CHINA three box type thermal shock Tester NBC-LRCJ-50L -40 ℃

Overview  

This series of thermal shock testing machine is mainly used to test the resistance of materials to extremely high or low temperature. This situation is similar to the situation of discontinuous high or low temperature. The thermal shock test can make various items in the shortest time. Complete the test within time. Changes or physical damage in thermal shocks are caused by changes in thermal expansion and contraction or changes in other physical values. Only by using the PID system can various products be fully trusted. The effects of thermal shock include the electrochemical changes caused by cracking or layer breaking and displacement of the finished product. The full digital element automatic control of the PID system will make your operation easy.

Application of thermal shock testing machine

Thermal shock testing machine is widely used in electronic and electrical components, automation components, communication components, auto parts, metals, chemical materials, plastics and other industries, defense industry, aerospace, military industry, BGA, PCB base plate, electronic chip IC, Changes in the physical properties of semiconductor ceramics and polymer materials, testing the repeated resistance of the materials to high-low temperature and the chemical changes or physical damage of the products in thermal expansion and contraction can confirm the quality of the products, from precision ICs to heavy Mechanical components can be used as the basis or reference for product improvement.

Execution and meeting standards

1. GB/T2423.1-2001 low temperature test method;

2. GB/T2423.2-2001;

3. GB/T2423.22-1989 temperature change test N;

4. National military standard GJB150.3-86;

5. National military standard GJB150.4-86;

6. National military standard GJB150.5-86;

7. GJB150.5-86 temperature shock test;

8. GJB360.7-87 temperature shock test;

9. GJB367.2-87 405 temperature shock test;

10. SJ/T10187-91Y73 series temperature change Test Chamber - one box type;

11. SJ/T10186-91Y73 series temperature change test box - two box type;

12. Standards IEC68-2-14_test method N_temperature change;

13. GB/T 2424.13-2002 test method temperature change test guideline;

14. GB/T 2423.22-2002 temperature change;

15 QC/T17-92 General rules for weather resistance test of auto parts;

16. Environmental Impact Assessment of Electrical Connectors and Receptacles for EIA 364-32 Thermal Shock (Temperature Cycling) Test Procedure.

Cooling System

1. Working method : Three-Chamber, product static test method

2. Condensation method : air-cooled effective power-saving ultra-low temperature refrigeration system (air-cooled heat dissipation method)

3. Refrigeration compressor : French Taikang high-horsepower mechanical compressor

4. Evaporator : finned heat exchanger (also used as dehumidifier)

5. Throttling device : electronic expansion valve

6. Evaporation condenser : brazed plate heat exchanger

7. Refrigerator control mode

• The control system automatically adjusts the refrigerator to run better according to the test conditions

• Energy saving condition

• Compressor return air cooling circuit

• energy regulation loop

8. Digital display of refrigeration system working condition

• evaporating pressure regulator

• The controller digitally displays the high-low pressures of the refrigeration system, the discharge temperature and the operating current of the compressor

  
  

9. Refrigerant: R404a / R23 (ozone depletion index is 0)

10. Others: The main components are all international famous brand products

Heating system

Heater: Nickel-chromium alloy electric heating wire heater; heater control method: non-contact equal-period pulse width modulation, SSR (solid state relay)

electrical control system

Controller model: Korea TIMI8226

This product uses computer technology and excellent PID control method to measure and control the ambient temperature, and can be used in conjunction with thermal shock test equipment.

★Intuitive and clear display and control interface, light-touch selection menu, easy to use, stable and reliable performance.

★Effective, flexible program control, bringing users a high-end product with stable performance, flexible control, and high cost performance.

★ Program editing: divided into three types of programs, respectively 2ZONE, 3ZONE, STEP

• The first type is 2ZONE, which can edit 120 programs, and each program has only 2 segments

• The second category is 3ZONE, which can edit 120 programs, and each program has only 3 segments

• The third category is STEP, 120 programs can be edited, and each program can have up to 20 segments

Setting range: program can be linked (link program serial number can be selected)

Temperature: Adjust according to the temperature working range of the equipment (upper limit +5°C, lower limit -5°C)

Display resolution: temperature 0.01℃; time 0.01min

Input: Thermocouple

Communication function (optional): RS-232 converter

Curve recording function: it has RAM with battery protection, which can save the set value, sampling value and sampling time of the device; the maximum recording time is 350 days (when the sampling period is 1.5min)

1) Door: hinged door, the door hinge is on the left side of the box (when facing the front of the box), and the door is equipped with electric heat distribution (automatic adjustment) and an anti-frost and anti-condensation hollow glass observation window (W210×H320mm);

The door frame is equipped with electric heating (automatic adjustment) anti-frost and anti-condensation devices; the door is equipped with interior lighting (effective and long-lasting LED light source)

2) Control panel: controller display screen, operation buttons, over-temperature protection setting device

3) Mechanical room machine: The mechanical room includes refrigeration units, drainage devices, fans, and power distribution control cabinets

4) Power distribution control cabinet : cooling fan, buzzer, power distribution board

safety device

refrigeration system

• Compressor high-low pressure overpressure protection

• Compressor motor overheat protection

• Compressor motor overcurrent protection

• Refrigerated oil hydraulic mirror

• Refrigerant high-low pressure gauge

Test Chamber

• Adjustable over-temperature protection

• Test space temperature fuse

• Air conditioning channel limit over temperature

• Fan motor overheating

• Air pressure balance device inside and outside the box

• Box door open (running) prompt alarm

other configuration

1) Power cable: 1 five-core (four-core cable + protective ground wire) cable (6 meters long)

2) Sample power control terminal

• General power leakage circuit breaker
  

• Relay contact control, within AC380V, 20A (when in normal operation, the contact is closed;

• When the equipment stops or fails, the contact opens)

• It is strongly recommended that the user use this control terminal to control the power on and off of the test sample to ensure

• The circuit connected to the test sample is reliably cut off when the equipment fails or shuts down

3) Information: provide Chinese version of the user manual and technical information

4) Transportation: The main structure of the test box is integral

5) Conditions of use :The user guarantees the following conditions

6) Venue

• The ground is flat and well ventilated, free of flammable, explosive and corrosive gases and dust
  

• There is no strong electromagnetic radiation source nearby

• There is a floor drain near the equipment (within 2 meters from the refrigeration unit)

• Ground bearing capacity of the site: not less than 800kg/m2 Appropriate maintenance space is left around the equipment

7) Environmental conditions

• Temperature: +5℃～+35℃

• Relative Humidity: ≤ 85%RH

• Air pressure: 86kPa～106kPa

8) Power supply

• AC(380±10)V (50±0.5)Hz three-phase four-wire + protection ground

• The grounding resistance of the protective ground wire is less than 4Ω; TN-S power supply or TT power supply

• The user is required to configure an air or power switch of corresponding capacity for the equipment at the installation site, and this switch needs to be independent and dedicated to the use of this equipment

9) Power capacity: 21kw

10) Requirements for storage environment

• When the equipment is not working, the ambient temperature should be kept within 0~+45°C (no freezing)

• When the ambient temperature is lower than 0°C, the water retained in the equipment should be drained to prevent the pipeline from

• Water inside freezes and damages pipes

Complete-built unit x1, manual x1, certificate of conformity

[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.