Inona no maha samy hafa ny PET preform milina tsindrona koronosy sy ny mahazatra tsindrona milina?

A professional PET preform tsindrona koronosy milina differs fundamentally from a general-purpose standard injection molding machine, satria namboarina manokana hifanaraka amin'ny toetra ara-batana sy simika manokana amin'ny resin'ny PET, izay tsy zakan'ny milina tsotra. Ny fitaovana PET dia manasongadina hamandoana avo lenta, fahapotehana mafana saro-pady, viscosity mitsonika ambany, ary fepetra hentitra ho an'ny fitovian'ny plasticization sy ny hafainganam-pandeha, all of which demand specialized machine configurations. First and foremost, the plasticizing system is completely different. PET preform machines are equipped with a dedicated low-shear screw and barrel with a length-to-diameter ratio of 24:1 ny 26:1, featuring shallow screw grooves and no dead-angle design. This structure avoids excessive shearing force that causes PET molecular chain breakage, effectively preventing melt yellowing, carbonization, and transparency reduction during high-temperature processing. Mifanohitra, standard injection machine screws are designed for universal plastics like PP and ABS, generating excessive shear heat that easily degrades PET materials and produces defective preforms with yellow streaks and haze. Faharoa, the temperature control system of PET preform milina supports multi-stage precise PID constant temperature control, covering the barrel, nozzle, and mold adapter with a temperature error controlled within ±1°C. Since PET processing temperature ranges from 260°C to 285°C, even minor local overheating will trigger acetaldehyde proliferation and material aging, a problem that ordinary machines with rough temperature control cannot avoid. Ary, Ny famokarana preform PET dia mitaky famenoana rindrina manify haingam-pandeha sy fametahana henjana avo lenta mba hiantohana ny fanakatonana bobongolo fanamiana ary hisorohana ny tselatra amin'ny preforms marobe.. Masinina preform matihanina dia mampiasa maodely mafy orina sy rafitra fanindroany haingana, fanatontosana famenoana haingam-pandeha marin-toerana ao anatiny 0.1 segondra, fa ny milina mahazatra dia manana valiny tsindrona miadana ary tsy ampy ny henjana clamping, mitarika ho amin`ny uneven preform hatevin`ny rindrina sy ambany vokatra. Fanampin'izany, Ny milina PET voatokana dia natao ho an'ny fotoana fohy hipetrahana, miaraka amin'ny fantsona mikoriana mirindra sy rafitra nozzle anti-stagnation mba hampihenana ny fihazonana sy ny fahasimbana. Izy ireo koa dia mitahiry interface tsara ho an'ny fitaovana fanohanana toy ny fanamainana fanamainana sy ny chiller indostrialy, mamorona rafitra famokarana feno molding PET. Standard injection machines lack these targeted optimizations, resulting in low production efficiency, high defective rates, and inability to meet food-grade preform production standards. Raha fintinina, ordinary injection machines can only complete simple plastic molding, while professional PET preform machines focus on high transparency, low acetaldehyde, high yield, and high-speed mass production, fully matching the strict process requirements of PET preform famokarana.