Chingwe Chotulutsira Mapaipi a HDPE Chothamanga Kwambiri Chopulumutsa Mphamvu

Kafukufuku waposachedwa wa kampani yathu komanso chitukuko cha mzere wopanga mphamvu wopulumutsa mphamvu mwachangu, woyenera kutulutsa chitoliro cha polyolefin mwachangu. Kusunga mphamvu kwa 35% komanso kuwonjezeka kwa magwiridwe antchito opanga kamodzi kokha. Kapangidwe ka screw ya 38-40 L/D yopangidwa mwapadera komanso mbiya yodyetsera zimapangitsa kuti kutulutsa ndi pulasitiki zisungunuke bwino kwambiri. Ma gearbox amphamvu kwambiri komanso amphamvu amatsimikizira kuti zida zikugwira ntchito bwino. Ma mold ndi manja a kukula kwa extrusion zimagwiritsa ntchito kapangidwe kapamwamba kwambiri. Tanki ya vacuum yosinthika ya PLC, thirakitala yoyendetsedwa ndi servo, ndi chodulira chopanda chip chothamanga kwambiri chili ndi makina owongolera kulemera kwa mita. Kulemera kwa extrusion ya chitoliro ndi kolondola kwambiri.

Chitoliro cha HDPE ndi chitoliro cha pulasitiki chosinthasintha chopangidwa ndi polyethylene yotsika kwambiri yomwe imagwiritsidwa ntchito kwambiri ponyamula madzi ndi mpweya wochepa kutentha. Posachedwapa, mapaipi a HDPE agwiritsidwa ntchito kwambiri ponyamula madzi akumwa, zinyalala zoopsa, mpweya wosiyanasiyana, matope, madzi amoto, madzi amvula, ndi zina zotero. Kugwirizana kwamphamvu kwa zinthu za chitoliro cha HDPE kumathandizira kuti chigwiritsidwe ntchito pa mapaipi amphamvu kwambiri. Mapaipi a polyethylene ali ndi mbiri yayitali komanso yodziwika bwino yogwirira ntchito pa gasi, mafuta, migodi, madzi, ndi mafakitale ena. Chifukwa cha kulemera kwake kochepa komanso kukana dzimbiri kwambiri, makampani a mapaipi a HDPE akukula kwambiri. Mu chaka cha 1953, Karl Ziegler ndi Erhard Holzkamp adapeza polyethene yotsika kwambiri (HDPE). Mapaipi a HDPE amatha kugwira ntchito mokwanira pa kutentha kwakukulu kuyambira -2200 F mpaka +1800 F. Komabe, kugwiritsa ntchito Mapaipi a HDPE sikulangizidwa pamene kutentha kwa madzi kukupitirira 1220 F (500 C).

Mapaipi a HDPE amapangidwa pogwiritsa ntchito polymerization ya ethylene, yomwe ndi mafuta opangidwa kuchokera ku mafuta. Zowonjezera zosiyanasiyana (zokhazikika, zodzaza, zopukutira, zofewetsa, zodzola, zopaka utoto, zoletsa malawi, zoyambitsa kuphulika, zolumikizirana, zowonjezera zowonongeka ndi ultraviolet, ndi zina zotero) zimawonjezedwa kuti apange chitoliro chomaliza cha HDPE ndi zigawo zake. Kutalika kwa chitoliro cha HDPE kumapangidwa potenthetsa utomoni wa HDPE. Kenako umatulutsidwa kudzera mu die, yomwe imatsimikiza kukula kwa payipi. Kukhuthala kwa khoma la Pipe kumatsimikiziridwa ndi kuphatikiza kwa kukula kwa die, liwiro la screw, ndi liwiro la thirakitala yonyamula. Nthawi zambiri, 3-5% yakuda kwa kaboni imawonjezeredwa ku HDPE kuti ikhale yolimba ku UV, zomwe zimapangitsa mapaipi a HDPE kukhala akuda. Mitundu ina yamitundu imapezeka koma nthawi zambiri siigwiritsidwa ntchito kawirikawiri. Chitoliro cha HDPE chokhala ndi utoto kapena mizere nthawi zambiri chimakhala chakuda cha 90-95%, pomwe mzere wamtundu umaperekedwa pa 5% yakunja.