The company s thermal shock test chamber is broken, where can it be repaired?

The thermal shock test chamber is a relatively large equipment, and it is more difficult to maintain, so choose the manufacturer for maintenance, try to choose the manufacturer, and it is best to choose the original manufacturer, so that it will be more convenient, and the cost will be reduced a lot.

1. Dust sticking to the condenser will cause the high-voltage switch of the compressor to jump out and produce a false alarm, therefore, the dust attached to the condenser heat dissipation mesh can be sucked off with a vacuum cleaner every month, or a hard brush is used after start-up, or the dust is blown clean with a high-pressure nozzle;

2. The ground around the fuselage and at the bottom should be kept clean at all times to avoid a large amount of dust from being sucked into the unit and causing accidents or reducing the performance of the equipment;

3. When opening and closing the door or taking the sample from the test chamber, do not make it contact the sealing strip on the door;

4. Check the core of the test chamber - the refrigeration system once a year, check whether the copper pipe is leaking, and whether each joint and interface is responsible for leakage, if so, please notify the manufacturer;

5. The humidifier and water tank of the cold and thermal shock test chamber should be cleaned frequently to avoid scale and affect the emission of steam. Use a copper brush to scrub when washing, then clean with water;

6. The power distribution room should be cleaned and overhauled more than once a year, and the loose dust of the node will put the whole equipment in a dangerous working state, which will burn out the components, and cause fire, alarm and personal safety at worst;

7. Check the wet and dry bulb gauze frequently, and replace it in time when the gauze becomes hard or not clean, and it is recommended to replace it once every 3 months;

8. The water pipe of the waterway is a device that is easy to block and leak, and it is necessary to regularly check whether there is any leakage and water blockage, and eliminate or notify the manufacturer in time;

9. The water storage in the humidifier should be replaced once a month to ensure that the water quality is clean and the water flow is smooth;

10. When the test product time arrives, the product must be taken in the shutdown state and the staff must wear dry, electricity-proof and moisture-resistant gloves to pick up and place the product.

The thermal shock test chamber is a necessary testing equipment for metal, plastic, rubber, electronics and other material industries, which is used to test the material structure or composite materials, which can be endured in an instantaneous continuous environment of extremely high temperature and extremely low temperature, so as to detect the chemical changes or physical injuries caused by thermal expansion and contraction of the test sample in the shortest time.

Control device: the controller adopts imported programmable PLC and high-quality imported LCD color LCD touch screen double-loop temperature control system, and its control display adopts imported color LCD touch screen (inch) control display The controller adopts Chinese operation display interface display, which can display and set test parameters, curves, total running time, total running time, heater working status and calendar time. The compilation of the control program adopts the human-machine dialogue mode, the interface is friendly, and the automatic operation function of the refrigerator can be realized only by setting the temperature.

The control system uses an intelligent control software system, with automatic combination of refrigeration, heating and other subsystems of the working conditions, so as to ensure high-precision control in the entire temperature range, while achieving the purpose of energy saving and consumption reduction, the perfect detection device can automatically carry out detailed fault display, alarm, such as when the test chamber is abnormal, the controller displays the fault status in Chinese characters, and has the storage function of historical data table trend chart and historical fault record.

It can be caused by many aspects, and the first thing to do is to find out the cause before we can find a solution

1.If it is used for too long, three or five years, lack of hair maintenance, it will inevitably lead to the situation that the cold and thermal shock test chamber is not refrigerated.

2.First, observe the change in temperature, whether the temperature drops very slowly, or whether the temperature tends to rise after the temperature reaches a certain value. Another reason for the failure of the equipment may be due to the ambient temperature is not up to standard, the manufacturer recommends that the best temperature is 5-28 degrees (the average temperature in 24 hours is about 24 degrees), and the humidity is about 95%.

3.If the detection temperature deviation requires the sample to be placed in the workshop, when the sample volume is too large, or the way or position is inappropriate, the air convection is blocked. It can also lead to large temperature deviations.

The tightness of the box is not good. For example, the door leaks, which affects the temperature uniformity of the equipment studio.

4.Check the refrigeration system. First of all, check that the exhaust and suction pressures of the cryogenic compressors of the two groups of refrigeration units are lower than the normal values, and the suction pressure is in a state of evacuation, indicating that the refrigeration dose of the main refrigeration unit is insufficient, and the refrigerant needs to be increased.

If the temperature of the exhaust line and suction line of the compressor is not high, the temperature of the suction line is not low (not frosted), which also indicates the lack of refrigerant, and it is necessary to contact the manufacturer to fill the refrigerant.

In recent years, the rapid development of the thermal shock test chamber has brought safety to people in the use of products, so many manufacturers have slowly come into contact with the test chamber, but as long as the equipment will have a failure, what we have to do is to maintain the equipment to reduce the incidence of failure.

Common faults and treatment methods of thermal shock test chamber:

1. When the temperature of the test chamber does not reach the test temperature value, we need to check whether there is a problem with the electrical control system.

2. When the temperature of the thermal shock test chamber rises very slowly, the air circulation system of the chamber should be carefully checked to see if there is a problem.

3. When doing the damp heat test, if the low temperature does not reach the test index, we should first observe the temperature change, if the temperature drops very slowly, we should consider whether the studio has been dried before the low temperature test.

Fourth, the poor ambient temperature will cause machine failure, so when conducting the test, you must choose the best approximate temperature for the equipment is 5-27 degrees, and the humidity is about 95%.

Fifth, if the actual humidity and the target humidity value are very different from the actual humidity value when doing the damp heat test, we should first check whether the humidification system is working, and then check whether the water supply system of the humidification system contains a certain amount of water, whether the water level control is normal, if everything is normal, then we must ask professional maintenance personnel to overhaul.

The life of the equipment is often because of whether the user has done a good job in the maintenance work in ordinary times, so we must operate in strict accordance with the manufacturer's instruction manual when using the equipment, so that we can extend the life of the equipment.

In order to avoid damage to the equipment caused by operation errors, Huanrui Testing recommends that the staff need to pay attention to the following points when operating the thermal shock test chamber:

1. The shell of the thermal shock test chamber must be effectively grounded to ensure the safety of use.

2. The instrument should be placed in a well-ventilated indoor horizontal position, and no flammable and explosive materials should be placed around it.

3. An iron shell knife switch should be installed in the power supply line, for this box is special, please check the electrical performance of the box before the shell is grounded and energized, and should pay attention to whether there is a circuit break or leakage, this instrument has no explosion-proof device, and shall not be put into flammable and explosive materials to dry.

4. The contents of the box must not be overcrowded, and space must be left to facilitate hot air circulation.

5. Do not arbitrarily remove the top cover of the thermal shock test chamber to disturb or change the line, but when the box fails, the side door can be removed and checked one by one according to the line.

It's hard to say, but the circle is so big, I heard it before, and it should be a bit famous, just go and see it in the real world.

1. It is forbidden to disassemble, process, transform or repair the impact test chamber without authorization, otherwise it is very likely to produce abnormal action, electric shock or fire risk.

2. The ventilation holes of the body of the thermal shock test chamber should be kept unobstructed to avoid failure, abnormal action, reduced life and fire.

3. In the operation of the instrument, before modifying the setting, signal output, starting, stopping and other operations, the safety should be fully considered, and the wrong operation will cause damage or failure of the working equipment.

4. Please use a dry cloth to wipe the instrument of the impact test chamber, do not use alcohol, gasoline or other organic solvents, do not splash water on the instrument, if the instrument is immersed in water, please stop using it immediately, otherwise there is a risk of leakage, electric shock or fire.