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文章詳情
瓶胚高速注塑干燥系統(tǒng)
日期：2026-02-01 01:22
瀏覽次數(shù)：6
摘要：瓶胚高速注塑干燥系統(tǒng),PET干燥系統(tǒng),PET瓶胚.72腔瓶胚
瓶胚高速注塑干燥系統(tǒng),PET干燥系統(tǒng),PET瓶胚.72腔瓶胚
瓶胚高速注塑干燥系統(tǒng) 中英文雙語(yǔ)同步介紹
瓶胚高速注塑干燥系統(tǒng)是專為 PET 瓶胚高速注塑生產(chǎn)線設(shè)計(jì)的集成化聚酯干燥專用系統(tǒng)，是保障高腔數(shù)、高射速瓶胚注塑的核心前道工藝設(shè)備。
The drying system for high-speed preform injection moulding is an integrated special polyester drying system designed exclusively for high-speed PET preform injection production lines, and is the core front-end process equipment to ensure high-cavity, high-injection-speed preform injection moulding.
該系統(tǒng)以預(yù)結(jié)晶 + 深度低露點(diǎn)除濕干燥為核心，將 PET 切片含水率精準(zhǔn)降至 20ppm 以下的瓶胚注塑**值，徹底避免高溫注塑時(shí)的 PET 水解降解，同時(shí)適配高速注塑的連續(xù)化、高節(jié)拍、無(wú)間斷供料要求。
With pre-crystallization + deep low dew point dehumidification drying as the core, the system accurately reduces the moisture content of PET chips to below 20ppm, the safe value for preform injection moulding, completely avoids PET hydrolysis and degradation during high-temperature injection moulding, and at the same time meets the requirements of continuous, high-cycle, uninterrupted feeding for high-speed injection moulding.
系統(tǒng)針對(duì)瓶胚高速注塑（32/48/96/144/288/320 腔，單模周期 3~5s）的工藝特性做專項(xiàng)設(shè)計(jì)，相比常規(guī) PET 干燥系統(tǒng)，具備集成化程度高、控溫露點(diǎn)精準(zhǔn)、密閉防吸濕、與注塑機(jī)聯(lián)動(dòng)性強(qiáng)等特點(diǎn)，是食品、飲料、醫(yī)藥級(jí) PET 瓶胚量產(chǎn)的必備核心系統(tǒng)。
Designed specifically for the process characteristics of high-speed preform injection moulding (32/48/96/144/288/320 cavities, single mould cycle 3~5s), the system has the characteristics of high integration, precise temperature and dew point control, airtight moisture-proof, and strong interconnection with injection moulding machines compared with conventional PET drying systems, and is an essential core system for mass production of food, beverage and pharmaceutical grade PET preforms.
一、系統(tǒng)應(yīng)用核心必要性
瓶胚高速注塑對(duì) PET 切片的干燥品質(zhì)要求遠(yuǎn)高于常規(guī) PET 加工，高腔數(shù)、高射速的工藝特性會(huì)將干燥不達(dá)標(biāo)帶來(lái)的問(wèn)題無(wú)限放大，直接決定瓶胚成型品質(zhì)與生產(chǎn)線效率。
High-speed preform injection moulding has much higher requirements for the drying quality of PET chips than conventional PET processing, and the process characteristics of high cavity number and high injection speed will infinitely amplify the problems caused by substandard drying, which directly determines the preform forming quality and production line efficiency.
PET 為強(qiáng)吸濕性材料，若切片含水率＞20ppm，高溫注塑時(shí)會(huì)發(fā)生劇烈水解，導(dǎo)致瓶胚出現(xiàn)發(fā)白、霧斑、氣泡、縮痕等外觀缺陷，力學(xué)性能大幅下降，后續(xù)吹瓶易破裂、壁厚不均。
PET is a highly hygroscopic material; if the moisture content of the chips is ＞20ppm, severe hydrolysis will occur during high-temperature injection moulding, leading to appearance defects such as whitening, foggy spots, bubbles and shrinkage marks on the preforms, a sharp drop in mechanical properties, and easy cracking and uneven wall thickness in subsequent bottle blowing.
瓶胚高速注塑生產(chǎn)線為連續(xù)化運(yùn)行，單模周期僅 3~5s，若干燥系統(tǒng)供料中斷、切片干燥不均，會(huì)導(dǎo)致整線停機(jī)，288 腔生產(chǎn)線每停機(jī) 1 分鐘即損失超 2000 個(gè)瓶胚，產(chǎn)能損耗巨大。
The high-speed preform injection production line runs continuously with a single mould cycle of only 3~5s. If the feeding of the drying system is interrupted or the chip drying is uneven, the entire line will stop. A 288-cavity production line loses more than 2000 preforms per minute of downtime, resulting in huge capacity loss.
常規(guī) PET 干燥系統(tǒng)存在集成化低、露點(diǎn)波動(dòng)大、易二次吸濕等問(wèn)題，無(wú)法適配高速注塑的精準(zhǔn)控溫、連續(xù)供料、低露點(diǎn)穩(wěn)定要求，而專用的瓶胚高速注塑干燥系統(tǒng)為工藝量身設(shè)計(jì)，從根源上解決干燥痛點(diǎn)。
Conventional PET drying systems have problems such as low integration, large dew point fluctuations, and easy secondary moisture absorption, which cannot meet the requirements of precise temperature control, continuous feeding, and stable low dew point for high-speed injection moulding, while the special drying system for high-speed preform injection moulding is tailor-made for the process and solves the drying pain points from the root cause.
干燥系統(tǒng)與瓶胚注塑機(jī)、模具除露機(jī)共同構(gòu)成瓶胚高速注塑的核心工藝鏈，干燥品質(zhì)決定瓶胚基礎(chǔ)成型質(zhì)量，是后續(xù)除露、成型、脫模等環(huán)節(jié)的工藝基礎(chǔ)。
The drying system, together with the preform injection moulding machine and mould dehumidifier, forms the core process chain of high-speed preform injection moulding. The drying quality determines the basic forming quality of the preform and is the process basis for subsequent links such as dehumidification, forming and demoulding.
