- 02
- Oct
Muaj ntau npaum li cas tuaj yeem mullite lub teeb rwb thaiv tsev cib tuaj yeem tiv taus?
Muaj ntau npaum li cas tuaj yeem mullite lub teeb rwb thaiv tsev cib tuaj yeem tiv taus?
Mullite rwb thaiv tsev cib yog hom tshiab ntawm cov khoom siv hluav taws xob, uas tuaj yeem hu ncaj qha rau nplaim taws. Nws muaj cov yam ntxwv ntawm qhov kub tsis kam tiv taus, ua kom pom kev siab, tsis muaj cua sov ua kom sov, thiab txuag lub zog tseem ceeb. Mullite cov khoom siv hluav taws xob rwb thaiv tsev muaj cov yam ntxwv ntawm kev ua haujlwm kub zoo thiab tus nqi qis. Lawv tuaj yeem siv rau qhov cub tawg, uas tuaj yeem tsis tsuas yog txo qhov ua tau zoo ntawm lub cev rauv, txuag hluav taws, tab sis kuj tseem txuas ntxiv lub neej kev pabcuam ntawm lub qhov cub tawg thiab txo nqi txij nkawm.
Mullite lub teeb rwb thaiv tsev cib feem ntau yog ua los ntawm bauxite, av nplaum, “peb lub pob zeb”, thiab lwm yam, los ntawm kev tsim cov lej sib txuas lossis kaw qhov hws ntau hauv cov khoom siv moulding lossis cov txheej txheem kub kub.
Nta ntawm mullite lub teeb rwb thaiv tsev cib:
Muaj ntau npaum li cas tuaj yeem mullite lub teeb rwb thaiv tsev cib tuaj yeem tiv taus? Qhov kub siab tiv taus ntawm mullite lub teeb rwb thaiv tsev cib tuaj yeem ncav siab tshaj 1790 ℃. Qhov pib ua kom sov pib kub yog 1600-1700 ℃, qhov ntsuas kub ib txwm muaj zog yog 70-260MPa, cov cua sov ua kom tsis zoo yog qhov zoo, lub zog siab, qhov kub siab nkag mus qis yog tsawg, nthuav dav coefficient qis, thermal coefficient yog me me, thiab cov kua qaub slag tiv taus. Thiab nws tuaj yeem txo qhov hnyav ntawm lub tshuab ua kom sov lub cev kub, hloov pauv cov qauv, txuag cov ntaub ntawv, txuag lub zog, thiab txhim kho kev ua haujlwm tau zoo.
Daim ntawv thov ntau ntawm mullite lub teeb rwb thaiv tsev cib:
Mullite cov khoom siv hluav taws xob rwb thaiv tsev feem ntau yog siv rau qhov kub thiab txias ntau tshaj 1400 ℃, cov cua kub cua sov rauv, cov cua sov ua ntej, cov tsev tsim hluav taws xob, cov txheej txheem ntawm cov iav tawg rauv, cov khoom siv hluav taws xob ua hluav taws xob, cov khoom siv hluav taws xob rauv, qhov cub qhov av, Sab hauv sab hauv ntawm cov plag tsev hluav taws xob tub rau khoom tub rau khaub ncaws, lub kaum tsev tuag rauv ua kom tawg ntawm cov roj tawg, lub qhov cub tawg iav thiab ntau lub qhov cub hluav taws xob tuaj yeem hu ncaj qha rau nplaim taws.
Lub cev thiab tshuaj ntsuas ntawm mullite lub teeb rwb thaiv tsev cib:
| Index/Khoom Qhia Tshwj Xeeb | ρ = 0.8 | ρ = 1.0 | ρ = 1.2 |
| Kev faib tawm kub （℃ | 1400 | 1550 | 1600 |
| Al2O3 （%） ≥ | 50 ~ 70 | 65 ~ 70 | 79 |
| Fe2O3 （%） ≤ | 0.5 | 0.5 | 0.5 |
| Kev ceev ntau (g / cm3) | 0.8 | 1.0 | 1.2 |
| Lub zog loj ntawm chav sov (Mp) | 3 | 5 | 7 |
| Kev ua kom sov (350 ℃) W/(mk) | 0.25 | 0.33 | 0.42 |
| Load softening kub (℃) (0.2 Mp, 0.6%) | 1400 | 1500 | 1600 |
| Ua kom sov hloov pauv tus nqi% (1400 ℃ × 3h) | ≤0.9 | ≤0.7 | ≤0.5 |
| Kev siv sijhawm ntev (℃) | 1200 ~ 1500 | 1200 ~ 1550 | 1500-1700 |