Zinc alloy tuag casting yog kev paub thiab dav siv tshuab, txais tos los ntawm ntau tus neeg siv khoom. Cia peb tham luv luv txog qee qhov teeb meem uas yuav tsum tau xav txog thaum siv zinc alloy tuag casting:
1. Tsis zoo corrosion kuj.
Feem ntau, thaum impurities nyob rau hauv cov alloy muaj pes tsawg leeg, xws li txhuas, cadmium, thiab tin, tshaj tus qauv, nws ua rau aging thiab deformation ntawm casting. Qhov no manifests li nruam ntim expansion thiab ib tug tseem ceeb thiab tsis tu ncua txo nyob rau hauv mechanical zog, tshwj xeeb tshaj yog plasticity. Nyob rau tib lub sijhawm, qhov no tuaj yeem ua rau tawg.
2. Cov teebmeem ntawm kev laus.
Lub microstructure ntawm zinc alloys feem ntau yog tsim los ntawm zinc- nplua nuj cov ntsiab lus uas muaj Al thiab Cu, thiab Al- nplua nuj cov ntsiab lus muaj Zn. Lub solubility ntawm cov khoom no txo qis nrog txo qhov kub thiab txias. Txawm li cas los xij, vim yog qhov ceev ceev ceev ntawm cov tuag castings, cov solubility ntawm cov khoom yog feem ntau saturated nyob rau hauv chav tsev kub. Txawm li cas los xij, tom qab qee lub sijhawm, qhov tshwm sim oversaturation yuav maj mam txo qis, ua rau muaj kev hloov pauv me ntsis ntawm cov duab thiab qhov loj ntawm cov casting.
3. Zinc alloy tuag castings feem ntau tsis haum rau siv nyob rau hauv siab - kub los yog qis - kub (qis dua 0℃) ua hauj lwm ib puag ncig. Zinc alloys muaj cov khoom siv kho tshuab zoo ntawm chav tsev kub. Txawm li cas los xij, lawv lub zog tensile txo qis heev ntawm qhov kub thiab txias thiab lawv cov kev cuam tshuam tsis kam txo qis hauv qhov kub thiab txias.
