Silicon hlau 441thiabSilicon hlau 553sawv cev rau ob ntawm cov qib siv dav tshaj plaws rau txhuas casting thiab silicone chemical ntau lawm. Ntau tus kws tshaj lij kev muag khoom txawv teb chaws kho lawv raws li kev hloov pauv hloov tau, vim tias lawv cov ntsiab lus silicon zoo li ze ntawm cov ntawv qhia tshwj xeeb.
Los ntawm cov ntaub ntawv cog qoob loo tiag tiag, qhov sib txawv me me ntawm cov hlau, txhuas thiab calcium txwv tuaj yeem tsim kev mob taub hau loj. Factories tshaj tawm qhov kev hloov pauv tsis ruaj khov hauv aluminium yaj, ntau dua qhov ntim, tsis sib xws silicone monomer yield, npaj txhij txog batch variation thiab nce tsis lees paub tus nqi. Cov teeb meem no feem ntau rov qab mus rau qhov kev xaiv qib silicon tsis raug, tsis yog khoom siv tsis ua haujlwm.
Peb tau pom cov xwm txheej tiag tiag uas cov nroj tsuag tshuaj hloov mus rau pheej yig Silicon 553 los txiav kev siv nyiaj. Tom qab ob peb lub hlis, cov khoom poob los ntawm cov khoom tsis ruaj khov thiab cov khoom siv tu tau yuam lawv rov qab mus rau Silicon 441. Ntawm qhov tod tes, cov foundries ua cov khoom siv zoo tib yam siv nyiaj siv nyiaj siv 441 Silicon hlau thaum lawv cov khoom specification yeej tsis xav tau cov kev txwv nruj impurity.
Qib naming rau silicon hlau hais txog qhov siab tshaj plaws ntawm peb qhov tseem ceeb impurities: hlau, txhuas thiab calcium.
| Parameter | Silicon hlau 441 | Silicon hlau 553 | Daim ntawv qhia tswv yim rau cov neeg siv cog |
|---|---|---|---|
| Silicon min | 99.0 % | 98.5 % | Lub hauv paus siab dua silicon txo cov khoom noj tag nrho |
| Hlau max | 0.4 % | 0.5 % | Hlau ua nkig theem hauv aluminium castings |
| Aluminium max | 0.4 % | 0.5 % | Muaj zog cuam tshuam rau kev ua si ntawm silicone catalyst |
| Calcium max | 0.1 % | 0.3 % | Calcium tshuaj lom strontium modifiers rau txhuas, cuam tshuam cov tshuaj tiv thaiv silicone |
Kev ua tau zoo hauv aluminium casting ntau lawm
Calcium yog qhov tsis pom zoo tshaj qhov sib txawv ntawm ob qib no nyob rau hauv pem teb casting.
Silicon441 rau txhuas casting
Cov ntsiab lus calcium uas tsis tshua muaj siab tshaj 0.1% tiv thaiv strontium lossis sodium modifiers. Modifier fading qeeb qeeb, yog li cov qauv nplej thiab silicon particle morphology nyob ib puag ncig los ntawm tshav kub mus rau tshav kub. Qhov no yog qhov tseem ceeb rau A356, A357 thiab automotive die-cast Cheebtsam uas xav tau kev ua haujlwm ruaj khov thiab zoo anodizing nto zoo.
Tsawg hlau txwv txwv kev tsim cov hlau ntse nplua nuj intermetallic theem. Nyias phab ntsa castings thiab kev nyab xeeb muaj feem xyuam rau cov yam ntxwv qhov chaw qhia tsis tshua muaj kev pheej hmoo tawg thiab zoo elongation tus nqi. Melt generates tsawg dross, yog li lub cub tawg tu lub voj voog ntev dua.
Silicon hlau Qib 441 haum zoo thaum koj tsim tsheb chassis qhov chaw, cov khoom siv hluav taws xob siv hluav taws xob thiab kev ua haujlwm siab castings qhov tsis lees paub tus nqi siab. Txawm hais tias tus nqi yuav khoom zaum siab dua, ntau cov foundries pom qhov poob tag nrho los ntawm kev txo qis.
Si5licon53 rau txhuas casting
Silicon hlau Qib 553 ua haujlwm ntseeg tau rau cov khoom ntim khoom txhuas. Kev tsim kho cov ntaub ntawv, cov khoom siv tsis zoo uas tsis tseem ceeb thiab cov txheej txheem aluminium alloy tuaj yeem lees txais nws cov impurity profile thaum yaj cov txheej txheem kho kom raug.
Qhov kev pheej hmoo tseem ceeb yog los ntawm cov calcium ntau dua mus txog 0.3%. Yog tias koj ntxiv 553 Silion hlau rau hauv yaj kho nrog strontium modifier, residual calcium neutralizes modifier effect. Koj yuav pom qhov tsis sib xws ntawm cov nplej ua kom zoo, cov qauv silicon tsis sib xws thiab cov khoom tawg tawg tawg. Ntau pawg foundry siv sij hawm hloov kho qhov ntau npaum li cas yam tsis paub txog qib silicon nyoos yog lub hauv paus ua rau.
Cov ntsiab lus hlau ntau dua tuaj yeem tsim cov theem acicular brittle. Qhov no yuav tsis ua mob rau qhov zoo tib yam, tab sis dhau los ua qhov teeb meem loj rau cov phab ntsa nyias los yog siab tawv castings. Si553 kuj tsim ntau dross thaum melting, nce slag tshem tawm workload thiab hlau poob tus nqi.
Si553 muab tus nqi tiag tiag tsuas yog thaum koj cov khoom specification tso cai ntau dua impurity input thiab koj qhov chaw nres tsheb yaj muaj txaus degassing thiab lim peev xwm.
Kev ua tau zoo rau kev tsim cov tshuaj silicone
Silicone monomer synthesis yog rhiab heev rau kab impurities. Txawm tias me me ntawm txhuas, hlau thiab calcium hloov cov tshuaj tiv thaiv tus nqi, cov khoom tseem ceeb xaiv thiab tus nqi ntawm cov khoom pov tseg.
Si441 rau kev tsim silicone
Si441 yog lub luag haujlwm tseem ceeb rau kev tsim cov dimethyldichlorosilane. Tsawg calcium ua rau cov tshuaj tiv thaiv kev ua haujlwm ruaj khov thoob plaws kev tsim khoom. Kev tswj hwm qib aluminium txhawb kev ua haujlwm catalyst kom tsis txhob thawb cov khoom seem uas tsis xav tau.
Reactor tshav kub hloov mus nyob twj ywm ntau kwv yees. Tsawg cov khoom tso nyiaj ua rau ntawm cov reactor sab hauv phab ntsa, txuas ntxiv kev ua haujlwm tsis tu ncua thiab txo cov zaus kaw rau kev ntxuav. Rau mid scale silicone kab mus nrhiav cov khoom ruaj khov, 441 qib Silicon hlau muaj qhov sib npaug purity thiab tus nqi piv rau cov qib siab tus nqi tshwj xeeb.
Si553 rau kev tsim silicone
Si553 tsis tshua pom zoo rau cov qauv silicone monomer synthesis. Cov ntsiab lus aluminium siab dua cuam tshuam cov copper catalyst tus cwj pwm. Cov khoom lag luam tseem ceeb xaiv poob qis, thiab cov khoom lag luam hnyav los ntawm cov khoom lag luam nce kev ua haujlwm rau cov tshuab distillation.
Cov calcium ntau dua ua rau cov tshuaj tiv thaiv thaum ntxov tab sis tsim cov kab mob tsis ruaj khov. Batch conversion tus nqi swing nce thiab nqis. Hlau saum toj no 0.5% qhov pib txhawb nqa cov txheej txheem nyuaj tsim hauv reactor, uas ua rau cov khoom siv hnav thiab nce nqi kho.
Ib tug tsawg kawg nkaus silicone derivative nroj tsuag siv 553 qib Silicon hlau tom qab ntxiv kev kho mob ua ntej. Tab sis feem ntau cov chaw ua haujlwm silicone tsis txhob noj ncaj qha ntawm Si553 rau hauv lub ntsiab synthesis voj. Tus nqi ntxiv rau kev lim dej hauv qab feem ntau tshem tawm cov khoom siv raw khoom.
Xaiv Si441 yog tias muaj xwm txheej tshwm sim:
Automotive, nyias phab ntsa los yog siab toughness aluminium castings siv strontium modifier
Cov khoom yuav tsum tau ruaj khov anodizing nto tiav
Standard silicone monomer synthesis kab
Ntau lawm nrog tsawg kam rau ua batch rau batch fluctuation
Xaiv Si553 yog tias tag nrho cov xwm txheej siv:
General aluminium castings lossis kev tsim kho profiles yam tsis muaj kev hloov kho nruj
Koj qhov chaw nres tsheb melting muaj zog dross tuav thiab lim muaj peev xwm
Cov khoom specification lees txais ntau dua hlau thiab calcium impurity
Koj tsis tau khiav cov txheej txheem silicone monomer synthesis
Hlau Silicon 441 thiab Hlau Silicon 553 tsis yooj yim xaiv zoo lossis phem. Qhov kev xaiv zoo dua los ntawm kev sib piv impurity profile rau koj cov khoom xav tau thiab cov kab mob tiag tiag.
Tsis txhob txiav txim siab raws li qhov feem pua silicon thiab tus nqi ntawm qhov chaw. Ntsuas seb cov hlau, txhuas thiab calcium impurities cuam tshuam li cas nrog koj cov kev ua haujlwm metallurgical uas twb muaj lawm. Qhov tseem ceeb hauv seem kev pheej hmoo thiab cov khoom siv pabcuam kom tau txais daim duab nqi tiag tiag. Txoj hauv kev no pab kev yuav khoom thiab pab pawg ua haujlwm kom zam dhau qhov kev poob qis.
FAQ
Q1: Si553 puas tuaj yeem hloov Si441 thaum lub sijhawm khoom tsis txaus?
A: Kev hloov lub cev yog ua tau, tab sis tsis ntsaws thiab ua si. Rau txhuas casting, saib xyuas kev hloov kho kev ua tau zoo thiab dross tiam ze. Rau silicone lub ntsiab synthesis, Si553 tsis haum rau kev hloov ncaj qha. Koj xav tau kev sim tag nrho ua ntej ua tiav qhov kev tsim tawm.
Q2: Cov ntaub ntawv dab tsi yuav tsum cov neeg yuav khoom thov rau cov khoom siv silicon hlau?
A: Mill xeem daim ntawv pov thawj npog tag nrho Fe, Al, Ca, Si tsom xam. Paub meej tias daim ntawv qhia qhov loj me. Rau kev txiav txim siab ntim koj tuaj yeem ntxiv kev tshuaj xyuas thib peb ua ntej xa khoom.
Q3: Vim li cas kuv thiaj li tau txais qhov tsis sib xws ntawm kev ua haujlwm zoo txawm tias kuv pheej yuav Si553 los ntawm tib tus neeg muag khoom?
A: Si553 tus qauv tso cai rau ntau yam impurity. Kev hloov pauv ntawm calcium nyob rau hauv cov khoom sib txawv yog qhov ua rau sab saum toj. Tshuaj xyuas MTC rau txhua pawg thiab kho cov txheej txheem yaj raws li.
Q4: Kev lim dej ntxiv puas tuaj yeem kho cov teeb meem calcium siab uas coj los ntawm Si553 hauv txhuas yaj?
A: Kev lim tshem tawm cov khoom sib xyaw ua ke, tab sis tsis tuaj yeem tshem tawm cov calcium yaj hauv molten aluminium. Modifier tshuaj lom nyhuv tseem nyob. Lim tsis tuaj yeem daws qhov teeb meem hauv paus.
