Kev siv tshuab ua cov hniav nyiaj hniav kub yog siv cov quav ciab. Cov hniav nyiaj hniav kub yog dab tsi thiab yuav siv nws li cas? Txhawm rau teb cov lus nug no, koj yuav tsum paub cov theem ntawm kev tsim cov hniav nyiaj hniav kub.
Ua ib qho qauv ntawm cov khoom
Ua ntej cov hniav nyiaj hniav kub tiav ua ntej lub qhov muag ntawm tus tsim lossis cov neeg siv khoom, ntau lub sijhawm dhau mus. Raws li daim duab kos duab ntawm lub neej yav tom ntej jeweler, lub jeweler ua ntej tsim ib tug qauv siv quav ciab, raws li cov duab ntawm lub neej yav tom ntej jewels. Yav dhau los, tus kws tsim khoom siv tes ua yuav tsum tau txiav cov qauv tawm ntawm cov quav ciab manually. Nrog rau txoj kev loj hlob ntawm thev naus laus zis, nws tau dhau los ua cov txheej txheem no. Raws li cov khoom ua los ntawm wax, ib qho pwm rau casting yog tsim. Tom qab ntawd lub wax melts, tawm hauv voids. Cov hlau zoo nkauj twb tau nchuav rau hauv cov pwm tiav thiab tom qab khov kho, cov khoom raug xa mus rau kev kho zaum kawg.
Txoj kev tsim cov qauv siv quav ciab hu ua waxing. Ua tsaug rau cov txheej txheem waxing, cov khoom raug nrum nrog cov ntsiab lus me tshaj plaws. Cov thev naus laus zis niaj hnub no ua rau nws muaj peev xwm tsim cov khoom siv dag zog rauqauv geometrically complex qauv uas tsis tuaj yeem ua los ntawm tes. Rau qhov no, cov tshuab tshwj xeeb yog siv los rov tsim cov khoom lag luam thiab ua haujlwm zoo tshaj plaws.
Kev sib xyaw thiab cov khoom ntawm cov hniav nyiaj hniav kub
Cov khoom tshwj xeeb yog siv rau waxing. Nws yog ntau hom. Cov khoom tseem ceeb uas cov quav ciab zoo yuav tsum muaj:
- Muaj zog txaus tom qab kho kom tiv taus cov ntsiab lus zoo tom qab ua tiav;
- yuav tsum yaj yam tsis muaj tshauv seem thaum lub sij hawm pwm annealing;
- Cov qauv ntawm cov hniav nyiaj hniav kub yuav tsum yog thiab du thiab yuav tsum tsis txhob lo rau cov khoom molding;
- Lub ntsiab lus melting yuav tsum tsis pub tshaj 100 ° C thiab qhov muag muag yuav tsum tsis txhob qis dua 35 ° C.
Cov khoom sib xyaw ntawm cov hniav nyiaj hniav kub ciab muaj xws li cov khoom siv ntuj lossis cov khoom siv dag zog nrog kev sib ntxiv ntawm cov khoom siv tshuaj uas tsim nyog los hloov cov khoom siv kho tshuab. Cov muaj pes tsawg leeg ntawm cov quav ciab cuam tshuam cov khoom hauv qab no:
- hardness thiab softness;
- viscosity;
- elasticity;
- mechanical nco;
- melt fluidity;
- kev sib cuam tshuam nrog cov ntaub ntawv molding;
- setting ceev;
- shrinkage;
- vim;
- melting point.
Raws li cov hom phiaj, tus jeweler xaiv cov ntaub ntawv tsim nyog rau kev ua haujlwm. Tej zaum yuav muaj xwm txheej thaum tus tswv sib tov ob peb hom, piv txwv li, fusing me me rau ntawm tus pas nrig ntawm softer wax rau kev ua qauv.hardened qhov chaw.
Nyob ntawm wax
Muaj ob hom siv quav ciab rau cov hniav nyiaj hniav kub: casting thiab ua qauv. Modeling wax yog ntau ruaj, nws yog ib qho nyuaj zoo li ntoo. Nws tuaj yeem drilled, npaj thiab hauv av ntawm lub tshuab, txawm tias cov ntsiab lus me me yuav ua tau ntev. Casting wax yog softer thiab ntau yas, tsis muaj lub tshuab yuav tsum tau ua hauj lwm nrog nws, koj muaj peev xwm txiav tawm cov duab nrog ib tug tsawg kawg nkaus txheej ntawm cov cuab yeej. Cov khoom me me uas ua los ntawm cov khoom siv quav ciab no yog qhov tsis yooj yim dua, feem ntau cov khoom siv hauv tsev yog siv rau waxing. Nrog casting ciab, nws raug pom zoo kom pib ua hauj lwm nrog beginners, raws li nws yog ntau yas, pliable thiab melts sai.
