Surface modification method for spherical superfine aluminum powder and modification equipment for surface modification method
A surface modification, aluminum powder technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of uneven packaging of organic films, large demand for organic reagents, harsh reaction conditions, etc., to achieve simple structure, low cost, Effects with low environmental requirements
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Embodiment 1
[0025] Such as figure 1 , figure 2 Shown, a kind of surface modification method of spherical ultrafine aluminum powder, weighing aluminum powder and modifier by mass ratio, described modifier is liquid modifier, and the mass ratio of modifier and aluminum powder is 0.5 : 100, the weighed aluminum powder and liquid modifier are sprayed under the protection of inert gas respectively. During the convective spraying process, the atomized liquid modifier is wrapped on the surface of the atomized aluminum powder particles to form a core / shell structure The composite particle structure realizes the surface modification of aluminum powder, and then, the inert gas dedusts and recycles, and the modified aluminum powder settles and is classified before storage. Described modifying agent is liquid modifying agent and is stearic acid.
[0026] A spherical ultrafine aluminum powder surface modification equipment, comprising a mixing tower 1, an aluminum powder tank 2, a modifier storage ...
Embodiment 2
[0029] Repeat Example 1 with the following differences. In this example, the mass ratio of the liquid modifier to the aluminum powder is 0.1:100, and the liquid modifier used is sodium oleate.
Embodiment 3
[0031] Repeat Example 1 with the following differences. In this example, the mass ratio of the liquid modifier to the aluminum powder is 10:100, and the liquid modifier used is polyvinyl alcohol.
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