1. Kexin Fineness Meter
It is designed according to the standard coating inspection method promulgated by the Ministry of Chemical Industry: Fineness Meter Measurement Method GB/T1724-93. It can be used to inspect the fineness of pigments, fillers and impurities in paints and paint bases, expressed in microns.
2. Specifications
1. Scraper size: 155*50*12
2. Chute size: 13*120
(1) Specifications
| QXD-25 | 1:4000 | QXD-50 | 1:2000 |
| QXD-100 | 1:1000 | QXD-150 | 1.5:1000 |
(2) Scale value: 5 microns
3. Scraper size: length 68*40*6
4. Accuracy
(1) The straightness of the plane on the scraper is 0.003 mm; the straightness of the QXD-25 plane is 0.002 (within the range of the engraved line)
(2) The straightness of oblique phase bottom plane is 0.003mm
QXD-25 plane straightness 0.002<within the range of the engraved lines>
(3) The straightness of the two blades of the scraper is 0.002mm
5. Finish
(1) flat surface on the scraper 10
(2) Oblique bottom surface 8
(3) The smoothness of the two blades of the scraper is 8
Three, use
When using, first wash the scraper and scraper with gasoline, dry it with cotton yarn, and then wipe it off with buckskin, fumigate a little with a glass rod, and drop a little paint that has been mixed thoroughly (consistency in line with the product standard) to be measured onto the scraper. In the deepest part of the chute, the amount of dripping should be slightly more than the appropriate amount to fill the slant structure. Then place the scraper horizontally on the upper end of the scraper with the thumb, index finger and middle finger of both hands, so that the edge of the scraper touches the surface of the scraper vertically. From the depth of the chute Pull it to the shallow place, and immediately (within 5 seconds) observe the scale line where the particles in the tank are evenly exposed. This value is the fineness of the pigment and other particles in the paint.
4. Others
1. The surface of the scraper and the edge of the scraper must not be bumped.
2. Wash and apply anti-corrosion oil after use.
3. Regularly check the scraper and the straightness of the knife edge every year. If it does not meet the requirements, it should be repaired.
4. One box of this instrument has a built-in scraper and two scrapers.
5. This instrument is suitable for ensuring accuracy under the condition of temperature 22±1°C and relative humidity of 70%.
