The kuthira mutu udindo kulamulira limagwirira wamakina odzaza thovu othamanga kwambiriimaphatikizapo mutu wothira ndi manja oyikidwa kunja kwa mutu wothira.Silinda ya hydraulic vertical cylinder imakonzedwa pakati pa manja ndi mutu wothira.Thupi la silinda la vertical hydraulic cylinder limalumikizidwa ndi manja.Vavu Ndodo imalumikizidwa ndi mutu wothira.Nthawi yomweyo, pali njanji yowongolera pamakina otulutsa thovu a simenti, ndipo panjapa pali bowo lolowera lomwe limafanana ndi njanjiyo.Silinda yopingasa ya hydraulic cylinder imaperekedwa pakati pa makina otulutsa thovu othamanga kwambiri ndi manja.Thupi la silinda la silinda yopingasa ya hydraulic cylinder imalumikizidwa ndi thupi la makina otulutsa thovu othamanga kwambiri, ndipo tsinde la valve limalumikizidwa ndi manja.Chitsanzo chothandizira chimakhala ndi ubwino wopulumutsa ntchito komanso kupanga bwino kwambiri.

Zigawo ziwiri A ndi B zamakina opangira thovu a polyurethanezimayikidwa ndendende ndikugwedezeka pa liwiro lalikulu, ndipo zigawo ziwiri A ndi B zimaperekedwa kumutu wosakaniza ndi mapampu awiri olondola kwambiri.Pambuyo pakuthamanga kwambiri komanso mwamphamvu, madzi amadzimadzi amawapopera mofanana kuti apange mankhwala omwe akufuna.

Chomera chathunthu chotulutsa thovu cholimba kwambiri chimakhala ndi machitidwe awa: makina otaya zinthu, makina owerengera, makina ozungulira mpweya, makina otenthetsera, makina oyeretsa, zida zapadera za kulowetsedwa kwa thovu la polyurethane ndi thovu.Malingana ngati gawo la polyurethane laiwisi (isocyanate ndi polyether polyol components) likukumana ndi zizindikiro za ntchito ya mapangidwe.Amapangidwa ndi polyether polyol ndi polyisocyanate pamaso pa zinthu zotulutsa thovu, zopangira, zopangira ma emulsifiers ndi zina zowonjezera mankhwala, pambuyo pochita thovu ndi thovu.Pali mitundu itatu ya thovu mu makina mkulu-anzanu thobvu: chisanadze polima njira, theka-polima njira ndi sitepe imodzi thobvu chisanadze polima njira thobvu ndondomeko ndi kupanga chisanadze polima (zinthu zoyera) ndi (zakuda) choyamba, ndiyeno kuwonjezera madzi, chothandizira, surfactant, zina zina mu chisanadze polima wothira pansi mkulu-liwiro yoyambitsa thovu, pambuyo kuchiritsa pa kutentha zina akhoza okhwima.Njira yotulutsa thovu ya semi-prepolymer ndi kupanga gawo la polyether polyol (zinthu zoyera) ndi diisocyanate (zakuda) kukhala prepolymer poyamba, kenaka kuwonjezera gawo lina la polyether kapena polyester polyol ndi diisocyanate, madzi, chothandizira, surfactant. , zowonjezera zina, ndi zina zotero, ndi kuzisakaniza pansi pa liwiro lalikulu loyambitsa thovu.The polyether kapena poliyesitala polyol (yoyera) ndi polyisocyanate (wakuda), madzi, chothandizira, surfactant, kuwomba wothandizila, zina zina, etc. anawonjezera sitepe imodzi ndi kusakaniza pa liwiro la thovu.Njira imodzi yotulutsa thovu ndiyo njira yofala kwambiri masiku ano.Palinso njira yopangira thovu pamanja, yomwe ndi njira yosavuta kwambiri, pomwe zopangira zonse zimayesedwa molondola, zimayikidwa mumtsuko ndipo nthawi yomweyo zimasakanizidwa ndikubayidwa mu nkhungu kapena danga kuti mudzaze thovu.Chidziwitso: Polyisocyanate (wakuda) ayenera kuyezedwa pomaliza.

Themakina a thovu a polyurethanee zambiri thovu kutentha firiji, ndipo akamaumba ndondomeko yosavuta.Malinga ndi mulingo wamakina omanga, imatha kugawidwa kukhala thovu lamanja ndi thovu la makina;molingana ndi kukakamizidwa kwa thovu, imatha kugawidwa kukhala thovu locheperako komanso kutulutsa thovu;molingana ndi njira yopangira, imatha kugawidwa kukhala kuthira thovu ndi kupopera thovu.