Cold and hot shock testing laboratory

NegotiableUpdate on 02/02

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Nature of the Manufacturer: Producers

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Overview

Cold and hot shock testing laboratory

Product Details

The cold and hot shock test laboratory manufactured by Shenzhen Ruitaier Technology, also known as temperature shock test or high and low temperature shock test, alternately exposes the test samples to low and high temperature air (or suitable inert gas) to withstand the effects of rapid temperature changes. Used to determine the ability of components, equipment, and other products to withstand rapid changes in environmental temperature. It is used to assess the adaptability of products to rapid changes in ambient temperature, and is an indispensable test in equipment design and batch production stages. In some cases, it can also be used for environmental stress screening tests. It can be said that the frequency of application of cold and hot shock testing laboratories in verifying and improving the environmental adaptability of equipment is second only to vibration and high and low temperature tests.

【1】 Performance advantages of cold and hot shock testing laboratory:
1. Slope type fin tube evaporator can quickly achieve low-temperature effect;
2. Original imported Japanese made solenoid valves, drying filters, and other refrigeration components;
3. Internal spiral k-type refrigerant copper tube;
4. High speed electric heating tube;
5. Adopting original European and American imported high-efficiency compressors;
6. Equipped with automatic and manual defrosting circuits;
7. During high or low temperature impact, the maximum time can reach 9999 minutes and the maximum cycle period can reach 9999 times;
8. The system can perform automatic cyclic impact or manual selective impact, and can set the start of second or third zone impact and cold and hot impact;
9. The cooling system adopts a binary freezing system, which has a fast cooling effect and is water-cooled;
10. Adopting a color Chinese LCD touch control interface for easy operation;
11. The equipment is divided into three parts: high temperature zone, low temperature zone, and testing zone. The boxes in each zone adopt unique insulation structures;
12. The impact method uses style switching to import temperature into the testing area for conducting cold and hot impact tests.

【2】 Technical parameters of cold and hot shock testing laboratory:
1. Temperature range: High temperature chamber: RT~150 ℃ (unloaded); Low temperature box: RT~-20 ℃ (empty load);
2. Temperature fluctuation: ± 1 ℃;
3. Temperature error: ± 3 ℃;
4. Heating rate: from room temperature to 150 ℃ ≤ 25 minutes (average throughout the entire process);
5. Cooling rate: from room temperature to -20 ℃ ≤ 15 minutes (average throughout the entire process);
6. Low temperature limit temperature: ≤ -25 ℃;;
7. Impact temperature: 150 ℃~-20 ℃;
8. Load: ≤ 30kg;
9. Effective size of two box sample basket:
250×250×250mm(LP/2XCJ-100A)
400×400×450mm(LP/2XCJ-225A)
600×600×600mm(LP/2XCJ-500A)
800×800×750mm(LP/2XCJ-010A)
10. Temperature recovery time: ≤ 5 minutes;
11. Sample rack conversion time: ≤ 15s;
12. Power: 13KW/15KW/18KW/20KW.

【3】 Control system for cold and hot shock testing laboratory:
1. Control device: The main controller adopts the Korean imported "TEMI8226" dual circuit high-precision LCD display touch button temperature controller, programmable microcomputer PID control SSR output operation, large LCD color touch screen image, simple screen operation, and easy program editing;
2. Accuracy: 0.1 ℃ (display range);
3. Resolution: ± 0.1 ℃;
4. Refrigeration system and compressor: In order to ensure the cooling rate and minimum temperature requirements of the test chamber, this test chamber adopts a binary cascade air-cooled refrigeration system composed of an imported German semi closed compressor. The cascade refrigeration system consists of a high-temperature refrigeration cycle and a low-temperature refrigeration cycle, with the connecting container being an evaporative condenser. The evaporative condenser also plays a role in energy transfer, transferring the thermal energy inside the working chamber through a two-stage refrigeration system to achieve the goal of high temperature. The design of refrigeration systems applies energy regulation technology, which is an effective processing method that can ensure the normal operation of refrigeration units while effectively adjusting the energy consumption and cooling capacity of the refrigeration system, reducing the operating costs and failure rates of the refrigeration system to a more economical state;
5. Air conditioning method: Forced ventilation internal balance temperature control method (BTC). This method refers to the control system controlling the output of the heater based on the set temperature point through PID automatic calculation output under continuous operation of the refrigeration system, ultimately achieving a dynamic balance.

Summary: In temperature shock testing, the most crucial thing is to establish the stress caused by the inconsistent thermal expansion and contraction of different materials. The actual thermal shock is most likely to occur on the outside of the tested product. Relevant data indicates that it is not necessary to achieve temperature stability throughout the entire product, but as long as the temperature on the surface of the tested product is consistent with the test temperature. Although this opinion has some merit, it is also difficult to implement because it is impossible to install many sensors on the surface of the product. In addition, the heat transfer capacity of different parts of the product is inconsistent, and the heat capacity of adjacent components inside the tested product is also inconsistent, making it difficult to determine.

Shenzhen Ruitaier Technology provides one-stop comprehensive quality solutions for numerous industries and products with strong resource advantages and support in talent, technology, information, certification, testing, etc., enhancing the competitive advantage of enterprises and meeting their higher requirements for quality. We help enterprises overcome trade and technology barriers, reduce trade risks, and provide international market access for our products. We have a team of young, technically skilled, structurally sound, and dedicated technical personnel who are dedicated to innovation. We will wholeheartedly provide fair, fast, high-quality, and efficient technical services for export-oriented enterprises and traders.