New professional research cold and hot shock machine three box safety and energy saving quality inspection
The cold and hot impact test box, also known as the high and low temperature impact test box, is a kind of electronic and electrical components, automatic parts, communication components, auto parts, metal, chemical materials, plastic and other industries, national defense industry, aerospace, military industry Physical variants of BGA, PCB substrate, electronic chip IC, semiconductor ceramics and polymers to test the repeated resistance and tension of their materials to high cold variants and the chemical variants or physical injuries caused by products at low temperatures. From precision IC to heavy mechanical components, there are no necessary conceptual test tools to test the material structure or composite materials, Chemical variation or physical damage caused by extreme heat and low temperature in an instant.
Professional research on safety and energy saving of three boxes of cold and hot shock machine
Heating and air supply circulation system:
1. Multi wing centrifugal circulating fan is adopted, and the shaft is made of high and low temperature resistant rotating blade aluminum alloy to achieve forced convection;
2. High temperature/ambient temperature exposure fan: 3 ∨, 400W centrifugal; Low temperature exposure fan; 3 ∨, 400W centrifugal type;
3. Nickel chromium alloy electric wire heater;
4. Heater control mode: contactless equal cycle pulse width modulation, SSR (solid state relay)
Electrical automatic control system of constant temperature and humidity test chamber:
Including power supply part and automatic control part.
The power supply part automatically controls the power supply of the compressor, fan, electric heater, humidifier, etc. through the contactor, which is divided into temperature, control and fault protection parts: temperature and control are to compare the temperature of the return air with the temperature and humidity set by the user through the temperature and controller, automatically operate the compressor (cooling and dehumidification), humidifier, electric heating (heating) and other components, Realize automatic control of constant temperature and humidity.
7. Scheduled start setting, indication of expected end time of operation, accumulation of power on time, program end planning (program connection, turning to fixed value, shutdown, etc.).
8. Super large program capacity: 100 groups of programs, a total of 1000 pieces of memory.
9. Ultra long cycle setting: large cycle: 32000 times, partial cycle; 32000 times, memory and storage.
10. Setting of super long constant value time of constant temperature and humidity test chamber: 1 minute~999999 H 59 M setting.
The test chamber is equipped with imported temperature controller, which is controlled by P.I.D with high precision, so as to avoid unstable operation; For visual display and control, the defect of original temperature contrast is abandoned
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New professional research cold and hot shock machine three box safety and energy saving quality inspection
![](https://img46.gkzhan.com/9/20240328/638472196217012568518.webp)
Temperature: 0.1 ℃ (display range)
Temperature: 5 ℃~+35 ℃ (average temperature within 24 hours ≤ 28 ℃);
Relative: ≤ 85% RH;
Air pressure: 86kPa~106kPa;
Power supply condition: three-phase four wire+protective ground wire, voltage range: AC (380 ± 38) V;
Allowable fluctuation range of frequency: (50 ± 0.5) Hz;
The grounding resistance of protective ground wire is less than 4 Ω;
The user is required to configure air or power switch of corresponding capacity for the equipment at the installation site, and the switch must be used independently for the equipment;
Water supply conditions: purified water is required for equipment humidification.
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