- 產(chǎn)品型號(hào):
- 407,407A
- 標(biāo)準(zhǔn):
- ASTM D562; JIS K5600-2.2
簡(jiǎn)介
旋轉(zhuǎn)槳式黏度計(jì)是克雷布斯式黏度計(jì),是測(cè)定非牛頓材料黏度的有用工具。由于大多數(shù)油漆都是非牛頓液體,因此本黏度計(jì)廣泛應(yīng)用于油漆工業(yè)。
非牛頓材料的黏度,會(huì)隨剪切速率的變更而變更,但用旋轉(zhuǎn)槳式黏度計(jì)作測(cè)定時(shí),是依靠那在一定剪切速率下所作的測(cè)量來(lái)進(jìn)行的。
原理
將槳插入一裝有試樣的容器中,用由向下降落的砝碼所引起的恒定的轉(zhuǎn)矩使槳葉旋轉(zhuǎn),進(jìn)而計(jì)算相關(guān)的試樣粘度。
測(cè)量方法
通過(guò)增加砝碼,使槳葉的轉(zhuǎn)速調(diào)整到正好200rpm為止。讀出這時(shí)所加的砝碼總重量,即為測(cè)量涂料的粘度值。
測(cè)量范圍54-140 KU(75
訂購(gòu)需知
Ref407- 頻閃儀式黏度計(jì),它通過(guò)觀察光柵是否恒定來(lái)判斷200rpm轉(zhuǎn)速的
Ref
Ref440- 校準(zhǔn)油+-2%
Ref441- 校準(zhǔn)油+-0.2%
Krebs Viscometer Ref 407/
The viscosity of non-Newtonian materials depends upon the shear rate applied. The rotating paddle exerts a constant rate of shear by means of falling weight, the size of this weight being relative to the viscosity. The weight is gradually increased until a paddle rotation of 200 RPM is achieved.
This speed is displayed on either an LCD display or indicated via a stroboscope.
All instruments comply to ASTM D562
Ref
Ref 407 Stroboscope version