Hot and cold impact tester common faults and troubleshooting

Hot and cold impact testing machine common faults and troubleshooting methods A wide range of environmental testing equipment, but the most widely used environmental testing equipment for high temperature, low temperature, hot and humid test chamber, and now more popular is a collection of high temperature, low temperature, hot and humid as one of the test chamber - Hot and cold shock test box (machine), it is more difficult to repair than other environmental testing equipment, and is representative. The following is an example of a hot and cold shock test box (machine). Let's talk about the structure of a hot and cold impact tester and the common faults and troubleshooting methods.

The thermal shock tester consists of a box, an air circulation system, a refrigeration system, a heating system, and a humidity control system. The air circulation system generally adopts a structure that can adjust the direction of the air supply; the humidification system uses two types of humidification of the boiler and the surface evaporation; the cooling and dehumidification system adopts an air conditioning mode refrigeration structure; the heating system adopts heating fin heating and direct heating of the electric furnace wire Two kinds of structures; temperature and humidity testing methods using wet and dry ball testing methods, but also useful for direct measurement of humidity sensors; control and display interface using separate temperature and humidity and temperature and humidity combination controller and other methods.

Hot and cold impact testing machine common faults and troubleshooting methods:

1. When the equipment suddenly fails during the test operation, a corresponding fault display prompt appears on the control instrument and there is a voice alarm. The operator can quickly check which type of fault belongs to in the troubleshooting chapter of the operation of the equipment, and then the professional can quickly eliminate the fault to ensure the normal operation of the test. Other environmental test equipment will have other phenomena in use, it must be specific phenomena, specific analysis and exclusion.

2. In the high temperature test, if the temperature does not reach the test temperature value, the electrical system can be checked and the faults can be eliminated one by one. If the temperature rises very slowly, it is necessary to look at the air circulation system and see if the adjustment baffle of the air circulation is normally open. Conversely, check whether the motor operation of the air circulation is normal. If the temperature overshoots badly, then you need to set the PID setting parameters. If the temperature rises directly, over-temperature protection, then the controller fails and the control instrument must be replaced.

3. In the hot and humid test, the actual humidity will reach 100% or the actual humidity and the target humidity are very different, and the value is much lower. The former phenomenon may be caused by dry gauze on the wet-bulb sensor. Then check the wetness. Whether there is water shortage in the ball sensor's water tank, the water level in the water tank is automatically controlled by a water level controller, and the water level controller water supply system checks whether the water supply is normal and whether the water level controller works normally. Another possibility is that the wet ball gauze may cause the gauze to become hard due to the long use time or the purity of the water supply, so that the gauze cannot absorb moisture and dry, and the above phenomenon can be eliminated only by replacing or cleaning the gauze. The latter phenomenon is mainly because the humidification system is not working. Check the water supply system of the humidification system. Whether there is a certain amount of water in the water supply system. Control whether the water level of the humidifying boiler water level is normal and whether the water level in the humidifying boiler is normal. If all of the above is normal, then check the electrical control system, which requires professional maintenance personnel to perform maintenance.

4. If the low temperature fails to reach the target of the test, then you must observe the change of temperature. It is the temperature drop is very slow, or the temperature has a tendency to rebound after the temperature reaches a certain value. The former must check whether it will be before the low temperature test. After drying in the studio, the test chamber is kept dry and the test sample is placed in the work chamber. The test sample is placed in the work chamber. The test sample in the work chamber is placed too much, so that the air in the work chamber cannot be fully circulated. After eliminating the above reasons, It is necessary to consider whether it is a fault in the refrigeration system. In this case, it is necessary to ask a manufacturer's professional to perform the repair. The latter phenomenon is caused by the poor use environment of the equipment, the ambient temperature of the equipment, and the location of the equipment.

5. The environmental test equipment must also be regularly maintained. The condenser of the refrigeration system should be regularly cleaned. For the moving parts, lubrication should be done according to the instructions, and the electrical control system should be regularly maintained and checked. These tasks are indispensable.

This kind of Stator Forming Machine can meet the requirement of different stator and coil  dimension. It makes the whole forming process far more iconvinient than by manual. This machine can also be connected to Stator Production Line to meet the mass production requirement.


It can greatly reduce the larbor forces. With the hydraulic pressing system, this machine is pushed by the oil cylinder. Controlled by the PLC, the coil forming dimension can be set by mechanical adjustment. The operation step is very simple. Firstly, operator needs to load the stator to the required tooling position. Then press the start button. Machine will do the forming process.

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