FT-106B Superhard material bulk density tester

　　一． 参照标准standard:

　　JB/T 3584-1999 本标准是对 JB 3584-84《超硬磨料堆操作密度测定方法》；ANSI B74.17-1976《金刚石磨粒堆积密度的检验方法》

　　适用于粒度为 16/20~325/400 的人造金刚石和立方氮化硼的堆积密度测定

　　This standard applies to the measurement of the bulk density of the synthetic diamond and cubic boron nitride which in 16/20 ~ 325/400

　　二．参数资料:Technical Parameters

　　1.量筒:10±0.2；精度:0.015g ；

　　Cylinder:10±0.2, accuracy:0.015g

　　2.外形尺寸:160mm*160mm*195mm

　　Dimensions:160mm*160mm*195mm

　　3.相对湿度:45%~55%；Relative humidity: 45%~55%

　　4.温度:20~24℃ Temperature: 20~24℃

　　5.漏斗材质:黄铜；漏斗顶部内径:57.1 mm±0.01 mm；锥部高度:41.3 mm

　　导出的锥部角度:63°±10′；漏斗颈内径:6.4 mm±0.03 mm；漏斗颈长度:6.4 mm±0.03 mm

　　Funnel material: brass, funnel top inner diameter: 57.1 mm±0.01 mm, cone height: 41.3 mm, exported cone angle 63°±10′, funnel neck inner diameter:

　　6.4 mm±0.03 mm, funnel neck length: 6.4 mm±0.03 mm

　　6. 漏斗锁闭装置:以一个直径为19 mm的橡皮球，用两根弹簧固定在漏斗颈的下端出口处，不允许有颗粒漏下。 漏斗颈下端至测量筒口的距离为61.9 mm±0.1mm。

　　Funnel locking device: A rubber ball with a diameter of 19 mm, two springs are fixed at the lower end of the funnel neck, particle leakage is not allowed. Distance from the lower end of the funnel neck to the measuring cylinder is 61.9 mm±0.1mm.

　　7. 测量筒the measuring cylinder

　　材质:黄铜Material: Brass

　　内径:19.3 mm±0.01 mm inner diameter:19.3 mm±0.01 mm

　　内深:34.2 mm±0.02 mm internal depth:34.2 mm±0.02mm

　　容积:约10 mL volume: 10 mL

　　8.刮板:刮板工作面的棱角应平整，其平直度在每毫米长度内应小于0.1 mm

　　Scraper: the edge of scraper working surface should be smooth, the flatness shall be less than 0.1 mm per mm.

　　9.允许偏差:16/20~325/400粒度的试样，三次测定的堆积密度值允许偏差不应大于0.015 g/cm3

　　Allowed deviation: 16/20~325/400 particle size sample, the allowed deviation of the bulk density values for the three determination should not be greater than 0.015 g/cm3.