CN104373761A - Method of producing vacuum insulating plates from soaked centrifugal glass wool - Google Patents
Method of producing vacuum insulating plates from soaked centrifugal glass wool Download PDFInfo
- Publication number
- CN104373761A CN104373761A CN201310348903.4A CN201310348903A CN104373761A CN 104373761 A CN104373761 A CN 104373761A CN 201310348903 A CN201310348903 A CN 201310348903A CN 104373761 A CN104373761 A CN 104373761A
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- CN
- China
- Prior art keywords
- vacuum heat
- glass wool
- soaked
- centrifugal
- sulfuric acid
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
Abstract
The invention discloses a method of producing vacuum insulating plates from soaked centrifugal glass wool. The method includes: soaking centrifugal glass wool in sulfuric acid solution for a certain period of time and subjecting the soaked centrifugal glass wool to forming. The soaked centrifugal glass wool has better insulating property; insulating performance of the vacuum insulating plates is improved. The method is modified based on the prior art, is simple and feasible and suitable for large-scale popularization and is low in consumption, thus production cost is correspondingly reduced.
Description
Technical field
The invention belongs to thermoinsulation material field of engineering technology, specifically relate to a kind of method of soaking centrifugal cotton making vacuum heat-insulating plate.
Background technique
Vacuum heat-insulating plate is core material with glass fibre, take barrier composite films as packaging bag, is prepared from after vacuum package.Because it improves degree of vacuum in plate to greatest extent, reducing the convection current of gas thus realize thermal insulation, therefore having extremely low thermal conductivity and excellent thermal insulation property, is current state-of-the-art thermal insulation material in the world.
The glass wool used in current vacuum heat-insulating plate is all that centrifugal cotton and flame are cotton substantially, centrifugally glass-wool the glass centrifugal injection method technique being in molten state is carried out the filamentary material made of fibrosis spraying thermosetting resin, again through heat cure deep processing process, can be made into the series product served many purposes.Because centrifugally glass-wool quality is soft, fiber is fine, not Diazolidinyl Urea in construction, thus deeply welcomes by unit in charge of construction, becomes the first-selected product of insulation.
But if directly use the centrifugal cotton without any process to complete above-mentioned steps, then the core performance obtained can not be guaranteed, and the adiabaticity of vacuum heat-insulating plate also can not be fine.Therefore, be necessary to invent a kind of method process centrifugal cotton to obtain the vacuum heat-insulating plate of superior performance.
Publication number be CN102330475A patent of invention on disclose a kind of high-performance and low-cost manufacture method of core material of vacuum heat insulation plate, concrete steps are: by centrifuge method produce glass fibre cotton making beating, dilution, online, dehydration forming, pressure roller sizing, negative pressure of vacuum dewater, oven dry, cool, cutting.The glass fibre cotton that the present invention adopts 100% centrifuge method to produce is as high-performance and low-cost core material of vacuum heat insulation plate raw material, and the core material of vacuum heat insulation plate thermal conductivity produced is at 0.003-0.008W/m.k, and adiabatic coefficient improves greatly; And the thickness of core is 0.5-30mm, it is thinner that thickness also becomes; Diameter 3.5-5um simultaneously, the glass fibre cotton cost of material of length 5-20mm is low, and overall cost is low, reduces the holistic cost of vacuum heat-insulating plate.
Publication number be CN101775850A patent of invention on disclose a kind of manufacture method of core material of vacuum heat insulation plate.The present invention is directed to the problem that the cost of prior art core material of vacuum heat insulation plate existence is high, provide a kind of manufacture method of core material of vacuum heat insulation plate, comprising the steps: rock wool fibers making beating online; Shaping roll extrusion; Vacuum dehumidifies; Cooling is become a useful person; The present invention adopts rock wool fibers, the core material of vacuum heat insulation plate produced, can meet the performance that all needs of core material of vacuum heat insulation plate possess, and also has the remarkable advantages such as fire-retardant, sound-absorbing, the more important thing is that its production technology is simple, the requirement that construction industry is produced in enormous quantities fast can be met.
Although above-mentioned publication provides the method utilizing glass fibre cotton to make core material of vacuum heat insulation plate from different perspectives, if but directly use the centrifugal cotton without any process to complete above-mentioned steps, the core performance then obtained can not be guaranteed, and the adiabaticity of vacuum heat-insulating plate also can not be fine.Therefore, be necessary to invent a kind of method process centrifugal cotton to obtain the vacuum heat-insulating plate of superior performance.
Summary of the invention
Object of the present invention is intended to overcome the deficiencies in the prior art, and the vacuum heat-insulating plate heat insulation effect providing a kind of method process centrifugal cotton to make to make is more superior.
Technological scheme: a kind of method of soaking centrifugal cotton making vacuum heat-insulating plate of the present invention, comprises the steps:
(1) sulfuric acid solution of certain pH value is configured;
(2) appropriate centrifugal cotton is immersed in sulfuric acid solution;
(3) take out centrifugal cotton, sent into pond with slurry and be diluted with water;
(4) slurry is sent into breast box, then adopt forming net to its dehydration forming, form core blank;
(5) pressure roller is adopted to make core blank surface smooth and consistency of thickness;
(6) moisture removed to core blank and send into drying in oven, carrying out cutting on request;
(7) core obtained is put into the obstructing film bag that three limits seal, carry out the heat-sealing on the 4th limit, obtain vacuum heat-insulating plate.
In step described in the present invention (1), the pH value of the sulfuric acid solution of configuration is 2 ~ 4.
In step described in the present invention (2), the soak time of centrifugal cotton is 5 ~ 50min.
In step described in the present invention (3), the concentration of dilution is 0.3 ~ 1.0%.
Effect: the present invention compared with prior art, has the following advantages:
(1) after soaking, the heat insulation effect of centrifugal cotton becomes better, improves the heat-insulating property of vacuum heat-insulating plate;
(2) this technique is improved in prior art, simple, is applicable to large-scale promotion;
(3) this technique is spent with less, relatively can reduce cost of production.
Embodiment
Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims and limited.
Embodiment
Use a kind of diameter for 4um, length is the core of the centrifugal cotton making vacuum heat-insulating plate of 10mm.
A kind of method of soaking centrifugal cotton making vacuum heat-insulating plate of the present invention, comprises the steps:
(1) configuring pH value is the sulfuric acid solution of 3;
(2) appropriate centrifugal cotton is immersed in 20min in sulfuric acid solution;
(3) take out centrifugal cotton, sent into pond with slurry and be diluted with water, diluted concentration to 0.3 ~ 1.0%;
(4) slurry is sent into breast box, then adopt forming net to its dehydration forming, form core blank;
(5) pressure roller is adopted to make core blank surface smooth and consistency of thickness;
(6) moisture removed to core blank and send into drying in oven, carrying out cutting on request;
(7) core obtained is put into the obstructing film bag that three limits seal, carry out the heat-sealing on the 4th limit, obtain vacuum heat-insulating plate.
The above embodiment, it is only preferred embodiment of the present invention, be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.In every case be the content not departing from technical solution of the present invention, any type of simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (4)
1. soak the method that centrifugal cotton makes vacuum heat-insulating plate, it is characterized in that comprising the steps:
(1) sulfuric acid solution of certain pH value is configured;
(2) appropriate centrifugal cotton is immersed in sulfuric acid solution;
(3) take out centrifugal cotton, sent into pond with slurry and be diluted with water;
(4) slurry is sent into breast box, then adopt forming net to its dehydration forming, form core blank;
(5) pressure roller is adopted to make core blank surface smooth and consistency of thickness;
(6) moisture removed to core blank and send into drying in oven, carrying out cutting on request;
(7) core obtained is put into the obstructing film bag that three limits seal, carry out the heat-sealing on the 4th limit, obtain vacuum heat-insulating plate.
2. method according to claim 1, is characterized in that: in described step (1), the pH value of the sulfuric acid solution of configuration is 2 ~ 4.
3. method according to claim 1, is characterized in that: in described step (2), the soak time of centrifugal cotton is 5 ~ 50min.
4. method according to claim 1, is characterized in that: in described step (3), the concentration of dilution is 0.3 ~ 1.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310348903.4A CN104373761A (en) | 2013-08-12 | 2013-08-12 | Method of producing vacuum insulating plates from soaked centrifugal glass wool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310348903.4A CN104373761A (en) | 2013-08-12 | 2013-08-12 | Method of producing vacuum insulating plates from soaked centrifugal glass wool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373761A true CN104373761A (en) | 2015-02-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310348903.4A Pending CN104373761A (en) | 2013-08-12 | 2013-08-12 | Method of producing vacuum insulating plates from soaked centrifugal glass wool |
Country Status (1)
| Country | Link |
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| CN (1) | CN104373761A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500924A (en) * | 2015-01-06 | 2015-04-08 | 青岛科瑞新型环保材料有限公司 | Vacuum heat insulation board and manufacturing method thereof |
| CN105570619A (en) * | 2015-12-18 | 2016-05-11 | 滁州银兴新材料科技有限公司 | Method for manufacturing vacuum insulation board core material with low cost |
| CN106592799A (en) * | 2016-12-21 | 2017-04-26 | 安徽百特新材料科技有限公司 | VIP vacuum thermal insulating board |
| CN107022921A (en) * | 2017-04-17 | 2017-08-08 | 安徽百特新材料科技有限公司 | A kind of AB inorfils core plate processing method |
| CN107354804A (en) * | 2017-06-29 | 2017-11-17 | 合肥华凌股份有限公司 | Recycle the method and its application of core material of vacuum heat insulation plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040253406A1 (en) * | 2003-04-02 | 2004-12-16 | Nisshinbo Industries, Inc. | Vacuum heat insulating material and manufacturing method therefor |
| CN101058961A (en) * | 2006-12-13 | 2007-10-24 | 应建明 | Low-temperature thermal insulation paper, preparation method and application thereof |
| CN101775850A (en) * | 2010-01-22 | 2010-07-14 | 翟传伟 | Manufacture method of core material of vacuum heat insulation plate |
| CN102080755A (en) * | 2009-12-01 | 2011-06-01 | 福建赛特新材股份有限公司 | Core material, preparation method thereof and vacuum insulated panel using same |
| CN102330475A (en) * | 2011-07-13 | 2012-01-25 | 苏州维艾普新材料有限公司 | Vacuum insulation panel core material with high performance and low cost and manufacturing method thereof |
| CN102733253A (en) * | 2012-06-08 | 2012-10-17 | 青岛科瑞新型环保材料有限公司 | Manufacture method of glass cotton core material |
-
2013
- 2013-08-12 CN CN201310348903.4A patent/CN104373761A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040253406A1 (en) * | 2003-04-02 | 2004-12-16 | Nisshinbo Industries, Inc. | Vacuum heat insulating material and manufacturing method therefor |
| CN101058961A (en) * | 2006-12-13 | 2007-10-24 | 应建明 | Low-temperature thermal insulation paper, preparation method and application thereof |
| CN102080755A (en) * | 2009-12-01 | 2011-06-01 | 福建赛特新材股份有限公司 | Core material, preparation method thereof and vacuum insulated panel using same |
| CN101775850A (en) * | 2010-01-22 | 2010-07-14 | 翟传伟 | Manufacture method of core material of vacuum heat insulation plate |
| CN102330475A (en) * | 2011-07-13 | 2012-01-25 | 苏州维艾普新材料有限公司 | Vacuum insulation panel core material with high performance and low cost and manufacturing method thereof |
| CN102733253A (en) * | 2012-06-08 | 2012-10-17 | 青岛科瑞新型环保材料有限公司 | Manufacture method of glass cotton core material |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500924A (en) * | 2015-01-06 | 2015-04-08 | 青岛科瑞新型环保材料有限公司 | Vacuum heat insulation board and manufacturing method thereof |
| CN104500924B (en) * | 2015-01-06 | 2016-09-07 | 青岛科瑞新型环保材料有限公司 | A kind of vacuum heat-insulating plate and manufacture method thereof |
| CN105570619A (en) * | 2015-12-18 | 2016-05-11 | 滁州银兴新材料科技有限公司 | Method for manufacturing vacuum insulation board core material with low cost |
| CN106592799A (en) * | 2016-12-21 | 2017-04-26 | 安徽百特新材料科技有限公司 | VIP vacuum thermal insulating board |
| CN107022921A (en) * | 2017-04-17 | 2017-08-08 | 安徽百特新材料科技有限公司 | A kind of AB inorfils core plate processing method |
| CN107354804A (en) * | 2017-06-29 | 2017-11-17 | 合肥华凌股份有限公司 | Recycle the method and its application of core material of vacuum heat insulation plate |
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Application publication date: 20150225 |