Brass castings uye bronze castings ese ari endarira-based alloy castings anogona kukandwa nawokukanda jechauye nzira dzekutsvaga mari. Brass ialloy inoumbwa nemhangura uye zinc. Brass inoumbwa nemhangura uye zinc inonzi yakajairika brass. Kana iri mhando yealloys inoumbwa nezvinhu zvinopfuura zviviri, inonzi yakakosha brass. Brass isimbi yemhangura ine zingi sechinhu chikuru. Sezvo zinc yemukati inowedzera, simba uye plastiki yealloy inowedzera zvakanyanya, asi michina yemagetsi inoderera zvakanyanya mushure mekupfuura 47%, saka iyo zinc yendarira iri pasi pe47%. Kuwedzera kune zinc, ndarira yakakandwa kazhinji ine alloying zvinhu zvakaita sesilicon, manganese, aluminium, uye lead.
Izvo Brass neBronze Zvatinokanda
• China Standard: H96, H85, H65, HPb63-3, HPb59-1, QSn6.5-0.1, QSn7-0.2
• USA Standard: C21000, C23000, C27000, C34500, C37710, C86500, C87600, C87400, C87800, C52100, C51100
• European Standard: CuZn5, CuZn15, CuZn35, CuZn36Pb3, CuZn40Pb2, CuSn10P1, CuSn5ZnPb, CuSn5Zn5Pb5
| Alloy | Muumbi weKemikari (%) | Applications | |||
| Mhangura | Tin | Zinc | Vamwe | ||
| Pfuti Metal | 88 | 10 | 2 | / | Bearings, Bushes |
| Bronze | 89 | 11 | / | / | Bearings |
| Phosphor bronze | 89.5 | 10 | / | P=0.5 | Bearings, Springs |
| Bell bronze | 75-80 | 20-25 | / | / | Mabhero |
| Admiralty brass | 70 | 1 | 29 | / | Heat Exchangers |
| Gilding simbi | 85 | / | 15 | / | Mari dzesimbi |
| Naval brass | 60 | 1 | 39 | / | Marine Applications |
| Cartridge ndarira | 70 | / | 30 | / | Kudhirowa kwakadzika |
| Clock ndarira | 58-60 | / | 38-40 | Pb=1.5-2.5 | Zvikamu zvewachi nemifananidzo |
| Aluminium ndarira | 76 | / | 22 | Al=2 | Marine Applications |
Cast brass ine yakakwirira mechanical zvivakwa kupfuura bronze, asi mutengo wakaderera pane bhuronzi. Cast brass inowanzo shandiswa kune chinangwa chakajairwa kutakura makwenzi, mabhuranzi, magiya uye zvimwe zvisingapfekeri zvikamu uye mavharuvhu uye zvimwe zvikamu zvinodzivirira kuora. Brass ine simba rekuramba kupfeka. Brass inowanzoshandiswa kugadzira mavharuvhu, pombi dzemvura, mapombi ekubatanidza emukati nekunze emhepo inofefetera, uye maraya.
Hunhu hweBronze Castings uye Brass Castings:
• Yakanaka fluidity, shrinkage yakakura, diki crystallization tembiricha renji
• Inowanzoita kunyura
• Brass uye bronze castings vane zvakanaka kusapfeka uye kusagadzikana kwemarara
• Mamiriro ekuumbwa kwemhangura nebhuronzi akafanana nekukanda simbi
