Maaddada dib-u-celinta
fikradda:
Qayb ka mid ah walxaha aan biraha ahayn ee aan organic ahayn ee leh refractory aan ka yarayn 1580°C.Dib-u-celinta waxaa loola jeedaa heerkulka Celsius kaas oo muunada koontada refractory ay ka hortagto ficilka heerkulka sare iyada oo aan la jilicsanayn oo dhalaalayn xaalad aan culeys lahayn.Si kastaba ha ahaatee, kaliya qeexida refractoriness si buuxda uma sifayn karo walxaha refractory, iyo 1580°C ma aha mid dhammaystiran.Hadda waxa lagu qeexaa sida dhammaan agabka jidhkooda iyo kiimikaad ee ay u ogolaadaan in loo isticmaalo jawi heer kul ah oo loo yaqaanno refractory.Qalabka dib-u-celinta ayaa si weyn loogu isticmaalaa birta, warshadaha kiimikada, batroolka, wax soo saarka mishiinka, silicate, tamarta iyo goobaha kale ee warshadaha.Waxay yihiin kuwa ugu waaweyn warshadaha birta, xisaabinta 50% ilaa 60% wadarta wax soo saarka.
saamayn:
Qalabka dib-u-celinta waxaa loo isticmaalaa qaybaha kala duwan ee dhaqaalaha qaranka sida birta, biraha aan birta ahayn, dhalooyinka, sibidhka, ceramics, petrochemicals, mishiinada, kululeeyaha, warshadaha iftiinka, tamarta korontada, warshadaha ciidamada, iwm, waana agab aasaasi u ah Hubi hawlgalka wax soo saarka iyo horumarinta tignoolajiyada ee warshadaha kor ku xusan.Waxay door muhiim ah oo aan la bedeli karin ka ciyaartaa horumarinta wax soo saarka warshadaha heerkulka sare.
Tan iyo 2001, oo ay hogaaminayaan horumarinta degdega ah ee warshadaha heerkulka sare sida birta iyo birta, birta aan birta ahayn, kiimikooyinka petrochemicals, iyo qalabka dhismaha, warshadaha refractory waxay ilaaliyeen korriin wanaagsan waxayna noqdeen wax soo saar weyn iyo dhoofiye alaabada refractory ee aduunka.Sannadkii 2011, wax-soo-saarka Shiinaha ee refractory wuxuu ahaa qiyaastii 65% wadarta guud ee adduunka, wax-soo-saarkeeda iyo mugga iibka ayaa si joogto ah ugu jira kaalinta koowaad ee adduunka.
Horumarinta warshadaha dib-u-celinta waxay si dhow ula xiriirtaa sii-haynta kheyraadka macdanta gudaha.Bauxite, magnesite iyo graphite waa saddexda shay ee waaweyn ee dib u soo celinta.Shiinuhu waa mid ka mid ah saddexda waddan ee adduunka ugu dhoofiya bauxite, kaydka ugu weyn adduunka ee magnesite, iyo dhoofiye weyn oo garaafka.Khayraadka hodanka ah ayaa taageeray agabka Shiinaha ee dib u celinta tobanka sano ee horumarka degdega ah.
Muddada "Qorshaha Shanta Sano ee Laba iyo Tobnaad", Shiinuhu wuxuu dardargelinayaa baabi'inta awoodda wax-soo-saarka ee duugowday iyo tamarta sare.Warshadaha ayaa diiradda saari doona horumarinta iyo kor u qaadida foornooyinka tamarta-badbaadinta cusub, horumarinta tignoolajiyada tamarta-badbaadinta dhamaystiran, maamulka tamarta, xakamaynta qiiqa "saddexda qashinka" iyo ka faa'iidaysiga khayraadka ee "saddexda qashinka" dib u warshadaynta, iwm. Dib-u-warshadaynta kheyraadka iyo dib-u-isticmaalka agabka dib-u-celinta ka dib isticmaalka, yaraynta qashinka adag ee sii daaya, wanaajisa ka faa'iidaysiga guud ee agabka, iyo si dhamaystiran kor loogu qaado ilaalinta tamarta iyo dhimista qiiqa.
"Siyaasadda Horumarinta Wershadaha Dib-u-Celinta" waxay tilmaamaysaa in halbeegga isticmaalka walxaha refractory ee warshadaha birta ee Shiinaha ay ku dhowdahay 25 kiiloogaraam tan oo birta ah, waxayna hoos uga dhici doontaa 15 kiiloogaraam sanadka 2020. 2020, wax soo saarka Shiinaha ayaa noqon doona mid cimri dheer , tamar badan oo hufan, wasakhaysan, oo shaqaynaysa.Alaabtu waxay dabooli doontaa baahida horumarinta dhaqaalaha qaranka sida biraha, qalabka dhismaha, kiimikooyinka, iyo warshadaha soo koraya, waxayna kordhin doonaan nuxurka farsamada ee alaabta dhoofinta.
Qalabka dib-u-celinta waxay leeyihiin noocyo badan oo kala duwan iyo isticmaalyo kala duwan.Waxaa lagama maarmaan ah in si cilmiyeysan loo kala saaro walxaha dib-u-celinta si loo fududeeyo cilmi-baarista sayniska, xulashada macquulka ah iyo maamulka.Waxaa jira habab badan oo lagu kala sooci karo agabka dib-u-celinta, oo ay ku jiraan kala soocidda sifada kiimikada, kala soocidda ka koobanta macdanta kiimikada, kala soocidda habka wax-soo-saarka, iyo kala-soocidda qaab-dhismeedka walxaha.
Kala soocida:
1.Marka loo eego heerka refractoriness:
Walxaha refractory caadiga ah: 1580 ℃ ~ 1770 ℃, horumarsan wax refractory: 1770 ℃ ~ 2000 ℃, wax refractory fasalka gaar ah:>2000 ℃
2. Agabka dib u soo celinta waxa loo qaybin karaa:
Badeecooyin la shiday, alaab aan shidnayn, refractories aan qaabaysanayn
3. Lagu kala soocay waxyaabaha kiimikada ah:
Dib-u-soo-celinta acid-ka-soo-baxa, soo-celinta dhexdhexaadka ah, dib-u-celinta alkaline
4. Kala soocida iyadoo loo eegayo ka kooban macdanta kiimikada
Habkan kala soocida ayaa si toos ah u tilmaami kara halabuurka aasaasiga ah iyo sifooyinka walxaha kala duwan ee dib-u-celinta.Waa hab kala soocidda guud ee wax-soo-saarka, isticmaalka, iyo cilmi-baarista sayniska, waxayna leedahay muhiimad la taaban karo oo xooggan.
Silica (silica), aluminium silicate, corundum, magnesia, magnesia calcium, aluminium magnesia, magnesia silicon, refractories ka kooban carbon, zirconium refractories, refractories gaar ah
6. Kala-soocidda walxaha dib-u-soo-celinta aan qaabaysan (oo loo kala saaro habka loo isticmaalo)
Castables, dahaarka buufinta, alaabta raagaya, balaastikada, alaabta xajinta, alaabta saadaasha, alaabta smear, alaabta gariirada engegan, kabka iskii isu socda, slurries refractory.
Dib-u-celinta dhexdhexaadka ah waxay inta badan ka kooban yihiin alumina, chromium oxide ama kaarboon.Alaabada corundum oo ka kooban in ka badan 95% alumina waa walxo dib u celin oo tayo sare leh oo adeegsigeedu kala duwan yahay.
Chiping Wanyu Industry and Trade Co., Ltd., oo la aasaasay 2010, waxay ku takhasustay soo saarista alaabada xidhashada u adkaysata iyo kuwa dib u celinaya: qaybta corundum cad, budada ganaaxa, iyo alaabta taxanaha ciidda granular.
Tilmaamaha taxanaha u adkaysta: 8-5#, 5-3#, 3-1#, 3-6#, 1-0#, 100-0#, 200-0#, 325-0#
Tilmaamaha ciidda granular: 20#, 24#, 36#, 40#, 46#, 54#, 60#, 80#, 100#, 150#, 180#, 200#, 220#, 240#,
Waqtiga boostada: Dec-30-2021