nkhani

Poyerekeza ndi mankhwala ena pulasitiki extruded, ndi SUZHOU SUPXTECH kupanga otsika thovu khungu PVC mankhwala pulasitiki osati kumafuna plasticization wabwino pansi pa mavuto ena kusungunuka, komanso ndi lolingana luso amafuna kukula, kuchuluka ndi yunifolomu mabowo thovu, komanso makulidwe, kuuma, kuwala ndi kutha kwa khungu.Ubwino wa thovu thupi si zogwirizana chilinganizo ndi zopangira, komanso mwachindunji amakhudzidwa ndi zoletsedwa ndi kukameta ubweya ntchito extruder wononga, kusungunula kuthamanga, kutentha, extrusion (traction) liwiro, nkhungu milomo kusiyana, nkhungu kusiyana, kuzirala. kutentha kwa madzi ndi zinthu zina.Choncho, poyerekeza ndi zinthu zina extruded pulasitiki, khungu thovu pulasitiki mankhwala ali ndi vuto linalake luso, kuchokera mchitidwe ndi chiphunzitso pali mavuto ambiri osathetsedwa ofunika akatswiri makampani kuphunzira ndi kuthetsa.

1, khungu thovu PVC pulasitiki pepala luso kupanga ndi makhalidwe

Kuvuta kwaukadaulo popanga zinthu zapulasitiki za PVC zotulutsa thovu ndikuchita thovu.Kutulutsa thovu ndi chifukwa cha kuchuluka ndi kukulira kwa kusungunuka kwa viscosity, kupanikizika kwa gasi komwe kumapangidwa ndi thovu lotulutsa komanso kuthamanga kwamlengalenga.

Kutulutsa thovu nthawi zambiri kumadutsa magawo atatu:

(1) thovu mpweya ndi kusungunuka mu plasticized yunifolomu osakaniza Sungunulani pa kutentha ndi kuthamanga extruder ndi kufika machulukitsidwe boma kupanga kuwira pachimake;

(2) The kusungunula ndi extruded ku kufa, ndi kuthamanga kumasulidwa, supersaturated kusungunuka mpweya nucleates, amatambasula ndi precipitates, kupanga yunifolomu ndi wandiweyani kuwira mabowo mu kusiyana kwa formwork;

(3) Pansi pa kuziziritsa kwa chipangizo chojambula, zinthu zotulutsa thovu zimakhazikika ndikuwumbidwa.Wabwino khalidwe khungu thovu PVC mankhwala pulasitiki ndi makhalidwe a mabowo angapo ndi wandiweyani kuwira, yaing'ono ndi yunifolomu, kachulukidwe ndi makulidwe amakwaniritsa zofunika, maonekedwe yosalala, kuuma mkulu ndi kuwala.

2, khungu thovu PVC pulasitiki bolodi zinthu khalidwe

Waukulu zopangira kuti mwachindunji kapangidwe khalidwe la pulasitiki kuwira ndi thobvu wothandizira ndi thobvu harmonizer.Zopangira monga stabilizer, lubricant, calcium carbonate ndi extrusion process control zimatha kulimbikitsa ndikugwirizanitsa mtundu wa thovu pamlingo wina.Chifukwa kutentha kwa plasticization kusungunula mu ndondomeko extrusion ya zinthu thobvu ayenera pang'ono m'munsi kuposa kutentha kutentha kwa wochititsa thobvu, m'munsi pafupifupi digiri ya polymerization wa PVC utomoni, m'munsi kutentha processing chofunika Sungunulani plasticization.Kuti mupeze zinthu zapulasitiki zokhala ndi thovu, kukhuthala kwa utomoni sikuyenera kukhala kokwera kwambiri.Pa nthawi yomweyo, poyerekeza ndi mankhwala ena thovu, chifukwa mtanda gawo la pepala kupanga ndi okulirapo, kuchokera extrusion mutu mkamwa kufa kugawira m'lifupi mwa pafupifupi 1.3m, kuti atsogolere kubalalitsidwa ndi kukula kwa thovu. , kupanikizika kwa gawo lonse la mtanda la pepala liyenera kugwirizanitsidwa, madzi amadzimadzi asungunuke ndi apamwamba, ndipo kulemera kwa molekyulu ya utomoni nthawi zambiri kumakhala kochepa.Monga SC-7 kapena SC-8 kuyimitsidwa njira lotayirira utomoni ndi abwino kwambiri.Malingaliro a kampani SUZHOU SUPXTECH