Testing Chambers Knowledge

  What is Three Proofings? Electronic equipment is very sensitive to environmental conditions. Especially the environmental factors such as moisture, salt spray and mold are more prominent.  The so-called three proofings refers to the moisture-proof, salt-proof, and anti-fungal properties of electronic equipment. With the increase in the requirements for the three proofings of electronic devices, the problems exposed in electronic devices are also increasing. Some products are difficult to pass the damp heat, salt spray and mold tests smoothly. There are even obvious corrosion of materials, coatings and coatings, as well as a significant drop in electrical performance.This article mainly describes the moisture protection in the three proofings. Method of Moisture Absorption The moisture absorption of objects has four forms: Diffusion Absorption Adsorption Condensation The diffusion and absorption cause water molecules to enter the interior of the material, thus reducing the electrical

  There are many types of environmental chambers, so for those who are not familiar with environmental chambers, choosing an environmental chamber is a headache. Here DGBELL will teach you how to choose an environmental chamber. Engineers engaged in the study of environmental conditions of engineering products have summarized the environmental conditions and the environmental conditions induced by human activities into a series of test standards and norms. Through these standards to conduct environmental and reliability tests of engineering products. Therefore, when selecting  environmental test chambers , we mainly rely on the test specifications and test standards of engineering products. Selection criteria of environmental chamber 1. Volume Selection When the tested product is placed in an environmental chamber for testing, the working chamber volume of the climatic environment test chamber should be at least 3 to 5 times the outer volume of the tested product.   2. Selection of Tem

  The scope of electronic products mainly covers lighting products, electronic components, and mobile communication terminals. They have clear regulations for enclosure protection testing. These requirements are generally: waterproof, explosion-proof, and mechanical shock resistant.   However, at this stage, manufacturers do not attach great importance to dust testing.   The general view is that dust is mainly distributed in dry areas with large radiation, and the sources of dust in other areas are diversified. For example, fine sand comes from the desert, and carbide is exhaled or artificial. The importance of Dust Test The harm caused by dust in real life is enormous, and it itself will become a harmful substance. For example, interference optical performance, jamming of moving parts, reduction of heat transfer efficiency, grinding of moving parts, clogging of air filters, damage of electrical insulation, etc. If the conditions are ripe, it will cause mildew, corrosion, and may also

When you are going to purchase a walk in stability chamber, you first need to determine the size of a walk in stability chamber you need. For the reason that the tested products are different and so are the experiment spaces. Therefore, the size of the walk in stability chambers are something you need to pay special attention to. It is available in several sizes: miniature, small, medium, and large. The previous article introduced the benchtop environmental test chamber. This article mainly introduces the walk in environmental stability test chamber. The walk in stability chambers are used for heat and cold resistance tests in the defense industry, aerospace industry, automotive components, electronic components, plastics, chemicals, pharmaceuticals, and related products. Walk In Stability Chamber Applications It mainly provides large-scale temperature and humidity test environment space for large parts, semi-finished products, and finished products for the industry. Besides, It is als