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Rapid temperature change test
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Wireless Communication
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Wireless Communication
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Children's toy testing
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Wireless Communication
Electromagnetic compatibility
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Electronic appliances
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Children's toy testing
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Electromagnetic compatibility
Automotive Electronics
Automotive Parts Inspection
Electronic appliances
Chemical Testing
Electronic Cigarette Testing
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Electromagnetic compatibility
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Automotive Parts Inspection
Electronic appliances
Chemical Testing
Electronic Cigarette Testing
Reliability testing
Battery Testing
Lamp Inspection
Children's toy testing
China Certification
Asia Certification
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North American Certification
Middle East Certification
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TRAINING
Services
返回Testing Services
- EU RED Network Security Standard EN 18031
- Wireless and communication detection
- Mobile communication product certification
- Bluetooth BQB Product Certification
- FM/AM Product Certification
- WiFi Product Certification
- Wireless charging product certification
- Interphone product certification
- Base station certification
- SAR testing
- Receiver Product Certification
- 5G NR Product Certification
- UWB Product Certification
- Internet of Things authentication
- Electrical performance testing
- EMS testing - radiation anti-interference testing system (including radar waves)
- EMS Testing - Electrostatic Discharge
- EMS Test - Transient Conducted Immunity Test
- EMS Testing - Portable Transmitter Immunity
- EMS Test - High Current Injection (BCI) Test
- EMS test - low-frequency magnetic field anti-interference test
- EMI Testing - Transient Conducted Emissions Testing System
- EMI testing - low-frequency magnetic field emission
- EMI Test - Radiation Emission Test
- EMI Test - Conducted Emissions Test
- Automotive Electronic Testing
- Automotive ELV&VOC
- Reliability testing
- Temperature shock test
- Vibration testing
- Temperature shock/cold and hot shock test
- Instrument panel/instrument panel three comprehensive vibration test
- Comprehensive vibration test of door inner panel III
- Sunvisor Three Comprehensive Vibration Test
- Spoiler Three Comprehensive Vibration Test
- Three comprehensive vibration tests of car front and rear bumpers
- Three comprehensive vibration tests for lamp housing/lampshade
- Comprehensive vibration test of outer circumference three
- Automotive metal material testing
- Performance testing of automotive lighting fixtures
- Rapid temperature change test
- Vibration
- Common issues with vibration testing
- Common issues with fatigue testing
- Common issues with high and low temperature testing
- Conducted Interference (CE) - Suzhou Lixun Standard
- Conducted Immunity Test (CS) - Suzhou LCS Standard
- Electromagnetic Radiation Tolerance Test (RS) - Suzhou LCS Standard
- Electrical Fast Pulse Withstand Test (EFT) - Suzhou LCS Standard
- Voltage flicker test - Suzhou LCS standard
- Introduction to PFAS Testing
- MOSH/MOAH Mineral Oil Testing Service
- MOSH/MOAH Mineral Oil Testing and Certification Report Service
- Automotive ELV&VOC
- Consumer Product Testing Services - WEEE Chapter
- Consumer Product Testing Services - CA 65
- Consumer Product Testing Services - SDS Section
- Consumer Product Testing Services - TSCA Section
- Consumer Product Testing Services - CPSIA Section
- Consumer Product Testing Services - POPs Section
- Consumer Product Testing Services - REACH Restricted Substances Section
- Consumer Product Testing Services - REACH SVHC Section
- Consumer Product Testing Services - RoHS Chapter
- Ecological textile testing
- Leather Footwear Inspection
- Food contact material testing
- Testing of toys and baby products
- Hazardous substance testing
- Other tests - pencil hardness test
- Other tests - Alcohol abrasion test
- Other tests -100 grid test
- Other tests - Paper tape wear test
- Other inspections - bending tests
- Other tests - tensile testing
- Other tests - Drum drop test
- Other tests - Voltage withstand test
- Mechanical testing - Packaging compression test
- Mechanical testing - Drop test
- Mechanical inspection - mechanical shock test
- Mechanical testing - Three comprehensive vibration tests
- Mechanical testing - Vibration testing
- Climate environment testing - Xenon lamp aging test
- Climatic environment testing - UV ultraviolet test
- Climate Environmental Testing - Low Pressure Test
- Climatic environment testing - IP level (waterproof and dustproof test)
- Climatic Environmental Testing - Salt Spray Test
- Climatic Environmental Testing - Walkthrough Temperature Test
- Climatic environment test - cold and hot shock test
- Climate environment testing - rapid temperature change test
- Climatic environmental testing - alternating damp heat test
- Climate environment testing - Temperature cycling test
- Climatic Environmental Testing - High Temperature Testing
- Climatic Environmental Testing - Low Temperature Testing
- Reliability testing
- Inspection of ship lighting fixtures
- COI Index Test for Medical Indoor Lighting
- Lamp safety inspection
- Luminaire energy efficiency testing
- EMC testing of lighting fixtures
- Integral Ball Laboratory
- Photobiology Experiment
- Light distribution test
- Lamp aging test
- Lamp IP waterproof
- Lamp performance testing
- Lamp reliability testing
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Climatic environment test - cold and hot shock test
Test the project
Hot and cold shock test
Reference standards
GB/T 2423.22-2012 IEC 60068-2-14-2009
Range of competence
Temperature range: -40°C~150°C (two-box type);
600×500×500mm。 High and low temperature conversion time: ≦10S
Cold and hot shock tests, also known as temperature shock tests or high and low temperature shock tests, are used to assess the adaptability of products to rapid changes in ambient temperature. They are essential tests in equipment design and batch production stages, and can also be used for environmental stress screening tests in some cases. It can be said that the frequency of application of cold and hot shock test chambers in verifying and improving the environmental adaptability of equipment is second only to vibration and high and low temperature tests.
Purpose of Thermal Shock Test
Verify the condition of the sample during use and storage under rapidly changing conditions of high and low temperatures.
Principle of Thermal Shock Test
When the temperature changes sharply, alternating stress is caused by thermal expansion and contraction effects, resulting in material cracking, poor contact, and performance changes.
Method for Thermal Shock Test
Before the experiment, the mechanical properties (appearance and internal structure) and electrical properties of the test sample should be checked to ensure that the mechanical and electrical properties of the sample are normal.
Arrange the samples reasonably in the cold and hot shock chamber, leaving sufficient space between the sample and the four walls of the temperature chamber for air circulation. Select the cold and hot shock test conditions according to standard specifications.
Select the hot and cold shock test starting from high temperature, and press the start button to initiate the hot and cold shock test. The experiment will automatically stop after the set number of cycles.
After the experiment is completed, remove the sample from the cold and hot shock chamber and allow it to recover at room temperature until the sample temperature stabilizes. Observe the samples after the experiment for any mechanical damage (such as surface warping, cracking, loose components, detachment, etc.) and check for any abnormalities in electrical performance.
If the mechanical damage or electrical performance indicators of the sample mentioned above do not meet the relevant specifications, it is considered that the sample is also damaged, and a detailed test record form should be filled out.
Analyze the weak links exposed in the experiment and propose improvement measures. Repair or improve the sample. If there is no damage, increase the temperature shock level and continue testing according to the standard temperature shock test conditions, using ordinary components made of board grade or surface mounted components made of board grade, until the sample is damaged.
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