COPPER BASE ALLOY, MORE PARTICULARLY FOR THE MANUFACTURE OF SPECTACLE FRAMES, ORNAMENTS ETC

A copper-manganese-zinc-aluminium alloy, especially for production of spectacle frames, jewellery and other body-contacting metal parts which are worn on the body or attached to clothing, has the composition (by wt.) 3-7 (preferably 4.5-5.5)% Zn, 8-13 (preferably 10-11)% Mn, 0.5-3.5 (preferably 1.8-...

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Bibliographische Detailangaben
Hauptverfasser:	RECHTZIEGEL, BRUNO, FACKERT, JURGEN, TAUBER, KLAUS
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BRACELETS CHEMISTRY COINS CONTACT LENSES FERROUS OR NON-FERROUS ALLOYS HABERDASHERY HUMAN NECESSITIES JEWELLERY METALLURGY OPTICS OTHER PERSONAL ADORNMENTS PHYSICS SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A copper-manganese-zinc-aluminium alloy, especially for production of spectacle frames, jewellery and other body-contacting metal parts which are worn on the body or attached to clothing, has the composition (by wt.) 3-7 (preferably 4.5-5.5)% Zn, 8-13 (preferably 10-11)% Mn, 0.5-3.5 (preferably 1.8-2.3)% Fe, 4.5-8.0 (preferably 6.0-6.5)% Al and balance Cu. Also claimed are jewellery, spectacle frames or frame components, metal parts for clothing, and semi-finished products or stock material (especially wire, strip or bar) produced from the above alloy.