Maaddada dib-u-celinta
fikradda:
Qayb ka mid ah walxaha aan biraha ahayn ee aan noolaha 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 alaabta refractory, iyo 1580°C ma aha mid dhamaystiran.Hadda waxa lagu qeexaa sida dhammaan agabka jidhkooda iyo kiimikaad ee ay u ogolaadaan in loo isticmaalo jawi heer kul ah oo loo yaqaan walxaha refractory.Qalabka refractory waxaa si weyn loogu isticmaalaa biraha, warshadaha kiimikada, batroolka, wax soo saarka mishiinka, silicate, korontada iyo beeraha 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 milatariga, iwm. 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 horumarka 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 oo dhoofiya alaabta refractory ee aduunka.Sannadkii 2011-kii, wax-soo-saarka Shiinaha ee refractory wuxuu ahaa qiyaastii 65% wadarta guud ee adduunka, iyo wax-soo-saarkeeda iyo mugga iibka ayaa si joogto ah u galay 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.Warshaduhu waxay diiradda saari doonaan horumarinta iyo kor u qaadida foornooyinka tamarta-badbaadinta cusub, horumarinta tignoolajiyada tamarta-badbaadinta dhamaystiran, maaraynta tamarta, xakamaynta qiiqa "saddexda qashinka" iyo ka faa'iidaysiga khayraadka "saddexda qashinka" Dib-u-warshadaynta, iwm. Dib-u-warshadaynta kheyraadka iyo dib-u-isticmaalka agabka refractory ka dib isticmaalka, yaraynta qashinka adag ee sii daaya, wanaajisa ka faa'iidaysiga guud ee agabka, iyo in si buuxda kor loogu qaado ilaalinta tamarta iyo dhimista qiiqa.
"Siyaasadda Horumarinta Wershadaha Dib-u-celinta" waxay tilmaamaysaa in halbeegga isticmaalka alaabta dib-u-celinta 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 ayaa leh 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.Waxa jira habab badan oo lagu kala saaro agabka refractory, oo ay ku jiraan kala soocida sifada kiimikaad, kala soocida halabuurka macdanta kiimikaad, kala soocida habka wax soo saarka, iyo kala soocida morphology shay.
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:
Alaabooyinka la shido, alaab aan la shidin, refractories aan qaabaysan
3. Lagu kala soocay waxyaabaha kiimikada ah:
Acid dib-u-kicin, dhexdhexaadin dhexdhexaad ah, dib-u-celin alkaline ah
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 agabyada 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-celinta ee aan qaabaysan (oo loo kala saaray 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 leh adeegsi badan.
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 alaabooyinka taxanaha ciidda granular.
Tilmaamaha taxanaha xidho 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