1. Khoom lag luam, ntuj tsim
Pob zeb yog lub ntuj tsim. Tom qab raug txiav thiab polished, tsuas yog cov duab lossis daim ntawv tau hloov, tab sis cov khoom siv nws tus kheej tsis tau hloov. Ceramic vuas zeb zeb txiav tshuab yog ua los ntawm refractory hlau oxides thiab semi-hlau oxides los ntawm cov txheej txheem ntawm kev sib tsoo, sib xyaw, nias, ci, thiab sintering los ua cov kua qaub-thiab alkali-resistant cov plooj (veneers) lossis cov khoom siv pob zeb. Cov ntaub ntawv nyoos feem ntau yog sib xyaw nrog av nplaum, quartz marble pobzeb cutter tshuab xuab zeb, thiab lwm yam, uas yog cov pob zeb artificial tsim tom qab kev hloov tshuaj, thiab yog cov tshuaj tshiab tsim los ntawm kev hloov tshuaj ntawm cov xuab zeb, pob zeb, thiab av.
2. Kev siv ua tau, lub tsev pob zeb yog tsis txawj tuag
Piv nrog rau lwm tus neeg tsim cov ntaub ntawv tsim vaj tsev, ntuj mos lwj muaj txiaj ntsig kev lag luam tsis muaj txiaj ntsig. Raws li cov khoom lag luam ntau pua pua xyoo ntawm geological evolution, marble tuaj yeem muaj kev pabcuam lub neej nyob rau pua pua xyoo. Ntau lub tsev txua ntoo txua lub pob zeb zeb txua lub cav rov qab los ntawm ntuj ntoo hauv keeb kwm muaj ntau txhiab xyoo, xws li Greek tuam tsev thiab txheej thaum ub Roman Colosseum, uas muaj keeb kwm ntev dua 2,000 xyoo.
Ob qhov tseem ceeb ntawm" kho tiav tau" thiab" kho tau" ua marble ntau ruaj thiab zoo nkauj dua, uas yog tsis muaj nyob rau hauv lwm yam lwm yam ntaub ntawv tsev.
3. Thermal expansion coefficient, pob zeb tsis yooj yim rau deform
Cov pob zeb feem ntau yog coj los ntawm lub ntuj cnc granite tej tshuab slate txiav tshuab ntiaj teb, lawv lub cev thiab tshuaj lom neeg lub zog yog qhov ruaj khov heev, cov coefficient ntawm thermal expansion yog me me, thiab muaj cov khoom lag luam me deformation vim kev hloov kub.
Lub tshav kub nthuav dav granite txiav thiab polishing tshuab coefficient ntawm cov vuas luaj ceramic yog qhov loj, uas yooj yim rau cov khoom lag luam deformation, tshwj xeeb tshaj yog thaum lub caij ntuj no, qhov tshwm sim ntawm cov pobzeb arching yog txiav thiab polishing marble yooj yim tshwm sim.
