Method for preparing sound-adsorbing material and sound-adsorbing material
AssigneeGoertek Inc.
InventorXiaodong Cao
Life of this patent
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Abstract
The present invention relates to a method for preparing a sound-adsorbing material and a sound-adsorbing material. The method includes the following steps: S1, preparing a non-foaming material slurry and mixing the slurry uniformly; S2, forming the non-foaming material slurry by using an oil column forming method to form wet granules; S3, drying the wet granules to form dry granules; and S4, roasting the dry granules to form sound-adsorbing material granules. The method has the advantages of simple operation and high reliability. The formed granules can have a uniform size, a smooth surface and high sphericity, and the granules are in contact with each other in points and piled up uniformly, which can reduce the bed resistance.
Claims12
A method for preparing a sound-adsorbing material, comprising the steps of:
- S1, preparing a non-foaming material slurry and mixing the slurry uniformly, the non-foaming material slurry comprises a binding agent, a non-foaming powder material, and an activated carbon fiber, the binding agent is an organosilicon sol-type binding agent, the non-foaming powder material is zeolite powder having a silica-alumina mass ratio of 200 or more;
- S2, forming the non-foaming material slurry using an oil column forming method to form wet granules;
- S3, drying the wet granules to form dry granules;
- and
- S4, roasting the dry granules to form sound-adsorbing material granules.
Dependencies are inferred from the claim text.