Metal powder is a group of metal particles with a size of less than 1mm, including single metal powder, alloy powder, and some refractory compound powder with metallic properties. It is the main raw material of powder metallurgy. Today, the table change recommends a gas protection vibro sifter suitable for metal powder screening.
Gas protection vibro sifter is a new type of vibrating screen developed by Dahan Machinery, which is generally made of stainless steel, gas protection hoses, anti-static devices, etc. It is our Dahan product.
The three advantages of Gas protection vibro sifter meet the screening requirements of metal powder
Screening powders at the beginning of the production cycle and recycling them at the end of the production cycle ensures that contaminants such as large particles and agglomerates are removed from the powder, providing an accurate particle size distribution. To this end, it is necessary to use a combination of high-quality inspection sieves and ultrasonic deblinding systems that can accurately screen metal powders down to 20 microns. Ultrasonic deblinding sieves use ultrasonic frequencies to be applied on the screen to prevent sieves from clogging and clogging.
Closed systems can be purged with inert gas to isolate contamination sensitive powders from ambient air and moisture, reducing cross-contamination of powders, eliminating operators having to touch powders, ensuring a safer environment, and a vacuum system that can be connected to your 3D printer for fast, dust-free powder recycling.
Screened metal powders can be reused immediately, mixed with virgin materials, stored or recycled, vacuum extraction of metal powders from the print bed, and then screened metal powders for future use, increasing additive manufacturing/3D printer productivity — - Reduces the recovery time of metal powder by 85%, it allows production of 100 to 25,000 kg/h, depending on the product, mesh and feed flow of the machine.
| Model | Test Material | Mesh Size | Vibro Sifter | Gas Protection Vibro Sifter |
| 1000 | Silicon carbide | 500 mesh | Cannot be sieved | 1500 kg/h |
| 1000 | Tungsten powder | 600 mesh | 15 minutes without sifting out fine powder | 30kg/hour |
| ⌀1000 | Cobalt powder | 400 mesh | 10kg/hour | 300 kg/h |
| ⌀1000 | NdFeB powder | 300 mesh | 32.2% sieve residue 30 minutes | 30 minutes to sieve out 6.9% of the residue |
| ⌀1000 | Gold steel sand powder | 300 mesh | Cannot be sieved | 1300 kg/h |
| ⌀1200 | Antimony trioxide | 80 mesh | 700 kg/h | 2000kg/hour |
Sieving metal powder
Sieving graphite powder
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