1PCTCore features of high-voltage aging chamber

1. Accurate environmental simulation capability

PCTThe high-pressure aging chamber is integrated with a microcomputerPIDThe control system and platinum resistance temperature sensor can achieve precise control of temperature, humidity, and pressure. Temperature range coverage100℃-132℃Some models support expansion to147℃The pressure control accuracy reaches±0.01kg/cm²Maintain humidity at all times100%RHSaturated steam environment. This environmental simulation capability can realistically reproduce electronic componentsextremeStress state under usage conditions.

2. Security protection system

The equipment adopts a dual safety design: on the physical level, it is equipped with a circular test slot and a safety door buckle structure. When the pressure inside the box exceeds the safety threshold, the back pressure mechanism automatically locks the door body; At the electrical level, it integrates overpressure automatic exhaust, over temperature power-off protection, anti dry burning detection, and access control locking system. Some models are equipped with manual emergency relief valves, which can achieve3Release pressure within seconds.

3. intelligent control system

adopt7Inch true color touch screen orLEDDigital controller, supporting250Group program12500Segment parameter settings, equipped withUSBData export andRS-485Communication interface. Temperature control accuracy reaches±0.5℃Pressure display resolution0.1kg/cm²Real time monitoring and recording of key parameter change curves during the experimental process.

4. Structural optimization design

The inner liner adoptsSUS316Stainless steel material, surface polished, with improved corrosion resistance compared to traditional materials3Twice. The circular arc design effectively prevents condensation droplets from falling and avoids uneven heating of the sample. The outer box is made of anti-static sprayed steel plate and equipped with a double-layer stainless steel product rack, which supports customized modification to adapt to samples of different sizes.

2、 Systematic maintenance plan

1. Daily operation standards

Pre test inspectionBefore each start-up, it is necessary to confirm that the water level is above the safety scale line, and check the oil level of the vacuum pump and the status of the drain valve. Use standard test blocks for temperature uniformity verification to ensure temperature difference inside the box≤±1.5℃.

Sample placement specifications: Use specialized fixtures to fix the samples and maintain spacing≥5cmFor samples containing sensitive components, special signal terminals should be used for electrical connection to avoid loose wiring and abnormal data.

Operation monitoring: Record the measured temperature and pressure values every hour during the experiment, and observe the working status of the steam generator. When the pressure fluctuation exceeds±0.1kg/cm²Immediately stop the machine for troubleshooting.

2. Periodic maintenance plan

Weekly maintenance: Clean the condenser fins and check for blockages in the vacuum pump filter element. Lubricate and maintain the silicone gasket of the door seal to extend its service life.

Monthly maintenance: Conduct saturated steam quality testing and verify the humidity inside the box using standard humidity sensors. Calibrate pressure sensor, error exceeds±0.05kg/cm²Adjustments are needed.

Quarterly maintenance: Replace vacuum pump oil and clean water system. Perform insulation testing on the heating tube, with a resistance value lower than2MΩIt needs to be replaced.

3. Emergency handling of faults

Abnormal pressure: When the pressure continues to rise to2.8kg/cm²When the relative pressure is reached, the system automatically starts the three-level pressure relief program. The operator should immediately cut off the power and check if the safety valve is stuck.

Temperature out of control: After triggering the over temperature alarm, wait for the temperature inside the box to drop to50℃The door can only be opened as follows. Check if the solid-state relay is broken down and replace the control board if necessary.

Decreased steam quality: If liquid is found in the steam, it is necessary to clean the scale of the steam generator and check the sealing of the float valve. It is recommended to2000Perform descaling treatment every hour.

3、 Maintain the effectiveness evaluation system

Performance indicator monitoring: Monthly statistics of temperature fluctuation rate, pressure stability, and steam saturation data, drawing control charts to analyze equipment attenuation trends.

Preventive maintenance: Establish a spare parts inventory model based on historical fault data, and implement status monitoring of vulnerable parts such as heating tubes and vacuum pumps.

Certification maintenance: entrusted to a third-party organization annuallyGB/T 10586-2006Standard compliance testing ensures that equipment continuously meets testing requirements in military, automotive electronics, and other fields.

By implementing the above maintenance plan, it is possible toPCTThe service life of the high-voltage aging chamber has been extended to10Over years, the repeatability of experimental data is maintained at98%The above. Practice in a semiconductor company shows that systematic maintenance reduces equipment failure rates72%Reduce annual maintenance costs35%Effectively ensuring the continuity of product reliability testing.