1、 Equipment features:
The non-standard sand and dust test chamber is driven by a high-power fan to blow a certain concentration of sand and dust at a certain flow rate through the surface of the test samples, in order to evaluate the ability of these test samples (equipment) to resist the penetration effect of dust particles, the ability to resist the abrasion or blockage effect of gravel, and the ability to store and operate under the exposure to dry sand or dusty atmosphere
2、 Meet the standards:
1.MIL-STD-810F
2.GJB150.1
3.GJB150.12
4. The provisions in the national standard GB4208-84 "Classification of Degrees of Protection Provided by Enclosures" and GB2423.37-89.
3、 Technical parameters:
1. Space dimensions: The length, width, and height dimensions of the space are customized according to the actual requirements of the customer
Not exceeding 6000 * 12000 * 6000mm
2. Test temperature: ≤ 60 ℃
3. Working humidity: uncontrolled.
4. Sand and dust composition: Silicon dioxide (angular silica powder) with a content of 97-99%.
5. Composition and size of sand and dust particles in sand blowing test: 1% is greater than 850um, 1.7% is greater than 600um, 14.3% is greater than 425um, 37% is greater than 300um, 28.1% is greater than 212um, 12.7% is not greater than 150um, and 5.2% is less than 150um
6. Composition of sand blowing test: Silicon dioxide (sub angular and strong structured quartz sand) with a content of ≥ 95%, an average roundness factor of 0.2, and a Rockwell hardness of 7.
7. Sand blowing concentration: 0.177g/mP3P.
8. Sand blowing speed: 18-29m/s (150um ≤ sand dust ≤ 850um).
9. Time control: Automatic timing control with a precision of 1 minute.
10. The panel displays and can record the laboratory temperature, relative humidity (uncontrollable), and wind speed.
The cross-sectional area of the sand blowing test at a wind speed of 11.29m/s is 2000 × 1000mm. The laminar flow length is greater than 3 meters