詳細介紹
無粘性土休止角測試儀
型號:ZK11986
一、定義:
休止角是指粉體堆積層的自由斜面在靜止的平衡狀態(tài)下,與水平面所形成的角
二、工作原理:
休止角常用的方法是固定圓錐法(亦稱殘留圓錐法)。固定圓錐法將粉體注入到某一有限直徑的圓盤中心上,直到粉體堆積層斜邊的物料沿圓盤邊緣自動流出為止,停止注入,測定休止角。
三、特點:
測試粉末和顆粒通過進料漏斗后再流入到測試漏斗中再自動流出堆積,解決粉末和顆粒因加料時產品本身重力和內摩擦對粉末和顆粒自然流出之影響,得出數據更加真實反映產品本身的特性。
粉體的休止角 < 30o 30o~45o 45o~60o 60o~90o
流動性表示: 良好 較好 較差 差
休止角評價粉體的流動性能,只能表示流動性的好壞,或者用于比較同種粉體因水分和粒度等引起的流動性差別。
四、標準:
GB11986-89 ISO4324-1977 USP(美國藥典)、BP (英國藥典)和EP(歐洲藥典) DIN ISO 4324 - December 1983;
粉末和顆粒休止角測定儀不僅可以直接測定,而且可以測定粉體層的高度和圓盤半徑后計算而得。即tanθ=高度/半徑。休止角是檢驗粉體流動性好壞的的方法。
五、適用范圍:
粉末和顆粒休止角測定儀廣泛用于制藥、工業(yè)化學、洗滌、科研院校、質檢機構等等相關粉末粉體及顆粒材料之檢測;可以提供粉體儲藏性質的變化,特別是在料倉中儲存情況等。
六、技術參數
1.圓盤: 直徑100mm
2.漏斗: 漏斗頸內徑10mm
Beijing Zhongke micro-nano Precision Instrument Co. , Ltd. is a Science and Technology R & D Enterprise registered in Yanqing District Science and Technology Park, Beijing. It has an independent R & D and design team, and cooperates with a number of key laboratories and enterprises in China, to provide technical support and development cooperation, the company has developed a series of testing instruments, mainly covering the fields of powder testing, carbon graphite material testing, battery testing instruments, pre-baked anode and electrode paste testing.
Beijing Zhongke micro-nano Precision Instrument Co. , Ltd. is a Science and Technology R & D Enterprise registered in Yanqing District Science and Technology Park, Beijing. It has an independent R & D and design team, and cooperates with a number of key laboratories and enterprises in China, to provide technical support and development cooperation, the company has developed a series of testing instruments, mainly covering the fields of powder testing, carbon graphite material testing, battery testing instruments, pre-baked anode and electrode paste testing.
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