Xim Polyurethane Tiv Thaiv Kev Xeb Uas Siv Dej Ua Haujlwm Qib Siab

* Cov Khoom Muaj pes tsawg leeg:

Cov xim polyurethane tiv thaiv xeb uas yog dej yog ob txheej txheej uas muaj cov tshuaj polyurethane resin uas los ntawm dej, cov xim tiv taus huab cua, ntau yam khoom ntxiv, thiab cov neeg sawv cev kho kom daj uas tiv taus dej, nws muaj kev ua tau zoo tiv thaiv xeb thiab zoo rau ib puag ncig. Cov khoom no muaj cov ntsiab lus VOC qis heev, uas ua tau raws li cov kev cai tiv thaiv ib puag ncig niaj hnub no thaum muab kev tiv thaiv zoo ib yam li cov tshuaj pleev ib txwm muaj.

* Cov yam ntxwv ntawm cov khoom:

● Siv dej ua cov tshuaj diluent, tsis muaj ntxhiab, tsis ua rau muaj kuab paug, tsis kub hnyiab thiab tsis tawg.

● Tiv thaiv kev daj, tiv thaiv huab cua zoo, ci ntsa iab zoo thiab khaws xim.

● Ci ntsa iab thiab zoo plumpness.

● Kev nplaum zoo heev, kev tawv tawv, kev tiv taus kev hnav zoo.

● Zoo heev tiv taus dej, roj, cov kuab tshuaj thiab tshuaj lom neeg.

● Zoo tiv taus cua sov thiab av noo thiab ntsev tsuag.

* Daim Ntawv Thov Khoom:

Cov xim polyurethane uas ntws los ntawm dej yog siv dav hauv cov xim pleev sab nraum zoov uas xav tau qhov zoo nkauj heev, xws li rau cov tshuab, cov thoob sib tov, cov choj, cov thoob cia khoom, cov thawv, cov nkoj, thiab tshwj xeeb tshaj yog cov tsheb. Lawv kuj tseem siv tau rau cov txheej yas, muab cov xim thiab cov txheej tiv thaiv rau cov khoom yas xws li cov khoom siv hluav taws xob, cov khoom ua si, thiab cov khoom siv hauv tsev.

* Cov ntaub ntawv kev siv:

* Kev Kho Mob Nto:

Yuav kom ntseeg tau tias zaj duab xis lo rau thiab tiv thaiv kev xeb mus sij hawm ntev, qhov chaw ntawm cov khoom siv yuav tsum tau ntxuav kom huv si kom tsis txhob muaj roj, xeb, nplai, xim qub, thiab cov khoom tsis huv ua ntej siv. Cov qauv kev npaj yuav tsum ua tau raws li cov hauv qab no.:

Txhua qhov chaw uas yuav pleev xim yuav tsum huv, qhuav thiab tsis muaj kuab paug. Ua ntej pleev xim, txhua qhov chaw yuav tsum ua raws li ISO_{8504: 2000}kev ntsuam xyuas thiab kev ua tiav tus qauv.

Cov hlau scaled raug blasted rau Sa_2.5qib, qhov roughness ntawm qhov chaw yog 30-75μm, lossis pickled, neutralized thiab passivated;

Cov hlau tsis muaj oxide blasted rau Sa_2.5qib, lossis txhuam rau St₃qib nrog lub log sib tsoo pneumatic lossis hluav taws xob elastic;

Cov hlau uas tau coated nrog cov xim pleev xim rau hauv chaw ua haujlwm yuav tsum tau muab tshem tawm cov xeb ob zaug, cov xeb dawb raug tshem tawm thiab txhuam kom txog thaum cov xim pleev xim puas lawm, cov xeb dawb thiab cov xeb dawb ntawm cov zinc hmoov primer yuav tsum tau muab tshem tawm.₃.

Lwm cov nto Cov khoom no yog siv rau lwm cov substrates, thov sab laj nrog peb lub chaw haujlwm kev tshaj lij.

Qhov chaw kho yuav tsum huv, qhuav, tsis muaj roj, tsis muaj plua plav, thiab pleev xim tsis pub dhau 6 teev tom qab xuab zeb kom tiv thaiv xeb ntawm qhov chaw.

* Kev Tsim Kho:

Qhov kub ntawm lub substrate tsis qis dua 5 ℃, thiab tsawg kawg 3 ℃ siab dua qhov kub ntawm cov dej noo thiab qhov av noo yog <85% (qhov kub thiab av noo yuav tsum ntsuas ze ntawm lub substrate). Kev tsim kho raug txwv tsis pub ua thaum muaj pos huab, daus thiab cua hlob.

* Kev Tsim Kho:

Qhov kub ntawm lub substrate tsis qis dua 5 ℃, thiab tsawg kawg 3 ℃ siab dua qhov kub ntawm cov dej noo thiab qhov av noo yog <85% (qhov kub thiab av noo yuav tsum ntsuas ze ntawm lub substrate). Kev tsim kho raug txwv tsis pub ua thaum muaj pos huab, daus thiab cua hlob.

*Cov Kauj Ruam Tsim Kho:

Kauj Ruam 1: Kev Npaj Qhov Nto Ntawm Cov Khoom Siv (TusTus yuam sijKauj Ruam)

Qhov zoo ntawm kev npaj nto ncaj qha txiav txim siab qhov lo thiab lub neej ntawm cov xim pleev xim.

Cov nplaim hlau yuav tsum tau tshem cov roj tawm thiab tsis muaj xeb (rau Sa2.5 lossis St3 tus qauv) kom ntseeg tau tias cov nplaim hlau uas yuav pleev xim yuav tsum huv si, qhuav tag, thiab tsis muaj cov kuab paug xws li roj, roj, hmoov av, ntsev, nplai, thiab cov xim qub xoob. Tsis pub pom cov dej noo lossis cov dej noo.

Qhov chaw kho yuav tsum ua tau raws li tus qauv kev huv thiab qhov ntxhib, thiab yuav tsum pleev xim sai li sai tau kom tiv thaiv xeb rov qab los yog muaj kuab paug thib ob.

Kauj Ruam 2: Siv Primer

Yuav kom ntseeg tau tias muaj kev tiv thaiv xeb zoo dua, xav kom siv 1 txheej tiv thaiv xeb primer, nws tuaj yeem txhim kho kev nplaum rau lub substrate thiab muaj cov khoom tiv thaiv xeb zoo heev.

Kauj Ruam 3: Siv Xim Polyurethane Uas Muaj Dej

Tom qab qhib lub thoob, do kom sib npaug nrog lub tshuab hluav taws xob kom txog thaum cov xim thiab viscosity sib xws, maj mam nchuav cov khoom B (tus neeg sawv cev curing) rau hauv cov khoom A (xim), kom huv si raws li qhov sib piv teev tseg (los ntawm qhov hnyav). Tom qab do kom tag, cia cov khoom sib tov sawv rau 5-10 feeb kom tiav. thiab cov txheej sib xyaw siv tawm hauv 4 teev (lub neej lauj kaub). Tom qab ntawd txhuam / dov lossis tsuag, Airless spraying muab qhov ua tau zoo tshaj plaws thiab tsim cov xim zoo tshaj plaws. Yog tias koj muaj cov khoom siv thiab cov txheej txheem tshaj lij, nws yuav zoo tshaj plaws. Kev siv xim theoretical yog 0.2kg / m² / txheej. (Kev siv tiag tiag yuav txawv nyob ntawm qhov zoo ntawm qhov chaw, porosity, txoj kev siv thiab cov txheej txheem ua haujlwm.)

*Yog tias xav tau kev ua kom nyias nyias, muab dej deionized ntxiv rau raws li qhov viscosity thiab txoj kev siv (txhuam, dov, lossis txau). Kho qhov viscosity kom haum rau txoj kev siv.

* Qhov sib piv ntawm kev sib xyaw ntawm 5-20% los ntawm qhov hnyav. Kev ua kom nyias dhau yuav cuam tshuam tsis zoo rau kev tsim cov zaj duab xis, lub zog zais, thiab kev ruaj khov mus sij hawm ntev.

* Ua ntej siv txheej tom ntej, xyuas kom meej tias txheej dhau los tau kho tag nrho, huv si, qhuav, thiab tsis muaj txhua yam kab mob.

* Tsis txhob do hnyav heev kom tiv thaiv kom tsis txhob muaj npuas ntau dhau.

* Rov txheej dua lub sijhawm: Hauv qhov chaw muaj xeb me ntsis: 1 txheej ntawm primer +2 txheej xim nruab nrab + 2 txheej ntawm topcoat; nyob rau hauv cov chaw muaj xeb hnyav, nce qhov tuab ntawm txheej.

*Txoj Kev Tsim Kho:

Tshuaj tsuag: Tshuaj tsuag tsis siv cua lossis tshuaj tsuag los ntawm huab cua. Nws raug nquahu kom siv cov tshuaj tsuag tsis siv cua siab.

Txhuam/Dov: Yuav tsum ua tiav qhov tuab ntawm zaj duab xis qhuav uas tau teev tseg.

*Cov kev ceev faj:

▶ Qhov kub ntawm kev tsim kho yog 5 ℃ -35 ℃ (Kev hloov kho tshwj xeeb yog ua raws li cov yam ntxwv ntawm cov khoom, qhov av noo yog ≤80%.

▶ Ua kom muaj cua nkag tau zoo kom cov dej noo noo thiab cov xim pleev xim qhuav.

▶ Tiv thaiv kom tsis txhob khov thaum lub sijhawm khaws cia.

▶ Yuav tsum hnav cov khoom siv tiv thaiv thaum lub sijhawm xuab zeb

▶ Tsis pub ua vaj tse vim pos huab, nag, daus, cua thiab nag.

* Kev Cia Khoom thiab Lub Neej Tus Kheej:

▅ Khaws cia rau hauv qhov chaw txias, qhuav, thiab muaj cua nkag tau rau hauv tsev rau khoom ntawm qhov kub ntawm 5-35 ℃, tsis txhob cia khov thiab tshav ntuj ncaj qha;

▅ Lub neej ntawm cov khoom siv yog 12 lub hlis. Yog tias cov khoom uas khaws cia ntev tshaj lub sijhawm khaws cia, ces siv tau tom qab dhau qhov kev tshuaj xyuas.

*Pob khoom:

Xim: 20kg / thoob, Hardener / curing tus neeg sawv cev: 4Kg / thoob lossis kho kom haum