Kusungunula katundu wa malata mkuwa

Zoyipa zowononga kwambiri mumkuwandi aluminium, silicon ndi magnesium.Zomwe zili pamwambazi zikadutsa 0.005%, zotsatira za SiO2, MgO ndi Al2O3 oxide inclusions zidzasokoneza kusungunuka ndi kuchepetsa ntchito ya mbali zina za alloy.

Mukasungunula malata amkuwa, popeza nsonga yowira ya zinki ndiyotsika kwambiri ndipo imalumikizana kwambiri ndi okosijeni, kusungunulako kumayenera kusungunuka ndikuyikidwa mu ng'anjo kuti isungunuke.Chuangrui tin bronze mbale imatha kuwonjezera deoxidation, zomwe zimathandiza kwambiri kupewa Kuopsa kopanga SnO2.Zinc ndi phosphorous mu sungunuka zimakhala ndi dongosolo la deoxidation, ndipo zotsatira za 2ZnO · P2O5 zimakhala zosavuta kupatukana ndi kusungunuka, ndipo ndizopindulitsa kupititsa patsogolo kusungunuka kwa madzi.

Kugwiritsa ntchito chowotcha chowuma, kapena kutenthetsanso chiwongolero choyamba musanasungunuke, kumatha kuchepetsa kapena kupeweratu kutulutsa mpweya pakusungunuka.Kuchuluka koyenera kwazitsulo zatsopano ndi zinyalala zomwe zimapangidwira zimathandiziranso kusungunuka kokhazikika.Kuchuluka kwa zinyalala zamachitidwe siziyenera kupitilira 20% mpaka 30%.Kusungunula komwe kumakhala koipitsidwa pang'ono ndi zonyansa kumatha kupangidwa ndi okosijeni mwa kuwomba mpweya kapena powonjezera oxidant (monga copper oxide CuO).Zinyalala zomwe zaipitsidwa kwambiri ndi zinthu zina zosadetsedwa zimatha kuyengedwa ndi zosungunulira kapena mpweya wa inert, kuphatikizapo kusungunulanso, kuti ukhale wabwino.

Njira zoyenera zodyetsera ndi kusungunula, kuphatikizapo kusungunula ndi ng'anjo yotenthetsera yachitsulo-nthawi zambiri yokhala ndi kusungunula kolimba, ndizopindulitsa kuchepetsa ndi kupewa tsankho.Kuonjezera chiwerengero choyenera cha nickel kusungunuka kumathandizira kufulumizitsa kulimbitsa ndi crystallization liwiro la kusungunuka, ndipo kumakhala ndi zotsatira zina zochepetsera ndi kupewa tsankho.Zowonjezera zofanana, zirconium ndi lithiamu zingathenso kusankhidwa.Njira yosakanikirana yosungunula padera yosungunula mkuwa wotsogolera kutsogolo ndikulowetsa kutsogolera kusungunuka kwa mkuwa pa 1150-1180 ° C ikhoza kutengedwa.Nthawi zambiri, kusungunula mkuwa wokhala ndi phosphorous nthawi zambiri kumakutidwa ndi zinthu zokhala ndi mpweya monga makala kapena petroleum coke popanda zosungunulira.Chophimba chomwe chimagwiritsidwa ntchito posungunula malata amkuwa okhala ndi zinki chiyeneranso kukhala ndi zinthu zokhala ndi mpweya monga makala.Pakuponyera kosalekeza, ndikofunikira kuwongolera kutentha kwapang'onopang'ono pa 100-150 ° C pamwamba pa alloy liquidus.