Main factors affecting the luster of copper powder
The reason for the low gloss of domestic copper powder is: The particle size distribution range is too wide, and the small particle size ( Aluminum Silicate Fiber Blanket
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(1) The reason for the low gloss of domestic copper powder is: The particle size distribution range is too wide, and the small particle size (
(2) Domestic copper powder with the same composition and imported copper powder have the same hue and saturation. Compared with imported gold powder, the domestic powder has a non-uniform particle size distribution, thick scales, low water surface coverage and low gloss.
(3) Determine the correspondence between the wettability and floatability of copper powder, deepen the understanding of the floating mechanism of copper powder, and propose a new method to improve the floating performance of copper powder, which provides a surface treatment for domestic copper powder. New ideas. On the basis of the above research results, after FSA is used to modify the surface of copper gold powder, the floating property and gold gloss of copper gold powder are greatly improved, and the gap with imported gold powder is shortened. Keywords: copper powder, gloss, physical properties, surface treatment, floatation, metallic pigments, wettability
(4) The ball milling process of vibrating grinding to prepare copper gold powder in the laboratory was studied, and a set of optimal process parameters was optimized.
(5) During the polishing process, the copper gold powder sheet is flattened and polished and over-throwed and shattered. The macroscopic regularity shows that the water surface hiding rate increases first and then decreases with the polishing time. 
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