Momwe mungakulitsire ntchito yopangira ndi khalidwe la zinthu za extruder ya twin-screw

Momwe mungakulitsire kugwira ntchito bwino kwa #extruder ya twin-screw:

Kupititsa patsogolo magwiridwe antchito ndi chimodzi mwa zolinga zofunika kwambiri pakupanga, kupanga, ndi kupanga mtundu watsopano wa screw yozungulira iwiri. #chotulutsira zinthu mbali imodzi. Zingathenso kuchitika powonjezera liwiro la screw ndikuwongolera plasticization ndi mixing level. Pa liwiro lomwelo la screw, kukulitsa kuya kwa screw groove kungawonjezere kwambiri mphamvu yotumizira. Mosiyana ndi zimenezi, plasticization ndi mixing level ya screw iyeneranso kukulitsidwa, zomwe zimafuna kuti screw ikhale yolimba kwambiri.

Pa liwiro lalikulu la zomangira, nthawi yokhalamo kwa zinthuzo mu #chotulutsira zinthu yachepa, zomwe zingapangitse kuti zinthuzo zisungunuke ndi kusungunuka, ndipo kusakaniza sikukwanira. Chifukwa chake, kutalika kwa screw kuyenera kuwonjezeredwa moyenera, zomwe zimapangitsa kuti screw iwiri ikhale yolimba. #makina otulutsira zinthu kuti anyamule mphamvu ndi torque yowonjezera.

Kukulitsa voliyumu yaulere ya screw groove ndi chinthu chofunikira kwambiri. Mu gawo lodyetsera ndi gawo lowononga, ndikofunikira kwambiri kuti chinthu cholumikizidwacho chikhale ndi voliyumu yayikulu yaulere. Pazinthu zolemera kwambiri, kukulitsa voliyumu yaulere ya gawo lodyetsera ndi kuchuluka kwa kudzaza kwa zinthu zomwe zili mu screw groove kumatha kusintha kwambiri mphamvu yogwiritsira ntchito ya #extruder.

Kuti muwonjezere mphamvu ndi liwiro, bokosi logawa mphamvu liyenera kupangidwa mosamala. Kuti liwongolere kwambiri mphamvu ya zida, lidzapereka zofunikira zapamwamba pa kapangidwe ndi kapangidwe ka bokosi logawa mphamvu.

Momwe mungakulitsire khalidwe la chinthu cha #extruder chokhala ndi screw ziwiri:

Dongosolo lopangira pulasitiki limaphatikizapo screw ndi mbiya. Pofuna kukwaniritsa zofunikira za mitundu yosiyanasiyana ya kupanga ndi kukonza, screw ndi mbiya nthawi zambiri zimapangidwa ngati kapangidwe kophatikizana kwa block block. Malinga ndi ntchito ya gawo lililonse, screw ikhoza kugawidwa m'magawo odyetsera, gawo lopangira pulasitiki, gawo losakaniza, gawo lotulutsa utsi ndi gawo la #extrusion. Magawo awa ali ndi ntchito zosiyanasiyana mu njira ya #extrusion, kapangidwe kake sikofanana, ndipo magawo a geometric a zigawo za screw zomwe zikugwirizana nazo ndizosiyana. Chifukwa chake, momwe mungadziwire magawo a geometric a zigawo za ulusi kwakhala chinsinsi cha kapangidwe ka dongosolo lopangira pulasitiki.

Pogwiritsa ntchito ntchito yokonza zinthu zolimba ya magawo atatu ya pulogalamu yayikulu yothandizidwa ndi makompyuta (CAD), pulogalamu yokonza zinthu zamitundu iwiri imapangidwa kuti iwonetse bwino mawonekedwe olimba a magawo atatu a screw ziwiri, ndipo magawo a geometric amitundu yosiyanasiyana ndi mafotokozedwe a zinthu zodziyeretsa zokha amapezeka, ndipo maukonde a zomangira ziwirizo amawunikidwa.

Mothandizidwa ndi kompyuta, mawonekedwe olimba a screw awiri okhala ndi mipata atatu apangidwa, omwe angagwiritsidwe ntchito kuwona ngati mipata pakati pa screw ziwirizo ndi yofanana, kotero kuti zinthuzo sizili ndi malekezero ofooka pakuyenda kwa screw, ndiko kuti, kuonetsetsa kuti screw ili ndi mphamvu yodziyeretsa yokha, zomwe zingalepheretse bwino kuti zinthuzo zisakhale mu makina kwa nthawi yayitali komanso kuti zisawonongeke, zomwe mosakayikira zimapereka njira yabwino yopangira ndi kukonza zopangira ndi kupanga zinthu zapulasitiki zapamwamba komanso zapamwamba.