Kugwira Ntchito Kumafunika Ndi Kugula Maluso a Polyurethane High and Low Pressure Foaming Machine

Makina opanga thovu a polyurethane ndi chida chapadera cha kulowetsedwa ndi thovu la thovu la polyurethane.Malingana ngati chigawo cha polyurethane chopangira (gawo la isocyanate ndi polyether polyol component) zizindikiro zogwira ntchito zimakwaniritsa zofunikira za fomula.yunifolomu ndi oyenerera thovu mankhwala akhoza kupangidwa kudzera polyurethane mkulu ndi otsika kuthamanga makina.Amapangidwa ndi pulasitiki ya thovu pogwiritsa ntchito thovu la polyether polyol ndi polyisocyanate pamaso pa zinthu zina zowonjezera zamankhwala monga thovu, chothandizira ndi emulsifier.

Njira zodzitetezera pakugwira ntchito kwamakina opangira thovu a polyurethane
1. Themakina opangira thovu a polyurethaneayenera kuvala magalasi odzitetezera, zovala zogwirira ntchito ndi zipewa zogwirira ntchito, ndi magolovesi amphira pogwiritsira ntchito zipangizo zophatikiza za polyurethane A ndi B.Malo ogwirira ntchito ayenera kukhala ndi mpweya wabwino komanso waukhondo.Pamene kutentha kozungulira kuli kwakukulu, chinthu chotulutsa thovu mu polyurethane A zinthu zidzasungunuka pang'ono ndi kupanga kupanikizika, kotero kuti chivundikiro cha utsi chiyenera kutsegulidwa choyamba kuti chitulutse mpweya, ndiyeno chivundikiro cha mbiya chiyenera kutsegulidwa.
2. Pamene makina opangira thovu a polyurethane ali ndi zofunikira zowonongeka kwa chithovu, makina opangira thovu a polyurethane amatha kugwiritsa ntchito zowonjezera lawi lamoto.Kuchuluka kowonjezera kwa chowotcha chamoto wamba ndi 15-20% ya kulemera kwa zinthu zoyera, ndipo chowotcha moto chimawonjezeredwa kuzinthu za polyurethane A.Iyenera kugwedezeka mofanana musanatulutse thovu.
3. Pa ntchito yotulutsa thovu ya makina opangira thovu a polyurethane, yezani molondola zida zamagulu a polyurethane A ndi B molingana ndikuzitsanulira mu chidebe nthawi yomweyo.Pambuyo poyambitsa masekondi 8 mpaka 10 ndi choyambitsa choposa 2000 rpm, tsanulirani mu nkhungu ndi thovu.Nthawi yochotsa zimadalira zomwe zimafunikira, makulidwe a thovu, etc.
4. Khungu likakumana ndi zinthu zopangidwa ndi polyurethane A, ziyenera kutsukidwa ndi sopo ndi madzi.Pamene polyurethane thovu makina ntchito polyurethane B zinthu (pali kupsa mtima kwina), musapume mpweya nthunzi yake ndipo musawaza pakhungu ndi maso.Zikafika pakhungu ndi maso, ziyenera kupukutidwa ndi thonje lachipatala nthawi yomweyo, kenako ndikutsuka ndi madzi ambiri kwa mphindi 15, ndikutsuka ndi sopo kapena mowa.

Kugula luso la polyurethane thovu makina
1. Kumvetsetsa bwino mtundu wa makina otulutsa thovu
Mfundo yaikulu ya makina opangira thovu a polyurethane ndikulowetsa gasi mu njira yamadzi yopangira thovu, koma mitundu yosiyanasiyana ya makina otulutsa thovu amatulutsa mpweya m'njira zosiyanasiyana.Mwachitsanzo, mtundu wothamanga wocheperako umadalira masamba ozungulira pang'onopang'ono kuti ayambitse mpweya, zomwe zimapangitsa kuti pakhale kutulutsa kochepa komanso kutulutsa thovu pang'ono;mtundu wothamanga kwambiri umadalira chiwongolero chothamanga kwambiri kuti chiwongole mpweya, kukula kwa thovu sikungathe kulamuliridwa, ndipo chithovu chimakhala chosagwirizana;mitundu yothamanga kwambiri komanso yapakati-yotsika imatulutsa thovu Kuthamanga kwambiri, kuthamanga kwambiri, yunifolomu ndi thovu laling'ono.
2. Basic magawo a polyurethane thovu makina:
1) Zokolola: Zokolola ndi kuchuluka kwa thovu lopangidwa, lomwe liyenera kukhala lokwera pang'ono kuposa kuchuluka kwa thovu lofunikira ndi 20%.Pofuna kusiya malo a chithovu chopangidwa, malire apansi ayenera kugwiritsidwa ntchito ngati maziko a kuwerengera ndi kuwerengera, ndipo malire apamwamba sangagwiritsidwe ntchito.
2) Kutha kwa makina opangira thovu a polyurethane: mphamvu yomwe idayikidwapo ndiyo mphamvu yonse yoyikidwa.Gawoli ndilofunika kwambiri powerengera kusinthasintha kwa dera lamagetsi kuti likhale ndi mphamvu zonse.
3) Kukula ndi mainchesi osiyanasiyana a polyurethane thovu makina.