Summarize Taiwan's giant constant temperature and humidity test box loading and unloading tips

Summarize Taiwan's giant constant temperature and humidity test box loading and unloading tips
The Shanghai Tournament Test Constant Temperature and Humidity Test Chamber is expensive, in order to avoid the appearance of scratches during unloading, and the appearance of the tilt angle is too large, resulting in Freon leakage. Xiaobian summed up the following points:

First of all, it is forbidden to carry out loading and unloading during the operation of the Shanghai Tournament Test Constant Temperature and Humidity Test Chamber, and all procedures must be closed. Turn off the power, water, and air supply.

Second, when pulling the test box with the tower crane, to prevent accidents, it should be carried out slowly and at a constant speed.

Third, before the shovel is used to lift the test box by the forklift, in order to prevent the forklift from scratching the bottom of the equipment, the pallet is placed at the bottom of the Shanghai Hengshen test constant temperature and humidity test chamber.

Fourth, the test box must be horizontal and vertical during the process of being pulled by the forklift.

Fifth, the forklift should drive at a constant speed. Before entering the door, ensure that the width and height of the door are greater than the width and height of the test box, so as not to get stuck when entering the door.

Sixth, it should be placed gently when placed, and the speed may cause the movement of internal parts.

Finally, the Shanghai Hengshen test constant temperature and humidity test chamber needs to be placed horizontally and cannot be tilted.

Shanghai Tournament Test Constant Temperature and Humidity Test Chamber Tips

In the temperature and humidity cycle test, the airflow (speed) in the test chamber and the moisture in the test chamber are worthy of attention to avoid parameter instability and cause damage to the product. Unnecessary damage.

In the environmental reliability test, when the temperature cycle changes, the high temperature stress, the low temperature stress and the thermal fatigue interact on the product, and the materials will have different degrees of thermal expansion and contraction. The feature is that increasing the temperature variation range and the temperature change rate can strengthen the process, thereby enhancing the thermal stress and increasing the number of cycles, which will directly affect the excited stress (this stress test generally adopts a high and low temperature test chamber or a high and low temperature impact test chamber). It can be done).

In the temperature cycle test, the uniformity of airflow (speed) in the test chamber is a very important parameter, which will affect the temperature change rate of the product. This requires that when multiple test products are tested simultaneously, there should be appropriate spacing between the test products and between the test product and the test chamber wall so that the air flow can freely circulate between the test products and between the test product and the tank wall. .

In the temperature cycle test, the temperature and humidity conditions of the Shanghai Tournament test are changed to high temperature and high humidity conditions. Since the air temperature rises faster than the product temperature, when a certain temperature difference is reached, the product will be coagulated. dew. The greater the temperature difference, the more obvious the condensation phenomenon, and the condensation water cannot be discharged in time, which increases the probability of corrosion of the product and reduces the insulation strength. For the whole machine, it will lead to sensitivity reduction, frequency drift, etc., which will seriously affect product quality.

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