Pali zinthu zambiri zomwe zimakhudza mtundu wa thovu la polyurethane.Kenako, tikambirana zinthu zisanu ndi ziwiri zazikulu zomwe zimakhudza ubwino wake.Ngati mumvetsetsa zinthu zazikuluzikulu zotsatirazi, mudzatha kuwongolera bwino kwambiri thovu la polyurethane kutsitsi.

1. Chikoka cha pamwamba ndi pamwamba pa maziko a khoma.

Ngati pali fumbi, mafuta, chinyezi ndi kusalinganika pamwamba pa khoma lakunja, zidzakhudza kwambiri kumamatira, kusungunula ndi flatness ya thovu la polyurethane kumalo otsekemera.Choncho, m'pofunika kuonetsetsa kuti khoma pamwamba ndi woyera ndi lathyathyathya pamaso kupopera mbewu mankhwalawa.

2. Chikoka cha chinyezi pa aerosol thovu.

Pamene chotulutsa thovu chimakonda kukhudzidwa ndi madzi, zomwe zimapangidwira zimawonjezeka, zomwe zimapangitsa kuti chithovu cha polyurethane chiwonjezeke ndipo chidzakhudza kwambiri kumamatira kwa thovu lolimba la polyurethane pamwamba pa khoma.Chifukwa chake, makoma akunja a nyumba amathiridwapo ndi thovu lolimba la polyurethane musanamangidwe, ndipo ndi bwino kutsuka utoto wosanjikiza wa polyurethane primer (ngati makomawo ali owuma m'chilimwe, sitepe ikhoza kupulumutsidwa).

3. Mphamvu ya mphepo.

Polyurethane thovu amachitidwa panja.Liwiro la mphepo likadutsa 5m/s, kutayika kwa kutentha mukuchita thovu kumakhala kwakukulu, kutayika kwa zinthu zopangira kumakhala kwakukulu, mtengo wake ukuwonjezeka, ndipo madontho a atomiki ndi osavuta kuwuluka ndi mphepo.Kuwonongeka kwa chilengedwe kumatha kuthetsedwa ndi makatani oletsa mphepo.

4. Mphamvu ya kutentha kozungulira ndi kutentha kwa khoma.

Kutentha koyenera kupopera thovu la polyurethane kuyenera kukhala 10 ° C-35 ° C, makamaka kutentha kwa khoma kumakhudza kwambiri pomanga.Pamene kutentha kuli kotsika kuposa 10, chithovu chimakhala chosavuta kuchotsa khoma ndi kuphulika, ndipo kuchuluka kwa chithovu kumawonjezeka kwambiri ndikuwononga zipangizo;pamene kutentha kuli pamwamba kuposa 35 ° C, kutayika kwa thovu kumakhala kwakukulu kwambiri, komwe kumakhudzanso kutulutsa thovu.

5.Kupaka makulidwe.

Mukapopera thovu lolimba la polyurethane, makulidwe a kupopera mbewu mankhwalawa amakhudzanso kwambiri mtundu ndi mtengo wake.Pamene polyurethane kupopera mbewu mankhwalawa kunja khoma kutchinjiriza kumanga, makulidwe a wosanjikiza kutchinjiriza si lalikulu, zambiri 2.03.5 cm, chifukwa kutchinjiriza wabwino wa polyurethane thovu.Panthawi imeneyi, makulidwe a kupopera sikuyenera kupitirira 1.0 cm.Onetsetsani kuti pamwamba pa zotsekera zopoperapo ndi zathyathyathya.Kutsetsereka kumatha kuwongoleredwa mumtundu wa 1.0-1.5 cm.Ngati makulidwe a aerosol ndi akulu kwambiri, kuchuluka kwake kumakhala kovuta kuwongolera.Ngati makulidwe a aerosol ndi ochepa kwambiri, kachulukidwe kagawo kakang'ono ka insulation kadzawonjezeka, kuwononga zida zopangira ndikuwonjezera ndalama.

6. Utsi mtunda ndi mbali mbali.

General zolimba thovu kupopera mbewu mankhwalawa ntchito nsanja ndi scaffolding kapena madengu atapachikidwa, kupeza zabwino thovu khalidwe, mfuti kukhala ndi ngodya inayake ndi kupopera mbewu mankhwalawa mtunda n'kofunikanso.Mbali yolondola ya mfuti yopopera nthawi zambiri imayendetsedwa pa 70-90, ndipo mtunda wapakati pa mfuti yopopera ndi chinthu chopoperacho uyenera kusungidwa mkati mwa 0.8-1.5m.Chifukwa chake, pomanga kupopera mbewu mankhwalawa polyurethane kuyenera kukhala ndi akatswiri odziwa ntchito yomanga kuti agwire ntchito yomanga, apo ayi zingakhudze mtundu ndikuwonjezera mtengo.

7.Interface mankhwala chinthu okhwima polyurethane thovu kutchinjiriza wosanjikiza.

Pambuyo kupopera mbewu mankhwalawa okhwima polyurethane thovu kwa makulidwe chofunika, ndi mawonekedwe mankhwala akhoza kuchitidwa pambuyo za 0,5h, mwachitsanzo burashi kutali polyurethane mawonekedwe wothandizira.Wothandizira mawonekedwe onse sayenera kugwiritsidwa ntchito mopitilira 4h (atha kupulumutsidwa ngati palibe kuwala kwa dzuwa).Izi ndichifukwa choti pambuyo pa 0,5h ya thovu, mphamvu ya chithovu cholimba cha polyurethane chimafika kupitilira 80% ya mphamvu zake zopambana komanso kusintha kwa kukula kwake ndi zosakwana 5%.Foam yolimba ya polyurethane ili kale m'malo okhazikika.ndipo ziyenera kutetezedwa mwamsanga.Plastering wa kusanjikiza wosanjikiza angathe kuchitidwa pambuyo polyurethane mawonekedwe wothandizira wagwiritsidwa ntchito kwa maola 24 ndipo potsiriza anaika.

Ndikofunika kumvetsera zinthu zomwe zimakhudza khalidwe la polyurethane spray thovu panthawi yomanga ndikuyesera kupewa kutaya kosafunikira.Makasitomala akulangizidwa kuti asankhe gulu la akatswiri omanga kuti awonetsetse kuti ntchitoyo ikupita patsogolo komanso kuti ntchitoyo ndi yabwino.