Steel Fiber na Refractory Castables: Melt ɖeɖe, Dzesidewo kple Dzoxɔxɔ ƒe Ʋuʋu

Nu

June 15, 2016

Ka si me dzoxɔxɔ mele o kple xɔtuɖaŋu ka nye nu vovovowo, tso gɔmeɖoanyi dzi va ɖo eƒe nɔnɔme dzi. Hooked structural fiber zazã le castable me nye vodada si bɔ wu eye wòxɔ asi wu le hatsotso sia me.

Refractory Fiber Kple Structural Fiber Nye Nu Vovovowo

Xɔtuɖaŋu ka si wotsɔ kɔs wɔe la tsɔtsɔ ƒu gbe ɖe xɔtunu si me dzoxɔxɔ mele o me nye vodada si bɔ wu eye wòxɔ asi wu le hatsotso sia me. Xɔtuɖaŋu ƒe ka si le etame la ƒe dzoxɔxɔ anɔ abe C 300 va ɖo 400 ene; le ema dzi la, ŋusẽ dzea anyi eye nusiwo wotsɔ blaa nu la doa kpo nu. Refractory castables zɔna le 800 va ɖo 1400 C eye nusi wotsɔ blae hã xɔa dzoxɔxɔ kple fafa kabakaba. Ka si me dzoxɔxɔ mele o to vovo le nusiwo wotsɔ wɔe me, le woƒe wɔwɔme kple woƒe nɔnɔme me: gɔmeɖoanyia nye gakpo si mexɔ dzo o, nusi wowɔnae nyea nusi me wodea tsii, eye nɔnɔmea nyea akpa etɔ̃ ƒe ƒuƒoƒo si mesɔ o. Taɖodzinua menye tensile strength o ke boŋ be woatsi tre ɖe oxidation kple ke le dzoxɔxɔ me esime wòle kadodo me kple castable.

Melt Extraction: Nusita 3D Nɔnɔme Siwo Mesɔ O Ðe Seke Nyuie Wu

Melt extraction tsɔa gakpo si mexɔ dzo o si wofa la ƒua gbe kple ya si zɔna kabakaba alo tasiaɖamfɔ si le tsatsam eye wònana wòfana zua ka ne ele dzodzom. Nutata aɖeke mele eme o, eyata nɔnɔmea mewɔ ɖeka o: eƒo xlãe, ɣeaɖewoɣi la, eƒe alɔwo le abe alɔwo ene, eye eƒe titrime le vovovo. Masɔmasɔ mae naa akpa etɔ̃ ƒe kadodo vavãtɔ nɔa castable la me tsɔ wu ka dzɔdzɔe ƒe ʋuʋu dzadzɛ. Le dodokpɔ siwo wotsɔ sɔ kple wo nɔewo me la, ka si woɖe tso melt me ​​doa modulus of rupture ɖe dzi wòde dzesii wu ka dzɔdzɔe le agbɔsɔsɔ si sɔ me, eye nusi gbɔ wòtsoe nye anchorage geometry. Kaka nye viɖe evelia: ka si woɖe tso lãgbalẽ me la mana le tsakatsaka ƒuƒu alo tsi me eye wòblana ɖe nusi wotsɔ ƒua gbe ŋu evɔ megblẽa teƒe aɖeke ɖi o, eye do aɖe si le nusi wotsɔ blae me ye nye afisi spalling dzea egɔme tsoe.

304, 310S kple 446: Dzoxɔxɔe tsoa nya me le Dzesidea ŋu

Dzeside etɔ̃ ƒo nu tso dzoxɔxɔ ƒe hatsotso etɔ̃ ŋu eye esiae nye nyametsotso gbãtɔ. 304 nye dzeside si wozãna na subɔsubɔdɔ si yia edzi va ɖo 650 C; 310S, si wodzrana hã be 2520, xɔa dzoxɔxɔ si le domedome kple esi kɔkɔ va ɖoa 1200 C; 446 nye dzoxɔxɔ gã si te ŋu nɔa te ɖe oxidation nu ƒe grade va ɖo 1400 C. Tia esi le bɔbɔe akpa eye ka la oxidise, bu akpa eye lining la do kpo nu kaba; tiae wòsɔ gbɔ akpa eye ga si nèzãna la gblẽna. Biabia la menye dzodoƒea ƒe dzoxɔxɔ si sɔ gbɔ wu o ke boŋ dzoxɔxɔ si nɔa ƒuƒoƒo si me ka la bɔbɔ nɔna ŋu ɣeyiɣi didi.

Dzoxɔxɔ ƒe Ʋuʋu: Tsi Blaeve Tsi tso 1000 C

Womefiãa nusiwo me dzoxɔxɔ mele o ƒe alafa memama 80 o, ke boŋ woʋuʋua wo to dzoxɔxɔ kple fafa kabakaba me. Asixɔxɔ si le gakpo ƒe ka ŋu le dzoxɔxɔ ƒe ʋuʋu me le gbagbãƒewo ƒe tsitsi lém: ne matriki la gbã vɔ la, ka la xea mɔ na gbagbãƒea, léa eƒe kekeme ɖe te sue eye wòxea mɔ na ʋuʋudedi. Dzidzenua nye tsatsam, si wotsina tso 1000 C me yia tsi me, zi blaeve evɔ womegbãna alo ƒua du o. Dodokpɔ ma gblɔ nya geɖe tso subɔsubɔ ƒe agbenɔƒe ŋu wu modulus of rupture, elabena nutsitsi fa kabakaba wu dzoxɔxɔ.

Agbɔsɔsɔme Dzɔna Ðe Lining System Dzi, Menye Generic kg/m3 o

Xɔtuɖaŋu ƒe kɔkrit ƒe dɔwɔwɔ ƒe didime nye kilogram 30 va ɖo 80/m3; refractory castables mewɔa esia o. Agbɔsɔsɔme nɔ te ɖe ƒuƒoƒo ƒe vovototodedeameme, tsi ƒe hiahiã, alesi woatsɔe aɖoe (casting, ramming, gunning) kple lining ƒe titrime dzi, eye zi geɖe la, edzena le 0.5% kple 2% dome le eƒe lolome nu. Tsi si sɔ gbɔ akpa eye dɔwɔwɔ ƒe ŋutete mu, ʋua me dɔwɔlawo tsɔa tsi kpena ɖe eŋu, eye tsi si wotsɔ kpe ɖe eŋu gblẽa tsi si mexɔa dzo o me. Emae nye agbledeƒe ƒe kpododonu si bɔ wu le atike sia me. Mɔnu nyuitɔe nye be atike si me dzoxɔxɔ mele o ƒe dɔwɔƒe naɖe asi le tsakatsaka ƒe nɔnɔmetata ŋu eye ka wɔla natsɔe atsi tre ɖe eŋu, eye wo ame evea siaa nawɔ dɔ tso mɔ̃ɖaŋununya ƒe nubabla ɖeka dzi.

Explosive Spalling: Nusita Fiber Ðea Edzi

Ne wodo dzo zi gbãtɔ la, tsi si le castable la me trɔna zua dzoxɔxɔ, eye ne mate ŋu asi o la, nyaƒoɖeamenua ma nusi wotsɔ blae la me. Gakpe ƒe ka kpena ɖe ame ŋu to mɔ siwo do ƒome kple wo nɔewo nana na yaƒoƒo kple to mɔxenu si xea mɔ na gbagbãƒewo ale be woʋuna vivivi, si trɔa nusi wogbã wòzua gbagbãƒe. Le xɔtunu siwo le ɣie kple xɔtunu siwo me siminti mele o siwo xɔ dzo gome la, esia le vevie wu ŋusẽ si woakpɔ tso eme. Nusiwo wotsɔ tsaka dometɔ aɖewo hã dea ka si me agbe mele o si ƒe dzoxɔxɔ gogo 165 C, si fiãna kaba eye wògblẽa yaƒoƒomɔ̃wo ɖi, si kpena ɖe gakpo ka la ŋu. Esia tae ka ƒomevi eve dzena zi geɖe le nuɖaɖa ɖeka si me dzoxɔxɔ mele o me ɖo.

Fesre Kpuie si ƒe didime nye 0.5 va ɖo 2 le alafa me le Castables

Steel fiber yia refractory castable me be wòatsi dzoxɔxɔ ƒe ʋuʋu nu, ke menye be wòado vuvɔ ƒe ŋusẽ ɖe dzi o, si tae agbɔsɔsɔme ƒe fesre le kpuie ɖo: 0.5 va ɖo 2 le alafa me le eƒe lolome nu, eye dɔwɔwɔ akpa gãtɔ gogo 1 le alafa me. Le 0.5 le alafa me teti la, ka ʋɛ aɖewo koe le yameʋu si me gbagbãƒewo le me be woate ŋu axe mɔ nɛ. Ne wu alafa memama 2 la, kaawo doa kplamatse ne wole tsakatsaka me, dɔwɔwɔ ƒe ŋutete mu, eye ʋuʋudedi naa orientation layering si gblẽa yameʋu siwo gbɔdzɔ le ƒuƒoƒoawo dome. Fiber ƒe didime blana ɖe aggregate ƒe lolome si sɔ gbɔ wu ŋu, zi geɖe la, eƒe lolome zi gbɔ zi etɔ̃ ya teti, ne menye nenema o la, aggregate xea mɔ na fiber la eye network si yia edzi la medzɔna o; gake ne ewu milimeta 40 la, ka la nɔa anyi le ʋuʋudedi me. Ðoɖo si wotsaka la hea kpododonu geɖe vɛ wu agbɔsɔsɔme si wozãna. Tsɔ atikekui la kple ka la tsaka ƒuƒuie aɖabaƒoƒo eve va ɖo etɔ̃ ale be ka la nakaka ɖe atikekui la me, emegbe nàtsɔ tsi akpe ɖe eŋu; mègatsɔ tsi de eme gbã o eye nàhlẽ ka le emegbe, si nyea bɔl ɣesiaɣi. Dry-out curve lae tsoa nya me le emetsonua ŋu: lée ɖe Celsius degree 150 dzi be nàɖe tsi si le ablɔɖe me ɖa, lée ɖe 350 dzi be nàɖe tsi si ŋu atikewo bla la ɖa, eye emegbe ko hafi nàlia dzi wu 600 va ɖo subɔsubɔdɔ ƒe dzoxɔxɔ gbɔ, eye woadzidze ɣeyiɣi le afɔɖeɖe ɖesiaɖe me wòaɖo eƒe titrime. Dzoxɔxɔ kabakaba akpa eye ememe dzoxɔxɔ ƒe nyaƒoɖeamenu mekpɔ afi aɖeke o, anyigbaa dzi ƒuna, eye emae nye ɖeka si kpododonu ƒe nɔnɔme ka mate ŋu aɖe o. Dzeside kplɔa dzodoƒea ɖo: 304 le Celsius degree 650 te, 310S le 1000 te, eye 446 na dzodoƒe siwo le ƒe 1400 lɔƒo ko.

Nya Etɔ̃ Siwo Nàbia Nudzrala

Nyabiase etɔ̃ ƒoa ka na ka siwo mexɔ dzo o ƒe akpa gãtɔ. Gbã la, nye gɔmeɖoanyi ƒe dzeside 304, 310S alo 446, eye wònye nuzazã ƒe ɖaseɖigbalẽ si li. Evelia, nukae nye woƒe didime kple didime ŋutɔŋutɔ, zi geɖe la, woƒe didime nyea milimeta 0.3 va ɖo 0.5 eye woƒe didime nye milimeta 15 va ɖo 20, eye ɖe woate ŋu atso wo vaseɖe esime woƒe akpa si wotsɔ blae la ƒe titrime. Etɔ̃lia, ɖe dzoxɔxɔ ƒe ʋuʋu ƒe tsatsam ŋuti nyatakakawo lia. Le grade kple dzoxɔxɔ ƒe dzidzedzekpɔkpɔ gome la, gakpo ƒe nuwɔna ƒe axa ƒe akpa si me dzoxɔxɔ mele o la yɔ 304, 310S, 446 kple 430 kple dzoxɔxɔ kple dzoxɔxɔ ƒe ʋuʋudedi ŋuti nyatakakawo, siwo woate ŋu atsɔ akpe ɖe nyabiasea ŋu tẽ abe mɔ̃ɖaŋununya ƒe kpeɖeŋutɔ ene.