Who knows what the specification requirements are for the high and low temperature test chamber

The high and low temperature test chamber is a test equipment used to test the heat, cold and dry resistance of various materials, such as: electronics, electrical appliances, communications, instruments, vehicles, plastic products, metals, food, chemicals, building materials, medical, aerospace and other products, and is used as a standard for product quality inspection and research and development. With the development of China's industrialization, the demand for high and low temperature test chambers is also increasing, and there are more and more manufacturers in the industry, but some of the rules are becoming more and more standardized.

In the 80s to 90s of the twentieth century, due to the beginning of China's environmental test, the test chamber products are in short supply, and the acceptance rules for high and low temperature test chambers and other products can be used.

But for the current market situation, it is no longer a seller's market, so the rules are also regulated a lot:

1. Before the acceptance of the test chamber, it is generally necessary to pay 30 50% of the cost of the machine;

2. The acceptance period is generally one week and one month;

3. During the acceptance period, the normal operation of the machine is stipulated, and if there is a failure caused by the internal problems of the machine, the acceptance period will be extended;

4. After the acceptance is completed, pay all the cost or 90% of the cost of the machine;

The brief operation of the high and low temperature test chamber is clarified

1. When the low temperature work is completed, the best temperature is 60 °C, and then open the tailgate after about 30 minutes of boring treatment, so as to avoid the phenomenon of freezing of the air conditioner evaporator at the measurement time of the subsequent test

2. Unless it is necessary to open the tail door in the actual operation of the high and low temperature test chamber, please do not open the tailgate casually, otherwise it can produce the following adverse effects:

1) The moisture in the body at high temperature breaks through the box;

2) The inside of the door is still at a high temperature;

3) The high-temperature gas can turn on the fire accident alarm and cause errors;

4) During the test, the power switch housing is related to the refrigeration compressor and there is a certain amount of damage, unless it is a test begging, otherwise the customer is not considered, and the power switch is constantly switched on in the process of the test;

3. When applying the high and low temperature test chamber, it must be a safe and appropriate grounding device to avoid tip discharge;

4. Power circuit isolation switch and overheat protection device, which provide test products and maintenance configuration for the life safety of operators, must be carried out on schedule to carry out actual inquiries;

5. The direction of the equipment of the dry bulb temperature sand cloth must be in order to take the kinetic energy and bury the bucket properly about the ambient humidity;

6. During the work of the box, do not check it by hand to avoid the risk of electric shock accidents that may be injured by the electric fan;

7. Non-Ben Bisui machine staff can not repair and check the equipment, and when viewing, in addition to full-time personnel, there must be professional electricians and circuit inspectors to prevent uninformed personnel from energizing and closing, and then forming the risk of electric shock;

The commonly used temperature control range of Ruikai high and low temperature landing test chamber is -40 to +150, but because the test requirements of each product are different, the temperature control range selection is different, some are -70 to +150, some are -60 to +150, and some are -20 to +150, which should be determined according to the test range required by the product. In case of high temperatures, there are 200 degrees Celsius, 300 degrees Celsius, etc.

With the improvement of living standards, people are becoming more and more picky about the appearance of items, especially the various test chambers in the R&D laboratory, and the quality of the external dust cleaning devices directly reflects the strength and attention to detail of a manufacturer. Thus indirectly reflecting the production profile and service quality of a manufacturer. It is more likely to directly affect the results of the experiment.

Now let's introduce the appearance requirements of the high-temperature test chamber.

Brother You 1The inner wall of the test chamber should be made of materials that are resistant to heat and oxidation, corrosion and have certain mechanical strength, and there should be no pollution sources that affect the experiment.

2.The insulation material should be able to withstand high temperatures and have flame retardant properties;

3.The thickness of the insulation layer should ensure that the temperature of the easily accessible part outside the test chamber is not higher than 35 degrees Celsius of the ambient temperature;

4.The heating device should not constitute direct radiation to the sample;

5.The sealing of the door is good, and the sealing strip should have high temperature resistance and be easy to replace;

6.There should be a sample holder to prevent or hang the test product, and the sample holder should have good heat resistance, not easy to oxidize and corrosion resistance;

7.The appearance coating should be smooth and uniform, and there should be no traces of extremely uncoordinated color, bubbles, delamination or abrasions;

8.If the product appearance has applied for a patent. It can be selected when purchasing equipment.