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Something About Thermal Shock Test

  Electronic products in the development and manufacturing process may have a variety of reasons leading to the direct occurrence of defects.  Some defects of electronic products can be eliminated by conventional inspection methods. However, conventional methods cannot detect potential defects.  At this time, we need to use the thermal shock chamber to conduct the experiment. To some extent, the early stage failure and exposure design and manufacturing process of components and components can be eliminated by using temperature impact chamber to conduct experiments on electronic products. The reliability of the product is in line with the actual demand, thus improving the reliability of electronic products. Basic method of thermal shock 1. Thermal Shock Test Selection Principle In general, electronic products that may be used in the event of a sharp change in air temperature need to be detected by a thermal shock chamber. In addition, the thermal shock chamber is also an environmental s
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The Function of Battery Pack Crush Nail Penetration Test Machine

The battery pack crush nail penetration testing machine plays a crucial role in battery safety performance testing. With the continuous development of battery technology and the expansion of battery application fields, especially in the fields of new energy vehicles, mobile devices, etc., the safety of batteries has become a focus of people's attention. The function of the battery pack extrusion needle punching test machine is mainly reflected in the following aspects: Evaluate battery safety performance The battery pack crush nail penetration testing machine evaluates the safety performance of batteries by simulating the compression and needle punching of battery packs under extreme conditions. This test can reveal the reaction of batteries when subjected to external forces or internal short circuits, such as whether thermal runaway, fire, or explosion occurs. Prevent potential security risks By conducting crush nail penetration tests on battery packs, potential safety risks can
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Temperature Overshoot Problem of Environmental Chamber During Detection

  The temperature chamber   and   the temperature humidity chamber   are two important types of simulated enironmental chambers in envrionemntal chamber. These temperature humiditychambers is widely used in electronics, machinery, chemical, construction and other industries. It provides a reliable artificial environment for environmental adaptability research of various equipment, materials and components. High low temperature chamber  has been widely used in electronics industry and some industries with high precision requirements. However, as processes and technologies improve, the ability to test chamber is increasing. Many different testing requirements and testing indicators will be encountered during the testing process. For example, the current constant temperature humidity chamber is required to be tested under low temperature and low humidity conditions. The thermal shock chamber requires temperature changes above 30 °C per minute and so on. This brings certain difficulties to
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Several Problems Should be Noticed in Environmental Tests

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  Simulated environmental testing is an activity carried out to use, transport or store products in an intended environment to maintain product functional reliability. The simulated environmental test is mainly used to analyze the degree of influence of environmental factors and its mechanism of action. Because the simulated environmental test is not subject to nature, it is not limited by time and place, saving manpower, material resources, and can be carried out all day. Therefore, simulated environmental tests are widely used around the world.  On the one hand, it shows its scientific nature, on the other hand, it also confirmed its value. Simulated environmental testing techniques are the result of long-term repeated practice by several generations of scientists. Simulated Environmental Test Classification Under normal circumstances, environmental tests are divided into two categories:  Climate environment test Mechanical environment test 1. Climate environmental tests mainly inclu
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The Importance of Lithium Battery Safety Testing

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  Present Situation Since the mass production of lithium batteries, it has quickly led the trend in the battery field with its high energy ratio, long cycle life, and high electrode voltage. It has an absolute advantage in mobile phones, computers and other industries. And become one of the important research topics of the current new energy vehicles. In order to meet the market demand for high storage energy, enterprises have increased the specific energy research and development of individual batteries. Although it is possible to increase the waiting time of the mobile phone, it also makes the volumetric energy density of a single battery higher and higher. The safety of lithium batteries is becoming more and more prominent. The main constraint to the commercialization of high-capacity and lithium-ion batteries is safety. Constrained Problem However, in recent years, with the large-scale utilization of the market and the increase in the capacity of the battery itself, under the abuse
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What is Three Proofings ? Does Your Electronic Device Meet the Standards ?

  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
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How to Choose an Environmental Test Chamber ?

  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
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