Ntau tus neeg nyiam hnav cov hniav nyiaj hniav kub zoo nkauj xws li bracelets, necklaces, rings, tsej, thiab lwm yam. Cov hlau tseem ceeb siv hauv cov hniav nyiaj hniav kub yog kub thiab platinum.
Thawj kauj ruam hauv kev ua cov hniav nyiaj hniav kub zoo nkauj yog kom yaj cov hlau muaj txiaj ntsig los ntawm ib qhomelting rauv.Muaj ntau hom melting furnaces nyob rau hauv kev ua lag luam.Peb yuav ntsib qee qhov teeb meem thaum xaiv lub qhov cub tawg.Peb tsis ua't paub qhov twg melting rauv yog tsim nyog rau peb cov khoom hlau melting xav tau.
Hauv kev lag luam hniav nyiaj hniav kub, nws yog ib qho uas siv induction furnaces rau smelt hlau.Yog li yog tias koj xav xaiv ibsmelting cub, koj yuav tsum tau xyuam xim rau cov ntsiab lus hauv qab no:
Qhov tseeb, induction melting furnaces feem ntau yog siv nyob rau hauv nruab nrab zaus thiab high zaus hluav taws xob rauv.Qhov siab tshaj plaws kub ntawm qhov nruab nrab zaus melting rauv yog 2600°C. Qhov siab tshaj plaws kub ntawm lub qhov cub kub yog 1600°C. Yog li yog tias koj tab tom nrhiav yuav lub qhov cub induction, nws nyob ntawm cov hlau koj xav yaj.
Lub melting point ntawm kub yog 1064°C, lub melting point ntawm platinum yog 1768°C, thiab melting point ntawm nyiaj yog 961°C. Yog li yog tias koj yaj kub thiab nyiaj, koj yuav tsum siv lub tshuab hluav taws xob ntau zaus melting, tsis yog qhov nruab nrab zaus qhov cub.Yog hais tias lub melting kub siab dhau lawm, nws yuav ua rau muaj kev hloov ntawm cov hlau zoo.Molten hlau tuaj yeem ua paug.
Los ntawm txoj kev, thaum xaiv lub cub tawg, peb kuj yuav tsum tau them sai sai rau hom crucible.Muaj ob hom crucibles: graphite crucible thiab quartz crucible.Nyob ntawm qhov kub thiab txias, graphite crucibles yog siv nyob rau hauv high zaus furnaces.Thiab quartz crucible rau nruab nrab zaus qhov cub.Quartz tiv taus kub ntau dua li graphite.Nws yuav tsum raug sau tseg tias nyiaj tsuas yog siv tau rau hauv graphite crucibles, tsis yog hauv quartz crucibles.Vim hais tias cov nyiaj reacts nrog quartz thiab tiv thaiv cov nyiaj los ntawm melting kiag li, nws yuav lo rau lub crucible thiab ua rau poob siab.
Post lub sij hawm: Feb-08-2023