IEC60695 Ball Pressure Test apparatus for heat resistance testing

Introduction:

Ball Pressure Apparatus  is used for testing parts of nonmetallic materials for resistance to heat.

Ball Pressure Apparatus is the requirement ball(R2.5mm)and total test force20N±0.2N ball pressure testing device,special instrument for testing the heat resistance of non-metallic materials .

Application:

Ball Pressure Apparatus is used for testing parts of non-metallic materials for resistance to heat. It is applicable to electrical equipment, its sub assemblies and components, and to solid electrical insulating materials except ceramics. Ball Pressure Apparatus is the requirement ball(R2.5mm) and total test force 20N±0.2N ball pressure testing device , pressure level of the state and was placed in the heating chamber on the surface of the test.

The ball pressure test is a ball pressure tester that stipulates a steel ball (R2.5mm) and a total test force of 20N±0.2N, and presses it on the surface of the sample in a state of being placed in a heating box at the temperature specified in the sample. After 60 min + 2 min / 0 min, the test sample was quickly immersed in 20 ° C ± 5 ° C water for 6 min ± 2 min, and the diameter of the surface indentation of the test sample was measured within 3 min from the water, and the diameter of the indentation was more than 2 mm. The heat resistance of the sample at the specified temperature is evaluated.

Detailed Information

How to do the test ?

1.Put the device into the sample heating box first.After 24 hours at standard required temperature or after reaching thermal equilibrium conditions,can do next test

2.Place the heat treated sample on the center plane of the support,then place the pressure ball on the center plane of the specimen smoothly

3.When reach the pressure time required by the standard, the pressure ball should be removed vertically upwards, and then the sample should be taken out for further testing.