Spinnerette from gold-platinum-palladium-rhodium alloy
AssigneeElephant Edelmetaal B.V.
InventorJoseph M. van der Zel
Life of this patent
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Abstract
A spinneret consisting essentially of an alloy consisting essentially of from 30-80 wt. % gold, 1-60 wt. % platinum, 1-50 wt. % palladium, 0.1-5 wt. % rhodium and 0-0.4 wt. % iridium and/or ruthenium, said alloy having a VICKERS hardness of from 145-340 after treatment for 5 hours at a temperature of from 500.degree.-650.degree. C.
Claims2
A spinneret consisting essentially of an alloy consisting essentially of 50-70 wt. % gold, 20-40 wt. % platinum, 5-20 wt. % palladium, 0.3-1.5 wt. % rhodium and 0-0.4 wt. % of at least one selected from the group consisting of iridium and ruthenium, said alloy having a Vickers hardness of from 145-340.
Dependencies are inferred from the claim text.