宿州附近想过夜电话联系

National Service Hotline

400-039-9905

Hot products: High and low temperature test chamber Walking in high and low temperature damp heat Laboratory High and low temperature alternating test chamber High and low temperature shock test chamber High and low temperature damp heat test chamber

news information

Condensation phenomenon and condensation test requirements of small high and low temperature test chamber

Source: website release time: 2020-07-29 14:30:00 reading: 118

   Small high and low temperature test chamber The main test of the product is to test the performance of the product through the test of the low temperature, humidity and thermal expansion by using the low temperature, humidity and environmental effects.

   small high and low temperature test chamber can also carry out constant temperature and humidity test, keep the test environment temperature at a certain required temperature and humidity, and can carry out high temperature aging test or low temperature test, so it is also called constant temperature and humidity test chamber. It can be used to simulate multi climate environment, and it is often used in aerospace, chemical, pharmaceutical, metal, plastic, rubber, ceramics, composite materials and so on.


   Small high and low temperature test chamber The condensation phenomenon is as follows

   condensation is actually a phenomenon of water molecules adsorbing on the product, but it is generated when the test temperature changes. In the heating stage, when the surface temperature of the product is lower than the dew point temperature of the surrounding air, the water vapor will condense on the surface of the product to form water droplets. In the heating stage of the alternating damp heat test, due to the thermal inertia of the product, its temperature rise lags behind the test The temperature of the box. Therefore, the amount of condensation on the surface depends on the heat capacity of the product itself, the heating rate and the relative humidity in the heating stage. In the cooling stage of the alternating damp heat test, the inner wall of the closed shell cools faster than the air in the shell, so the condensation phenomenon also appears.

   Small high and low temperature test chamber Condensation test requirements of

   components shall be subjected to condensation test after removing the shell. During the condensation test, the circuit board should be in live operation. The electronic functions are monitored by a computer supported test bench. The test piece shall be placed in the center of the test chamber. The ambient temperature of the PCB under test was always 1K to 2K higher. Because when the humidity is from 98% to 98%, there will be continuous condensation on the test piece. The parameters of dewing control are the start temperature and the end temperature, as well as the time of 10 ° C and 80 ° C for two important temperature data.

   condensation test method:

   condensation test can be completed in a climate box with condensation function. During the condensation test, due to the air flow, the test piece should be placed in the center of the test chamber, and the temperature control of the climate test chamber should be turned off. The temperature of the laboratory is increased by controlling the temperature of the water bath. The total temperature difference of the test chamber is less than that of the test chamber. The density of condensation film on the test piece depends on the relative humidity in the test room and the gradient of water bath temperature. Only distilled water is allowed for dewing test.

key word: How to maintain the high and low temperature test box Constant temperature and humidity box th-1000-b Programmable high and low temperature test chamber Small high and low temperature test chamber Hot and cold shock box Programmable constant temperature and humidity testing machine 80L high and low temperature test chamber Vertical high and low temperature test chamber Aisli high and low temperature test chamber Ultra low temperature test chamber equipment Table type constant temperature and humidity box Simulated transport vibration test Assembled walking into high and low temperature test room Programmable hygrothermal constant temperature and humidity test chamber Real picture of pct-35 high pressure cooking aging test box High frequency electromagnetic horizontal vibration test bench [Dezhou + nano photocatalyst + air purifier] The reason why the temperature of small high and low temperature test box is too slow Maintenance knowledge of low temperature test chamber 220 V High and low temperature test chamber Standard high and low temperature test chamber Large high and low temperature test chamber Walking in high and low temperature test temperature and humidity test room Walking in photovoltaic high and low temperature test chamber High and low temperature test equipment High and low temperature test box High and low temperature testing machine Hast-35 aging test chamber High and low temperature alternating test chamber for electronic components Graphene high and low temperature alternating test chamber Laser high and low temperature alternating test box Wholesale of high and low temperature test chambers Volume of high and low temperature test chamber Supply high and low temperature test chamber High low temperature low pressure test chamber Small volume high and low temperature test chamber Ranking of high and low temperature test chambers Professional high and low temperature shock test chamber High and low temperature test box supplier Customized high and low temperature impact test chamber Simulated high and low temperature test chamber Professional high and low temperature test chamber Manufacturer of high and low temperature test box Professional high and low temperature test box supply Low temperature high low temperature impact test chamber Three box high and low temperature impact test chamber Customized high and low temperature impact test chamber Professional manufacturer of high and low temperature test box Non calibrated high and low temperature test chamber Programmable constant temperature and humidity test chamber Customized manufacturer of high and low temperature impact test chamber Programmable high and low temperature test box manufacturer Maintenance of Hubei high and low temperature alternating test box Dongguan high and low temperature alternating test box equipment Shanghai high and low temperature alternating test box brand Maintenance of Shanghai high and low temperature alternating test box Principle of Shenzhen high and low temperature alternating test chamber Ranking of Sichuan high and low temperature alternating test chambers Sichuan high and low temperature alternating test box manufacturer Sichuan high and low temperature shock test chamber equipment Jiangsu high and low temperature impact test box brand Maintenance of Beijing high and low temperature shock test chamber Maintenance of Guangdong high and low temperature shock test chamber Principle of Shanghai high and low temperature shock test chamber Ranking of Sichuan high and low temperature impact test chambers Sichuan high and low temperature shock test box price Salt spray test chamber Video of high and low constant temperature and humidity test chamber Jiangsu high and low temperature cycle test box equipment Jiangsu high and low temperature cycle test box brand Maintenance of Shanghai high and low temperature circulation test chamber Maintenance of Shanghai high and low temperature circulation test chamber Principle of Shanghai high and low temperature cycle test chamber Ranking of Shanghai high and low temperature cycle test chambers Jiangsu high and low temperature test box price Walking in constant temperature and humidity laboratory Walking in constant temperature and humidity test chamber Walking in constant temperature and humidity laboratory Mobile high and low temperature impact test chamber Stainless steel high and low temperature impact test chamber Three chamber high and low temperature shock test chamber 1200 ℃ muffle furnace 1150 ℃ muffle furnace 1000L muffle furnace High and low temperature alternating cycle test chamber LED high and low temperature alternating humidity heat test box Bench type high and low temperature damp heat test chamber High and low temperature shock test chamber Electronic high and low temperature shock test chamber Aisli high and low temperature impact test chamber Ultraviolet radiation test chamber UV weathering test chamber UV aging test chamber How can high and low temperature test chamber not cool down? Which high and low temperature test chamber has good quality? Walking in high and low temperature test chamber -20 ℃ high and low temperature damp heat test chamber -10 ℃ high and low temperature damp heat test chamber High and low temperature humidity and heat test chamber for semiconductor chip宿州附近想过夜电话联系