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Production method of modified aluminum powder

A manufacturing method and technology of aluminum powder, which is applied in the field of aluminum powder, can solve the problems of low yield rate of end products, low thermal and electrical conduction efficiency, and difficult cutting of products, so as to ensure thermal and electrical conduction performance, long service life, and improved combination efficiency. Effect

Active Publication Date: 2015-07-01
鞍钢实业微细铝粉有限公司
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Problems solved by technology

[0002] At present, the aluminum powder products used in the thermal and electrical industries generally have the problems of poor thermal conductivity, low viscosity, and small specific surface area, resulting in products that are not easy to cut, low in thermal and electrical conductivity, poorly combined with solvents, and easy to fall off , low end product yield and short service life

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  • Production method of modified aluminum powder
  • Production method of modified aluminum powder

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Embodiment Construction

[0012] The specific embodiment of the present invention is further described below in conjunction with accompanying drawing:

[0013] Such as figure 1 and figure 2 Shown, the manufacture method of a kind of modified aluminum powder of the present invention comprises the following steps to complete:

[0014] 1) Put the aluminum powder on the dense steel wire mesh with a density of more than 400 mesh in the drying box. There is a gas transmission connection hole on the lower left side of the drying box, and there are pipes extending into the box inside. The most uniform fumigation of aluminum powder, the water vapor generator can quickly produce water vapor and spray it out evenly. The water vapor is heated, evaporates upwards, and is distributed on the surface of the aluminum powder particles. Adjust the heating temperature according to the amount of water vapor to ensure that the ambient humidity is 75%-85%. At the same time as the water vapor is input, the drying oven is h...

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Abstract

The invention relates to a production method of modified aluminum powder. The method includes the steps of 1, placing aluminum powder in a drying box, evenly fumigating the aluminum powder from bottom to top with a moisture generator, adjusting the heating temperature according to the steam volume to ensure the ambient temperature ranging from 75% to 85%, and heating the drying box to allow the surface of the aluminum power to combine and act with water; 2, after sufficient long-term reaction of the aluminum power and water, removing the moisture generator, adjusting the temperature of the drying box to finish the drying process n 48-56 hours, and collecting the aluminum powder after drying. Compared to the prior art, the method has the advantages that the specific surface area of the aluminum powder is increased greatly, the oxide layer of the aluminum powder is evenly thickened, the purity of the aluminum powder is decreased slightly, thermal conductivity and electric conductivity in aluminum are guaranteed, viscosity of the aluminum powder can also be increased, the aluminum power and solvent can be combined more efficiently, sedimentation rate is reduced, and dispersion is effective; the product can have the advantages of no adhesion, high thermal conductivity and electric conductivity, long storage time and long service life.

Description

technical field [0001] The invention relates to the technical field of aluminum powder, in particular to a method for manufacturing modified aluminum powder. Background technique [0002] At present, the aluminum powder products used in the thermal and electrical industries generally have the problems of poor thermal conductivity, low viscosity, and small specific surface area, resulting in products that are not easy to cut, low in thermal and electrical conductivity, poorly combined with solvents, and easy to fall off , The end product yield is low and the service life is short. Contents of the invention [0003] The purpose of the present invention is to provide a method for producing modified aluminum powder which improves the thermal and electrical conductivity, viscosity and ability to combine with solvents of aluminum powder. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] A kind of manufacture method o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00C23C8/16
Inventor 董世新王贵宗田景明苏德玺
Owner 鞍钢实业微细铝粉有限公司
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