2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2024-01-15 04:12
Lub foob yog cov khoom siv los txhawm rau txhawm rau tawg thiab kaw lawv. Txhawm rau xaiv qhov raug ntawm cov tshuaj hermetic, nws yog qhov tsim nyog los txheeb xyuas qhov tseeb nws yuav siv rau qhov twg.
Feem ntau, cov foob tuaj yeem muab faib ua silicone, acrylic thiab polyurethane . Hom twg los siv hauv txhua rooj plaub tshwj xeeb yog nyob ntawm ntau yam, xws li kev hloov pauv ntawm qhov kub, qhov cuam tshuam sab nraud, kev sib haum nrog cov khoom siv saum npoo av, thiab lwm yam. Peb yuav saib silicone sealants.
Saib
Vim nws txoj kev ywj pheej, silicone tsis tuaj yeem pleev xim nrog cov xim thiab cov kua roj vanish, tab sis qhov no tau them nyiaj los ntawm qhov sib txawv ntawm cov xim. Muaj cov pob tshab, xim dub thiab xim xim silicone.
Sealants tuaj yeem faib ua ob pawg
Ib-feem formulations tsis xav tau kev nqis tes ua ntxiv. Lawv tau npaj txhij siv tas, yog li lawv tau siv dav hauv lub neej txhua hnub.
Ob-tivthaiv foob suav nrog lub hauv paus thiab cov tawv tawv nyob hauv cov nkoj sib txawv. Lawv muab cov tshuaj tiv thaiv tsuas yog los ntawm kev sib xyaw. Lawv tau siv feem ntau hauv kev lag luam.
Ib qho ntawm cov khoom siv ib leeg yog silicone. Nws tuaj yeem yog acetate lossis nruab nrab.
Hauv thawj kis, cov khoom muaj acetic acid, thiab hauv ob, cawv . Vim li no, acetate sealant yuav tsum tsis txhob siv hlau, pob zeb thiab pob zeb ua ke, vim cov kua qaub tuaj yeem muaj qhov tsis zoo rau lawv. Ib lub foob foob nruab nrab daws cov teeb meem no yooj yim.
Cov yam ntxwv tseem ceeb
Vim nws cov tshuaj inertness, nruab nrab silicone sealant tuaj yeem siv rau ntau yam kev thov. Nws cuam tshuam zoo nrog cov hlau thiab iav, tau siv ntawm cov pob qij txha ntawm cov pob zeb ua vaj tsev thiab cov cement, thiab tau siv hauv kev tsim nkoj thiab kev tsav dav hlau.
Dub silicone sealant yog cov cuab yeej siv tsis tau rau kev ua haujlwm nrog tsheb. Qhov dav ntawm nws daim ntawv thov nyob rau hauv cov lus qhia no yog dav txaus.
Cov muaj pes tsawg leeg yog tsis muaj dej, tiv tau zoo ntau yam dej hauv tsheb.
Tsuas yog kev zam tsuas yog roj av, nws kev sib cuag nrog cov nplaim kho tuaj yeem cuam tshuam tsis zoo rau cov khoom ntawm cov khoom.
Hom foob no tuaj yeem tiv taus lub sijhawm luv rau qhov kub siab, uas tuaj yeem ncav cuag 300 degrees. Thaum ua ntawv thov, nws tsis ntws, nws yog tus yam ntxwv ntawm kev ntseeg tau thiab ruaj khov thaum ua haujlwm.
Yuav xaiv li cas?
Cov kws tshaj lij hais tias qhov zoo ntawm lub foob foob ncaj qha nyob ntawm qhov muaj pes tsawg ntawm silicone hauv nws cov muaj pes tsawg leeg. Ib puas feem pua cov khoom siv silicone yog suav tias yog qhov zoo tshaj plaws. Nws tsis thim, muaj lub neej ua haujlwm ntev thiab ua tau zoo tiv taus cov kev nyuab siab. Qhov tsis zoo ntawm cov khoom no yog nws tus nqi siab dua.
Kev qhia txog cov tshuaj ntxiv rau hauv cov tshuaj silicone sealant tuaj yeem txo nws cov khoom siv hermetic ., yog li ntawd, nws tsim nyog xaiv qhov sib xyaw nrog qhov tsawg kawg nkaus ntawm cov khoom ntxiv. Koj tuaj yeem txiav txim siab qhov nyiaj ntxiv ntawm qhov hnyav ntawm cov khoom. Ib lub pob silicone ntshiab 85 g yuav tsum tsis hnyav ntau dua 95 g.
Nws kuj tseem yuav tsis muaj txiaj ntsig los txiav txim siab seb puas muaj cov kuab tshuaj tau ntxiv rau qhov muaj pes tsawg leeg. Qhov no tau tshwm sim los ntawm kev siv silicone rau polyethylene. Yog tias qhov sib xyaw ua kom huv, cov nplaim hauv qab nws yuav tsis ntsws thiab ua paug.
Nta ntawm kev ua haujlwm
Ua haujlwm nrog cov nplaum silicone dub tsis ua teeb meem tshwj xeeb:
kom yooj yim thov daim ntawv lo, koj yuav tsum siv rab phom tshwj xeeb
- tom qab qhib lub pob, lub dispenser tau muab tso rau ntawm qhov chaw deb ntawm lub qhov taub, uas yuav tsum tau txiav tawm, nyob ntawm qhov xav tau ntim ntim khoom ntawm cov khoom;
- av thiab hmoov av yuav tsum tau muab tshem tawm ntawm qhov chaw, kho nrog lub foob, thiab tseem ua kom qhuav;
- cov silicone ntau dhau yuav tsum tau muab tshem tawm ntawm txheej ua ntej nws tawv, tom qab uas nws tsuas yog tuaj yeem ua kom huv nws lub tshuab.
Nta thiab txheej txheem cej luam
Ib qho ntawm cov khoom siv silicone nrov tshaj plaws yog Sikasil SG-20. Nws yog siv los kho thiab ntim khoom thaum ua haujlwm tsim kho.
Sikasil SG-20 sealant yog siv los txhawm rau kho lub ntsej muag lub ntsej muag, txhaws pob qij txha thiab tawg. Nws tau ua pov thawj nws tus kheej los ua ib qho muaj txiaj ntsig zoo rau kev tsim kho qhov rai thiab txheej txheej iav.
Cov khoom tau ntim rau hauv 310 thiab 600 ml ntim, nrog rau 20 thiab 200 litres. Nws tau npaj los siv, tsis muaj cov kuab tshuaj, thiab ua haujlwm tsis thim. Qhov ntsuas kub thaum ua haujlwm yuav tsum yog los ntawm 5 txog 40 degrees siab dua xoom.
Sikasil SG-20 kua nplaum sib cuam tshuam tau zoo nrog yuav luag txhua hom nto , tshwj xeeb los ntawm kev tiv thaiv ya raws thiab tiv taus huab cua tsis zoo. Thaum lub sijhawm thov, lub foob tsis poob, nws ruaj, tiv taus cov duab hluav taws xob ultraviolet zoo thiab muaj cov tshuaj tiv thaiv xeb.
Lwm lub npe nrov yog Abro Black Silicone Sealant tsim los kho cov gaskets hauv tsheb cav. Nws tiv taus qhov cuam tshuam ntawm cov dej hauv lub tsheb tshwj xeeb, tshwj tsis yog roj av. Nws tuaj yeem siv los ua haujlwm ntawm lub twj tso kua dej, lub hau npog thiab lub yias sib kis.
Qhov ntsuas kub kub tuaj yeem tiv taus qhov kub txog li +340 degrees, muaj cov tshuaj tiv thaiv xeb thiab tsis muaj ntxhiab tsw.
Permatex Dub Silicone Adhesive Sealant muaj cov roj hmab hluavtaws uas pab tiv kom kub poob los ntawm -60 txog +260 degrees, tsis qhuav lossis tawg thaum siv. Cov nplaim kho yog ywj, tab sis tib lub sijhawm nws nruj.
Cov khoom siv no tuaj yeem siv rau ob qho tib si ntsug thiab kab rov tav . Nws yog dej tsis haum thiab tsis muaj tshuaj lom. Cov nplaum nplaum ua tau zoo rau ntau yam ntawm cov substrates xws li iav, ntoo, tej hub thiab cov hlau, plastics thiab lwm yam. Ua kom tiav solidification yog nqa tawm hauv ib hnub. Lub foob yuav tiv taus kev sib cuag nrog cov kua hauv tsheb.
Pom zoo:
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