How to use the sand and dust chamber to do dust chamber test

The sand and dust chamber, is applicable to the antifouling test of parts and materials such as welders, electronic equipment, electrical products, Automotive lighting, motorcycles, chemical plants, etc., and then check the sealing performance of the shell of goods GB4208-93, the shell protection grade IP5X/IP6X antifouling test.

The key to a sand and dust test chamber is to simulate the damage of wind and sand temperature to hardware locks, automotive components, hydraulic seals, and surface lighting fixtures in electrical engineering.

The sand and dust chamber uses a power centrifugal fan to increase the necessary concentration of sand and dust, blows out the surface of the test product with necessary water flow, and then comments on the working ability to prevent the infiltration effect of floating dust particles under the air effect of dry sand or filled dust, the working ability to prevent sand corrosion or blockage, and the working ability to store and operate.

The principle of the sand and dust chamber:
1. The sand and dust chamber is equipped with Vacuum packing implementation components and electronic devices;

2. The main control board of the sand and dust test box adopts a PLC system to control the LCD display, and selects the working time for displaying information in Chinese;
3. Fully automatic replacement of vibration and termination of vibration time;
4. Time for fully automatic replacement of dust blowing centrifugal fan;
5. Operable dust blowing centrifugal fan, smoke and dust vibration, and total test time;
6. This control board has various random setting operation functions as follows
(1) Dust blowing time (stop, blow): duration, cycle time, dust blowing random selection time setting
(2) Vibration time: Automatic replacement of vibration and termination time, vibration time 99 minutes, 59 seconds adjustable
(3) Predicted test time: Test time: zui99 minutes and 59 minutes
(4) Connect to power: Off On Off Off
7. No fuse overload protector, overheating, load, and power loss.

The structural advantages of the sand and dust chamber:
1. The sand and dust chamber is produced and processed with high-quality raw materials. The chamber surface and door wall raw materials are high-quality thick steel plates. The surface Electrostatic induction color electrostatic spraying solution is harmonious in color matching, and the arc design scheme makes the wire frame natural and smooth.
2. There is a detachable dust changing device at the bottom of the sand and dust chamber, which can easily replace the applied dust 100%.
3. The raw material of the inner liner is made of high-quality stainless steel plate. The design scheme is a closed indoor space, and the shell sealing test can be conducted based on the test piece. The indoor test stand and its accessories are made of stainless steel plates, and the design scheme is effective.
4. There is a large window on the tailgate, and there is lighting inside the chamber. During the experiment, the experimental situation in the room can be clearly checked and the specimens can be clearly seen. The tailgate adopts two layers of rubber sealing strips, which are tightly sealed and convenient for power switching. There is a very designed device inside the chamber to place the test product.
5. Install a unique sand and dust chamber to ensure that smoke and dust do not stick to the inner wall of the chamber and solidify. The working time of the equipment is adjustable and can be automatically replaced.
6. On the premise of meeting national industry standards, the characteristics of the sand and dust chamber at all levels are stable, basically more applicable, and more conducive to operation. The sand and dust chamber is easy to install and use, and most of it does not require daily maintenance.
7. The sand and dust chamber is equipped with a vertical dust circulation system for rotation, and talcum powder is used as smoke and dust. Smoke is blown into the air supply mode channel through a centrifugal fan at the bottom of the shaped tube, and then evenly diffused through the air outlet guide plate at the upper end of the device. Smoke can float evenly in the test chamber through a circulating airflow. According to the volume of each cubic meter of the test chamber, the amount of talc powder used is 2kg, and the application frequency should not exceed 20 times. Stainless steel plate centrifugal impeller drives smoke and dust, and ventilation guide plate.
8. A laboratory that can conduct sand and dust tests at this stage. There are natural environment reliability and Electromagnetic compatibility test management center, aerospace natural environment reliability test and test institutions, etc.

Dust chamber test method for sand and dust chamber:
1. The protection level is IP5X. For the shell of type A samples with a pressure lower than the surrounding atmospheric pressure during normal use, an air extraction hole should be set up close to the easily replaceable component, and a hose should be used to connect the air extraction port on the sample to the air extraction port of the vacuum system.
2. The protection level is IP5X, and the shell of the B-type sample with a pressure lower than the surrounding atmospheric pressure during normal use. If the product standard specifies that it is a B-type shell, the tested product will not be vacuumed during the IP5X test. If the product standard does not specify, the tested product will be considered as a A-type shell, and vacuuming is required during the IP5X test. Place the sample in the required position according to the technical specifications of the sample.
3. Samples with a protection level of IP6X, whether they are Type A samples or Type B samples, must be vacuumed.

Technical advantages of sand and dust chamber:
1. The dustproof test box is suitable for conducting IP5 and IP6X dustproof level tests on products;
2. There is a transparent observation window (made of tempered glass material) on the door of the dustproof test chamber, and LED lighting is installed inside the chamber to facilitate observation of internal detection conditions;
3. The bottom of the dustproof test box has a device that can replace dust, making it easy to replace the dust used;
4. The dustproof test chamber is equipped with a heating system: a heater is installed in the circulating air duct to avoid dust condensation, and a tubular mica plate heating ring ensures stable heat;
5. The dustproof test chamber is equipped with a vacuum system: equipped with a vacuum pump, vacuum gauge, air filter, flow meter, and connecting pipe.

SC-015 Dust-proof Test Chamber (Sand Dust Chamber) is applied to physical and other related performance tests for electronic and electrical products, lamps, electrical cabinets, electrical components, automobiles, motorcycles and their parts and other products under simulated dust climate conditions. Verify whether the performance of the product meets the requirements through verification after the measurement, so as to facilitate the design, improvement, verification and factory inspection of the product. Comply meets IEC60529:1989 +A1:1999 +A2: 2013 <Degrees of protection provided by enclosures (IP Code)>,IEC60598-1,  GB2423.37-89 (Test L: dust test methods), GB4208, GB/T 4942.2-93(protective casing grade of low-voltage apparatus), GB7000.1 <Luminaires Part 1: General Requirements and Tests> 9.2.1, 9.2.2 and Figure 6, DIN40050 and IP5K0. The dust test chamber is applicable to the IP5X and IP6X dustproof test of the products.

Dustproof Testing Machine SC-015

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