Tus phooj ywg zoo yog ib tug kws txawj paub lus Fabkis zoo li cas, xyoo 1794, tau tsim tus qauv siv cwj mem niaj hnub. Txij thaum ntawd los, tus qauv tsim thiab ua haujlwm ntawm tus xaum qhuav tau zoo dua, thiab txhua txoj hauv kev ntse ntse tau tsim, uas, ua ke nrog lub hardness ntawm tus pas nrig, tso cai rau koj kom tau txais ntau yam teebmeem.
Nws yog qhov tsim nyog
Mem hluav, rab khaub ncaws ntse, xwm yeem thiab ntawv sau riam, rab chais hniav, tawv qhwv, ntawv dawb
Cov Lus Qhia
Kauj ruam 1
Yog tias koj siv tus xaum ntawv rau lub hom phiaj yooj yim, xws li qhia txog qee yam lossis sau ntawv rau ib ntus, tom qab ntawd xaiv tus xaum qhuav tawv (TM) lossis muag muag (2M). Txhawm rau kom ntse nws, siv ib rab ntsuas ib qho dog dig, uas tuaj yeem muas hauv khw muag khoom sau. Yuav ib qho uas yooj yim siv. Txhawm rau kom tsis txhob rhuav lub caj dab ntawm tus xaum, ntawm qhov nruab nrab 3-4 lem tau ua. Tsis tas li, kom tsis txhob tawg, tsis txhob ua kom lub zog ntawm cov xaum thiab nruj dua.
Kauj ruam 2
Nws yog lwm qhov teeb meem yog tias koj muab ib qho xaum qhuav tsim rau kev kos duab lossis kos duab. Kev hlov kom raug yog lub hauv paus ntawm koj kev ua haujlwm. Muaj peb lub ntsiab. Txhawm rau ua lawv, rab riam zoo tib yam thiab tus cwj pwm, rab chais plaub hau, thiab khuam khuam yog siv. Qee zaum koj tuaj yeem siv rab txhuam kom pib hliav. Thaum ua haujlwm ntawm daim duab, nws yog qhov yuav tsum tau txiav caj dab thiab tsob ntoo nyob rau hauv pem hauv ntej nws kom ntse dua li 10-15 hli. Qhov no tsis tuaj yeem ua tiav nrog tus ntse ib leeg.
Kauj ruam 3
Cov hom hliav.
1. Lub hau tau ua kom zoo ib yam yog tias koj siv tus hliav. Qhov sib txawv yog qhov ntev ntawm lub caj dab thiab nteg ntoo pem hauv ntej caj dab.
2. Lub taub muaj qhov dav thiab ntse. Hauv qhov no, tsuas yog ntoo txiav tawm, lub graphite hauv daim duab ntawm lub voj voos tseem tsis muaj xwm txheej. Lub taub yog blunt rau ntawm ntawv ci thiab ces ironed ntawm daim ntawv dawb. Nyob ntawm txoj hauj lwm ntawm lub xaum sib thooj rau cov ntawv, tus kws kos duab tau txais ib txoj kab nyias lossis tuab.
3. Qhov taub yog zoo li tus txiav. Lub caj dab tuab yog honed nrog sandpaper rau ntawm ob sab. Qhov tseeb ntawm no yog siv kom tau ob hom kab.
Kauj ruam 4
Kev ntse yuav tsum ua siab ntev thaum xub thawj. Tsis txhob poob siab yog tias koj tsoo ntau xaum (tshwj xeeb yog cov tawv muag). Ntev dhau mus, cov txuj ci yuav tuaj, thiab koj yuav hnov ntau npaum li cas millimeters nws raug nqi los ua kom ntse nrog lub ntsej muag riam, thiab ntau npaum li cas los sau nrog sandpaper.
