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FT-104B系列休止角测定仪
FT-104B Series angle of repose meter
一.定义Definition：
休止角是指粉体堆积层的自由斜面在静止的平衡状态下，与水平面所形成的角
the angle of repose is the maximum angle formed between the free slope of the powder accumulation under static equilibrium state and horizontal plane.
二.工作原理principle：
休止角常用的方法是固定圆锥法（亦称残留圆锥法）。固定圆锥法将粉体注入到某一有限直径的圆盘中心上，直到粉体堆积层斜边的物料沿圆盘边缘自动流出为止，停止注入，测定休止角。
the usual method of angle of repose is to fix the cone method (also called residual conic method).Fixed cone method : inject powder to the center of disc with limited diameter, until the hypotenuse powder accumulation of material automatically flow along the edge of disk, stop injection, measure angle of repose.
三.特点Characteristics：
测试粉末和颗粒通过漏斗的时间和形成的角度，测试前进行预堆积，从而已知样品量，将已知质量粉末从漏斗流出而形成的堆积角，以及流出所需要的时间；可以获得休止角和流速数据。
test time and angel of powder and particle pass through the funnel , preaccumulate before testing, so as to determine the sample weight, the known mass powder flowed from the funnel and form the accumulation of Angle, and the time it takes to outflow;You can obtain the angle of repose and the flow rate data.
粉体的休止角 angle of repose of powder | < 30º | 30º~45º | 45º~60º | 60º~90º |
流动性表示 Flow performance | 良好 better | 较好 good | 较差 worse | 差 poor |
用休止角评价粉体的流动性能，只能表示流动性的好坏，或者用于比较同种粉体因水分和粒度等引起的流动性差别。
With the Angle of repose evaluation flow properties of powders, can only say the stａnd or fall of liquidity, or used to compare the same powder liquidity difference caused by moisture and particle size, etc.
参照GB11986-89《表面活性剂 粉体和颗粒休止角的测定》
It was designed and manufacured According to GB11986-89 "determination of surfactant powder and particle angle of repose "
ISO4324-1977要求；粉体和颗粒休止角的测定，
ISO4324-1977 requirement; The determination of the Angle of repose t for powder and particle
参照USP（美国药典）、BP （英国药典）和EP（欧洲药典）：DIN ISO 4324 - December 1983
It also Applies to USP (the United States pharmacopoeia), BP (British pharmacopoeia) and EP (European pharmacopoeia) specification requirements of the reference standard: DIN, ISO 4324 - December 1983.
四.适用范围scope of application：
用于制药、工业化学、洗涤、科研院校、质检机构等等相关粉末粉体及颗粒材料之检测；可以提供粉体储藏性质的变化在料仓中储存情况等。
They are widely used in pharmaceutical, chemical industry, washing, scientific research institutions, quality inspection institutions, and so on related detection of powder and granular materials;Changes in the properties of the powders can be provided, especially in the silo Storage conditions etc.
五.型号及技术参数Model and technical parameters：
功能项目 functional item | FT-104B | FT-104B2 |
1.透明 圆盘Transparent Disc: | 直径diameter 100mm | |
2. 漏斗尺寸 ：Funnel Dimension : | 约外径155mm内径145mm outer diameter 155mm, inner diameter 145mm. | |
漏斗数量 funnel numbers | 1个测试漏斗 1pcs testing funnel | 2个（进料漏斗和测试漏斗各1个） 2pcs (each one feed funnel and test funnel) |
搅拌装置 stirring apparatus | 有 include | 无 Not include |
高度刻度 height scale
| 基板起带有0-100mm的刻度尺用于测量锥体高度the base plate is provided with a scale of 0-100mm to measure the height of the cone.
| |
6. 漏斗颈内径funnel neck inner diameter | 10mm | |
漏斗总高度： Funnel height: | 141mm | |
出口阀门控制 Outlet valve control | 有 provided | |
流速功能 Flow velocity function | 能测试质量流速Mass flow rate0-999.9g/s ； 体积流速Volume flow rate：0-999.9g/ml
| |
配置 configuration | 钢尺 、毛刷、秒表 Steel rule, brush, a stopwatch | |
