Cov Khoom Siv Hluav Taws Xob Ua Hluav Taws Xob: Cov Khoom Siv Hluav Taws Xob Yog Dab Tsi? Qhov Zoo Thiab Qhov Tsis Zoo Ntawm Cov Zaub Refractory, Kev Siv

2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2024-01-15 04:12

Cov khoom siv fiber ntau refractory yog xav tau hauv kev tsim kho, kev lag luam thiab lwm qhov chaw. Refractories suav nrog cov khoom cua sov tshwj xeeb uas muaj cov fibers. Nws tsim nyog txiav txim siab kom ntxaws ntxiv tias cov khoom siv no yog qhov twg, nws tau siv li cas.

Nws yog dab tsi?

Cov khoom siv hluav taws xob yog cov khoom lag luam tshwj xeeb raws li cov khoom siv ntxhia . Qhov tshwj xeeb ntawm cov khoom siv hluav taws xob no yog lub peev xwm ua haujlwm cov khoom ntawm qhov kub siab, uas ua rau nws muaj peev xwm siv cov khoom siv hluav taws xob rau kev tsim kho ntawm ntau yam txheej txheem thiab txheej txheej tiv thaiv.

Cov ntaub ntawv raw yog feem ntau:

• complex oxides;
• tsis muaj oxygen sib txuas;
• oxynitrides;
• sialons;
• oxycarbides.

Rau kev tsim cov refractories, cov thev naus laus zis sib txawv thiab theem tau siv, ntawm qhov tseem ceeb tshaj plaws yog kev kho cua sov ntawm cov khoom. Tsis tas li, cov khoom lag luam yav tom ntej raug nthuav tawm rau:

• zuaj cov khoom sib xyaw ua ke;
• tsim kev them nqi;
• molding;
• nias

Cov theem kawg yog nqa tawm tshwj xeeb cov tshuab thiab hydraulic nias. Cov khoom siv feem ntau raug rau extrusion ua raws los ntawm kev nias ntxiv.

Tsawg tsawg zaus, cov khoom siv hluav taws xob tau tsim hauv cov cua sov hauv chav kom thiaj li tau txais qee yam khoom. Hauv cov txheej txheem tsim cov khoom lag luam, cov tuam txhab tsim khoom tuaj yeem ntxiv ntau yam ntxhia thiab lwm cov khoom ntxiv rau kev sib xyaw ntawm cov khoom siv yav tom ntej, uas tuaj yeem ua rau nws cov haujlwm ua haujlwm tau zoo.

Cov yam ntxwv tseem ceeb ntawm cov khoom siv hluav taws xob hluav taws xob yog refractoriness. Ua lwm yam lus, cov khoom muaj peev xwm tiv taus kev ua haujlwm ntawm qhov kub tsis tau poob nws qhov tsos lossis yaj.

Cov ntsuas hluav taws xob tau txiav txim siab los ntawm kev ntsuas ntawm cov qauv tshwj xeeb npaj: txiav cov pyramids siab txog 30 hli siab, nrog qhov ntev ntawm 8 thiab 2 hli. Cov qauv no hu ua Zeger cone. Thaum lub sijhawm kuaj, cov pwm tau muag muag thiab hloov pauv mus rau qhov zoo li uas lub khob hliav qab tuaj yeem kov lub hauv paus. Qhov tshwm sim yog kev txiav txim siab ntawm qhov kub uas tuaj yeem siv cov khoom siv hluav taws xob.

Cov khoom siv hluav taws xob tau tsim rau lub hom phiaj tshwj xeeb thiab rau kev siv dav . Cov khoom thiab cov yam ntxwv ntawm cov khoom tau teev tseg hauv phau ntawv hla tebchaws lossis cov ntaub ntawv tswj hwm, nrog rau cov kev xaiv rau kev ua haujlwm tau ntawm cov khoom siv hluav taws xob.

Qhov zoo thiab qhov tsis zoo

Lub ntsiab kom zoo dua ntawm cov khoom siv hluav taws xob tiv taus yog nws qhov kev tiv thaiv hluav taws ntau ntxiv. Qhov zoo ntxiv ntawm cov khoom siv hluav taws xob:

• tsawg coefficient ntawm thermal conductivity;
• tiv taus ib puag ncig txhoj puab heev.

Tsis tas li, cov khoom siv hluav taws xob muaj qhov tshwj xeeb los ntawm kev muaj zog ntxiv, uas ua rau nws muaj peev xwm siv lawv los ua txheej tiv thaiv rau ntau yam khoom siv. Qhov tsis zoo tsuas yog tus nqi siab , uas tau piav qhia los ntawm cov thev naus laus zis tshwj xeeb rau kev tsim cov khoom siv hluav taws xob. Txawm li cas los xij, qhov rho tawm tsis txwv tus tswv ntawm ntau lub tuam txhab los ntawm kev yuav khoom uas tiv taus qhov kub thiab qhib hluav taws.

Cov ntawv thov

Cov khoom siv hluav taws xob ua hluav taws xob yog xav tau hauv ntau thaj chaw, thiab kev siv cov khoom lag luam zoo li txuas ntxiv mus

Coke qhov cub . Refractory yog siv rau kev ua tiav cov pwm hauv cov coke qhov cub kom txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhaws. Kev ua kom muaj cua sov tsawg ua rau muaj kev nce nrawm ntawm qhov kub ntawm cov nplaim hluav taws thiab tshem tawm cov tso nyiaj ntawm cov khoom lag luam. Qhov tshwm sim yog txo qis kev poob cua sov thaum ua haujlwm ntawm lub cub tawg. Tsis tas li ntawd, cov ntaub ntawv uas ua los ntawm cov hluav taws kub hnyiab tau nrov npe rau lawv cov kev ua kom zoo thiab ywj pheej, uas tso cai rau lawv siv los ua qhov nruab nrab ntim nruab nrab ntawm cov cua sov.

Cov nroj tsuag sib sau ua ke . Yeej, cov khoom siv xav tau txhawm rau txhawm rau tiv thaiv sab nrauv ntawm cov qauv. Nrog nws txoj kev pab, cov txheej txheem refractory ntawm lub qhov tso pa tawm ntawm qhov xav tau kev teeb tsa tau ua tiav. Qhov zoo ntawm kev siv cov khoom siv no yog txhawm rau txo kev siv roj thiab txuag dej txias.

Hlau ntau lawm . Cov khoom siv hluav taws xob muab hluav taws kub rwb thaiv tsev rau cov khoom siv hlau. Hauv cov txheej txheem ntawm kev siv cov khoom siv hluav taws xob, nws muaj peev xwm nyob rau lub sijhawm luv kom nce qhov kub ntawm cov raj xa dej mus rau qhov ntsuas xav tau, txhawm rau tiv thaiv qhov tshwm sim ntawm tshav kub poob.

Hlau ntau lawm . Refractories tau siv los npog lub qhov cub tawg qhov twg xav tau cov pob qij txha nthuav dav. Thaum nws los txog rau kev hloov pauv steelmaking, cov khoom siv fibrous tau teeb tsa ntawm cov kais dej kub txhawm rau txhawm rau kom ntseeg tau tias yuav tsum muaj cov rwb thaiv tsev qhov tseem ceeb. Tsis tas li ntawd, fiber ntau npog ua kom ntseeg tau kev ua haujlwm tau zoo ntawm cov thermocouples thiab cov twj paj nruag uas tsim nyog rau kev txiav txim siab qhov muaj pes tsawg leeg ntawm cov hlau.

Casting hlau . Cov khoom siv fiber hauv qhov no ua lub luag haujlwm ntawm cov ntsaws ruaj ruaj. Lawv tau teeb tsa nruab nrab ntawm lub hauv paus phaj ntawm cov cuab yeej thiab cov pwm los tiv thaiv cov roj to. Tsis tas li ntawd, cov kab hluav taws xob tau ua los ntawm cov khoom siv hluav taws xob, los ntawm qhov uas nws muaj peev xwm los txhim kho cov cua sov uas ntseeg tau tau zoo ntawm sab saud ntawm lub cub tawg rau pov cov hlau kim.

Cov khoom siv hluav taws xob hluav taws xob tau siv hauv ntau qhov kev lag luam thiab kev tsim kho . Nrog lawv cov kev pab, nws muaj peev xwm txo cov nqi tsim khoom thiab txhim kho cov khoom cua sov rwb thaiv tsev ntawm cov txheej txheem feem ntau. Tsis tas li, cov khoom siv hluav taws xob tiv thaiv kev poob cua sov, muab kev tiv thaiv zoo ntawm ntau yam hauv kev ua haujlwm ntawm qhov kub siab.

Kev siv cov hlua fiber ntau tuaj yeem txuas lub neej kev pabcuam ntawm ntau yam khoom siv mus txog 4 xyoos lossis ntau dua. Refractories yog cov yam ntxwv ua tau zoo thiab tiv taus kub, uas ua rau lawv nrov heev.