Peb nquag siv txhua yam iav fwj hauv peb lub neej. Cov iav fwj yog qhov zoo nkauj thiab siv tau. Lawv tuaj yeem tsis tsuas yog ua rau tib neeg nyiam nrog lawv cov duab zoo nkauj, tab sis kuj tseem siv tag nrho lawv lub zog thiab lub cev ruaj khov. Tab sis, koj puas paub tias lub raj mis iav tau tsim li cas?
Cov txheej txheem ntau lawm ntawm cov iav fwj:
1. Ua ntej ua cov khoom raw. Zuaj ntau cov ntaub ntawv raw (quartz xuab zeb, tshauv tshauv, limestone, feldspar, thiab lwm yam) kom qhuav cov khoom ntub ntub, thiab tshem tawm cov hlau los ntawm cov hlau uas muaj cov khoom siv kom ntseeg tau tias iav zoo.
2. Kev npaj ua pawg.
3. yaj. Cov iav cov khoom siv ua kom sov ntawm qhov kub siab (1550 ~ 1600 degrees) hauv lub pas dej ua ke lossis lub pas dej ua ke kom tsim tau ib yam, tsis muaj npuas ua kua iav uas ua tau raws li qhov xav tau molding.
4. Ua. Muab cov kua iav tso rau hauv pwm kom ua cov iav khoom ntawm qhov yuav tsum tau ua. Feem ntau, preform tau tsim ua ntej, thiab tom qab ntawd preform tau tsim rau hauv lub raj mis lub cev.
5. Kev kho cua sov. Los ntawm kev txhuam, tua thiab lwm yam txheej txheem, sab hauv kev ntxhov siab, theem sib cais lossis sib xyaw ua ke ntawm cov iav raug ntxuav lossis tsim tawm, thiab lub xeev txheej txheem ntawm iav tau hloov pauv.
