Kev sib xyaw ua ke ntawm aluminium alloy tuag casting thiab casting zoo
Lub zog nqus tshwj xeeb
1. Kev ua tau zoo casting, tuaj yeem tuag casting complex duab, nyias-walled precision qhov chaw, casting nto yog du.
2. Kev kho qhov chaw yog xaiv tau: plating, txau, pleev xim, polishing, sib tsoo, thiab lwm yam.
3. Tsis muaj hlau nqus thaum lub sijhawm kev tuag casting, tsis muaj corrosion molding, tsis lo rau pwm.
4. Nws muaj cov khoom siv kho tshuab zoo thiab hnav tsis kam ntawm chav tsev kub.
5. qis melting point, melting point 385 ℃, yooj yim rau tuag casting. Ceev faj thaum siv:
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Kev Tiv Thaiv Corrosion Tsis Zoo
Thaum cov khoom sib xyaw ua ke ntawm cov khoom tsis huv xws li lead, cadmium, thiab tin tshaj qhov tus qauv, qhov casting yuav tshwm sim kev laus deformation, uas qhia tau tias yog kev nthuav dav ntawm ntim, cov khoom siv kho tshuab, tshwj xeeb tshaj yog plasticity txo qis, thiab txawm tias tawg tom qab siv sijhawm ntev.
Cov hlau lead, tin, cadmium nyob rau hauv txhuas hlau Kev yaj me me heev, yog li lawv tau sib sau ua ke hauv cov ciam teb ntawm cov noob kom dhau los ua cathode, cov khoom siv nplua nuj ntawm txhuas los ua anode, nyob rau hauv qhov muaj cov pa dej los txhawb kev xeb hluav taws xob intergranular. (Electrolyte). Cov castings tuag yog laus vim yog kev xeb intergranular.
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Kev Laus Zog
Lub koom haum ntawm zinc alloy feem ntau yog ua los ntawm cov khoom muaj zinc nplua nuj uas muaj Al thiab Cu thiab Al nplua nuj uas muaj Zn, thiab lawv cov solubility txo qis nrog qhov kub thiab txias txo qis. Txawm li cas los xij, vim yog qhov khov sai heev ntawm kev tuag casting, qhov solubility ntawm cov khoom khov tau saturated heev ntawm chav tsev kub. Tom qab ib lub sijhawm, qhov xwm txheej oversaturation no yuav maj mam txo qis, cov duab thiab qhov loj ntawm casting yuav hloov me ntsis.
Zinc alloy tuag casting Yuav tsum tsis txhob siv rau qhov kub thiab txias siab thiab qis (0 ℃ qis dua) qhov chaw ua haujlwm. Zinc alloy muaj cov khoom siv kho tshuab zoo dua ntawm chav tsev kub. Txawm li cas los xij, lub zog tensile kub siab thiab cov khoom cuam tshuam kub qis raug txo qis heev.
