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首頁(yè) > 技術(shù)文章 > 熔指儀的結構原理

熔指儀的結構原理

更新時(shí)間:2011-01-20

閱讀:2142

1、熔體流動(dòng)速率儀熔指儀是一種塑料擠出裝置,被測的熱塑性塑料放在儀器的料筒中。在規定的溫度下,用加熱爐使被測物達到熔融狀態(tài),并在規定的負荷下通過(guò)標準口模的小孔擠出,將擠出物折算為熔體每10分鐘通過(guò)標準口模的質(zhì)量流量MFR(ɡ/10min)來(lái)表示或將擠出物折算為熔體每10分鐘通過(guò)標準口模體積流量MVR(cm3/10min),用此數值表示被測物在熔融狀態(tài)下的流動(dòng)性、粘度等物理性能。
2、儀器由擠出系統、溫度測量顯示及溫度控制系統、位移測量及控制系統、試樣取出系統組成。
3、熔指儀擠出系統由以下主要零件組成:
料筒 、導向套、活塞、口模 、負荷 、托板 、爐體
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