CN109734956A - A kind of preparation method of powder filling porous material - Google Patents
A kind of preparation method of powder filling porous material Download PDFInfo
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- CN109734956A CN109734956A CN201910051774.XA CN201910051774A CN109734956A CN 109734956 A CN109734956 A CN 109734956A CN 201910051774 A CN201910051774 A CN 201910051774A CN 109734956 A CN109734956 A CN 109734956A
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- powder
- porous material
- preparation
- gas permeable
- hole
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Abstract
The present invention discloses a kind of preparation method of powder filling porous material, comprising: prepare the required porous material for having through-hole, covered on the portion end surface of porous material powder can not by gas permeable material；The discharge port of hopper equipped with powder to be filled is connected on the end face that porous material is not covered by gas permeable material；The pumping end of air-extractor is connected to the surface of gas permeable material, suction pressure is adjusted, enters powder in the through-hole of porous material with air-flow.Method of the invention is relatively simple, only relates to physical operations, and automation easy to accomplish；Filling effect is controllable, and the density of compression can be controlled for loose powder body material.
Description
Technical field
The invention belongs to technical field of function materials, and in particular to a kind of preparation method of powder filling porous material.
Background technique
Porous material is a kind of common structural material, usually has lower density, in building, chemical industry, electronics, aviation
There is application in the fields such as space flight.As material is continued to develop to multifunction, powder filler in the porous material, as to its function
A kind of form of energyization, is more and more studied and is put into practical application.
However, powder filler is usually more difficult in the porous material, especially when the light weight of powder and hole wall friction
When power is larger, it is difficult uniformly to be filled by conventional method, quality control is always problem.
Summary of the invention
In view of the above situation of the prior art, the purpose of the present invention is to provide a kind of preparations of powder filling porous material
Method, method of the invention have the characteristics that easy, at low cost, effect is good, are easy to be automated, and are convenient for practical application.
Above-mentioned purpose of the invention is realized using following technical scheme:
A kind of preparation method of powder filling porous material, comprising the following steps:
1) prepare needed for the porous material for having through-hole, on the portion end surface of porous material cover powder can not by
Gas permeable material；
2) discharge port of the hopper equipped with powder to be filled is connected to the end face that porous material is not covered by gas permeable material
On；
3) the pumping end of air-extractor is connected to the surface of gas permeable material, adjusts suction pressure, make powder with air-flow into
Enter in the through-hole of porous material.
According to the requirement of preparation, can multiple regions to material and surface repeat above-mentioned operation 2) and 3), obtain using powder
The porous material of end filling.
Porous material can include: sponge, through-hole foam, cellular material, powder is aerogel powder or other are difficult to fill out
The lightweight powder filled.
Compared with prior art, the invention has the following advantages: method is relatively simple, physical operations is only related to, and
It is easy to be automated；Filling effect is controllable, and the density of compression can be controlled for loose powder body material.
Detailed description of the invention
Fig. 1 is the schematic diagram of this method principle.
Specific embodiment
Objects, technical solutions and advantages for a clearer understanding of the present invention, with reference to the accompanying drawings and embodiments, to this
The method of invention is further elaborated.
Technical principle of the invention is that the dusty material of lightweight is generally easy to flow and move with air, utilizes this spy
Property, it can solve the filling problem of light powder foot couple porous material.Technical solution of the present invention is related to a kind of universal method, to more
Porous materials are filled, and are had the characteristics that method is easy, at low cost, effect is good, are easy to be automated, and practical application is convenient for.
Embodiment fills aerogel powder into cellular material
As shown in Figure 1, take a piece of wedge-shaped honeycomb 4 (having a size of 100mm*100mm, with a thickness of 10~50mm, wherein honeycomb hole
Lattice are vertical direction), the iron wire strainer 5 of 400 mesh is covered on its bottom surface, although in the present embodiment using wedge-shaped bee
Nest, but honeycomb shape is without being limited thereto, is also possible to other shapes, such as rectangular shape, strainer is not limited to iron wire strainer, filter
Depending on the powder that the aperture of net can optionally fill, as long as powder can not be by when filling.Then, in the hopper 1 for having lid
In be put into suitable aerogel powder, the discharge port of hopper is through pipeline 2 close to the top surface of honeycomb 4.
The air inlet mouth of pipe (bypass valve for installing adjusting pressure additional) 6 of vacuum pump is covered on to the bottom surface of iron wire strainer 5, is opened true
Sky pumps and adjusts pressure to 0.05MPa, other pressure can also be selected according to material characteristics.Open the mouth of 1 exit and entrance of hopper
Lid makes air-flow flow into vacuum pump through the region to be filled 3 inside piping 2, honeycomb 4 from hopper outlet, in this course gas
Gel powder enters the region to be filled 3 inside honeycomb 4 with air-flow, and is retained by iron wire strainer 5.
As needed, while the position of movement pipeline 2 and vacuum pump nozzle 6, other regions of filled honeycomb 4 are repeated.
After filling, closes hopper cover, removes vacuum pump nozzle, iron wire strainer, aerogel powder is stayed due to frictional force
Inside the cell of honeycomb 4, the filling to honeycomb 4 is completed.
Although illustrating the present invention above by taking cellular material and aerogel powder as an example, but the invention is not limited thereto, example
Such as, porous material is also possible to sponge or through-hole foam etc., and powder can be other lightweight powder for being difficult to fill.
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out several
Improvement and modification, these improvements and modifications also fall within the scope of protection of the claims of the present invention.
Claims (4)
1. a kind of preparation method of powder filling porous material, comprising the following steps:
1) porous material for having through-hole needed for preparing, covered on the portion end surface of porous material powder can not by it is ventilative
Material；
2) discharge port of the hopper equipped with powder to be filled is connected on the end face that porous material is not covered by gas permeable material；
3) the pumping end of air-extractor is connected to the surface of gas permeable material, adjusts suction pressure, enters powder with air-flow more
In the through-hole of Porous materials.
2. preparation method described in accordance with the claim 1 further includes repeating institute to the multiple regions of porous material and surface
State step 2) and 3).
3. preparation method described in accordance with the claim 1, wherein the porous material is sponge, through-hole foam or cellular material.
4. preparation method described in accordance with the claim 1, wherein the powder is aerogel powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051774.XA CN109734956A (en) | 2019-01-18 | 2019-01-18 | A kind of preparation method of powder filling porous material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051774.XA CN109734956A (en) | 2019-01-18 | 2019-01-18 | A kind of preparation method of powder filling porous material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109734956A true CN109734956A (en) | 2019-05-10 |
Family
ID=66365370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910051774.XA Pending CN109734956A (en) | 2019-01-18 | 2019-01-18 | A kind of preparation method of powder filling porous material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109734956A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001056726A1 (en) * | 2000-02-02 | 2001-08-09 | Höganäs Ab | Powder filling method and arrangement therefor |
| CN1324591A (en) * | 2000-05-22 | 2001-12-05 | 林肇赓 | Powder material filling method for sponge and sponge containing the powder material |
| CN105328934A (en) * | 2015-11-02 | 2016-02-17 | 卓达新材料科技集团有限公司 | Aerogel composite insulation board |
| CN206358387U (en) * | 2016-11-15 | 2017-07-28 | 正大天晴药业集团股份有限公司 | Powder feeding apparatus |
-
2019
- 2019-01-18 CN CN201910051774.XA patent/CN109734956A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001056726A1 (en) * | 2000-02-02 | 2001-08-09 | Höganäs Ab | Powder filling method and arrangement therefor |
| CN1324591A (en) * | 2000-05-22 | 2001-12-05 | 林肇赓 | Powder material filling method for sponge and sponge containing the powder material |
| CN105328934A (en) * | 2015-11-02 | 2016-02-17 | 卓达新材料科技集团有限公司 | Aerogel composite insulation board |
| CN206358387U (en) * | 2016-11-15 | 2017-07-28 | 正大天晴药业集团股份有限公司 | Powder feeding apparatus |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211208 Address after: No. 108, 1f, building 1, yard 3, Fengzhi East Road, Haidian District, Beijing 100094 Applicant after: BEIJING GRAPHENE TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Address before: Science and technology development department, No.81 box, Haidian District, Beijing 100095 Applicant before: AECC BEIJING INSTITUTE OF AERONAUTICAL MATERIALS |
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| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190510 |
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| RJ01 | Rejection of invention patent application after publication |