 A CH561439 A CH 561439A
Authority
CH
Switzerland
Prior art keywords
beryllium
zinc
copper
lead alloy
watch cases
Prior art date
Application number
CH1392072A
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 filed Critical
Priority to CH1392072A priority Critical patent/CH561439A/en
Priority to CH1392072D priority patent/CH1392072A4/xx
Publication of CH561439A publication Critical patent/CH561439A/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/0074—Watchmakers' or watch-repairers' machines or tools for working materials for treatment of the material, e.g. surface treatment
    • G04D3/0097—Watchmakers' or watch-repairers' machines or tools for working materials for treatment of the material, e.g. surface treatment for components of the means protecting the mechanism against external influences, e.g. cases
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases

Abstract

The alloy having the compsn. 29-35% Zn, 0.5-0.8% Be, 1-3% Pb, balance Cu, a tensile strength of 40-85 kg/mm2 and elongation 40%, is shaped into watch parts or casings by stamping and/or pressing. A heat treatment is applied before and/or after shaping, for example by heating for 1-3 hr. at 700-900 degrees C and then quenching in water. Prefd. compsn. is 32% Zn, 0.6% Be, 2% Pb, 65.4% Cu.
CH1392072A 1972-09-21 1972-09-21 Copper-zinc-beryllium-lead alloy - for clock components and watch cases CH561439A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH1392072A CH561439A (en) 1972-09-21 1972-09-21 Copper-zinc-beryllium-lead alloy - for clock components and watch cases
CH1392072D CH1392072A4 (en) 1972-09-21 1972-09-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1392072A CH561439A (en) 1972-09-21 1972-09-21 Copper-zinc-beryllium-lead alloy - for clock components and watch cases

Publications (1)

Publication Number Publication Date
CH561439A true CH561439A (en) 1975-04-30

Family

ID=4396476

Family Applications (2)

Application Number Title Priority Date Filing Date
CH1392072A CH561439A (en) 1972-09-21 1972-09-21 Copper-zinc-beryllium-lead alloy - for clock components and watch cases
CH1392072D CH1392072A4 (en) 1972-09-21 1972-09-21

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH1392072D CH1392072A4 (en) 1972-09-21 1972-09-21

Country Status (1)

Country Link
CH (2) CH561439A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3208664B1 (en) * 2016-02-19 2023-08-16 Omega SA Timepiece mechanism or clock without magnetic signature

Also Published As

Publication number Publication date
CH1392072A4 (en) 1974-10-31

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