The Process Steps of HAST High Acceleration Life Test

HAST high acceleration life test is a testing method that achieves accelerated aging of products by applying high temperature, high humidity, and high pressure to the sample. Widely used in industries such as PCB, IC semiconductor, connectors, circuit boards, magnetic materials, polymer materials, EVA, photovoltaic modules, etc. for accelerated aging life testing, to evaluate product sealing, moisture absorption, and aging performance.

The HAST high acceleration life test is mainly used to evaluate the reliability of products or materials in humidity environments. It is completed by setting and creating various conditions of temperature, humidity, pressure, etc. in highly controlled pressure vessels, which accelerate the penetration of moisture through external protective plastic packaging and apply these stress conditions to the material body or inside the product.

Compared to traditional high temperature and high humidity testing, such as 85 ° C/85% RH, HAST increases the pressure inside the container, enabling temperature and humidity control under conditions exceeding 100 ° C, accelerating the aging effect of temperature and humidity (such as migration, corrosion, insulation degradation, material aging, etc.), greatly shortening the testing cycle for reliability assessment, and saving time and cost. The HAST high accelerated aging test has become a standard in certain industries, especially in products such as PCBs, semiconductors, solar panels, and display panels, as a fast and effective alternative to the standard high temperature and high humidity test (such as 85C/85% RH-1000 hours).

The process of HAST high acceleration life testing generally includes the following steps:

1. Sample preparation: Select the samples that need to be tested and ensure that the size, structure, materials, etc. of the samples meet the testing requirements.

2. Preparation before testing: Check and maintain the test chamber to ensure its normal operation, and set testing parameters such as temperature, humidity, time, etc. according to standard requirements.

3. Sample installation: Install the sample to be tested in the test chamber as required to ensure the stability and safety of the sample.

4. Start testing: Start the test chamber and begin the high acceleration life test. During the testing process, the test chamber will simulate a high temperature and humidity environment to accelerate the aging of the sample.

5. Testing process monitoring: During the testing process, it is necessary to monitor the performance and status of the samples in real time and record test data.

6. Test result analysis: Analyze and evaluate the performance and reliability of the sample based on test data, identify potential problems and defects.

7. Subsequent processing: Based on the test results, the sample is processed accordingly, such as repair, improvement, or scrapping.

It should be noted that the specific process of HAST high acceleration life testing may vary depending on different standards and requirements, so corresponding standards and specifications need to be referred to during specific operations. Chuangxin Testing always adheres to the principle of "professionalism, authority, efficiency, and innovation", and has purchased international advanced testing equipment with a heavy investment. The testing strictly follows international testing standards and methods, and is recognized by the China National Accreditation Service (CNAS) and the Guangdong Provincial Administration for Market Regulation (CMA). The testing reports issued by Chuangxin Testing have international mutual recognition effect, and can be recognized by 70 laboratory accreditation institutions in 58 countries around the world. Welcome to call, we will be happy to serve you!