overview

It is mainly used to determine the fineness of pigment and impurity particles in paints, lacquers, inks and other liquid and other liquids and slurries in the fineness of pigment and impurity particles.

The double groove fineness meter has an additional measurement groove than the single groove, which allows two experimental results to be obtained at the same time under the same environment/conditions, which is more convenient for users who need to do multiple repetitive experiments.

Specification

scale range：0-25

Indexing Value： 2.5μm

Recommended range <20

Scraper size: 155*50*12mm

Inclined groove size: 120*13mm

Maximum depth of groove: 25μm

Inclination of groove: 1:4000

Scraper size: 68*40*6mm

Standard: GB/T1724-93

Precision

(1) Straightness of the upper plane of the scraper 0.003mm

Plane straightness 0.002 (within scribe line)

 (2)Straightness of plane at the bottom of inclined groove 0.003mm

Plane straightness 0.002 (within the scribe line)

 (3) scraper two cutter plane straightness 0.002 mm

Glossiness

(1) Scraper upper plane 10

(2)Bottom surface of inclined groove 8

(3) Scraper two cutter finish 8

usage

1. The specimen which conforms to the standard viscosity index of the product is fully stirred with a small paint mixing knife, and then a few drops are dropped on the deepest part of the scraper fineness.Stir well, and then in the deepest part of the scraper fineness, drop a few drops of specimen, to be able to fill the grooves and slightly excess appropriate. In order to be able to fill the grooves and a little excess is appropriate.H
2. old the scraper with both hands, place it horizontally on the upper end of the polishing plate (at the edge of the specimen) so that the scraper can be used for the purpose of polishing the specimen.Edge of the specimen) so that the scraper and the surface of the polishing plate vertical contact.
3. In 3s, the scraper from the deep part of the groove to the shallow part of the pull through, so that the paint sample filled with grooves and the plate.Make the paint sample full of grooves without leaving residual paint on the plate. After pulling the scraper, immediately (not more than 5s) Immediately (not more than 5s) make the line of sight at an angle of 15-30° to the plane of the groove. Observe the evenly exposed particles in the groove in the light, and write down the readings (accurate). to the smallest division). If individual particles are exposed on other divisions, the reading is the same as that of the adjacent divisions. If individual particles are exposed on other dividing lines, the reading should not exceed three particles within the range of the adjacent dividing line.