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Showing posts from April, 2025

High and Low Temperature Environmental Chamber — Test the Temperature Resistance of Products

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  Temperature is the inevitable stress that every product of materials experiences at the testing stage after development. How the product or material reacts to the effect of stress might differ from each other. When people purchase electronics they use them differently, while some may use the electronic products as recommended by the manufacturer others will typically abuse them. This is why each manufactured product needs to undergo temperature qualifications, life testing, and other additional evaluation before officially introducing it in the marketplace. These products at the initial developmental stage are subjected to a series of temperature testing ranging from high to low. There are many things to consider when ensuring the safety of developed products for customers and so of the questions you’re looking for its answer might include: What is a high and low temperature environmental chamber? Environmental chambers come with different features that include high temperature a...

Why do lithium battery safety tests need to be carried out ?

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  The use of lithium-ion batteries in portable electronics is trending nowadays because of its advantages over other types of batteries. However, before the lithium-ion batteries are used in powering technological devices they undergo testing processes and validation, which ensures that the possibility of risks is mitigated. These testing processes are important in regulating one of the important issues associated with lithium-ion batteries, which is thermal safety. This is because electronics nowadays requires the use of simple and lighter batteries with a higher capacity of powering the device for a longer period. This has increased the demand in the marketplace of producing lithium batteries to the highest level by creating dangerous cases due to the increased amount of transportation along with people handling it. Here various reasons why the lithium-ion battery undergoes strict safety tests: Transportation testing All manufactured lithium-ion batteries undergo the transportati...

5 Aspects to Comprehensive Understanding of the Salt Spray Chamber

  The salt spray method is a popular process, which ensures that materials and products are tested for corrosion determining its ability to adapt to certain environmental conditions. This process requires the use of a testing chamber to check the corrosion resistance of different products or materials surface. The use of the salt spray method applies to certain metallic materials and products, which can be metals, alloys, and others. Products that are finished with a surface coating of metallic will require  salt spray testing  to determine the degree of corrosion. During the testing period, the salt spray produces a corrosive attack on the material to evaluate its degree of sustainability or amount of damages the material incurs under certain conditions. The salt spray testing period depends on the material’s ability to resist corrosion, which can be due to its coating or finishing features. This means that the higher the material’s ability to resist corrosion, the longe...

Rain Spray Test Machine Operation Guidance

 The rain spray test machine is used for external lighting and signaling devices and automobile lamp shell protection, which can provide a realistic simulation of various environments such as water pouring and spray tests that electronic products and their components may be subjected to during transportation and use. But when you are experimenting, do you know the most important factors? Factors of product placement When we are doing the test, the length of the test time directly affects the rationality of the test results. If the test time is too long, it does not conform to the situation of natural rainfall. If the test time is too short, the rainwater will not enter the tested product, and the evaluation effect will not be achieved. In addition, during natural rainfall, the direction of each rainfall cannot be the same, which means that the surface of the tested product is exposed to rain differently, so we put the tested product in a normal use state during the test. Water temp...

What is the Aging Test ? (part 2)

  Temperature Alternating Aging Test‍ Temperature is another important factor leading to the aging of polymer materials. For polymer adhesives, high temperature can accelerate the movement rate of the polymer adhesive chain, and low temperature can cause internal stress in the polymer adhesive. Alternation leads to chain scission of polymer adhesives and degradation and aging. For rubber, high temperatures can accelerate the thermal movement of the molecular chain and Crosslink the rubber. Low temperature can cause the rubber molecular chain to freeze, making it brittle, decreasing its elasticity, and aging. High and low temperature alternating aging test is an aging test method to evaluate the temperature resistance of polymer materials. It is usually carried out in a temperature alternating aging test chamber, from a certain temperature T1 (generally room temperature) to a certain temperature at a constant heating rate T2, maintain the temperature of T2 for a certain period of ti...

What is the Aging Test ? (part 1)

 The aging test mainly refers to the thermal oxygen aging test of rubber, plastic products, electrical insulation materials, and other materials; or the ventilation aging test for electronic parts and plastic products. Seven aging test methods : At present, there are many aging test methods for polymer materials, including  climate aging test , ultraviolet aging test, ozone aging test, hot air aging test,  high and low temperature  alternating aging test, damp heat aging test, medium aging test, salt spray aging test, etc..   Climate Aging Test The so-called climate aging test is a kind of research method that exposes the test samples of polymer materials to atmospheric environmental conditions, so as to obtain the aging law of the material samples exposed to the atmospheric environment, analyze the properties of polymer materials, and predict their service life. There are two types of climate aging tests One of them is the natural exposure test, the polymer mat...

How to choose the temperature humidity test chamber ?

  The temperature humidity test chamber indicates the effect of temperature changes on materials and products. The temperature humidity test chamber aids effectively in ensuring positive outcomes in products with strict limits to failures. The humidity test chambers are developed in different sizes with a series of innovative features from brands like DGBell’s  temperature humidity test chamber . Most temperature humidity test chambers are small in size for testing smaller products and materials, while the larger machines are for testing bigger products. However, when it comes to choosing of temperature humidity test chamber, there are several things to consider, which includes: Humidity range The normal relative humidity range of environmental test machines range from 20% RH ~ 98% RH. Considering the humidity range when choosing a humidity test chamber is necessary as most chambers have certain humidity indicators. It’s this indicator from the chamber that indicates the type ...