Magnesia Chrome Brick

Ana amfani da tubalin Magnesia chrome a masana’antu da gini saboda kyawawan kaddarorin su kamar juriya da matsin lamba. Hakanan akwai nau’ikan tubali daban -daban na magnesia chrome. Dangane da buƙatun samfura daban -daban, galibi akwai nau’ikan tubalin magnesia chrome guda uku. irin:

1. Bulan burodi na magnesia chrome: tubalin magnesia chrome an yi shi ne da kayan ƙoshin lafiya na magnesia masu inganci da baƙin ƙarfe. Ana daidaita abun ciki na Cr2O3 gwargwadon buƙatu daban -daban. Samfurin yana da kwanciyar hankali mai ɗorewa mai ɗorewa da babban aikin zafin jiki. An yi amfani da shi sosai a cikin siminti na siminti da ƙarfe marasa ƙarfe. Makera da sauransu.

2. Haɗa kai tsaye na tubalin magnesia-chrome: Buɗaɗɗen tubalin magnesia-chrome yana amfani da ƙaramin ƙazantar chrome da ingantaccen magnesia mai ƙyalli azaman kayan albarkatu, bayan ƙwanƙwasa matsin lamba, da ƙarar zafi mai zafi a zafin jiki sama da 1 700. . Good high zazzabi yi, karfi juriya ga slag yashewa. Mai tsayayya da yaɗuwar simintin clinker. An yi amfani da shi sosai a cikin tanderun ƙarfe marasa ƙarfi da ƙarfe na ciminti.

3. Semi-recombined magnesia chrome tubalin da sake haɗawa da magnesia chrome tubalin: Semi-recombined magnesia chrome bulo da recombined magnesia chrome tubalin, ta amfani da sashi ko duk fused fused (fused synthetic sand) azaman albarkatun ƙasa, kayan ƙoshin lafiya, babban matsin lamba, Ultra -High calcination zazzabi, haɗin guntu mai kyau, ƙarfin samfur, kwanciyar hankali mai ƙarfi, ana amfani dashi sosai a cikin RH, VOD, AOD da sauran na’urorin tacewa na waje, tanderun ƙarfe marasa ƙarfe, da sauransu.

4. tubalin Magnesia na chrome sune samfuran ƙin alkaline waɗanda ke ɗauke da 55% zuwa 80% MgO da 8% zuwa 20% Cr2O3, wanda ya haɗa da periclase, spinel composite da ƙaramin adadin silicate lokaci. Hadadden spinel ya haɗa da MgAl2O4, MgFe2O4, MgCr2O4 da FeAl2O4 spinel solid mafita.

Bricks na Magnesia chrome sun haɓaka cikin sauri bayan shekarun 1960 saboda karuwar tsabtataccen kayan abu da zafin zafin wuta. A halin yanzu, ana iya raba bulo na magnesia chrome zuwa bulo na yau da kullun, tubalin haɗin kai kai tsaye, tubalin haɗin gwiwa, tubalin da aka sake haɗawa da tubalin Cast, da dai sauransu.

(1) Tubal din chrome na al’ada: Wannan samfur ne na gargajiya, ta yin amfani da baƙin ƙarfe kamar ƙananan ƙwayoyin cuta da magnesia azaman foda. Ko kayan biyu an haɗa su da ƙyalli mai ƙima, kuma yawan zafin zafin shine 1550 ~ 1600 ° C. Ƙananan tsarin wannan tubali yana nuna cewa akwai ɗan ƙaramin haɗin kai tsakanin barbashi na chromite da periclase, galibi silicate (CMS) ciminti ko warewar fissure; akwai ƙananan matakai masu lalacewa a cikin periclase, kuma akwai ƙarancin hulɗa kai tsaye a cikin matrix. A haɗe, wannan tubalin yana da kaddarorin inji mara kyau da rashin juriya na lalata slag.

(2) Gina tubalin magnesia-chrome kai tsaye: Ana haɓaka tubalin magnesia-chrome kai tsaye akan tubalin magnesia-chrome. Akwai manyan halaye guda biyu na samarwa. Isaya shine amfani da albarkatun ƙasa mafi tsabta, ɗayan kuma shine amfani da harbe -harbe mafi girma. zazzabi. Abin da ake kira haɗin kai kai tsaye yana nufin cewa akwai ƙarin hulɗa kai tsaye tsakanin barbashin baƙin ƙarfe na chrome a cikin bulo da periclase, saboda albarkatun ƙasa ya ƙunshi ƙasa da SiO2 (wanda ake sarrafawa a ƙasa 1% zuwa 25%), kuma adadin silicate da aka samar yana da ƙarami . Hanyar harbawa tana matse silicate a cikin sasanninta. Ta haka yana haɓaka haɗin kai tsaye na ingantaccen lokaci.

Haɗaɗɗen tubalin magnesia-chrome yana da babban haɗin haɗin kai tsaye, don haka tubalin yana da ƙarfin zafin zafin da ya fi girma, juriya na slag, juriya na lalata, juriya na lalata, juriya na lalata, kyakkyawan kwanciyar hankali mai ɗorewa da kwanciyar hankali a 1800 ° C.

(3) Haɗin tubalin magnesia-chrome: Tsarin samarwa na wannan samfur yana da alaƙa da ƙarar wutar makera mai cakuda magnesia da chromium ore fin foda a cikin wani rabo don cimma ƙarni na spinel na biyu da magnesia-chrome ore M-lokaci mai ƙarfi don manufar haɗin kai kai tsaye don shirya kayan sintered na gama gari, wanda ake amfani da shi don samar da samfuran wuta ko samfuran da ke haɗe da sinadarai.

Haɗin kai tsaye da daidaiton microstructure na co-sintered magnesia-chrome tubes sun fi na tubalin da aka haɗa kai tsaye. Adadin periclase desolubilization lokaci da intergranular sakandare spinel ne mafi. Bricks na co-sintered-magnesia-chrome suna da jerin ƙarin kai tsaye Haɗe tare da mafi kyawun aikin tubalin, ya shahara musamman saboda ƙarfin zafin zafinsa, saurin juriya da saurin juriya. Hakanan ana iya raba tubalin gama gari na sinadarai iri biyu, ɗaya shine cikakken tubalin gama gari na yau da kullun, duk jerin abubuwan da aka saba da su na barbashi da foda mai kyau, ko an ƙone shi ko an haɗa shi da sinadarai, ƙananan microstructure ɗin sa daidai yake; na biyun ya zama ruwan dare gama gari Don tubalin da aka murƙushe, akwai ɓangaren abubuwan da aka haɗa, kamar kayan sinking na gama -gari don barbashi mara nauyi, kuma ana iya haɗa madaidaicin ɓangaren foda a cikin bulo a cikin wani gwargwado tare da ƙoshin chrome mai kyau da murfin takarda foda. , don samfuran da aka haɗa da sinadarai za su zama microscopic Tsarin ya bambanta.

(4) Recombination na magnesia-chromium tubalin: magnesia-chromium gauraye foda yana narke ta hanyar hanyar narkar da wutar lantarki, kuma narkarwar ta zama crystallized don samar da madaidaiciyar madaidaiciyar madaidaiciya, tare da magnesia-chromium spinel da periclase gauraye lu’ulu’u azaman babban abun ciki An murƙushe kayan magnesia-chromium a cikin wani takamaiman ƙwayar cuta, gauraye da ƙerawa, sannan a kunna don shirya tubalin da aka sake haɗawa, ko amfani da shi kai tsaye kamar tubalin sumunti.

Tsarin microstructure na tubalin da aka haɗe yana halin babban matakin haɗin kai kai tsaye da kuma babban adadin ɓarna na ɓarna: ƙaƙƙarfan crystal wanda ke ɗauke da adadi mai yawa na ɓarna da gaske yana canza kaddarorin jiki da na sunadarai na periclase, kamar rage faɗaɗawar zafi. coefficient. , Inganta juriya na girgiza zafi, inganta juriya ga yashewar acid-alkaline slag. Haɗin tubalin yana da kaddarori iri ɗaya da na tubalin da aka haɗa, amma suna da juriya mafi kyau ga canje-canjen zazzabi mai sauri da ƙaramin tsari fiye da tubalin da aka haɗa.

Haɗe da tubalin magnesia chrome, matrix ne mai ƙoshin lafiya tare da rabe-raben rami da microcracks, kuma hankalinsa ga sauye-sauyen yanayin zafi ya fi na narkewa da simintin gyare-gyare. Babban aikin zazzabi na samfurin yana tsakanin tubalin da aka haɗa da bulo mai haɗin kai.

(5) Fused da jefa tubalin chrome na magnesia: Sanya cakuda magnesia da chrome a cikin tanderun wutar lantarki don narkewa gaba ɗaya, sannan a zuba narkarwar a cikin sifa mai ƙyalli don yin simintin. A lokacin tsarin karfafawa, ana samun ingantattun matakan periclase da spinel crystal, kuma an kafa tsarin kristal mai kyau a lokaci guda, don haka tubalin magnesia chrome yana da kyakkyawan ƙarfin zafin zafin jiki da juriya na lalata lalata.

Ana amfani da tubalin Magnesium chrome musamman a masana’antun ƙarfe, kamar gina murhun murhun murhu mai buɗewa, saman murhun wutar lantarki, murhun murhu mai ƙonewa daga wuta da ire-iren murhun ƙarfe daban-daban. Babban ɓangaren zafin jiki na bangon babban wutar wutar lantarki an yi shi ne da tubalin magnesia-chrome, babban yashewar murhun tukunyar da ke bayan tanderun an yi shi da kayan roba, kuma babban -fashewar tudun tudun wuta mai ƙamshi mai ƙamshi da ƙarfe-ƙarfe magnesia-chrome da kayan roba. An yi shi da tubalin magnesia chrome. Bugu da kari, ana kuma amfani da tubalin magnesia-chrome a yankin konewa na siminti rotary kilns da masu gyara gilashin gilashi.

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Magnesia Chrome Brick

Ana amfani da tubalin Magnesia chrome a masana’antu da gini saboda kyawawan kaddarorin su kamar juriya da matsin lamba. Hakanan akwai nau’ikan tubali daban -daban na magnesia chrome. Dangane da buƙatun samfura daban -daban, galibi akwai nau’ikan tubalin magnesia chrome guda uku. irin:

1. Bulan burodi na magnesia chrome: tubalin magnesia chrome an yi shi ne da kayan ƙoshin lafiya na magnesia masu inganci da baƙin ƙarfe. Ana daidaita abun ciki na Cr2O3 gwargwadon buƙatu daban -daban. Samfurin yana da kwanciyar hankali mai ɗorewa mai ɗorewa da babban aikin zafin jiki. An yi amfani da shi sosai a cikin siminti na siminti da ƙarfe marasa ƙarfe. Makera da sauransu.

2. Haɗa kai tsaye na tubalin magnesia-chrome: Buɗaɗɗen tubalin magnesia-chrome yana amfani da ƙaramin ƙazantar chrome da ingantaccen magnesia mai ƙyalli azaman kayan albarkatu, bayan ƙwanƙwasa matsin lamba, da ƙarar zafi mai zafi a zafin jiki sama da 1 700. . Good high zazzabi yi, karfi juriya ga slag yashewa. Mai tsayayya da yaɗuwar simintin clinker. An yi amfani da shi sosai a cikin tanderun ƙarfe marasa ƙarfi da ƙarfe na ciminti.

3. Semi-recombined magnesia chrome tubalin da sake haɗawa da magnesia chrome tubalin: Semi-recombined magnesia chrome bulo da recombined magnesia chrome tubalin, ta amfani da sashi ko duk fused fused (fused synthetic sand) azaman albarkatun ƙasa, kayan ƙoshin lafiya, babban matsin lamba, Ultra -High calcination zazzabi, haɗin guntu mai kyau, ƙarfin samfur, kwanciyar hankali mai ƙarfi, ana amfani dashi sosai a cikin RH, VOD, AOD da sauran na’urorin tacewa na waje, tanderun ƙarfe marasa ƙarfe, da sauransu.

4. tubalin Magnesia na chrome sune samfuran ƙin alkaline waɗanda ke ɗauke da 55% zuwa 80% MgO da 8% zuwa 20% Cr2O3, wanda ya haɗa da periclase, spinel composite da ƙaramin adadin silicate lokaci. Hadadden spinel ya haɗa da MgAl2O4, MgFe2O4, MgCr2O4 da FeAl2O4 spinel solid mafita.

Bricks na Magnesia chrome sun haɓaka cikin sauri bayan shekarun 1960 saboda karuwar tsabtataccen kayan abu da zafin zafin wuta. A halin yanzu, ana iya raba bulo na magnesia chrome zuwa bulo na yau da kullun, tubalin haɗin kai kai tsaye, tubalin haɗin gwiwa, tubalin da aka sake haɗawa da tubalin Cast, da dai sauransu.

(1) Tubal din chrome na al’ada: Wannan samfur ne na gargajiya, ta yin amfani da baƙin ƙarfe kamar ƙananan ƙwayoyin cuta da magnesia azaman foda. Ko kayan biyu an haɗa su da ƙyalli mai ƙima, kuma yawan zafin zafin shine 1550 ~ 1600 ° C. Ƙananan tsarin wannan tubali yana nuna cewa akwai ɗan ƙaramin haɗin kai tsakanin barbashi na chromite da periclase, galibi silicate (CMS) ciminti ko warewar fissure; akwai ƙananan matakai masu lalacewa a cikin periclase, kuma akwai ƙarancin hulɗa kai tsaye a cikin matrix. A haɗe, wannan tubalin yana da kaddarorin inji mara kyau da rashin juriya na lalata slag.

(2) Gina tubalin magnesia-chrome kai tsaye: Ana haɓaka tubalin magnesia-chrome kai tsaye akan tubalin magnesia-chrome. Akwai manyan halaye guda biyu na samarwa. Isaya shine amfani da albarkatun ƙasa mafi tsabta, ɗayan kuma shine amfani da harbe -harbe mafi girma. zazzabi. Abin da ake kira haɗin kai kai tsaye yana nufin cewa akwai ƙarin hulɗa kai tsaye tsakanin barbashin baƙin ƙarfe na chrome a cikin bulo da periclase, saboda albarkatun ƙasa ya ƙunshi ƙasa da SiO2 (wanda ake sarrafawa a ƙasa 1% zuwa 25%), kuma adadin silicate da aka samar yana da ƙarami . Hanyar harbawa tana matse silicate a cikin sasanninta. Ta haka yana haɓaka haɗin kai tsaye na ingantaccen lokaci.

Haɗaɗɗen tubalin magnesia-chrome yana da babban haɗin haɗin kai tsaye, don haka tubalin yana da ƙarfin zafin zafin da ya fi girma, juriya na slag, juriya na lalata, juriya na lalata, juriya na lalata, kyakkyawan kwanciyar hankali mai ɗorewa da kwanciyar hankali a 1800 ° C.

(3) Haɗin tubalin magnesia-chrome: Tsarin samarwa na wannan samfur yana da alaƙa da ƙarar wutar makera mai cakuda magnesia da chromium ore fin foda a cikin wani rabo don cimma ƙarni na spinel na biyu da magnesia-chrome ore M-lokaci mai ƙarfi don manufar haɗin kai kai tsaye don shirya kayan sintered na gama gari, wanda ake amfani da shi don samar da samfuran wuta ko samfuran da ke haɗe da sinadarai.

Haɗin kai tsaye da daidaiton microstructure na co-sintered magnesia-chrome tubes sun fi na tubalin da aka haɗa kai tsaye. Adadin periclase desolubilization lokaci da intergranular sakandare spinel ne mafi. Bricks na co-sintered-magnesia-chrome suna da jerin ƙarin kai tsaye Haɗe tare da mafi kyawun aikin tubalin, ya shahara musamman saboda ƙarfin zafin zafinsa, saurin juriya da saurin juriya. Hakanan ana iya raba tubalin gama gari na sinadarai iri biyu, ɗaya shine cikakken tubalin gama gari na yau da kullun, duk jerin abubuwan da aka saba da su na barbashi da foda mai kyau, ko an ƙone shi ko an haɗa shi da sinadarai, ƙananan microstructure ɗin sa daidai yake; na biyun ya zama ruwan dare gama gari Don tubalin da aka murƙushe, akwai ɓangaren abubuwan da aka haɗa, kamar kayan sinking na gama -gari don barbashi mara nauyi, kuma ana iya haɗa madaidaicin ɓangaren foda a cikin bulo a cikin wani gwargwado tare da ƙoshin chrome mai kyau da murfin takarda foda. , don samfuran da aka haɗa da sinadarai za su zama microscopic Tsarin ya bambanta.

(4) Recombination na magnesia-chromium tubalin: magnesia-chromium gauraye foda yana narke ta hanyar hanyar narkar da wutar lantarki, kuma narkarwar ta zama crystallized don samar da madaidaiciyar madaidaiciyar madaidaiciya, tare da magnesia-chromium spinel da periclase gauraye lu’ulu’u azaman babban abun ciki An murƙushe kayan magnesia-chromium a cikin wani takamaiman ƙwayar cuta, gauraye da ƙerawa, sannan a kunna don shirya tubalin da aka sake haɗawa, ko amfani da shi kai tsaye kamar tubalin sumunti.

Tsarin microstructure na tubalin da aka haɗe yana halin babban matakin haɗin kai kai tsaye da kuma babban adadin ɓarna na ɓarna: ƙaƙƙarfan crystal wanda ke ɗauke da adadi mai yawa na ɓarna da gaske yana canza kaddarorin jiki da na sunadarai na periclase, kamar rage faɗaɗawar zafi. coefficient. , Inganta juriya na girgiza zafi, inganta juriya ga yashewar acid-alkaline slag. Haɗin tubalin yana da kaddarori iri ɗaya da na tubalin da aka haɗa, amma suna da juriya mafi kyau ga canje-canjen zazzabi mai sauri da ƙaramin tsari fiye da tubalin da aka haɗa.

Haɗe da tubalin magnesia chrome, matrix ne mai ƙoshin lafiya tare da rabe-raben rami da microcracks, kuma hankalinsa ga sauye-sauyen yanayin zafi ya fi na narkewa da simintin gyare-gyare. Babban aikin zazzabi na samfurin yana tsakanin tubalin da aka haɗa da bulo mai haɗin kai.

(5) Fused da jefa tubalin chrome na magnesia: Sanya cakuda magnesia da chrome a cikin tanderun wutar lantarki don narkewa gaba ɗaya, sannan a zuba narkarwar a cikin sifa mai ƙyalli don yin simintin. A lokacin tsarin karfafawa, ana samun ingantattun matakan periclase da spinel crystal, kuma an kafa tsarin kristal mai kyau a lokaci guda, don haka tubalin magnesia chrome yana da kyakkyawan ƙarfin zafin zafin jiki da juriya na lalata lalata.

Ana amfani da tubalin Magnesium chrome musamman a masana’antun ƙarfe, kamar gina murhun murhun murhu mai buɗewa, saman murhun wutar lantarki, murhun murhu mai ƙonewa daga wuta da ire-iren murhun ƙarfe daban-daban. Babban ɓangaren zafin jiki na bangon babban wutar wutar lantarki an yi shi ne da tubalin magnesia-chrome, babban yashewar murhun tukunyar da ke bayan tanderun an yi shi da kayan roba, kuma babban -fashewar tudun tudun wuta mai ƙamshi mai ƙamshi da ƙarfe-ƙarfe magnesia-chrome da kayan roba. An yi shi da tubalin magnesia chrome. Bugu da kari, ana kuma amfani da tubalin magnesia-chrome a yankin konewa na siminti rotary kilns da masu gyara gilashin gilashi.

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