Touch screen alternating mold test chamber

Fungi grow in soil and on various materials and produce spores that spread. The spores germinate away from the mother body and grow further. Therefore, the spores are extremely small and easily spread with the flowing air. Once the growth environment conditions are suitable, they will form pollution and affect the performance of the equipment. Temperature and humidity are the basic conditions for mold growth, and moisture is a necessary condition for spore germination. The presence of dust or other hydrophilic substances on the surface of the object can absorb enough moisture and nutrients from the atmosphere for spores to germinate and grow. A large number of tests have proved that the most suitable temperature for the germination of most molds that cause equipment damage is between ℃ and ℃. When the relative humidity is lower than %, the spores will not germinate and grow. When the relative humidity is greater than this value, the spores will not germinate and grow faster. The impact of mold growth on products mainly has the following three aspects: Primary impact: Even if the mold only causes slight damage to the material, the surface of the insulating material will greatly reduce the insulation resistance due to the formation of a conductive path by the moist mycelium layer, and seriously cause circuit damage. Significant changes in frequency and impedance characteristics occur. Once the material is attacked by mold, it will lead to a decrease in mechanical strength and changes in other physical properties. Secondary effects: Mold growth on materials can produce organic acids and other electrolytes and other metabolites, which can have secondary effects on the materials. This erosion can lead to electrolysis and aging of the material. In addition, because the mycelium has a water-absorbing effect and forms a saturated sponge layer, even if the external humidity is very low, the mycelium can still maintain a high humidity state in the test body, causing moisture damage to the components. Mold growth damages the appearance of new products and is accompanied by an unpleasant musty smell. Relevant effects: Due to the microstructure of modern equipment and the interconnected equipment, mold growth in one place may have an impact on other components and microparts that are not allowed to grow mold. Therefore, when considering the direct or indirect impact on a single subassembly or component, the possible impact on the performance of the entire machine must be evaluated. Mold growth testing is usually limited to verifying that appropriate components and materials have been used. It is easy to correctly obtain many of the important data required through testing of material components, parts or small assemblies.
Mold growth testing is the final test of a new product that is ready for operation under conditions that are very favorable for mold growth. Testing can detect the nature of any failure in a product with good design performance. In summary, the mold growth (mold) test is to identify the degree of mold growth of samples and their materials under climatic conditions conducive to mold growth and the surface changes and performance effects caused by mold growth. The alternating mold test chamber is a test equipment that allows test samples to be placed in an ideal climate environment suitable for the rapid growth of mold spores to artificially assess the anti-mold performance of the test samples and their structural materials and the impact of mold growth on the electrical and mechanical properties of the test samples.