Cov yam ntxwv ntawm Zinc Alloys
Thaum cov khoom tsis huv xws li txhuas, cadmium, thiab tin tshaj qhov txwv ntawm cov khoom sib xyaw, nws ua rau cov khoom casting laus thiab deform, qhia tau tias yog qhov ntim nthuav dav thiab poob qis hauv cov khoom siv kho tshuab - tshwj xeeb tshaj yog plasticity - thiab tej zaum yuav ua rau tawg dhau sijhawm. Cov txhuas, tin, thiab cadmium muaj cov solubility qis heev hauv cov zinc alloys thiab yog li ntawd sib sau ua ke ntawm cov ciam teb ntawm cov noob, ua haujlwm ua cathodes, thaum cov khoom siv aluminium-nplua nuj ua haujlwm ua anode. Thaum muaj cov dej vapor (electrolyte), qhov no txhawb kev xeb hluav taws xob intergranular. Cov khoom die-cast laus vim yog kev xeb intergranular.
Cov qauv me me ntawm cov zinc alloys feem ntau yog cov khoom muaj zinc nplua nuj uas muaj Al thiab Cu, thiab cov khoom muaj Al nplua nuj uas muaj Zn. Lawv qhov solubility txo qis thaum qhov kub poob qis. Txawm li cas los xij, vim yog qhov nrawm nrawm ntawm cov khoom tuag-casting, qhov solubility ntawm cov khoom khov no feem ntau yog saturated thaum lub sijhawm uas qhov khoom mus txog chav tsev kub. Tom qab ib lub sijhawm, qhov kev supersaturation no maj mam ploj mus, ua rau muaj kev hloov pauv me ntsis hauv cov duab thiab qhov loj ntawm casting.
Cov zinc alloy tuag-castings yuav tsum tsis txhob siv rau hauv qhov kub siab lossis qis dua 0 ° C) qhov chaw ua haujlwm. Cov zinc alloys muaj cov khoom siv kho tshuab zoo ntawm chav tsev kub. Txawm li cas los xij, lub zog tensile txo qis heev ntawm qhov kub siab, thiab lub zog cuam tshuam txo qis heev ntawm qhov kub qis.
Hom Zinc Alloys
| Hom hlau nplaum | Cov yam ntxwv & Daim ntawv thov |
|---|---|
| Zamak 3 | Zoo fluidity thiab mechanical zog. Siv rau castings nrog tsawg mechanical zog, xws li cov khoom ua si, teeb pom kev zoo, kho kom zoo nkauj, thiab qee yam khoom hluav taws xob. |
| Zamak 5 | Zoo fluidity thiab zoo heev mechanical zog. Siv rau castings nrog nruab nrab mechanical zog xav tau, xws li automotive qhov chaw, electromechanical Cheebtsam, mechanical qhov chaw, thiab hluav taws xob Cheebtsam. |
| Zamak 2 | Siv rau cov khoom siv kho tshuab nrog cov kev cai tshwj xeeb ntawm kev ua haujlwm kho tshuab, qhov yuav tsum tau ua kom tawv, thiab qhov yuav tsum tau ua kom raug qhov ntev. |
| ZA8 | Zoo fluidity thiab dimensional stability, tab sis fluidity tsis zoo. Siv rau die-casting me me workpieces nrog high precision thiab mechanical strength xav tau, xws li hluav taws xob Cheebtsam. |
| Superloy | Kev ua kua zoo tshaj plaws, siv rau kev tuag-casting nyias-walled, loj-loj, siab-precision, thiab cov khoom ua haujlwm nyuaj, xws li cov khoom siv hluav taws xob thiab lawv cov enclosures. |
Cov zinc alloys sib txawv muaj cov khoom siv lub cev thiab cov khoom siv kho tshuab sib txawv, muab kev ywj pheej hauv kev tsim cov khoom siv tuag-cast.
Kev Xaiv Cov Zinc Alloys
Qhov kev xaiv ntawm zinc alloy yog txiav txim siab los ntawm peb yam tseem ceeb:
Lub zog tensile, uas yog qhov siab tshaj plaws ntawm cov khoom siv ua ntej tawg; elongation, uas ntsuas qhov sib npaug ntawm brittleness thiab ductility; thiab hardness, uas yog qhov tsis kam ntawm cov khoom siv rau qhov deformation yas los ntawm indentation lossis kev sib txhuam los ntawm ib yam khoom tawv.
Kub ua haujlwm, av noo, xov xwm uas cov workpiece kov, thiab cov kev cai airtightness.
Kev ua tiav qhov tseeb thiab qhov ruaj khov.
Kev Tswj Xyuas Cov Khoom Siv Zinc Alloy
| Khoom | Zamak 2 | Zamak 3 | Zamak 5 | ZA8 | Superloy | AcuZinc 5 |
|---|---|---|---|---|---|---|
| Aluminium | 3.8 ~ 4.3 | 3.8 ~ 4.3 | 3.8 ~ 4.3 | 8.2 ~ 8.8 | 6.6 ~ 7.2 | 2.8 ~ 3.3 |
| Tooj liab | 2.7 ~ 3.3 | <0.030 | 0.7 ~ 1.1 | 0.9 ~ 1.3 | 3.2 ~ 3.8 | 5.0 ~ 6.0 |
| Magnesium | 0.035 ~ 0.06 | 0.035 ~ 0.06 | 0.035 ~ 0.06 | 0.02 ~ 0.035 | <0.005 | 0.025 ~ 0.05 |
| Hlau | <0.020 | <0.020 | <0.020 | <0.035 | <0.020 | <0.075 |
| Cov hlau lead | <0.003 | <0.003 | <0.003 | <0.005 | <0.003 | <0.005 |
| Cadmium | <0.003 | <0.003 | <0.003 | <0.005 | <0.003 | <0.004 |
| Tooj liab | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.003 |
| Zinc | seem | seem | seem | seem | seem | seem |
Lub sijhawm tshaj tawm: Plaub Hlis-23-2026
