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Preparation method of sound absorbing material, the sound absorbing material and filling method of same
The invention discloses a preparation method of a sound absorbing material, the sound absorbing material and a filling method of same. The preparation method comprises the following steps: (S1) preparing a non-foamed slurry material; (S2) producing a flammable material framework and a shape-cover container, and placing the flammable material framework into the shape-cover container; (S3) forming the non-foamed slurry material in the shape-cover container to form a wet formed body; (S4) drying the wet formed body to form a dry formed body; and (S5) roasting the dry formed body, wherein the flammable material framework is burned off during the roasting step to form three-dimensional throughout channels. The preparation method is simple in operations. The three-dimensional throughout channels are formed in the sound absorbing material so that sound absorbing effect is improved. The sound absorbing material, which is prepared through the preparation method disclosed in the invention, has the three-dimensional throughout channels therein, so that the sound absorbing material is good in the sound absorbing effect. The filling method includes the steps of pre-fabricating the sound absorbing material and filling it into a to-be-filled space, so that the sound absorbing material is fully filled in the to-be-filled space.
Preparation method of sound absorbing material, the sound absorbing material and filling method of same
The invention discloses a preparation method of a sound absorbing material, the sound absorbing material and a filling method of same. The preparation method comprises the following steps: (S1) preparing a non-foamed slurry material; (S2) producing a flammable material framework and a shape-cover container, and placing the flammable material framework into the shape-cover container; (S3) forming the non-foamed slurry material in the shape-cover container to form a wet formed body; (S4) drying the wet formed body to form a dry formed body; and (S5) roasting the dry formed body, wherein the flammable material framework is burned off during the roasting step to form three-dimensional throughout channels. The preparation method is simple in operations. The three-dimensional throughout channels are formed in the sound absorbing material so that sound absorbing effect is improved. The sound absorbing material, which is prepared through the preparation method disclosed in the invention, has the three-dimensional throughout channels therein, so that the sound absorbing material is good in the sound absorbing effect. The filling method includes the steps of pre-fabricating the sound absorbing material and filling it into a to-be-filled space, so that the sound absorbing material is fully filled in the to-be-filled space.
Preparation method of sound absorbing material, the sound absorbing material and filling method of same
CAO XIAODONG (author)
2016-01-13
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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