CN106996053A - A kind of high heat conduction mica paper manufacture method - Google Patents
A kind of high heat conduction mica paper manufacture method Download PDFInfo
- Publication number
- CN106996053A CN106996053A CN201710160453.4A CN201710160453A CN106996053A CN 106996053 A CN106996053 A CN 106996053A CN 201710160453 A CN201710160453 A CN 201710160453A CN 106996053 A CN106996053 A CN 106996053A
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- China
- Prior art keywords
- mica
- paper
- heat conduction
- high heat
- manufacture method
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F13/00—Making discontinuous sheets of paper, pulpboard or cardboard, or of wet web, for fibreboard production
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
Abstract
A kind of high heat conduction mica paper manufacture method, comprises the following steps：High-quality mica material is heat-treated twice；Then crushed by crushing system twice；Mica lodicule after broken is classified by three road cyclones and three road classifying screens；Adsorption treatment is carried out with the high magnetic of Gauss, cultivates, activate electrostatic between scale；Mica lodicule is imported into fine pulp tub, nanoscale high heat conduction silica gel and polyethylene glycol oxide are added in fine pulp tub and is fully stirred evenly；Paper machine is extracted to be manufactured paper with pulp；Press polish processing is carried out to mica paper；Lower cylinder is batched, cut.Take the mica paper density of this method manufacture can be from 0.16*103KG/M3To 2.12*103KG/M3, the thermal conductivity factor of the mica paper of new technology preparation is brought up to 0.865W/mK from 0.236W/mK.
Description
Technical field
The present invention relates to a kind of mica paper manufacture method, more particularly, to a kind of high heat conduction mica paper manufacture method.
Background technology
Mica paper is a kind of insulating materials of high-quality, with nontoxic, tasteless, high temperature resistant, high pressure, ageing-resistant, corrosion-resistant, exhausted
Edge intensity requirement reaches A grades of product, and particularly its high temperature resistant and re-workability is that other materials is irreplaceable, mica
Paper is widely used in the production of high voltage mica capacitor in electric utility, however, existing mica paper is in the application of high-voltage motor
Temperature thermal conductivity factor is not high, causes electrical property, mechanical performance and the service life reduction of insulation, and insulating part easily to loosen,
Therefore, the heat resistance and thermal conductivity of its insulating materials of mica paper are needed while considering and improving.
The content of the invention
The purpose of the present invention is exactly that there is provided a kind of high heat conduction mica paper manufacture method in order to overcome the deficiencies in the prior art.
To achieve the above object, the invention provides following technical scheme：
A kind of high heat conduction mica paper manufacture method, comprises the following steps：
1. high-quality mica material is heat-treated twice；
2. the mica material after 1. step is heat-treated twice is crushed by crushing system twice；
3. the mica lodicule after 2. step is crushed twice is classified by three road cyclones and three road classifying screens；
4. by step 3. by cyclone and the mica lodicule of sieve classification, adsorption treatment, processing slurry are carried out with the high magnetic of 12000 Gausses
Cultivated in piece while metal ion materials, activate electrostatic between scale；
5. by step, 4. adsorption treatment mica lodicule imports fine pulp tub, and the 3-8% nanoscales that mica flake is added in fine pulp tub are high
Heat conductive silica gel and polyethylene glycol oxide, are fully stirred evenly；
6. the mica slurry after 5. step being added into nanoscale high heat conduction silica gel and polyethylene glycol oxide and fully being stirred evenly, extracts paper machine
Manufactured paper with pulp；
7. the mica paper 6. step manufactured paper with pulp, is equipped with two cooling cylinders after paper machine dryer, and each cooling cylinder face increases a set of press polish dress
Put, press polish processing is carried out to mica paper；
8. cylinder under the mica paper after step 7. press polish processing is batched, cut.
A kind of described high heat conduction mica paper manufacture method, it is characterised in that：Step 1. described mica material twice at heat
The temperature of reason is 400 DEG C and 200 DEG C, and kept for 2 hours and 1 hour respectively.
A kind of described high heat conduction mica paper manufacture method, 2. described mica material passes through crushing system twice and carried out step
Broken, first break pressure is 4MPa, and second of cracking pressure is 2MPa.
A kind of described high heat conduction mica paper manufacture method, 3. described cyclone pressure is 3MPa to step, is classified sieve mesh
Number is 80 mesh.
A kind of described high heat conduction mica paper manufacture method, the step 6. nanoscale high heat conduction silica gel of described addition and poly-
Ethylene oxide accounts for the 3-8% of mica flake.
The beneficial effects of the invention are as follows：
Mica paper density can be from 0.16*103KG/M3To 2.12*103KG/M3, make the thermal conductivity factor of the mica paper of new technology preparation
0.865W/mK is brought up to from 0.236W/mK, high heat conduction mica paper is made into mica tape is applied to wind turbine, large-scale waterpower
In generator and large-size machine insulating barrier, it can effectively improve and extend high-rating generator operating maintenance service time and use the longevity
Life.
Embodiment
With reference to embodiment, the invention will be further described.
Mica material is heat-treated by high heat conduction mica paper in paper-making process, and high-quality mica material first is passed through into 400 degree of temperature
Degree heat treatment 2 hours, then mica material temperature degree is down to 200 degree, kept for 1 hour, one is the non-mica impuritiess composition of processing, and two are
By activate mica material the crystallization water improve slurrying scale radius-thickness ratio.
Mica material after heat treatment is crushed by second-time breakage system, first break pressure is 4MPa, second
Secondary cracking pressure is 2MPa, is beneficial to improve the bonded area between scale radius-thickness ratio, increase scale by two-stage system slurry point stripping, increases
Electrostatic adsorption between scale, improves product density 40%.
Broken rear lodicule is classified by three road cyclones and three road classifying screens, cyclone pressure is 3MPa, is classified sieve mesh
Number is 80.
Carried out cultivating while metal ion materials in adsorption treatment, processing lodicule, activating scale with the high magnetic of 12000 Gausses
Between electrostatic.
The 3-8% nanoscale high heat conduction silica gel and polyethylene glycol oxide of mica flake are added in fine pulp tub, is sufficiently stirred for, fills out
The air gap between scale is filled, increases heat-conductive bridges, the thermal conductivity factor of the mica paper of new technology preparation is brought up to from 0.236W/mK
0.865W/m·K。
Warehouse is manufactured paper with pulp to paper machine.
Two cooling cylinders are equipped with after paper machine dryer, each cooling cylinder face increases a set of calendering device, by mica paper density from
0.16*103KG/M3To 2.12*103KG/M3。
Lower cylinder is batched, cut.
Mica tape is made in high heat conduction mica paper and is applied to wind turbine, large-scale hydroelectric generator and large-size machine insulating barrier
In, it can effectively improve and extend high-rating generator operating maintenance service time and service life.
Claims (5)
1. a kind of high heat conduction mica paper manufacture method, it is characterised in that：The production method comprises the following steps：
1. high-quality mica material is heat-treated twice；
2. the mica material after 1. step is heat-treated twice is crushed by crushing system twice；
3. the mica lodicule after 2. step is crushed twice is classified by three road cyclones and three road classifying screens；
4. by step 3. by cyclone and the mica lodicule of sieve classification, adsorption treatment, processing slurry are carried out with the high magnetic of 12000 Gausses
Cultivated in piece while metal ion materials, activate electrostatic between scale；
5. by step, 4. adsorption treatment mica lodicule imports fine pulp tub, and the 3-8% nanoscales that mica flake is added in fine pulp tub are high
Heat conductive silica gel and polyethylene glycol oxide, are fully stirred evenly；
6. the mica slurry after 5. step being added into nanoscale high heat conduction silica gel and polyethylene glycol oxide and fully being stirred evenly, extracts paper machine
Manufactured paper with pulp；
7. the mica paper 6. step manufactured paper with pulp, is equipped with two cooling cylinders after paper machine dryer, and each cooling cylinder face increases a set of press polish dress
Put, press polish processing is carried out to mica paper；
8. cylinder under the mica paper after step 7. press polish processing is batched, cut.
2. a kind of high heat conduction mica paper manufacture method according to claim 1, it is characterised in that：Step 1. described mica
It is 400 DEG C and 200 DEG C to expect the temperature being heat-treated twice, and is kept for 2 hours and 1 hour respectively.
3. a kind of high heat conduction mica paper manufacture method according to claim 1, it is characterised in that：Step 2. described mica
Material is crushed by crushing system twice, and first break pressure is 4MPa, and second of cracking pressure is 2MPa.
4. a kind of high heat conduction mica paper manufacture method according to claim 1, it is characterised in that：Step 3. described eddy flow
Device pressure is 3MPa, and classification grit number is 80 mesh.
5. a kind of high heat conduction mica paper manufacture method according to claim 1, it is characterised in that：Step 6. described addition
Nanoscale high heat conduction silica gel and polyethylene glycol oxide account for the 3-8% of mica flake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710160453.4A CN106996053A (en) | 2017-03-17 | 2017-03-17 | A kind of high heat conduction mica paper manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710160453.4A CN106996053A (en) | 2017-03-17 | 2017-03-17 | A kind of high heat conduction mica paper manufacture method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106996053A true CN106996053A (en) | 2017-08-01 |
Family
ID=59431491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710160453.4A Pending CN106996053A (en) | 2017-03-17 | 2017-03-17 | A kind of high heat conduction mica paper manufacture method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106996053A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648152A (en) * | 2020-05-28 | 2020-09-11 | 湖北平安电工股份有限公司 | Production method of high-density mica paper |
| CN111778765A (en) * | 2020-06-19 | 2020-10-16 | 通城县云水云母科技有限公司 | High-heat-resistance mica paper and manufacturing method thereof |
| CN114214863A (en) * | 2021-12-20 | 2022-03-22 | 北京交通大学 | Method for preparing high-thermal-conductivity mica paper based on spray freezing casting technology |
| CN114232388A (en) * | 2021-12-20 | 2022-03-25 | 北京交通大学 | Method for preparing high-thermal-conductivity mica paper based on freezing casting technology |
| CN114318938A (en) * | 2021-10-29 | 2022-04-12 | 通城县云水云母科技有限公司 | High-thermal-conductivity aramid fiber mica paper and manufacturing method thereof |
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| CN1050751A (en) * | 1990-06-06 | 1991-04-17 | 沙河市造纸瓷土厂 | Papermaking paint level sericite china clay and method for making thereof |
| CN1163960A (en) * | 1996-03-22 | 1997-11-05 | 曾其祥 | Method for removing spots on mica papermaking paper surface and its equipment |
| US20060019081A1 (en) * | 2002-12-13 | 2006-01-26 | Levit Mikhail R | Mica sheet and tape |
| CN1924192A (en) * | 2006-09-22 | 2007-03-07 | 四川美丰云母工业有限责任公司 | Preparation method and device of high voltage raw powder mica paper |
| CN103469673A (en) * | 2013-09-11 | 2013-12-25 | 湖南南杰电材科技股份有限公司 | Preparation method and application of heat conduction mica paper |
| CN103741541A (en) * | 2014-01-11 | 2014-04-23 | 湖北平安电工材料有限公司 | Method for manufacturing mica paper by low-temperature calcining |
| CN104452428A (en) * | 2014-11-17 | 2015-03-25 | 通城县中天云母制品有限公司 | Production method of calcining type high-voltage-resisting mica paper |
| CN105239444A (en) * | 2014-07-12 | 2016-01-13 | 平江县威派云母绝缘材料有限公司 | Preparation process for composite type mica paper for motor belt |
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2017
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1050751A (en) * | 1990-06-06 | 1991-04-17 | 沙河市造纸瓷土厂 | Papermaking paint level sericite china clay and method for making thereof |
| CN1163960A (en) * | 1996-03-22 | 1997-11-05 | 曾其祥 | Method for removing spots on mica papermaking paper surface and its equipment |
| US20060019081A1 (en) * | 2002-12-13 | 2006-01-26 | Levit Mikhail R | Mica sheet and tape |
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| CN103741541A (en) * | 2014-01-11 | 2014-04-23 | 湖北平安电工材料有限公司 | Method for manufacturing mica paper by low-temperature calcining |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648152A (en) * | 2020-05-28 | 2020-09-11 | 湖北平安电工股份有限公司 | Production method of high-density mica paper |
| CN111778765A (en) * | 2020-06-19 | 2020-10-16 | 通城县云水云母科技有限公司 | High-heat-resistance mica paper and manufacturing method thereof |
| CN114318938A (en) * | 2021-10-29 | 2022-04-12 | 通城县云水云母科技有限公司 | High-thermal-conductivity aramid fiber mica paper and manufacturing method thereof |
| CN114214863A (en) * | 2021-12-20 | 2022-03-22 | 北京交通大学 | Method for preparing high-thermal-conductivity mica paper based on spray freezing casting technology |
| CN114232388A (en) * | 2021-12-20 | 2022-03-25 | 北京交通大学 | Method for preparing high-thermal-conductivity mica paper based on freezing casting technology |
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Application publication date: 20170801 |