Thaum tshav kub kub resistant iav: manufacturing nta thiab Scope

Khob - ib tug ntawm cov hiob thiab feem ntau ntau yam ntaub ntawv. Khob cov khoom uas tag nrho cov nyob ib ncig ntawm peb, tiam sis feem ntau peb tsis xav ntau txog nws tus yam ntxwv. Lawv yuav txawv heev nyob rau hauv lub npaj siv rau yav tom ntej siv. Ib qho ntawm feem ntau hom yog ib tug kub-ntawv pov thawj iav. Cia peb kawm saib ua li cas nws txawv ntawm lub niaj zaus, thiab qhov uas siv tau.

Thaum tshav kub kub-ntawv pov thawj iav

Khob yog ib qho inorganic substance. Nws yog yus muaj los ntawm thaj chaw ntawm ib tug khoom, molten kua, nws yog ib tug siab viscosity. Nws fragility, lub dag lub zog, ceev, thiab kev kub sib txawv lug thiab nyob ntawm seb tus impurities.

Tsis ntev los no, cov ntaub ntawv tau tsim uas muaj atypical iav zog, xws li hluav taws kuj. Lub ntsiab parameter uas yog txawv los ntawm lwm yam iav thaum tshav kub kub resistant iav - lub ntsuas kub ntawm uas nws koom tes nws lub zog. Nws muaj peev xwm mas tshav kub txawm 1000 degrees Celsius, thaum nws "lug txhawb cov miv" nrib pleb twb nyob 80 degrees.

Nyob rau refractoriness cuam tshuam rau pes tsawg leeg thiab thickness ntawm cov khoom. Yog hais tias lub khob yog thicker thiab muaj ib tug ntau dua kev faib ua feem ntawm alkali oxides, nws yuav check. Feem ntau cov resistant tshav kub-ntawv pov thawj iav - quartz. Nws muaj peev xwm mas loj kub hloov thiab muaj ib tug high kub kub (2230 degrees).

Qhuav ntawm tshav kub-resistant iav

Feem ntau, cov iav yog ib tug sib tov ntawm ob peb yam. Yuav kom tau ib tug qauv khoom silica xuab zeb, txiv qaub thiab dej qab zib. Lawv rhuab mus heev kub (1700 ° C), yog vim li cas lawv yog melted thiab tov nrog txhua lwm yam. Tom qab ntawd, lub sib tov twb poured mus rau hauv lub molten tin (lawv tsis tov vim tus ceev sib txawv), thiab ces maj mam txias.

Yuav kom muab cov kev tsim nyog cov khoom mus rau cov Cheebtsam yog ntxiv, thiab lwm yam. Mus ua ib tug kub-ntawv pov thawj iav, siv ntau oxides. Yog li, nyob rau hauv borosilicate khoom muaj boron oxide nyob rau hauv ib tug silica - silicon oxide.

Ntau zog nws yuav tau, yog tias koj siv ob peb khaubncaws sab nraud povtseg. Rau lub hom phiaj no nws yog muab rau txias kiag li. Tiav lawm los xij yog sanded, ntxuav thiab txiav mus rau yuav tsum tau loj. Ces ib tug xov tooj ntawm cov iav los xij yog sib raug zoo rau txhua tus lwm yam los ntawm txoj kev ib tug tshwj xeeb polymer. Lub finishing kov hlawv iav "nyuaj" nyob rau hauv 660-680 degrees.

daim ntawv thov

Thaum tshav kub kub resistant iav yog nrov nyob rau hauv lub chav ua noj. Vim hais tias nws yog los ncu thiab cookware. Common khoom ntawm cov khoom no kuj yog ib tug qhov cub. Quartz iav siv nyob rau hauv qhov siv thiab ua kho qhov muag fiber, ib tug Fresnel lens, crucibles, insulators, thiab hais txog. D. Borosilicate siv rau kho qhov muag tsom iav, tais diav, reflecting tsom iav raj.

Nyob rau hauv cov tais diav ntawm tshav kub-resistant iav ntau yam zoo. Nws tiv txawm tias ib tug qhib hluav taws, yog check. Cov khoom yog txaus inert thiab tsis oxidize thaum rhuab, yog li tsis hloov qhov tsw ntawm cov tais diav. Nws yog tsis raug mus rau corrosion thiab scaling.

Ntawm cov hoob kawm, txawm tias ib tug kub-ntawv pov thawj iav muaj drawbacks. Nws tsis hnov mob rau ib tug ntse nce los yog yuav txo nyob rau hauv kub. Lauj kaub tais diav los ntawm xws li cov ntaub ntawv uas yuav tsum tsis txhob muab tso rau hauv ib tug loj hluav taws tam sim ntawd tom qab lub freezer. Nyob rau hauv tas li ntawd, lub fireproof iav yog tsis shock-ntawv pov thawj thiab poob nws tsis tsim nyog nws.