Description: Introduce the current hot and cold impact environment test, the user is using the environmental test equipment, and the problems and problems often encountered in the specification requirements. If you have the following related questions, welcome to the business department, we will be happy to help you. . : Question 1: Is the temperature change rate of the temperature shock test as fast as possible? Explanation: The temperature change rate in the temperature impact test is as fast as possible. The temperature change rate has no effect on the test results. What kind of temperature change rate is the good shock temperature change rate? Question 2: How to distinguish between temperature shock and temperature cycle? Explanation: Where is the difference between temperature shock and temperature cycle, or is it just the same? Question 3: How is the residence time of the temperature shock test determined? Note: There is a so-called dwell time during the impact process. How does the dwell time of the product to be tested depend on the quantity of the product to be tested or the material of the product to be tested? Question 4: Does the impact temperature need to be OVER or lower than the set value? Note: During the impact process, is the impact temperature correct if it is higher than the set value or lower than the set value? Question 5: Is the temperature sensor of the impact test placed in the test area or in the air duct? Description: The temperature sensor of the impact tester should be placed in the test area or in the air duct? Question 6: Do you want to rush high temperature first or low temperature first? Note: In the temperature impact test, it is necessary to first rush high temperature or first to cry low temperature, if the specification does not require it, then how to decide? Question 7: Why do some shocks have to be normal? Note: Why do some impacts have to be normal temperature, and some impacts do not need to be normal temperature, what effect does the impact test after normal temperature have on the product? Question 8: Can the oven and freezer be used to replace the thermal shock machine for testing? Note: If you don't have enough money to buy a hot and cold impact machine, can you use the oven and freezer to replace the hot and cold impact machine by manual handling? Question 9: How to calculate the estimated life of the product through the thermal shock machine? Description: Use the thermal shock machine to calculate the estimated service life of the product. Question 10: Problems in the test: What are the main points of holding the test item? Explanation: To take the test item into the test furnace, how to take it correctly Question 11: How long does it take to test the furnace wall? Description: How long does it take to test the wall of the furnace? Is it annual or quarterly or weekly? If not, what will happen? Question 12: What do I want to do to shorten the test time? Note: When I am conducting high temperature and high humidity test or impact test, is there any way to shorten my test time and make the test result the same? Dongguan Haotian Testing Equipment Co., Ltd. is a large-scale environmental testing equipment factory. It has long been engaged in research and development and production of environmental testing equipment such as thermal shock test machine, high and low temperature test chamber, constant temperature and humidity test machine, and constant temperature box. The technical talent team has promoted the equipment technology to be the first level of the industry. news: Polyester Spunbond Non-woven Fabric Production Line PET polyester non-woven fabric equipment mainly includes: polyester filament non-woven fabric machinery, polyester staple non-woven fabric machinery. The produced non-woven fabric has the characteristics of high strength, high temperature resistance (can be used in 150 ℃ environment for a long time), aging resistance, ultraviolet resistance, high elongation, good stability and permeability, corrosion resistance, sound insulation, mothproof, non-toxic, etc. In addition, there is a very special physical property: anti gamma ray. The surface is smooth and glossy. It has excellent physical and mechanical properties in a wide temperature range. Its long-term use temperature can reach 120 ℃, and its electrical insulation is excellent. Even under high temperature and high frequency, its electrical performance is still good, but its corona resistance is poor, creep resistance, fatigue resistance, friction resistance, and dimensional stability are good. Polyester spunbond PET filament non-woven fabric production machinery, household non-woven fabric production machinery, PET polyester environmentally friendly non-woven fabric machine Changzhou Puyisen Machinery Technology Co., Ltd. , https://www.pysmachine.com
Nine general technical details you should know when doing a thermal shock test chamber
Nine general technical details you should know when doing a thermal shock test chamber