The explosion-proof two box thermal shock test box, with its characteristics of "high efficiency, precision, and high adaptability", has become a key equipment for verifying the environmental reliability of products in the industrial field. Especially in the electronic, automotive, and military industries that require high "temperature change rate", it is the core testing tool for "checking and filling gaps" before products leave the factory.
The core purpose of the two box thermal shock test chamber is to evaluate the reliability and stability of products in rapidly changing temperature environments, that is, to expose potential defects caused by "thermal expansion and contraction" or "material compatibility" by simulating the instantaneous switching of "high temperature and low temperature". The specific application areas are as follows:
Electronic and electrical industry (core application areas)
Test objects: chips, circuit boards (PCBs), sensors, connectors, batteries, display screens, etc.
Test purpose: To verify the performance stability of electronic components under temperature shock. For example, low temperatures may cause solder joint cracking and capacitor leakage, high temperatures may cause insulation layer aging, and repeated shocks can expose "temperature fatigue" problems in advance, avoiding product failures in actual use (such as day night temperature differences in outdoor equipment and temperature changes in automotive electronic cabins).
automotive industry
Test objects: automotive electronics (ECU controller, headlights, radar), engine components (sensors, seals), interior parts (dashboard, plastic parts), power battery pack.
Test objective: To simulate the usage scenarios of a car in an environment, such as entering a low-temperature garage after exposure to sunlight in summer (high temperature and low temperature impact), driving to a high-temperature road section after cold start in winter (low temperature and high temperature impact), and verifying whether components undergo structural deformation or functional failure (such as fogging of car lights, interruption of ECU signals, and battery capacity degradation).
Materials and Chemical Industry
Test objects: plastics, rubber, metal alloys, coatings, adhesives, etc.
Test purpose: To evaluate the "temperature tolerance" and "structural stability" of materials, such as whether plastic parts crack or discolor under repeated temperature changes, whether adhesives peel off, and whether metal materials undergo stress corrosion, providing data support for material selection (such as outdoor building materials and industrial pipelines).
Explosion proof two box thermal shock test boxCore product features
The design core of the two box thermal shock test chamber is to solve the contradiction between "rapid temperature change" and "stable temperature control", while also considering testing efficiency and sample protection. Its main features can be divided into four categories: structural design, temperature control performance, operation and safety, and applicable scenario adaptation:
Dual box independent design, high impact efficiency
Clear zoning: The equipment is divided into independent "high temperature zone" (storing high temperature medium) and "low temperature zone" (storing low temperature medium), with a sample transfer mechanism (such as pneumatic/electric guide rails, hanging baskets) in between to achieve rapid switching of samples between the two zones, without relying on the intermediate transition zone like the "three box" equipment, greatly reducing the temperature change time.
Media reuse: Maintain a constant temperature in both high and low temperature zones (such as keeping the high temperature zone at 150 ℃ for a long time and the low temperature zone at -40 ℃ for a long time). When switching samples, directly contact the preset temperature zone to avoid energy loss from repeated heating/cooling. The testing efficiency is 30% -50% higher than that of single box equipment.
Intelligent operation, secure protection*
Automated control: equipped with PLC or touch screen control system, supporting preset testing programs (such as impact frequency, high and low temperature dwell time, cycle period), can automatically complete the cycle of "high temperature dwell transfer low temperature dwell transfer" without manual intervention, reducing operational errors.
Multiple security protections:
Temperature protection: Over temperature alarm in high and low temperature areas (such as automatic power-off in high temperature areas and overpressure protection in low temperature areas);
Mechanical protection: Sample transfer mechanism stuck alarm, door not tightly closed and locked;
System protection: Overload protection for refrigeration system, high temperature protection for compressor, water/fluorine shortage alarm to prevent equipment damage or sample burning.
Strong adaptability to meet diverse needs
Flexible sample volume: From small desktop computers (with a sample chamber capacity of 10L, suitable for electronic components) to large floor standing machines (with a sample chamber capacity of over 500L, suitable for complete machines and automotive components), customized according to sample size.
Compatible with multiple testing standards: Compliant with internationally recognized reliability testing standards such as MIL-STD-883H (semiconductor devices), IEC 60068-2-14 (environmental testing), GB/T 2423.22 (Chinese national standard), etc., meeting the compliance requirements of industries such as automotive, electronics, aerospace, etc.
