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Guangdong Haotian Testing Instrument Co., Ltd
Long life three box thermal shock test chamber
NegotiableUpdate on 05/07
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Overview
The long-life three box thermal shock test chamber is a reliability testing equipment used to simulate temperature changing environments, widely used in fields such as electronics, automotive, aerospace, etc.
Product Details
Long life three box thermal shock test chamber
1、 Core structure and working principle
This device adoptsThree box independent chamber structureIt consists of a high-temperature chamber, a low-temperature chamber, and a testing chamber. The core of the experiment lies inThe sample remains stationaryThe design concept is to fix the sample in the testing box throughout the entire process. By quickly switching between precision pneumatic valves, the clean airflow of the high or low temperature box is controlled to be directly injected into the testing box, thereby achieving rapid temperature rise and fall in the testing area in a very short time, and achieving the purpose of rapid thermal shock testing.
2、 Box material and thermal insulation performance
The equipment casing is constructed entirely of stainless steel, with both the outer and inner boxes selectedSUS # 304 stainless steel plateDurable and corrosion-resistant. The insulation system adoptsRigid polyurethane foam and glass fiberComposite insulation layer, high density, strong compression resistance, insulation effectGoodThe door of the box is also filled with high-density rigid polyurethane foam to ensure the sealing performance of the box, prevent the loss of cold energy and heat penetration, and ensure the stability of the test environment.
3、 Refrigeration and Heating System
refrigeration system
The refrigeration cycle adoptsEfficient binary stacked mechanical compression refrigeration technologyThe core components are equipped with original French Taikang brand compressors. The system uses R404A and R23 environmentally friendly refrigerants, and achieves stable and efficient production in low-temperature environments through the coordinated operation of precision components such as evaporators, condensers, and throttling devices, meeting environmental requirements and energy-saving standards.
heating system
The heating unit adoptsNickel chromium alloy heating wireAs the core heating element, combined with contactless periodic pulse width modulation technologySSR Solid State RelayPerform precise control. The system has fast response speed, high temperature control linearity, and can achieve precise digital adjustment of the heating process, ensuring that the temperature in the high-temperature chamber reaches the set value quickly and stably.
Long life three box thermal shock test chamber
4、 Technical performance parameters
temperature rangeHigh temperature chamber can achieve+60 ℃ to+150 ℃The low-temperature chamber can be covered-60 ℃ to -10 ℃.
temperature accuracyTemperature fluctuation is controlled within±0.5℃Within, temperature deviation is controlled within±2.0℃Within. Based on a 5KG plastic load, the temperature recovery time is only required3-5 minutes.
temperature change rateHeating from+60 ℃ to+180 ℃ takes no more than30 MinutesCooling from+20 ℃ to -70 ℃ takes no more than90 Minutes.
5、 Intelligent electrical control system
Equipment equippedOriginal color touch screen microcomputerLarge LCD display with support for switching between Chinese and English interfaces, intuitive and convenient operation logic, and clear information display. The program storage capacity can reach1000 setsSingle program support3 stepsSet, each program can loop2000 timesThe total cycle setting is as high as9999 timesAt the same time, equipped withRS-232 communication interfaceSupport connection with computers to achieve real-time recording, storage, and remote control of experimental data, facilitating laboratory data management.
6、 Multiple safety protection devices
To ensure the safety of equipment and personnel, the system integrates comprehensive security protection mechanisms. Including: compressorsOverpressure, overheating, overcurrent protectionThe main power supplyPhase sequence and phase loss protection；Residual Current Circuit BreakerAnd the high and low temperature chambersIndependent over temperature protection switchWait. Multiple protections are mutually redundant, effectively preventing equipment failures and eliminating safety hazards.
7、 Core product features
Efficient testingThe high and low temperature chambers can independently perform pre temperature and pre cooling operations without waiting for the previous process to be completed, significantly improving overall testing efficiency.
Stable temperature controlDue to the fixed nature of the sample, the testing chamber is only responsible for air flow switching, fundamentally avoiding temperature fluctuations and mechanical impacts caused by sample movement, ensuring accurate test results.
Protecting samplesNo need to frequently transfer samples between high and low temperature chambers, especially suitable for precision, fragile or vibration sensitive products, effectively protecting samples from additional damage during testing.
