Styrofoam granules tau dhau los ua neeg nyiam hauv kev tsim kho. Lawv tsis yog qhov qis dua hauv lawv cov yam ntxwv rau lwm hom cua sov, thaum lawv txawv ntawm tus nqi qis thiab kev phooj ywg ib puag ncig. Lawv qhov loj tuaj yeem sib txawv ntawm 2 mus rau 8 mm. Cov granules muaj tus qauv tuab muaj cov huab cua, vim lawv tau txais qib qis ntawm thermal conductivity thiab dej nqus.
Ntau yam
Muaj ob yam khoom:
- Piv txwv polystyrene ua npuas ncauj. Txhua lub ntsiab lus muaj qhov tsis sib xws thiab raug muag hauv ntau qhov kev hloov kho, piv txwv li, "Mark-50" thiab "Mark-15", txhua tus muaj qee yam khoom siv thiab lub cev.
- Secondary. Nws yog ib tug by-product tau nyob rau hauv kev tsim ua npuas ncauj. Kev nthuav dav polystyrene granules muaj cov duab tsis zoo, tab sis lawv cov khoom tsis yog qis dua rau thawj hom.
xaivsiv
Cov khoom siv tau dav thiab siv raws li:
- ntau ntim rau hauv cov thawv ntim khoom;
- bases rau cov lim dej hauv cov txheej txheem kho dej;
- muab rau cov khoom ua si mos, rooj tog zaum, hauv ncoo;
- rwb thaiv tsev rau phab ntsa, cov plag tsev thiab cov plag tsev;
- txuag hluav taws xob thiab suab nrov-insulating txheej hauv cov txheej txheem;
- khoom siv kho kom zoo nkauj (tsim cov khoom siv tes ua thiab cov khoom sab hauv);
- filling rau pontoons.
Foamed polystyrene granules ua raws li ib qho ntawm cov khoom tseem ceeb hauv kev npaj cov pob zeb nthuav dav polystyrene, uas yog qhov zoo tshaj plaws rau insulating interfloor ceilings, ru tsev thiab pem teb. Txhawm rau ua kom muaj kev daws teeb meem, nws yog ib qho tsim nyog los ua ke nrog polystyrene nws tus kheej, xis mas thiab dej hauv lub pob zeb sib tov. Ua ntej tso qhov muaj pes tsawg leeg, nws yog ib qho tsim nyog yuav tsum tau ua kom huv huv ntawm qhov chaw. Nyob rau hauv cov txheej txheem ntawm kev ua hauj lwm, qhov ceev ntawm kev txiav txim muaj lub luag hauj lwm tshwj xeeb, txij li thaum cov tshuaj hardens yuav luag tam sim ntawd. Kev txhim kho ntawm cov hlau nplaum yog ua tiav yog tias qhov chaw ua haujlwm siab tshaj 50 hli los yog ua los ntawm cov khoom tsis muaj dej noo, cov ntaub pua plag, linoleum ntawm txhua yam thiab ntoo. Yog hais tias lub thickness ntawm lub saum npoo yog tsawg tshaj li 5 cm, ces qhov cuab lub zog yog xaiv tau. Thaum lub sij hawm installation, qhov kub thiab txias yuav tsum yog tsawg kawg yog 5 degrees.
Nyob zoo ib tsoom niam txiv kwv tij neej tsas sawv daws.
nthuav polystyrene ua npuas ncauj pellets muaj ntau yam zoo, ntawm cov hauv qab no tsim nyog sau cia:
- invariant form;
- kev nyab xeeb;
- siv tau yooj yim;
- nqi qis;
- qhov hnyav tsawg;
- tuaj yeem siv rau ntau yam kev tsim qauv;
- resistance rau Frost thiab hluav taws;
- extensive Scope;
- siab kub thiab suab rwb thaiv tsev.
Yuav Ua Li Cas Styrofoam
Pellets, tus nqi pib los ntawm 1600 rubles ib cubic meter, yog tsim raws li hauv qab no:
- Ntau yam lossis ib qho frothing. Cov ntsiab lus yog pub rau hauv lub pre-expander qhov twg lawv cov qauv nthuav thiab yuav siv sij hawm nyob rau hauv ib puag ncig zoo. Cov txheej txheem tuaj yeem ua tau ntau zaus hauv ib kab, kom txog rau thaum qhov yuav tsum tau muaj qhov ntom ntom.
- Kev laus yog qhov tsim nyog los tsim lub siab ruaj khov hauv cov kab noj hniav sab hauv ntawm cov khoom. Nws yuav siv sij hawm tsawg kawg 12 teev kom qhuav.
theem foaming muaj ob theem, thaum nws lub sijhawm dhau los raug xaiv rau txhua tus neeg, nyob ntawm qhov zoo ntawm cov khoom. Kev ua raws li txhua txoj cai yog qhov tseem ceeb, txij li yog tias lub sijhawm xav tau dhau mus, cov qauv pib tawg. Raws li tau hais ua ntej, nthuav dav polystyrene granules nkag mus rau hauv pre-expander, uas yog lub tank nrog lub qhov rau chav dej thiab cov cuab yeej siv rau kev sib xyaw cov khoom siv raw. Nyob rau hauv tus txheej txheem ntawm foaming, qhov kub mus txog 110 degrees. Nyob rau lub sijhawm no, pentane nyob rau hauv lub zog ntawm cov pa kub pab txhawb kev nthuav dav thiab softening ntawm cov khoom, qhov dav dav.lub ntim nce los ntawm 40-50 npaug, thaum tus qauv tseem zoo li qub.
Kev ntxhov siab yog siv los ua kom cov txheej txheem no nrawm dua. Tom qab ntawd cov hlwb raug tshem tawm hauv qhov siab thiab dhau mus rau hauv lub tank nruab nrab, uas lawv tau muab rau hauv lub tank kom qhuav.
Ntse
Cov khoom ua npuas ncauj muaj kwv yees li 10% ya raws. Vim lub fact tias lub condensation ntawm chav thiab pentane ua rau lub nqus tsev vacuum nyob rau hauv lub puab kab noj hniav, muaj peev xwm ntawm compression ntawm cov khoom, uas txo cov thermal rwb thaiv tsev yam ntxwv thiab txo tag nrho cov ntim. Yog li ntawd, kev laus yog ib qho tseem ceeb ntawm kev tsim khoom. Cov theem no ua kom cov normalization ntawm lub siab nyob rau hauv lub hlwb thiab ntxiv dag zog rau lub sab nrauv.
Qhov kev tiv thaiv yuav tsum tau ua tiav los ntawm kev raug cua sov nkag mus rau lub hlwb. Nyob rau tib lub sijhawm, nrog kev txo qis ntawm qhov ceev, tus nqi ntawm huab cua nqus tau nce.
Styrofoam granules qhuav hauv 5-10 feeb. Cov txheej txheem no tuaj yeem ua ke nrog kev thauj khoom. Kev kho tsis yog tsuas yog tau txais qhov xav tau ntawm cov av noo, tab sis kuj tseem muaj qhov nce ntawm cov dej ntawm polystyrene.
