Method for manufacturing magnetic material
A magnetic material and a manufacturing method technology, applied in the field of magnetic material manufacturing in liquid phase, can solve the problems of harsh reaction conditions, difficult to disperse, difficult to mass-produce, etc., and achieve low requirements for reaction conditions, reduced manufacturing costs, and easy mass-production. Effect
Inactive Publication Date: 2010-03-03
FUGANG ELECTRONICS DONGGUAN +1
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Problems solved by technology
The process of the solid-phase method is relatively simple, but it needs to be reacted at a temperature higher than 600 degrees Celsius, and the obtained magnetic material is easier to aggregate into agglomerates and not easy to disperse
Vapor phase method, also known as chemical vapor deposition method, needs to be reacted at a temperature higher than 200 degrees Celsius. The reaction conditions are relatively strict, the processing window is small, and it is not easy to mass produce
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[0007] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0008] The manufacturing method of the magnetic material of the present invention comprises steps: (1) dissolving ferric nitrate nonahydrate and other metal nitrate compounds in an alcoholic solvent to obtain a nitric acid compound solution; (2) heating the solution to 60-100 degrees Celsius; ( 3) Add a chelating agent to the above solution, stir evenly, and continue to maintain a heating temperature of 60 to 100 degrees Celsius to make the components in the solution react and volatilize the alcohol solvent in the solution, thereby obtaining a tan solid powder; (4 ) heating the solid powder in an oven to volatilize the residual solvent in the solid powder to obtain a bulky powdery magnetic material.
[0009] Before heating the solution in ...
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The invention discloses a method for manufacturing a magnetic material. The method comprises the following steps: (1) dissolving ferric nitrate nonahydrate and other nitric acid metallic compounds inan alcohol solvent; (2) heating the solution in the step (1) to 60-100 DEG C; (3) adding a chelating agent to the solution, uniformly stirring the chelating agent and continually keeping the heating temperature of 60-110 DEG C to ensure that ingredients in the solution react and the alcohol solvent in the solution is volatilized so as to obtain brown solid powder; and (4) heating the solid powderby an oven to volatilize residual solvents in the solid powder so as to obtain a fluffy powder magnetic material. The manufacturing method of the magnetic material can be carried out at a lower temperature, effectively save energy, reduce the manufacturing cost and be easy to increase the output, and the manufactured magnetic material has higher purity and easy dispersion.
Description
technical field [0001] The invention relates to a manufacturing method of a magnetic material, in particular to a manufacturing method of a magnetic material in a liquid phase. Background technique [0002] The manufacturing methods of general magnetic materials can be divided into solid-phase method, gas-phase method and liquid-phase method. The process of the solid-phase method is relatively simple, but the reaction needs to be carried out at a temperature higher than 600 degrees Celsius, and the obtained magnetic material is easier to aggregate into blocks and not easy to disperse. The vapor phase method is also the chemical vapor deposition method. This method needs to be reacted at a temperature higher than 200 degrees Celsius. The reaction conditions are relatively strict, the processing window is small, and it is not easy to mass produce. In the liquid phase method, the obtained initial product must be sintered at a temperature higher than 400 degrees Celsius to obta...
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IPC IPC(8): B22F9/24
Inventor 黄志豪
Owner FUGANG ELECTRONICS DONGGUAN