Products Description
Working principle:
The instrument consists of a pencil lead frame and a test stand. The pencil holder and the pillar form a four-bar linkage structure to ensure that the weight of the weight acts perpendicularly on the intersection of the pencil lead and the test stand. Angle, and remain unchanged. Test-bed can be horizontal, vertical movement, use it to fix the paint sample, and
make the model slide in the direction of scratches, pencil on the test strip to draw the corresponding track. The use of different pencil strokes of different traces, which can determine the hardness of the coating.
make the model slide in the direction of scratches, pencil on the test strip to draw the corresponding track. The use of different pencil strokes of different traces, which can determine the hardness of the coating.
Test work:
1. Tester: To ensure that the weight of the weight 1000 +/- 5g vertical interaction between the pencil lead and the test bench at the intersection of the pencil and the test stand to maintain 45 degree angle unchanged. The test bench can be moved, scratched with a pencil.
2. Prepare a group of Chinese drawing high-level drawing pencils 5H-5B. Pencil preparation; Remove the wood exposed 3mm lead, draw a circle on the sandpaper, the pencil tip is not flat to make the edge sharp.
3. The test must be carried out at a temperature of 23 +/- 2 degrees Celsius and a relative humidity of 50 +/- 5%.
2. Prepare a group of Chinese drawing high-level drawing pencils 5H-5B. Pencil preparation; Remove the wood exposed 3mm lead, draw a circle on the sandpaper, the pencil tip is not flat to make the edge sharp.
3. The test must be carried out at a temperature of 23 +/- 2 degrees Celsius and a relative humidity of 50 +/- 5%.
QHQ hardness tester contains 1000g, 750g, 500g three kinds of load (250g weight 2 +500g weight 1)
Standard:Host 1 + weight 3 (already installed on the machine)
Standard:Host 1 + weight 3 (already installed on the machine)
Details Images
Company Profile
Our Advantages
Exhibition
Pcaking& Shipping
FAQ
Reviews
There are no reviews yet.