Bench Hand Pencil Hardness Tester QHQ-A Hand Pencil Hardness Tester Machine

Description: Description: Coating surface on the role of the other on the larger hardness of the object, the performance of the resistance, that is, the ability to determine the resistance of the film deformation. Marked by pencil. For coating hardness testing. Brief introduction of hand-cranked pencil hardness tester: QHQ hand-cranked pencil hardness tester This product is designed and manufactured according to GB/T6739-1996. The resistance of the painted surface to another object with greater hardness on it is to measure the ability of the paint film to resist deformation. It is indicated by a pencil mark. Suitable for coating film hardness test 1. Pencil: 6B-6H (6B, 5B, 4B, 3B, 2B, B, HB, H, 2H, 3H, 4H, 5H, 6H) Sanya pencil 6B-9H can also be selected, a total of 17 2. There are three specifications for weights: 500g, 750g, 1000g How to use the hand-cranked pencil hardness tester: 1. Preparation: Use a sharpener to sharpen the pencil to expose the cylindrical lead 5-6mm (do not loosen or cut the pen core), hold the pen core so that it forms a 90° angle with the ''NO: 400'' sandpaper surface , And keep making circles on the sandpaper to rub the end face of the pen core until a lead core with a flat end face and a sharp edge is obtained (the edge shall not be broken or chipped). The pencil should be rotated 180° after each use, or after reshaping Reuse. The test must be performed at a temperature of 23 +/- 2 degrees Celsius and a relative humidity of 50 +/- 5%. 2. Operation: The instrument is placed on a flat workbench, the spacer is placed at the bottom of the instrument, the sharpened pencil is inserted into the main hole of the instrument, the edge of the pencil touches the workbench, and the screw is tightened. 3. Make sure that the weight of the weight 1000+/-50g acts vertically on the intersection of the pencil lead and the test bench, and place the instrument on the tested board so that the pencil and the test bench maintain the same angle of 45 degrees. The test bench can be moved and scratches are drawn with a pencil. Scratch speed: 1mm/s. Starting from the hardest pencil, plough five 3mm long traces for each grade of pencil until you find a pencil that does not plough the coating film. The hardness of this pencil represents the pencil hardness of the measured coating film. Dimensions: 60*20*45 (mm) Measuring range: 6B-6H Test force: 10 (N) Weight: 15 (kg) Maximum allowable height: 20 (mm)

Price: 293.99 USD

Location: shenzhen

End Time: 2024-11-27T23:01:09.000Z

Shipping Cost: 246.8 USD