发明名称 SULFUR TREATMENT FOR COPPER ZINC ALLOYS
摘要 A method of making a corrosion resistant brass component that includes the steps: forming a gaseous atmosphere containing labile sulfur by combustion of potassium bisulfate or hydrogen sulfide; and contacting surfaces of a finished brass component with the gaseous atmosphere containing labile sulfur. The surfaces of the brass component are contacted with the gaseous atmosphere at an elevated temperature for a time sufficient to form a metal-sulfide rich layer of at least 5 microns in thickness. Further, the brass component is corrosion resistant after the contacting step as determined by standardized testing that yields dezincification penetration of less than 200 microns in depth.
申请公布号 EP2702180(A4) 申请公布日期 2014.11.05
申请号 EP20120777313 申请日期 2012.04.24
申请人 NIBCO INC. 发明人 LAWRENCE, BENJAMIN, L.
分类号 C23C8/42;C23C8/08 主分类号 C23C8/42
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