Precautions when using the aging test chamber

1. Power supply equipment: an overloaded fuse device should be installed in the power supply line for this box to be special and have a good grounding device;

2. Preparation of samples: After numbering the samples one by one, place the samples on the sample turntable, and it is advisable not to contact and collide with each other;

3. When everything is ready, that is, close the door, close the switches of the control system, plug in the power supply and plug in the power switch turntable to automatically rotate, and the power indicator of the control system is on, if the temperature needs to rise, the switch must be turned on (that is, the high temperature switch and the low temperature switch), and then adjust the automatic control system;

5. The shell of the instrument must be effectively grounded to ensure the safety of use;

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

7. 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;

8. Do not overcrowd the items in the box, and leave space to facilitate hot air circulation;

The ultraviolet aging testing machine is suitable for the aging test of sunlight resistance and artificial light source of non-metallic materials. In daily use, in order to be safe, we should pay attention to the following points: 1. After stopping use for a long time, if you need to use it again, you must carefully check the water source, power supply and various components, and then start the equipment after making sure that it is correct.

2. In the test stage, the time to open the door should be minimized. 3. The sensing device in the studio should not be subjected to strong impact. 4. During the operation of the equipment, sufficient water sources must be maintained.

5. Non-full-time operators of the ultraviolet aging test chamber shall not operate at will. 6. When the equipment cannot be eliminated by itself, please contact the manufacturer. 7. Because ultraviolet radiation has a strong hazard to personnel (especially eyes), operators should minimize exposure to ultraviolet rays (contact time should be 1min).

It is recommended that the operator wear protective goggles and sheaths. In addition, in order to make the equipment work better and keep it in good condition for a long time, Standard Group (Hong Kong) **** recommends that it should be maintained and maintained regularly: 1. The equipment should be kept dry in non-working conditions, and the water after operation should be drained, and the studio and box should be dried.

2. After use, cover the plastic cover to avoid dust ingress. If dust is present, it should be removed.

Maintenance of high and low temperature alternating damp heat test chamber.

1. Maintenance of the whole machine of high and low temperature alternating damp heat test chamber:

The high and low temperature alternating damp heat test chamber should keep the environment clean and the studio clean; Before long-term storage, the whole machine should be comprehensively cleaned, the drying studio should be dried, and the liquid accumulated in various water tanks and sinks should be dried, and attention should be paid to dust and moisture during storage.

The electronic control system of the high and low temperature alternating damp heat test chamber should be regularly dusted, and the components of various control or execution systems should be checked to be free of looseness or wiping cards, and the connecting wires should be firmly connected; After long-term storage, a safety check should be carried out before use.

2. Maintenance of humidification system of high and low temperature alternating damp heat test chamber:

The humidified water supply system of the high and low temperature alternating damp heat test chamber should be kept clean. After long-term use, the pores of the water level may be blocked by limescale, and should be disassembled and dredged.

3. Maintenance of refrigeration system of high and low temperature alternating damp heat test chamber:

The high and low temperature alternating damp heat test chamber should be managed and maintained by professionals who are familiar with low temperature products. Lu Xiao accompanied Chang Shenzen to pay attention to the changes and operation of the refrigeration system. After the high temperature test (60), when preparing for the low temperature test, the door should be opened first, and the low temperature test should be done after the studio temperature drops to near normal temperature, which is more beneficial to the normal operation and life of the product.

The ventilation aging test chamber provides different environments such as high temperature, which can provide users with reproducibility, repeatability, measurability, exclusivity and reliability test of environmental conditions. In this chapter, I will tell you what matters need to be paid attention to when using the aging test chamber.

1.When the ventilation aging test chamber is working, avoid opening and closing the star gate, otherwise it will lead to many adverse consequences. For example, when the high-temperature pie is opened, it will cause high temperature burns to the operator, and it will also affect the uniformity of the temperature in the test chamber.

2.If the test sample is a hot sample, the power supply control of the test sample must be able to use an external power supply, and the power supply of the machine must not be used directly.

3.The ventilation aging test chamber has just been purchased back for use, and the smoke and odor at high temperature are normal. Because the steel plate used in the test chamber is manufactured with lubricating oil, the new equipment will produce a peculiar smell caused by oil smoke and barbecue when it is first used at high temperatures.

4.After each test, do not turn on the first heel of the equipment immediately to avoid the impact of cold air and hot air flow on the operator. If the test sample must be removed immediately, it must be equipped with heat-insulating gloves to avoid burns.

5.When the ventilation aging test chamber is not in use, be sure to cut off the power supply and cover the dust cover, because the equipment will accumulate a lot of dust if it is exposed to the air for a long time.

The environmental conditions for the use of high and low temperature aging test chambers.

1. Temperature: 15 35;

2. Relative humidity: not more than 85%;

3. Atmospheric pressure: 86 106kpa;

4. There is no strong vibration around;

5. No direct sunlight or direct radiation from other heat sources;

6. There is no strong air flow around; When the surrounding air needs to be forced to flow, the air flow should not be blown directly onto the box;

7. There is no strong point magnetic field around it;

8. There is no high concentration of dust and corrosive substances around.

The ventilated aging test chamber is used for the ventilation or aging test of electronic parts and plasticized products, to detect the assessment of electrical insulation materials and judge their adaptability for storage and use under high temperature environmental conditions, and to measure the performance of the sample after aging in the air under simulated high temperature and atmospheric pressure and compare it with the performance of the unaged sample. When selecting the ventilated aging test chamber, the following requirements should be paid attention to the equipment itself:

1. The heating device shall not be used to balance the direct radiation to the test sample.

2. The ventilated aging test chamber should have instruments or devices such as temperature adjustment, indication and recording.

3. There should be a sample holder for placing or hanging samples, and the sample holder should have a certain mechanical strength and be easy to load and unload under high temperature conditions.

4. The sealing strip on the door should not be easy to age, sticky, deformed, and lose sealing performance under high temperature conditions, and should be easy to replace.

5. The appearance coating should be smooth and smooth, with uniform tone, and there should be no exposed bottom, blistering, layering or abrasion marks.

Common sense of maintenance of ventilated aging test chamber.

1. If the long-term shutdown is not in use, the aging test chamber should be energized regularly every half month, and the power-on time should not be less than 1 hour.

2. Clean the condenser regularly (every 3 months): For the compressor with air-cooled cooling, the condensing fan should be regularly overhauled, and the condenser should be decontaminated and dusted to ensure its good ventilation and heat exchange performance; For the compressor to be cooled by water cooling, in addition to ensuring its inlet water pressure and inlet temperature, it is also necessary to ensure the corresponding flow rate, and regularly clean and descale the inside of the condenser to obtain its continuous heat exchange performance.

3. Clean the evaporator (dehumidifier) regularly (every 3 months): Due to the different cleanliness levels of the samples, under the action of forced air circulation, a lot of dust and other small particles will be condensed on the evaporator (dehumidifier), which should be cleaned regularly.

4. Cleaning and balancing of circulating fan blades and condenser fans: Similar to cleaning evaporators, due to the different working environments of aging test chambers, there will be a lot of dust and other small particles on the circulating fan blades and condenser fans, which should be cleaned regularly.

5. Waterway and humidifier cleaning: If the waterway is not smooth and the humidifier is scaled, it is easy to cause the humidifier to dry burn, which may damage the humidifier, so it is necessary to clean the waterway and humidifier regularly.

1. The heat aging test chamber should not be used for long-term shutdown, and the heat aging test chamber should be connected to the power supply for half a month on time, and the power supply time should not be less than 1 hour.

2. Clean the cooler every 3 months.

1. For the refrigeration compressor to choose air-cooled refrigeration, the cold centrifugal fan should be repaired on time, and the cooler should be defouled and ashed to ensure its excellent natural ventilation heat transfer characteristics;

2. For the refrigeration compressor to choose water cooling and heat dissipation refrigeration, in addition to ensuring its leakage working pressure and leakage temperature, it is also necessary to ensure the relative total flow, and clean the scale inside the cooler on time to obtain its continuous heat transfer characteristics.

3. Clean the dehumidifier every 3 months.

Due to the different levels of cleanliness of the samples, under the effect of the Qiangxiao dismantling air circulation system, many small particles such as floating dust and jujube are collected on the dehumidifier, and they should be cleaned on time.

Fourth, clean the air supply mode blade and cooler centrifugal fan.

Similar to cleaning the evaporator, due to the different environments of the thermal aging test chamber, many small particles such as floating dust are collected on the air supply mode blades and cooler centrifugal fans, which should be cleaned on time.

5. Clean the waterway and humidifier.

If the waterway is blocked and the humidifier is fouled, it is easy to cause the humidifier to burn and destroy the humidifier, so be sure to clean the waterway and humidifier on time.

Ultraviolet aging test chamber is a common test chamber commodity, suitable for the aging test of non-metallic material sun resistance and artificial service lamp source, and 8 ultraviolet fluorescent tubes with a high power of 40W are selected as the lamp source.

1. If the ultraviolet aging tester is in a flexible working condition, it should be kept dry and the switching power supply should be disconnected.

2. After the experiment, drain the water in the tester and wipe the personal studio and box.

3. The sensing technology equipment in the working room should not be hit by super force;

4. The ultraviolet aging test chamber should be placed in an area with excellent natural ventilation (it is recommended to install a ventilation fan to maintain natural ventilation), and it should not be installed in a dusty site;

5. When the ultraviolet aging test chamber is abnormal and cannot be cleared by itself, please find the relevant staff of the old chain, and there is no need to disassemble it without authorization;

6. There is no need to terminate the ultraviolet aging test chamber for a long time, and the water resources, switching power supply and various components must be carefully and carefully reused before re-application, and the ultraviolet aging test chamber must be restarted after it is clear and accurate;

7. The actual operation staff wear safety protective goggles and wire covers, because the ultraviolet radiation source has obvious damage to the staff (especially the eyes), so the actual operation of the state search personnel should try to avoid touching the ultraviolet light (the contact time should be <1min);

8. It is strictly forbidden for chemicals to touch this ultraviolet aging test chamber; (Eliminate flammable materials and explosive models);

9. The sewage discharge system of the ultraviolet aging test chamber must be installed in time;

10. After each experiment, the sample should be removed, and the inner tank of the ultraviolet aging test chamber should be cleaned and tidy;

11. When you run out, remember to remove the smoke and dust on the plastic cover shell immediately to keep the shell clean and tidy and prevent the smoke and dust from invading the shell.

Do aging test ordinary drying oven can not be used! Because the biggest feature of the aging test is the uniform temperature, which is why the aging test chamber produced in China in the past is equipped with a turntable, because the temperature uniformity is not enough, the turntable is used to make the material evenly heated, and the aging test chamber in developed countries adopts a special process in terms of temperature uniformity, and it is not necessary to use the turntable. It is said that at present, the aging test chamber produced by Hangzhou Lantian Instrument Co., Ltd. in China is also a special process in developed countries, and there is no turntable type.

The biggest feature of the aging test chamber with foreign special technology is that the available space is greatly increased.

To do the aging test, choose a professional drying oven. You can go to the Nuoding Instrument Information Network to see.

Do you do ordinary high-temperature aging?

What products? Can you elaborate on that?