The hot and cold shock test box adopts South Korea imported "TEMI8226" dual-circuit high-precision-LCD display-touch key temperature controller, programmable microcomputer PID control SSR output operation, large LCD color touch screen screen, simple screen operation, easy program editing, The temperature and humidity control adopts PID + SSR system coordinated control with the same channel, and has an automatic defrosting device (so that the water vapor generated during the test will not accumulate on the refrigeration evaporator, causing ice blockage)
The hot and cold impact test chamber is mainly made of water-based epoxy resin as a film-forming substance (Note: only for the two-box impact box, the three-box type is made of three independent and intercommunicating inner diameters made of all stainless steel) epoxy The resin is designed as an aqueous dispersion, mainly because epoxy resin has excellent corrosion resistance and various chemical properties. It is not easy to reflect chemical changes or physical changes with the tested product. Another improvement is to connect the hydrophilic nonionic surface active agent to the molecules of the resin and curing agent. Make the equipment effective and reduce the risk of experiment.
Reference standards for hot and cold shock test chamber:
National Military Standard GJB150.3-86; National Military Standard GJB150.4-86; National Military Standard GJB150.5-86 and GB2423.2-89 Basic Test Procedures for Electrical and Electronic Products Test B: High Temperature Test Method and .1-89 Low temperature test method. At the same time, there are relevant industry standards such as GB 2423.22-Test N temperature change test method.
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