QND---1Manual type viscometer
A,purpose:
The viscosity of the liquid is a measure of the interaction between the liquid molecules and the ability to impede the movement of molecules,QND - 1Determination of viscosity of coating for condition type viscometer, that a certain amount of paint, at a certain temperature from a specified diameter hole out of time, in seconds,QND-1Viscometer applicable to the determination of viscosity of not less than20(in the second viscometer standard) coating products, and according to the product standards must be heated were determined the high viscosity of coating products (according to the standard of Ministry of fuelHG2-500-67Formulation).
Two,Equipment and appliances:
1, QND-1brooKfield viscometer1box
2, Precision stopwatch0.2second1Only (owned)
3, 0 - 50Degree of accuracy0.1Degree one (owned)
4, Bear the glass in50There is a dial in the ML.1Only (owned)
Three,Structure description:
The upper body viscometer is cylindrical, the conical metal container, the inner wall of the finish at8, the inner wall of the cone is provided with a fixed horizontal ring, and the bottom end of the cone is provided with a leakage nozzle diameter.5.6+0.02high14.0.02Mm, the container has two holes on the cover, a hole for plug rod, another hole for inserting the thermometer for container is fixed in a circular water bath, viscometer device in with two screws on the shelf can adjust the level of.
Four,Operation and use
1And before the experiment, should be the glass container, with the sample itself by the use of a solvent or light gasoline, carefully wipe clean, especially the outlet, and then dried in air or dry cold, observation of the viscometer discharge spout should be clean, if not clean, use cotton dipped in solvent wipe clean.
2Sample stirring evenly, preheat to25.1DEGCOr to the product standard temperature, and static2Minutes or more, let the air in the sample overflow.
3The water in the water bath, viscometer sleeve, the temperature reached25DEGCAnd in the whole process to maintain this temperature, or technical conditions required by the temperature.
4First, the rod is inserted into the drain hole and then Tsui, the specimen into the container, and instructions to the surface level of flat ring, adjusting the level of the sample surface of screw, become level, level ring are only just above level distance.
5The lid of the container is covered, and the temperature of the sample is adjusted so that the container can reach the temperature of the sample.25Degrees.CTemperature of product standard.
6In the following, the leakage nozzle is properly placed under viscometer bottle, when the sample temperature to meet the requirements, will bring great rapid outflow from the leakage in the sample, Tsui, instantaneously start the stopwatch, when the bottle specimen reached50Ml line, stop the stopwatch, record the outflow time (accurate to0.2Second).
The sample through the nozzle into the bottle leakage viscometer50Ml, the required time (seconds) that is the condition of the sample viscosity.
7Measurement error range, the value of the two test should not be greater than the average value of the8%.
Method five, calibration viscometer
The corrected viscosity measured by viscometerT1, multiplied by the correction factorkIs the actual conditions of the viscometer measured the viscosityt.
T=kA.T1
TypekThere are two ways to get the value of the value:
1Standard configuration: first, viscometer method5Aviation lubricating oil and aviation lubricating oil with different viscosity20GB440-64And transformer oil (SYB1351-62Mixed oil in25.0.2DEGCWhen measured in the standard viscometer and corrected the outflow time of viscometer, obtained a series of time ratio of two viscometerK1,K2~~The arithmetic mean is the correction factorK.
2Exercise: when the lack of standard viscosity viscometer is timing.tValue is calculated by the following formula.
T=0.053n+1.0
TypenFor in25.0.1DEGCAccording toGB265-64"Kinematic viscosity measurement method" for the determination of the absolute viscosity of the mixed oil of the aviation lubricating oil or aviation lubricating oil and transformer oil, and thus obtain a series oftWith a series of calibrated viscometer measuredT1The arithmetic mean of the ratio isKValue.
Such as correction factorKstay0.95~1.05Range is viscometer should be replaced, may not continue to use.
-------------------------------------------------------------------------------------------------------------------------------------------------
ขอใบเสนอราคาหรือสอบถามข้อมูลเพิ่มเติม 0922530999 , 0848744848 หรือ email (
[email protected] )
ชำระค่าสินค้าโดยการโอนเงิน
โดยจะทำการส่งสินค้าในวันถัดไปโดยบริการ EMS และจะส่ง Tracking NO. ให้ทาง EMS
รอรับสินค้าภายใน 2-3 วันหลังการจัดส่ง
ปล. กรณีไม่มีสินค้าในสต็อกอาจต้องใช้เวลาในการสั่งซื้อประมาณ 10-20 วันทำการ
ทดลองใช้สินค้าและสินค้าไม่ตรงกับรายละเอียดไว้ หรือ ไม่พอใจในตัวสินค้า เรายินดีคืนเงิน 100%
(ภายใน 7 วัน)