Momwe Mungayeretsere Moyenera Zida za Foam Polyurethane

Kuyeretsa kolondola sikungotsimikizira kuti zidazo zimagwira ntchito bwino, komanso zimatalikitsa moyo wautumiki wa zida zotulutsa thovu.Choncho, ziribe kanthu momwe mungawonere, ndikofunika kwambiri kuyeretsa zipangizo za polyurethane thovu molondola.

Chofunikira pakukonza zida za thovu la polyurethane ndikuyeretsa.Poyeretsa zida, samalani mfundo izi:

1.Zida za polyurethanechitoliro chotenthetsera:

Mukamaliza kupopera mbewu mankhwalawa, dinani batani lotulutsa (PARK), ndiyeno womberani mfutiyo kuti mutulutse mphamvuyo pafupifupi 500-700psi.Kuchepetsa kupsinjika kumatha kuyimitsidwa.Chifukwa chitoliro chikakhala ndi mphamvu inayake, chinyontho cha mumlengalenga sichidzalowa mosavuta mu chitoliro, chomwe chimatsimikizira kuti zipangizo sizidzakhudzidwa ndi mpweya wonyowa, ndipo zinthu za A sizidzawonongeka kapena kusungunuka mu chitoliro. ;amathandiza kwambiri.

2. Zinthu Pampu yopopera yazida za polyurethane:

Mukamaliza kugwiritsa ntchito, yeretsani mawonekedwe ake ndi woyeretsa, ndikuyiyika m'bokosi lodzitchinjiriza lomwe lili ndi choyeretsa kuti injini yayikulu isindikize, kuti mupewe zigawo zochepa za isocyanate kuti zisachite ndi chinyezi mumlengalenga, chakudya Kuthamanga kumachepetsa, chiŵerengero cha kupopera sichikuyenda bwino, ndipo pampu yofananira ilibe kanthu.

3. Kuyeretsa kwazida za polyurethane:

Ngati nthawi yapakati pa kutha kwa ntchito yomangayi ndi yomanganso ikupitirira masiku oposa 30, dongosolo lonse la A liyenera kutsukidwa bwino ndi kusindikizidwa.

4.Zida zopangira thovu la polyurethane(makina otulutsa thovu) silinda yofananira:

Pantchito yabwinobwino ya makina a thovu a polyurethane, tcherani khutu ku njira yodzitchinjiriza ya silinda yazinthu ya A, kaya madzi oyeretsera ozungulira akuyenda bwino, kaya madzi oyeretsera akhala avumbi, owoneka bwino, etc., ngati pali vuto. kufalitsidwa, fufuzani ngati kuyeretsa madzi chitoliro chatsekedwa, kapena onani ngati pali crystallization mu zinthu yamphamvu A;ngati madzi ozungulira ndi otayirira komanso owoneka bwino, amafunika kusinthidwa munthawi yake.