The high and low temperature aging test chambers are clearly defined in the test for the shape, volume and position of the tested parts. So how do you place the irregular test? Today, we will give a brief introduction to the placement of irregular test pieces.
1. If the item to be tested is liquid, it must be filled with the corresponding container when it is tested in high temperature and low temperature with high and low temperature aging test chamber, and it should not be spilled.
2. If it is a volatile, flammable or explosive item, it should never be put into the test box for testing. Because the conventional high and low temperature aging test box is not explosion-proof, if it is to be equipped with explosion-proof function, the equipment is ordered. Before the manufacturer must explain, require the manufacturer to carry out some special treatment on the equipment to prevent danger when using.
3. If the test sample is a rubber-based product, it is necessary to use a plate or a bottom plate in advance to prevent the test piece from being immersed in the sample holder after being melted at a high temperature.
Sample volume: There is also a clear definition in the standard, the volume of the measured object can not be greater than 1/5 of the volume of the working chamber. Because the volume of the measured object is larger than this volume range, it may affect the air circulation in the test chamber, thus affecting the uniformity of the equipment, thus failing to meet the requirements of the test.
Placement of the sample: The sample is usually placed in the middle of the high and low temperature aging test chamber, and the upper air duct cannot be covered; the test piece cannot be placed on the bottom of the equipment; it needs to be placed according to the size of the sample. , weight, and quantity to adjust the distance between the racks.
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