定義
熱縮試驗(yàn)儀是用于測(cè)定熱收縮材料在液體介質(zhì)中受熱時(shí)尺寸變化率的專用檢測(cè)設(shè)備,通過(guò)精確控制溫度環(huán)境和浸漬時(shí)間,量化評(píng)估材料的熱收縮性能,為包裝材料的熱穩(wěn)定性提供科學(xué)依據(jù)。
測(cè)試原理
FST-01熱縮試驗(yàn)儀的工作原理基于加熱槽中載熱油的溫度控制。測(cè)試時(shí),首先裁取規(guī)定尺寸的試樣,然后將其浸入設(shè)定好溫度的加熱油中。經(jīng)過(guò)一定時(shí)間后,取出試樣并冷卻至室溫,隨后量取試樣的尺寸,通過(guò)計(jì)算得出熱收縮率。
技術(shù)參數(shù)
溫度范圍 室溫~200℃
控溫精度 ±0.3℃
試樣尺寸 160×160mm
符合標(biāo)準(zhǔn)
GB/T 13519-2016《聚乙烯熱收縮薄膜》
ASTM D2732-14《塑料薄膜自由收縮測(cè)試標(biāo)準(zhǔn)方法》
系統(tǒng)組成
核心模塊
不銹鋼加熱槽
試樣夾持網(wǎng)架
雙層保溫結(jié)構(gòu)
控制系統(tǒng)
微電腦控制器
自動(dòng)計(jì)時(shí)報(bào)警功能
應(yīng)用領(lǐng)域
醫(yī)藥包裝
輸液袋收縮膜熱穩(wěn)定性驗(yàn)證
藥品鋁箔復(fù)合膜熱收縮評(píng)估
泡罩包裝材料耐溫測(cè)試
食品包裝
PE熱縮膜工藝參數(shù)優(yōu)化
飲料集合包裝收縮率檢測(cè)
多層共擠膜熱性能研究
測(cè)試流程
試樣制備 → 初始尺寸測(cè)量 → 油浴浸漬 → 定時(shí)加熱 → 冷卻測(cè)量 → 數(shù)據(jù)計(jì)算
設(shè)備特點(diǎn)
精準(zhǔn)控溫:三組加熱棒+雙冗余溫度傳感器
安全防護(hù):液位報(bào)警+超溫自動(dòng)斷電
高效測(cè)試:?jiǎn)未螠y(cè)試周期≤15分鐘
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