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ResearchProgressofFree£ÇCuttingUnleadedBismuthBrassforSanitaryWareIndustry
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Abstract:Theresearch progressoffree£Çcutting unleaded bismuth brassforsanitary wareindustryis
summarizedfromthepointofindustrialization£®Thechemicalcomposition,propertyandpracticalproductionofthree
typesofbismuthbrassesincludingbismuth£Çselenium brass,bismuth£Çtinbrassandbismuth£Çaluminum brassare
highlighted£®Thebismuthbrasscanpartiallyreplacethetraditionalleadbrassforthesanitarywareproducts£®The
relativelymatureproductionmethodsarecasting,directmachiningandcoldbending,whilethemethodssuchashot
stamping,hotforgingandweldingstillremaintobefurtherstudied£®Thefutureresearchshouldbefocusedonthe
improvementofthehotpunchingpropertyofbismuthbrass£®
Keywords:unleadedbismuthbrass;free£Çcutting;chemicalcomposition;property
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