2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2024-01-18 12:13
Rau ntau yam khoom siv hlau thiab cov qauv siv rau sab nraum zoov, tsis yog txhua yam xim tsim nyog uas tuaj yeem tiv thaiv cov khoom los ntawm qhov tsis zoo ntawm ib puag ncig. Rau cov hom phiaj no, muaj cov khoom sib xyaw tshwj xeeb organosilicon, qhov tsim nyog tshaj plaws uas yog txha hniav laus "KO-811". Nws tshwj xeeb tiv thaiv xeb thiab cov khoom tiv taus cua sov tau suav tias yog qhov zoo tshaj plaws rau cov hlau xws li hlau, txhuas, titanium.
Muaj pes tsawg leeg thiab cov lus qhia tshwj xeeb
Cov nplaum yog raug tshem tawm raws li cov kua roj vanish silicone thiab ntau yam xim xim. Muaj ob hom khoom lag luam-"KO-811", tsim tawm hauv peb qhov xim yooj yim (liab, ntsuab, dub), thiab "KO-811K" kev daws teeb meem, nplua nuj nrog cov muab tshuaj, tshwj xeeb ntxiv thiab ua kom ruaj khov "MFSN-V". Ua tsaug rau qhov no, nws cov xim sib txawv ntau dua - cov xim zoo li dawb, daj, xiav, txiv ntseej, xiav, tsaus thiab xim av xim av, nrog cov xim hlau.
Qhov sib txawv tseem ceeb ntawm ob hom kev sib xyaw yog "KO-811K" yog ob yam khoom siv sib xyaw , thiab txhawm rau txhawm rau txhawm rau nws, nws yog qhov tsim nyog los sib xyaw cov khoom ntim ib nrab tiav nrog cov tshuaj ruaj khov. Ib qho ntxiv, nws muaj cov xim zoo dua qub. Txwv tsis pub, cov yam ntxwv thiab cov yam ntxwv ntawm ob txheej hniav yog ua tib yam.
Lub hom phiaj tseem ceeb ntawm kev sib xyaw yog txhawm rau tiv thaiv cov hlau hauv lub sijhawm ua haujlwm raws li qhov kub thiab txias nce mus txog +400 degrees, thiab qhov kub tsis txias - txog -60 degrees.
Cov xim tshwj xeeb:
- Cov khoom siv tiv taus cov av qis, roj thiab sib xyaw ua ke xws li roj av, uas tso cai rau nws siv hauv cov khoom siv uas muaj kev sib cuag ncaj qha nrog cov kua no.
- Qhov zoo viscosity ntawm 12-20 chav nyob nruab nrab ntawm chav sov ua rau nws muaj peev xwm thov tau sai thiab yooj yim los ntawm kev siv lub tshuab hluav taws xob thiab cov tshuab pneumatic.
- Tom qab ziab, cov zaj duab xis ywj nrog cov tuab tsis ntau tshaj 3 hli cov ntawv ntawm cov hlau, yog li ntawd, txawm tias cov khoom lag luam me me yuav raug rau xim. Ib qho ntxiv, qhov tsis sib xws ntawm txheej txheej thiab nws qhov ua kom du yog qhov tseem ceeb rau kev khaws cia lub ntsej muag qub thaum lub sijhawm siv tag nrho.
- Kev tiv thaiv tshav kub ntawm qhov kub hnyav yog 5 teev.
- Cov txheej txheej ruaj khov tsis raug rau cov khoom siv puas tsuaj hauv siab thiab cuam tshuam.
Qhov txiaj ntsig zoo yog kev lag luam ntawm cov hniav - nws siv ib 1 m2 tsuas yog 100 grams nrog txheej tuab ntawm 50 microns. Cov khoom siv tiv tshav kub tuaj yeem siv tau ob qho tib si sab nraum zoov thiab hauv chav nrog cov av noo siab.
Kev npaj daws teeb meem
Cov hniav ntawm ob hom yuav tsum tau sib xyaw kom zoo ua ntej siv kom txog thaum lawv yog homogeneous. Nws yog ib qho tseem ceeb uas tsis muaj cov hmoov av me me los yog npuas nyob. Yog li ntawd, tom qab nplawm, cov tshuaj raug khaws cia rau lwm 10 feeb kom txog thaum lawv ploj tag.
Cov nplaum "KO-811" yog diluted nrog xylene lossis toluene los ntawm 30-40% . Qhov muaj pes tsawg leeg "KO-811K" tau muab rau hauv daim ntawv ntawm kev ncua, pleev xim thiab ua kom ruaj khov. Tus nqi dilution rau cov xim dawb yog 70-80%, rau lwm cov xim - txog li 50%.
Qhov no yuav tsum tau ua ua ntej cov hlau nto tau npaj . Kev npaj daws yuav tsum siv tsis pub dhau 24 teev. Qee zaum qhov sib xyaw ua ke xav tau kev ntxiv ntxiv rau kev ua haujlwm. Tom qab ntawd siv cov kuab tshuaj "R-5", hnyav thiab lwm yam ntxhiab tsw ntxhiab. Txhawm rau kom tau txais kev pom zoo sib xws, kev daws teeb meem raug ntsuas nrog viscometer, qhov tsis ntsuas viscosity feem ntau tau teev tseg hauv daim ntawv pov thawj zoo.
Yog tias muaj kev cuam tshuam hauv kev ua xeb yuav tsum tau ua, nws yog qhov zoo dua los khaws cov khoom sib xyaw kaw thiab nco ntsoov ua kom rov ua haujlwm dua.
Ntxuav cov hlau
Kev npaj cov txheej txheem rau pleev xim yog qhov tseem ceeb rau kev ua kom zoo rau cov hniav.
Nws suav nrog ob theem tseem ceeb:
- Ntxuav thaum av, cov xim qub qub, cov roj nplaum, nplai thiab xeb raug tshem tawm. Qhov no yog ua tiav los ntawm tshuab lossis ua haujlwm, lossis nrog kev pab ntawm lub cuab yeej tshwj xeeb - lub tshuab tua hluav taws. Kev tu lub tshuab muab qib "SA2 - SA2, 5" lossis "St 3". Nws muaj peev xwm siv cov tshuaj tshem tawm xeb.
- Degreasing tsim los ntawm xylene, hnyav, acetone siv cov khaub ncaws. Nws raug nquahu kom ua qhov no ua ntej pib pleev xim, tsis pub dhau ib hnub tom qab thaum ua haujlwm sab hauv. Rau kev ua haujlwm sab nraum zoov, yam tsawg kawg rau teev yuav tsum dhau mus.
Ib feem ntawm cov hlau raug tso cai thaum muaj xwm txheej zoo. Qhov tseem ceeb tshaj plaws yog lub hauv paus yog huv, qhuav thiab muaj cov xim ci ci zoo ib yam ua ntej thov pleev xim.
Cov txheej txheem zas xim
Kev ua haujlwm yuav tsum tau ua ntawm qhov av noo tsawg dua 80%, hauv qhov kub ntawm -30 txog +40 degrees. Cov tshuaj tsuag tsuag yuav muab tshuaj tsuag kom zoo, qhov tsawg kawg ntawm cov txheej yog ob.
Nws yog qhov tsim nyog yuav tsum coj mus rau hauv tus account qee qhov subtleties thaum tha xim:
- Ntawm thaj chaw uas tsis muaj kev nkag tau yooj yim, pob qij txha thiab cov npoo, nws yog qhov zoo dua los siv cov tshuaj sib xyaw nrog txhuam los ntawm txhais tes.
- Thaum siv pneumatics, qhov deb ntawm lub cuab yeej lub taub hau mus rau saum npoo yuav tsum yog 200-300 hli, nyob ntawm seb lub cuab yeej siv li cas.
- Cov hlau tau pleev xim rau hauv ob lossis peb txheej ntawm kev ncua ntev txog ob teev, yog tias qhov ntsuas kub qis dua xoom, lub sijhawm tawg yog ob npaug.
- Kev pib ziab qhuav yuav siv sijhawm ob teev, tom qab uas cov polymerization tshwm sim thiab ziab zaum kawg, uas ua tiav hauv ib hnub.
Kev siv cov zas tuaj yeem sib txawv ntawm 90 txog 110 grams rau ib square meter, nyob ntawm qhov kev ntxhib los mos ntawm lub hauv paus, qib ntawm nws qhov porosity thiab kev paub ntawm tus tswv.
Thaum ua haujlwm, ua raws txoj cai kev nyab xeeb . Txij li cov txha hniav laus muaj cov kuab tshuaj, qhov no txiav txim siab txog qib III ntawm kev phom sij rau tib neeg kev noj qab haus huv. Yog li ntawd, rau kev ua haujlwm ntsiag to thiab tsis muaj kev phom sij ntawm cov txheej txheem, koj yuav tsum tau saib xyuas qhov tso pa tawm ntau tshaj plaws ntawm chav, cov cuab yeej tiv thaiv tus kheej, ib txwm muaj cov khoom siv ntawm tes - xuab zeb, daim pam hluav taws asbestos, ua npuas dej lossis cov pa roj carbon dioxide tua hluav taws.
Pom zoo:
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