Thermal shock test, also known as temperature shock test or high and low temperature impact test, is used to check the adaptability of products to the drastic changes of ambient temperature, and is indispensable in the identification test of equipment design finalization and routine test in batch production stage. It can be said that the frequency of application of cold and hot shock test box in verifying and improving environmental adaptability of equipment is second only to vibration and high and low temperature test. Our company will test the workpiece into the high and low temperature test box, through the setting of procedures - 40 C1h / 100 C1h variable cycle test to check the performance of the adhesives.