Nov yog qhov uas hais txog cov khoom tsis zoo li qub: peb tsev neeg - castable, ramming mass, thiab yas refractory - ua tib txoj haujlwm ntawm daim ntawv thiab ntau txoj haujlwm sib txawv hauv kev xyaum. Tag nrho peb yog muab tso rau ntawm qhov chaw thiab sintered los ntawm thawj tshav kub. Qhov sib txawv zaum nyob rau hauv yuav ua li cas lawv nyob nraum ntsia, lawv ntom npaum li cas, thiab dab tsi lawv zam thaum ci - tawm. Xaiv los ntawm qhov chaw ua ntej: ncuav dab tsi tuaj yeem nchuav, ram dab tsi yuav tsum tau rammed, thaj nrog yas. Txoj cai ntawd txuag cov ntaub ntawv ntau dua li cov lus qhia qib. Phau ntawv qhia no suav nrog peb tsev neeg, qhov twg txhua tus yeej, thiab cov lej los sib piv lawv.
Qhov txawv ntawm Castable, Ramming Mass thiab yas yog dab tsi?
Castable yog dej -sib xyaw refractory uas ntws los yog vibrates rau hauv qhov chaw thiab kho los ntawm hydration - nplooj refractory castable yog nqa cov khoom lag luam. Peb npog nws tsev neeg hauv pebcastable yam qhia- cement-bonded los ntawm ULCC, tus kheej - ntws los ntawm phom.
Ramming huab hwm coj yog qhuav los yog semi{0}} sib tov qhuav, muab tso rau hauv cov khaubncaws sab nraud povtseg thiab compacted nrog pneumatic rammer los yog tes. Tsis muaj dej chemistry ua qhov kev khi - rammed ntom thiab thawj qhov cua sov ua. Nws sinters mus rau hauv ib qho kev sib koom ua ke, tuab hauv ob sab phlu.
Yas refractory yog ib qho av nplaum, av nplaum- sib xyaw ua ke nrog cov yas txaus kom zoo li tus tes, hammered, los yog nias rau hauv qhov chaw. Nws yog qhov kev zam txim tshaj plaws ntawm peb thaum lub sijhawm teeb tsa thiab qhov qis tshaj plaws hauv lub zog raug rho tawm haujlwm.
Cov npe tsis meej pem cov neeg yuav khoom vim tias tag nrho peb zoo li cov hnab ntim hmoov. Qhov txawv tsuas yog qhia ntawm qhov chaw tso kawm, thiab qhov ntawd yog qhov kev xaiv nyob.
Yuav ua li cas Installation txhais cov kev xaiv
Kev teeb tsa yog qhov kev txiav txim siab tiag tiag, thiab nws txiav txim siab qhov seem.
Castable xav tau dej, sib tov khoom, formwork los yog lub twj tso kua mis, thiab ib lub sij hawm kho ua ntej tshav kub. Cov nyiaj them poob haujlwm yog qhov siab tshaj CCS ntawm peb - 40 txog 110 MPa nyob ntawm qib, los ntawm peb cov lej hauv phau ntawv qhia castable.
Ramming huab hwm coj xav tau kev nkag mus thiab ua haujlwm - txheej los ntawm txheej, compacted los ntawm rammer kom txog rau thaum qhov ceev yog txoj cai. Nws yog qeeb, txawj ua haujlwm. Cov nyiaj them poob haujlwm yog cov qauv ntom ntom ntawm peb, vim tias txhua yam compaction yeej ib qho kev sib cog lus hydration. Pebsilica ramming lojkhiav SiO₂ ntawm 90% thiab siab dua, refractoriness yav dhau los 1,750 degree, thiab rammed hauv ob sab phlu coj zoo li ib qho thaiv hluav taws xob.
Yas refractory yuav luag tsis muaj dab tsi - txiav, puab, rauj, thiab cua sov. Tsis muaj formwork, tsis sib tov, tsis muaj sij hawm kho. Kev them nyiaj yog ceev thiab ncav cuag; tus nqi yog lub zog.
Qhov twg Ramming Mass khwv tau nws khaws cia
Ramming loj yog tus qauv rau induction furnaces. Coreless induction furnace linings - crucible, hauv pem teb, caj pas - yog rammed nyob rau hauv cov khaubncaws sab nraud povtseg nrog ib tug qhuav los yog semi-magnesia qhuav, alumina, los yog silica mix, ces sintered los ntawm thawj yaj. Lub hauv ob sab phlu yog lub pob zeb monolithic uas tsis muaj pob qij txha rau cov hlau nrhiav, thiab thaum nws hnav, tag nrho cov hauv ob sab phlu raug tshem tawm thiab rov ua dua -rammed.
Tias yog vim li cas foundries thiab steel nroj tsuag khaws ramming loj nyob rau hauv lawv cov qauv Tshuag. A 1-tuj induction rauv hauv ob sab phlu muaj sia nyob ntawm ramming zoo: txheej thickness, rauj zog, thiab sinter kub. Peb xa cov qib magnesia rau steel thiab qib silica rau tooj liab thiab txhuas - silica qib qis thermal expansion yog dab tsi ua kom nws ruaj khov los ntawm ntau txhiab melts.
Induction rauv ramming yog nws cov khoom siv tes ua. Cov hauv ob sab phlu mus rau hauv txheej los ntawm txheej, feem ntau 50-80 mm ib lub nqa, txhua qhov compacted kom txog thaum lub rammer bounces es tsis txhob sinking. Cov txheej txheem sinter ces fuses cov khaubncaws sab nraud povtseg rau hauv ib lub cev. Tau txais txoj cai ramming thiab cov kab mob magnesia nyob rau hauv ib lub steel foundry khiav 80-120 heats; tau nws tsis ncaj ncees lawm thiab thawj yaj pom qhov chaw tsis muaj zog.
Ramming huab hwm coj kuj kab blast furnace troughs, taphole mixes, thiab cub hauv qab qhov twg ib tug ntom, tsis sib koom lub cev ntaus txhua yam poured.
Qhov twg yas Refractory haum
Yas refractoryyog qhov kho thiab khib- cov khoom zoo li. Hluav taws xob rauv lub ru tsev, tsau rauv phab ntsa, annealing furnace linings, burner arches - qhov chaw uas ib tug neeg coob yuav tsum tau los tsim cov khoom ntawm tes thiab qhov twg formwork yog impractical.
Lub binder yog cov av nplaum yas, 10-25% ntawm cov khoom sib xyaw, uas yog qhov ua rau cov khoom siv ua haujlwm tau zoo thiab txwv nws lub zog raug rho tawm haujlwm. Yas refractory khiav CCS nyob rau hauv 20-40 MPa ntau - zoo rau cov phab ntsa thiab ru tsev, tsis ncaj ncees lawm kev cuam tshuam los yog abrasion zones. Peb cov nplooj ntawv yas castable npog cov qib peb xa khoom rau cov cua sov ua haujlwm.
Dab tsi yas ua zoo dua txhua yam: thaj. Ib cheeb tsam hnav tau raug txiav tawm, cov yas tshiab hammered nyob rau hauv, thiab lub cub tawg yog rov qab los ntawm tshav kub yam tsis muaj kev cuam tshuam tag nrho. Lub voj voog kho ntawd yog vim li cas cov yas nyob hauv cov ntawv teev npe txawm tias qhov twg castable yuav ua tus thawj hauv ob sab phlu.
Yas ya raws yog ob qho tib si nws cov cuab yeej thiab nws qhov txwv. Cov av nplaum nplaum khaws cov khoom sib xyaw ua haujlwm tau ntau hnub tom qab qhib lub hnab, yog li cov neeg ua haujlwm txiav thiab kho lawv tus kheej. Cov dej noo tib yam ntawd ua rau lub zog qab nthab - uas yog vim li cas cov yas tsis muaj kab zones nyob rau hauv kev sib cuag hlau ncaj qha.
Qhov twg Castable tseem nyob qhov qub
Castable nyob twj ywm lub neej ntawd rau feem ntau ntawm monolithic hauv ob sab phlu ua haujlwm. Nws ntws mus rau hauv cov duab, nws vibrates tiaj tus, nws twj rau hauv ductwork, thiab nws lub zog kho tau yeej ob tus neeg sib tw hauv ntau thaj chaw. Rau cov phab ntsa, pem teb, arches, thiab linings uas xav tau formwork lawm, castable yog cov lus teb economical - thiab tag nrho cov monolithic refractory ntau yog ua nyob ib ncig ntawm nws.
Lub ciam teb yog qhov yooj yim: yog tias cheeb tsam tuaj yeem nchuav, ncuav nws. Ram dab tsi yuav nchuav tsis tau - crucibles, bottoms, troughs. Patch dab tsi hnav hauv zos nrog yas.
Lub zog, ntom thiab ci -Tawm piv
Cov lej ib sab, los ntawm peb cov ntaub ntawv tsim khoom.
Castable: CCS 40-110 MPa, dej xav tau 5-12%, porosity nruab nrab, thiab qhov xav tau tshaj plaws ci-tawm - nrawm heev thawj cov cua sov thiab cov pa tso pa tawm hauv ob sab phlu.
Ramming huab hwm coj: qhov ntom ntawm peb, CCS nyob rau hauv 40-70 MPa ntau tom qab sintering, nyob ze -zero dej nyob rau hauv lub mix, thiab ib tug ci-tawm uas xav tau ib tug tswj ramp tab sis zam kev ua yuam kev zoo dua castable. Qib silica tuav tus cwj pwm refractory rau 1,750℃thiab siab dua.
Yas: CCS 20-40 MPa, qhov dej noo siab tshaj plaws ntawm peb, thiab qhov kev zam txim tshaj plaws yog ci- tawm - cov hnab yas tsis tshua muaj qhov tshwm sim thawj zaug vim tias cov av nplaum nplaum ua rau chav dej noo kom dim.
Lub ntsiab lus kawg no tseem ceeb tshaj li cov neeg yuav khoom xav. Nyob rau hauv ib tug maj mam kaw, ib tug yas thaj yuav nyob rau hauv tshav kub nyob rau hauv lub sij hawm; ib lub castable thaj xav tau nws txoj kev hwm.
Yuav xaiv li cas: Plaub Daim tshev
Plaub daim tshev txiav txim nws. Khiav lawv tawm tsam koj cheeb tsam.
Nws puas tuaj yeem nchuav? Yog tias muaj dej, formwork, thiab lub qhov rais kho, castable yog cov lus teb.
Yuav tsum yog sib koom ua ke thiab ntom? Crucibles, hauv qab, troughs - uas yog ramming loj thaj chaw, thiab tus nqi zog yog tsim nyog los ntawm lub neej nyob.
Puas yog thaj chaw lossis ib qho txawv? Yas. Txiav, puab, rauj, rov qab rau ntawm tshav kub.
Lub qhov cub puas yog induction unit? Ramming loj, nres tag nrho. Lub sintered crucible yog tib txoj hauv kev pov thawj rau coreless induction rauv.
Peb txoj cai: ncuav dab tsi yuav tsum tau poured, ram dab tsi yuav tsum tau rammed, thaj nrog yas. Peb muab tag nrho peb los ntawm tib tsob nroj, yog li qhov kev pom zoo tsis yog hais txog qhov peb tshwm sim rau Tshuag.
Ordering: Lub Sijhawm Leading, Them Nyiaj & Ntim
Lub sij hawm xa tuaj yog 7-12 hnub los ntawm kev tso nyiaj rau cov qauv qib, 15-20 hnub rau kev ntim khoom thiab qib tshwj xeeb sinter. Kev them nyiaj yog T / T nrog 30% tso nyiaj thiab 70% ua ntej xa zaub mov. Ntim yog 25 kg hnab rau ntawm pallets nrog cov hnab ntim sab hauv, lossis cov hnab ntim loj rau kev sib tw loj; ramming huab hwm coj ships qhuav-sealed vim noo noo yog yeeb ncuab ntawm ib tug zoo ram.
Xa peb koj lub cub tawg hom, thaj tsam hauv ob sab phlu, thiab cov hlau los yog hlau raug melted. Peb mam li lees paub cov khoom siv hauv tsev neeg, qib, thiab kev taw qhia qhov chaw nyob hauv 24 teev - thiab yog tias koj nug txog qhov twg castable yuav ua, peb cov engineers yuav qhia rau koj.
Cov kab hauv qab: castable, ramming mass, thiab yas refractory txhua tus kheej ib lub ces kaum ntawm ob sab - ncuav dab tsi yuav tsum tau poured, ram dab tsi yuav tsum tau rammed, patch nrog yas. Muab cov tsev neeg rau qhov chaw tso, thiab lub hauv ob sab phlu. Xa koj cov ntaub ntawv lub nkoj tuaj rau peb, thiab peb yuav muab cov npe khoom hauv 24 teev.
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