Aluminum powder mixing method
An aluminum powder and mixing technology, which is applied in the field of aluminum powder mixing, can solve the problem of large fluctuation of the particle size of aluminum powder, and achieve the effect of uniform particle size distribution, good stability, and avoiding bimodal distribution.
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Embodiment 1
[0024] A method for mixing aluminum powder, which specifically requires obtaining aluminum powder with a specification of 23-25um, the details are as follows:
[0025] The first step is to obtain raw materials, select skeleton aluminum powder and graded aluminum powder as raw materials, wherein: the skeleton aluminum powder is aluminum powder with a median diameter of D50 and 28-30um, and the graded aluminum powder adopts a median diameter of D50 and 8- Combination of 9um aluminum powder and 3-4um aluminum powder, wherein: the concentration factor of the skeleton aluminum powder is 1.3; the concentration factor of the 8-9um aluminum powder is 1.2, and the concentration factor of the 3-4um aluminum powder is 1.3;
[0026] In terms of weight percentage, 28-30um aluminum powder: 8-9um aluminum powder: 3-4um aluminum powder is 75:20:5.
[0027] The second step, premixing, specifically: including 10 times of premixing; the premixing process is specifically to stir the raw materials...
Embodiment 2-3
[0030] Embodiment 2-3 differs from Embodiment 1 in that:
Embodiment 2
[0031] Example 2: 28-30um aluminum powder in weight percentage: 8-9um aluminum powder: 3-4um aluminum powder is 60:30:10; including 5 premixes, the raw material for a single premix is 2 tons, the total amount of 10 premixes is 20 tons. The target product obtained in Example 3 is aluminum powder of D50 and 24-24.5um, the concentration coefficient is 1.8, and the tap density reaches 1.62g / cm 3 , particle size fluctuation between batches is less than 0.65%
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