CN103710001A - Preparation method of artificial snow based on strontium ferrite - Google Patents
Preparation method of artificial snow based on strontium ferrite Download PDFInfo
- Publication number
- CN103710001A CN103710001A CN201310683733.5A CN201310683733A CN103710001A CN 103710001 A CN103710001 A CN 103710001A CN 201310683733 A CN201310683733 A CN 201310683733A CN 103710001 A CN103710001 A CN 103710001A
- Authority
- CN
- China
- Prior art keywords
- powder
- strontium ferrites
- preparation
- spherical biscuit
- strontium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Compounds Of Iron (AREA)
- Glanulating (AREA)
Abstract
The invention discloses a preparation method of novel artificial snow based on strontium ferrite, belonging to the technical field of inorganic non-metal materials. The method comprises the following steps: preparing strontium ferrite powder into a strontium ferrite spherical biscuit by a dry press molding technique, coating the powder on the strontium ferrite spherical biscuit, sintering, screening, cleaning and drying to finally obtain the novel artificial snow. The strontium ferrite spheres with favorable integral coating effect prepared by the one-step sintering technique have improved surface conditions; the prepared novel artificial snow has the advantages of white surface, favorable glossiness, favorable combination between the coating layer and base, high mechanical strength and long service life; and the magnetized novel artificial snow has favorable self-aggregation property, damping dispersivity and lubricating property, and has the characteristics similar to natural snow. Besides, the method effectively simplifies the preparation technique, lowers the preparation cost, and is convenient for industrial production.
Description
Technical field
The preparation method who the present invention relates to a kind of novel artificial snow based on strontium ferrites, belongs to technical field of inorganic nonmetallic materials.
Background technology
In recent years, skiing has obtained liking of people gradually.Yet owing to being subject to the restriction of season and region, skiing can not be carried out widely.At present, people have developed some artificial snow-makings, as water-cooled being frozen into snow or replacing snow etc. with the profile material similar to snow.Yet these snowmaking all can not fundamentally solve the actual demand of skiing.Research finds, the strontium ferrites bead that sintering is crossed has good dispersed from agglomeration and damping after magnetizing, but it self is black and surface lubrication is good not.If it is carried out, surface is coated processes, and is expected to prepare the novel artificial snow with similar natural snow characteristic.Up to the present, researchist on the basis of the strontium ferrites bead after sintering, adopts different methods to be coated it.Method is first coated powder to be prepared into a slurry, then the strontium ferrites bead after sintering is immersed, make strontium ferrites bead surface be wrapped by powdery pulp and fully wrap up, and through super-dry, sintering, the strontium ferrites bead after being finally coated.Yet, in experiment, find, slurry that coated powder is made be difficult to sintering after strontium ferrites bead good combination, and the strontium ferrites bead taking out from slurry is very easy to inter-adhesively, the integral coating effect that obtains sample after sintering is bad.Another kind method is the strontium ferrites bead surface-coated powder after sintering first, through oversintering, and the strontium ferrites bead after being finally coated.Yet, in the coated process of water spray, powder, to find, the strontium ferrites bead after sintering and the binding characteristic of coated powder are good not, and the sample surfaces obtaining at sintering, sometimes also there will be part to separate out material, thereby affect whole covered effect.In addition, in above-mentioned two kinds of method for coating, all successively related to sintering twice, its preparation technology's more complicated, preparation cost is relatively high.
In order to address these problems, the present invention is directly coated the spherical biscuit of strontium ferrites with powder, the spherical biscuit sintering of strontium ferrites and coated powder sintering are once completed, so not only can effectively improve integral coating effect, and can reduce production costs, enhance productivity, be convenient to suitability for industrialized production.
Summary of the invention
A kind of preparation method of the novel artificial snow based on strontium ferrites, first strontium ferrites powder is prepared into the spherical biscuit of strontium ferrites through dry-pressing formed technology, dry-pressing formed binding agent is the polyvinyl alcohol water solution of water, ethanol or 1-10wt%, and binding agent quality is the 1-10% of strontium ferrites powder quality; Use again the spherical biscuit of powder coating strontium ferrite, through sintering, sieve, clean, dry after, finally obtain the strontium ferrites bead for the preparation of novel artificial snow.
The diameter of the spherical biscuit of above-mentioned strontium ferrites is 1-10mm.
The spherical biscuit of above-mentioned strontium ferrites is carried out to coated method is: first the spherical biscuit of described strontium ferrites is dispersed on 10-80 object sieve, then at the spherical biscuit surface uniform of strontium ferrites, spray water and vibrate sieve, make its surface fully moistening, but it is not inter-adhesive, powder body vibrate sieve, makes powder evenly be coated on the spherical biscuit of strontium ferrites surface subsequently; Repeat to spray water and vibrate sieve, powder body and vibrate sieve, until obtain the evenly coated spherical biscuit of strontium ferrites of powder, the thickness of coating layer regulates and controls by controlling coated number of times.
The coated thickness of above-mentioned powder is the 3-20% of the spherical biscuit diameter of strontium ferrites.
Above-mentioned powder is by the SiO of 15-70wt%
2, 5-30wt% ZrO
2, 10-20wt% Al
2o
3, the CaO of 10-20wt%, the BaO of 5-15wt% form.
Above-mentioned powder is to be prepared from by the following method: by SiO
2, ZrO
2, Al
2o
3, CaO, BaO carry out ball milling after mixing, and dries the slurry after ball milling, after sieving, obtains powder.
The concrete technology of above-mentioned sintering is: the spherical biscuit of the strontium ferrites that is coated with powder is evenly spread to Al
2o
3in powder, at 1000-1300 ℃, carry out sintering, soaking time is 10-240min.
Tool of the present invention has the following advantages: the present invention adopts disposable sintering process to prepare the respond well strontium ferrites bead of integral coating, improved its condition of surface, the novel artificial snow surface of preparation is snow-white and glossiness good, coating layer is combined with matrix well, physical strength is high, long service life, novel artificial after magnetizing snow has good in agglomeration, damping dispersiveness and oilness, has the characteristic that is similar to natural snow.In addition, the method has effectively been simplified preparation technology, has reduced preparation cost, is convenient to suitability for industrialized production.
Embodiment
Below by specific embodiment, describe the present invention in detail, but content not thereby limiting the invention.
Embodiment 1:
In the present embodiment, powder used is by the SiO of 15wt%
2, 30wt% ZrO
2, 20wt% Al
2o
3, the CaO of 20wt% is, the BaO of 15wt% forms, and weighed the powder of each constituents according to said ratio, ball milling, dry and sieve after, obtain powder.
The preparation method of snowmaking is as follows: first add the water that accounts for strontium ferrites powder weight 1% as binding agent, adopt dry-pressing formed technology strontium ferrites powder to be prepared into the spherical biscuit of strontium ferrites of diameter 1mm.Subsequently the spherical biscuit of strontium ferrites is dispersed on 80 object sieves, then at the spherical biscuit surface uniform of strontium ferrites, spray water and vibrate sieve, make its surface fully moistening, but it is not inter-adhesive, powder body vibrate sieve, makes powder evenly be coated on the spherical biscuit of strontium ferrites surface subsequently.After constantly repeating to spray water and vibrating sieve, powder body and vibrate sieve 10 times, obtain the evenly coated spherical biscuit of strontium ferrites of powder.The spherical biscuit of the strontium ferrites that is coated with powder is evenly spread to Al
2o
3in powder, put into stove sintering, sintering temperature is 1100 ℃, and soaking time is 120min.To be sintered complete and sample cooling after, after sieving, clean, drying, the novel artificial snow surface finally preparing is snowy white and glossiness is good, coating layer is combined well with strontium ferrites bead, coating thickness is 10% of the spherical biscuit diameter of strontium ferrites, novel artificial after magnetizing snow has good in agglomeration, damping dispersiveness and oilness, meets the requirement that snow pack is built.
Embodiment 2:
In the present embodiment, powder used is by the SiO of 70wt%
2, 5wt% ZrO
2, 10wt% Al
2o
3, the CaO of 10wt% is, the BaO of 5wt% forms, and weighed the powder of each constituents according to said ratio, ball milling, dry and sieve after, obtain powder.
The preparation method of snowmaking is as follows: first add the polyvinyl alcohol water solution of the 10wt% that accounts for strontium ferrites powder weight 2% as binding agent, adopt dry-pressing formed technology strontium ferrites powder to be prepared into the spherical biscuit of strontium ferrites of diameter 5mm.Subsequently the spherical biscuit of strontium ferrites is dispersed on 60 object sieves, then at the spherical biscuit surface uniform of strontium ferrites, spray water and vibrate sieve, make its surface fully moistening, but it is not inter-adhesive, powder body vibrate sieve, makes powder evenly be coated on the spherical biscuit of strontium ferrites surface subsequently.After constantly repeating to spray water and vibrating sieve, powder body and vibrate sieve 3 times, obtain the evenly coated spherical biscuit of strontium ferrites of powder.The spherical biscuit of the strontium ferrites that is coated with powder is evenly spread to Al
2o
3in powder, put into stove sintering, sintering temperature is 1000 ℃, and soaking time is 240min.To be sintered complete and sample cooling after, after sieving, clean, drying, the novel artificial snow surface finally preparing is snowy white and glossiness is good, coating layer is combined well with strontium ferrites bead, coating thickness is 3% of the spherical biscuit diameter of strontium ferrites, novel artificial after magnetizing snow has good in agglomeration, damping dispersiveness and oilness, meets the requirement that snow pack is built.
Embodiment 3:
In the present embodiment, powder used is by the SiO of 60wt%
2, 15wt% ZrO
2, 10wt% Al
2o
3, the CaO of 10wt% is, the BaO of 5wt% forms, and weighed the powder of each constituents according to said ratio, ball milling, dry and sieve after, obtain powder.
The preparation method of snowmaking is as follows: first add the polyvinyl alcohol water solution of the 1wt% that accounts for strontium ferrites powder weight 5% as binding agent, adopt dry-pressing formed technology strontium ferrites powder to be prepared into the spherical biscuit of strontium ferrites of diameter 8mm.Subsequently the spherical biscuit of strontium ferrites is dispersed on 30 object sieves, then at the spherical biscuit surface uniform of strontium ferrites, spray water and vibrate sieve, make its surface fully moistening, but it is not inter-adhesive, powder body vibrate sieve, makes powder evenly be coated on the spherical biscuit of strontium ferrites surface subsequently.After constantly repeating to spray water and vibrating sieve, powder body and vibrate sieve 8 times, obtain the evenly coated spherical biscuit of strontium ferrites of powder.The spherical biscuit of the strontium ferrites that is coated with powder is evenly spread to Al
2o
3in powder, put into stove sintering, sintering temperature is 1250 ℃, and soaking time is 60min.To be sintered complete and sample cooling after, after sieving, clean, drying, the novel artificial snow surface finally preparing is snowy white and glossiness is good, coating layer is combined well with strontium ferrites bead, coating thickness is 8% of the spherical biscuit diameter of strontium ferrites, novel artificial after magnetizing snow has good in agglomeration, damping dispersiveness and oilness, meets the requirement that snow pack is built.
Embodiment 4:
In the present embodiment, powder used is by the SiO of 50wt%
2, 10wt% ZrO
2, 15wt% Al
2o
3, the CaO of 15wt% is, the BaO of 10wt% forms, and weighed the powder of each constituents according to said ratio, ball milling, dry and sieve after, obtain powder.
The preparation method of snowmaking is as follows: first add the ethanol that accounts for strontium ferrites powder weight 10% as binding agent, adopt dry-pressing formed technology strontium ferrites powder to be prepared into the spherical biscuit of strontium ferrites of diameter 10mm.Subsequently the spherical biscuit of strontium ferrites is dispersed on 10 object sieves, then at the spherical biscuit surface uniform of strontium ferrites, spray water and vibrate sieve, make its surface fully moistening, but it is not inter-adhesive, powder body vibrate sieve, makes powder evenly be coated on the spherical biscuit of strontium ferrites surface subsequently.After constantly repeating to spray water and vibrating sieve, powder body and vibrate sieve 20 times, obtain the evenly coated spherical biscuit of strontium ferrites of powder.The spherical biscuit of the strontium ferrites that is coated with powder is evenly spread to Al
2o
3in powder, put into stove sintering, sintering temperature is 1300 ℃, and soaking time is 10min.To be sintered complete and sample cooling after, after sieving, clean, drying, the novel artificial snow surface finally preparing is snowy white and glossiness is good, coating layer is combined well with strontium ferrites bead, coating thickness is 20% of the spherical biscuit diameter of strontium ferrites, novel artificial after magnetizing snow has good in agglomeration, damping dispersiveness and oilness, meets the requirement that snow pack is built.
Claims (7)
1. the preparation method of the snowmaking based on strontium ferrites, it is characterized in that, first strontium ferrites powder is prepared into the spherical biscuit of strontium ferrites through dry-pressing formed technology, dry-pressing formed binding agent is the polyvinyl alcohol water solution of water, ethanol or 1-10wt%, and binding agent quality is the 1-10% of strontium ferrites powder quality; Use again the spherical biscuit of powder coating strontium ferrite, through sintering, sieve, clean, dry, obtain snowmaking.
2. preparation method according to claim 1, is characterized in that, the diameter of the spherical biscuit of described strontium ferrites is 1-10mm.
3. preparation method according to claim 1, it is characterized in that, the spherical biscuit of described strontium ferrites is carried out to coated method is: first the spherical biscuit of described strontium ferrites is dispersed on 10-80 object sieve, then at the spherical biscuit surface uniform of strontium ferrites, spray water and vibrate sieve, make its surface fully moistening, but not inter-adhesive, powder body vibrate sieve, makes powder evenly be coated on the spherical biscuit of strontium ferrites surface subsequently; Repeat to spray water and vibrate sieve, powder body and vibrate sieve, until obtain the evenly coated spherical biscuit of strontium ferrites of powder, the thickness of coating layer regulates and controls by controlling coated number of times.
4. preparation method according to claim 3, is characterized in that, the thickness of described coating layer is the 3-20% of the spherical biscuit diameter of strontium ferrites.
5. according to the preparation method described in claim 1 or 3, it is characterized in that, described powder is by the SiO of 15-70wt%
2, 5-30wt% ZrO
2, 10-20wt% Al
2o
3, the CaO of 10-20wt%, the BaO of 5-15wt% form.
6. preparation method according to claim 5, is characterized in that, described powder is to be prepared from by the following method: by SiO
2, ZrO
2, Al
2o
3, CaO, BaO carry out ball milling after mixing, and dries the slurry after ball milling, after sieving, obtains powder.
7. preparation method according to claim 1, is characterized in that, the concrete technology of described sintering is: the spherical biscuit of the strontium ferrites that is coated with powder is evenly spread to Al
2o
3in powder, at 1000-1300 ℃, carry out sintering, soaking time is 10-240min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310683733.5A CN103710001B (en) | 2013-12-12 | 2013-12-12 | Preparation method of artificial snow based on strontium ferrite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310683733.5A CN103710001B (en) | 2013-12-12 | 2013-12-12 | Preparation method of artificial snow based on strontium ferrite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103710001A true CN103710001A (en) | 2014-04-09 |
| CN103710001B CN103710001B (en) | 2014-12-24 |
Family
ID=50403370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310683733.5A Expired - Fee Related CN103710001B (en) | 2013-12-12 | 2013-12-12 | Preparation method of artificial snow based on strontium ferrite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103710001B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402418A (en) * | 2014-10-17 | 2015-03-11 | 北矿磁材科技股份有限公司 | Preparation method of artificial snow adopting magnetic material as substrate |
| CN104861931A (en) * | 2015-04-24 | 2015-08-26 | 北矿磁材科技股份有限公司 | Artificial snow preparation method |
| TWI570229B (en) * | 2015-12-11 | 2017-02-11 | 蕭倍昌 | Artificial snow material and method of producing the same |
| CN111704893A (en) * | 2020-05-26 | 2020-09-25 | 北京理工大学 | Magnetic gel ice and snow material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63110709A (en) * | 1986-10-29 | 1988-05-16 | Michio Ueno | Ferrite magnet coated with powder |
| EP1918347A1 (en) * | 2005-06-30 | 2008-05-07 | Jingming Lang | Artificial snow, and artificial ski slope or ground |
| CN101219475A (en) * | 2007-01-11 | 2008-07-16 | 潘喜峰 | Process for producing nickel phosphor alloy coating strontium ferrite magnetic electromagnetic wave absorption powder |
| CN101276668A (en) * | 2008-02-02 | 2008-10-01 | 河北工业大学 | Method for preparing nano soft magnetic manganese-zinc ferrite |
| CN102942367A (en) * | 2012-11-20 | 2013-02-27 | 上海工程技术大学 | Method for preparing heat resisting plate for processing of soft magnetic ferrite |
-
2013
- 2013-12-12 CN CN201310683733.5A patent/CN103710001B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63110709A (en) * | 1986-10-29 | 1988-05-16 | Michio Ueno | Ferrite magnet coated with powder |
| EP1918347A1 (en) * | 2005-06-30 | 2008-05-07 | Jingming Lang | Artificial snow, and artificial ski slope or ground |
| CN101219475A (en) * | 2007-01-11 | 2008-07-16 | 潘喜峰 | Process for producing nickel phosphor alloy coating strontium ferrite magnetic electromagnetic wave absorption powder |
| CN101276668A (en) * | 2008-02-02 | 2008-10-01 | 河北工业大学 | Method for preparing nano soft magnetic manganese-zinc ferrite |
| CN102942367A (en) * | 2012-11-20 | 2013-02-27 | 上海工程技术大学 | Method for preparing heat resisting plate for processing of soft magnetic ferrite |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402418A (en) * | 2014-10-17 | 2015-03-11 | 北矿磁材科技股份有限公司 | Preparation method of artificial snow adopting magnetic material as substrate |
| CN104861931A (en) * | 2015-04-24 | 2015-08-26 | 北矿磁材科技股份有限公司 | Artificial snow preparation method |
| TWI570229B (en) * | 2015-12-11 | 2017-02-11 | 蕭倍昌 | Artificial snow material and method of producing the same |
| CN111704893A (en) * | 2020-05-26 | 2020-09-25 | 北京理工大学 | Magnetic gel ice and snow material and preparation method thereof |
| CN111704893B (en) * | 2020-05-26 | 2021-11-05 | 北京理工大学 | Magnetic gel ice and snow material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103710001B (en) | 2014-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103710001B (en) | Preparation method of artificial snow based on strontium ferrite | |
| CN107573007B (en) | Preparation method of magnesium oxysulfate cementing material handicraft and magnesium oxysulfate cementing material | |
| CN103664114B (en) | Self-heat-insulating fly ash autoclaved aerated concrete block and preparation method thereof | |
| CN102815965A (en) | Porous ceramsite made of low-silicon iron tailings and preparation method of porous ceramsite | |
| CN105294140A (en) | Porous ceramics preparation method, porous ceramics and application thereof | |
| CN104098318B (en) | A kind of biomass porous phase-changing and temperature-regulating humidity adjusting material and preparation method thereof | |
| CN101870574B (en) | Anion colored veneer exterior thermal insulation material | |
| CN107663084B (en) | Air-purifying humidity-adjusting ceramic tile and preparation method thereof | |
| CN108246966B (en) | Polymer modified silica sol and preparation method thereof | |
| CN107043237A (en) | A kind of self-insulating concrete and preparation method thereof | |
| CN102304348B (en) | Method for preparing moisture-content-adjustable material | |
| CN105777092A (en) | Pelelith healthcare clay material and method for preparing clay product from same | |
| CN105732083B (en) | A method of with cow dung dry method baking ceramsite | |
| CN109467384A (en) | A kind of highly-breathable face brick and preparation method thereof | |
| CN104261861B (en) | A kind of insulating light wall slab and preparation method thereof | |
| CN104402375A (en) | Interior decoration mortar | |
| CN102284988B (en) | Preparation method for humidity adjusting fiberboard | |
| CN101781098B (en) | Waterproof closed-cell expanded perlite | |
| CN109467382B (en) | Based on gamma-C2S conductive material and preparation method thereof | |
| CN103483008B (en) | Surface coating method of strontium ferrite particles for preparing novel artificial snow | |
| CN107052228A (en) | A kind of high-efficiency and precision casts shell coating quick dry agent processed | |
| CN107777979A (en) | A kind of natural halloysite clay aeroge for building heat preservation and preparation method thereof | |
| CN108530035A (en) | A kind of high-performance domestic ceramics and preparation method thereof | |
| CN104211383A (en) | Method for sintering Zn2SiO4 microwave medium ceramic at low temperature | |
| CN102515713A (en) | Method for preparing light ceramsite by using glass wastes as raw materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20171212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |