QTX type paint film elasticity tester, paint tester GB/T1731-93

Product Introduction Detailed parameter and size display |Product Introduction: The paint film flexibility tester, also known as the paint film elasticity tester, is designed according to national standards According to GB1731 "Determination of Flexibility of Paint Films", it is manufactured. during the test Bend the coated test panel onto shafts of different diameters to avoid pulling The minimum shaft diameter (mm) for coating failure is used to indicate the flexibility of the coating. |Equipment and tools: The paint film elasticity tester (as shown in the figure) consists of seven steel shaft rods with different diameters and diameters Composed of, fixed on the seat frame, the seat frame can be screwed onto the table of the test bench with screws On the edge of the child. QTX type paint film elasticity tester (according to national standard GB1731-93) The paint film flexibility tester is composed of different diameters or Composed of 7 axis rods with curvature radius. Product usage steps Polish the iron plate with emery cloth or emery paper No. 0, and wipe it with pine perfume On the iron plate, apply the sample preparation method or according to the product standards of the sample Using paint. If the product standard allows, the iron plate can also be cleaned with pine perfume without polishing, After the paint film dries, or according to the specified time of the product standard, press the sample tightly On a 15mm diameter shaft rod 1, with the paint film facing upwards, bend the shaft rod 180 degrees, The time for bending 90 degrees on each side is 23 seconds. If the paint film is bent When there are no cracks or peeling phenomena observed with a four fold magnifying glass in the future, that is, in sequence Bend and observe on each axis rod of 10, 5, 4, 3, 2, and 1 millimeter. During the experimental process, observe with a 4x magnifying glass that the paint film does not appear When cracks and peeling occur, the smallest diameter shaft rod passing through is considered flexible Or elasticity indicators. During general testing, bending can be directly performed on the shaft rod specified in the product standard Qu, determine if it is qualified. The flexibility or elasticity of the paint film can be directly measured using a shaft rod The diameter is expressed in millimeters. (1) Flexibility remains unchanged when finally bent with a 10mm diameter shaft rod Bending on a shaft with a diameter of 15 millimeters without any change, while on a straight shaft with a diameter of 5 millimeters Bending on the radial shaft rod can cause damage, such as cracking or peeling of the paint film. Here, 10 Millimeters are the minimum diameter passed through; (2) Flexibility remains unchanged when bent with a 1mm diameter shaft, which means that there is no change in Some of the bent paint films on the shaft rods are undamaged.