Steel ladle yog lub thawv rau molten steel, thiab cov khoom siv refractory feem ntau muaj xws li alumina-magnesia spinel castable, magnesia-alumina spinel cib, thiab ladle lining bricks. Alumina-magnesia spinel yuav txhim khu kev tiv thaiv ntawm cov ntaub ntawv refractory. Alumina-magnesia spinel castable tseem hu ua corundum los yog high-alumina-magnesia spinel refractory castable, los yog composite alumina-magnesia spinel refractory castable. Nrog lawv cov kev ua tau zoo heev, lawv tau siv dav hauv nruab nrab thiab loj-loj steel ladles.
Magnesia-alumina spinel muaj kev tiv thaiv corrosion zoo heev, muaj zog tiv thaiv kev yaig thiab tawg, zoo heev slag kuj, abrasion tsis kam, zoo thermal shock stability, thiab high-temperature endurance. Nws yog cov khoom siv zoo tshaj plaws rau kev tsim cov magnesia-alumina spinel cib rau cov chaw kub kub hauv cov cement rotary, ladle lining bricks, thiab ladle castables. Magnesia-alumina spinel yog dav siv nyob rau hauv cov ntaub ntawv refractory, steel metallurgy, teb cement kilns, thiab iav kev lag luam kilns.
1. Alumina-Magnesia Spinel Castable rau Steel Ladles: Cov khoom no yog los ntawm qib high-qib bauxite, corundum, thiab high-purity spinel raws li cov ntaub ntawv tseem ceeb, nrog rau qhov tsim nyog cov nqi ntawm additives thiab dispersants. Nws yog tus cwj pwm los ntawm cov khoom loj loj thiab zoo heev durability.
2. Kev Cia Siab Rau Ladle Castables: Lub castable yuav tsum tau khaws cia raws li nws hom thiab qib nyob rau hauv ib qho chaw qhuav, ventilated warehouse nrog rainproof chaw los tiv thaiv ya raws. Tsis txhob cia lub sij hawm ntev, uas yuav ua rau cov tshuaj binder deterioration thiab cuam tshuam rau nws cov kev ua tau zoo.
3. Txee Lub neej: Raws li kev cia siab zoo, lub txee lub neej yog rau lub hlis. Tom qab rau lub hlis, lub cev thiab tshuaj lom neeg yuav tsum tau kuaj ua ntej siv.
Kev npaj kev tsim kho
1. Pre-construction Plan: Ib txoj kev npaj tsim kho thiab qhov chaw layout yuav tsum tau npaj ua ntej high-temperature castable installation. Muab cov lus qhia luv luv rau txhua tus neeg ua haujlwm tsim kho, xyuas kom lawv nkag siab txog cov txheej txheem tseem ceeb thiab cov yam ntxwv ua haujlwm ntawm lub ladle castable.
2. Kev tuav cov khoom siv: cov ntaub ntawv tsim kho yuav tsum tau muab cais rau ntawm qhov chaw lossis ib sab ntawm lub tshuab tov khoom, nrog rau cov neeg ua haujlwm thauj khoom los ntawm lub tsev rau khoom. Xyuas kom cov khoom nyob twj ywm qhuav thiab tiv thaiv los nag.
3. Kev tshuaj xyuas cov khoom: Castable cov qauv yuav tsum tau coj mus kuaj ua ntej siv. Tsuas yog castables ua tau raws li cov qauv kev cai yuav tsum tau siv.
Txheej txheem Casting
1. Vibration Casting: Siv 30 ~ 50mm vibrator pas nrig los ua kev vibration casting.
2. Casting Ladle hauv qab: Ntxiv cov khoom siv txaus thiab co sib npaug siv lub vibrator pas nrig kom ntseeg tau tias cov txheej txheem casting yog qhov tseeb tuab lossis tuab me ntsis.
3. Muab cov Pwm Core: Tom qab nrum hauv qab, tso cov khoom siv rau 2 mus rau 4 teev. Muab cov pwm pwm tso rau hauv nruab nrab ntawm lub ladle, kom ntseeg tau tias nws raug sib dhos thiab ua kom zoo. Qhov saum npoo ntawm cov pwm pwm yuav tsum huv thiab kho nrog roj kom yooj yim demolding.
4. Vibration Casting Considerations:
• Lub vibrator pas nrig yuav tsum tsis txhob kov lub hauv paus pwm lossis cov khoom siv rwb thaiv tsev. Tuav qhov kev ncua deb ntawm cov tub ntxhais pwm, tsis pub ntau tshaj 50mm.
• Qhov tob tob yuav tsum tsis txhob nkag mus rau hauv cov txheej txheem castable, tab sis kuj yuav tsum tsis pub tshaj 50mm los ntawm cov txheej hauv qab.
• Qhov kev ncua deb ntawm cov ntsiab lus ntxig yuav tsum tsis pub tshaj 200mm, kom ntseeg tau tias muaj kev sib txuam thiab kev co. Tshem tawm lub vibrator pas nrig maj mam kom tsis txhob tawm hauv qhov khoob.
• Tus neeg tsav tsheb tshwj xeeb yuav tsum tswj lub vibrator pas nrig. Yog tias muaj teeb meem zoo tshwm sim, lawv yuav tsum tau kho tam sim ua ntej txuas ntxiv mus.
• Thaum nrum lub ladle phab ntsa, co txhua ob txheej ntawm cov khoom nyob ib ncig ntawm tag nrho cov ncig. Txhua txheej yuav tsum yog kwv yees li 250mm tuab, kom ntseeg tau tias txawm tias kev faib tawm thiab kev co. Tsis txhob muaj kev vibration tsis sib xws, thiab xyuas kom tsis muaj qhov chaw tuag.
Demolding
1. Tom qab lub ladle phab ntsa tau vibrated, txav lub ladle mus rau ib qho chaw sov me ntsis kom cov dej evaporation thiab cov castable kom qhuav. Demolding yuav tsum tshwm sim tom qab tsawg kawg 12 teev, feem ntau ntawm 12 mus rau 24 teev, nyob ntawm seb qhov hardness ntawm lub hauv ob sab phlu.
2. Tom qab demolding, cia lub castable kom qhuav ib txwm 24 teev. Nws yog qhov zoo tshaj plaws los hloov nws mus rau lub ladle preheating cheeb tsam kom ceev cov txheej txheem ziab thiab npaj rau ladle ci.
Ci
1. Cov txheej txheem ci: Muab cov dej noo siab thiab cov qauv ntom ntom ntawm cov castable, noo noo tso tawm qeeb. Cov txheej txheem ci yuav tsum ua raws li "tsawg cua sov rau lub sijhawm ntev", nrog rau qhov kub thiab txias kom tsis txhob muaj cua sov tam sim ntawd, uas tuaj yeem ua rau muaj kev sib kis. Yuav tsum siv lub ladle ci tshuab, ua raws li 72- teev ci txoj cai, nrog rau cov theem hauv qab no:
• Tsawg cua sov theem: Tsawg kawg 3 hloov, 24 teev (siv 1/2 roj, tsis muaj npog).
• Nruab nrab cua sov theem: Yam tsawg kawg 3 hloov, 24 teev (siv 1/3 gas, nrog rau ib co cua thiab ib lub hau).
• Siab kub theem: Tsawg kawg 3 hloov, 24 teev (tag nrho cov pa roj, cua puv, nrog lub hau).
2. Baking Curve: Saib daim duab ci ci.
3. Cov txheej txheem ua tiav: Cov txheej txheem ci yog ua tiav thaum tsis muaj cov pa ntxiv tawm ntawm lub ladle ntug lossis phab ntsa vents.
4. Nruam Baking: Thaum cov txheej txheem ci pib, nws yuav tsum txuas ntxiv yam tsis muaj kev cuam tshuam kom tsis txhob muaj teeb meem txheej txheej los yog spilling.
Kev ua haujlwm
1. Tom qab lub ladle tau muab tso rau hauv kev siv, xyuas kom ceev ceev ceev kom nce kev siv thiab kev hloov pauv.
2. Rau hnav lossis yaig ntawm kab slag, kho nrog castable zoo tib yam. Vibrate cov khoom rau hauv qhov chaw thiab du nrog ib tug trowel kom ntev lub ladle lub neej kev pab cuam thiab txo castable noj.