CN102831990A - Method of pressing B stage resin mica product foil - Google Patents
Method of pressing B stage resin mica product foil Download PDFInfo
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- CN102831990A CN102831990A CN2012102750639A CN201210275063A CN102831990A CN 102831990 A CN102831990 A CN 102831990A CN 2012102750639 A CN2012102750639 A CN 2012102750639A CN 201210275063 A CN201210275063 A CN 201210275063A CN 102831990 A CN102831990 A CN 102831990A
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- paper tinsel
- mica products
- cold water
- products paper
- stage resin
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Abstract
The invention discloses a method of pressing a B stage resin mica product foil. The method is characterized in that pressure is added at the temperature time point closing to the softening point of resin, so that the mobility of resin adhesive is just right, the glue is uniform to distribute and just right in permeability, therefore, the product is good in integrity, and voltage is high. Because heating time is relatively less, the product in a cool state (at the softening point) is good in plasticity, good in appearance tidiness; and the qualified rate of the product is virtually improved. And meanwhile, as the flowing glue of the process is less, the loss of the glue is less and the cost is reduced; the qualified rate of the product is increased by about 5%; and the loss of the glue can be reduced by about 4%.
Description
Technical field
The invention belongs to the mica products field, relate to a kind of drawing method of mica products paper tinsel, especially a kind of drawing method of B stage resin mica products paper tinsel.
Background technology
At present; The B stage resin mica products that insulation is produced in the industry is preforming, requires to have plasticity (deliquescing of being heated can become required form), in using to motor, electrical apparatus industry once more moulding until curing; Such as present more representative product is the micafolium product; Electrical machinery plant is used as rotor copper bar main insulation, and electrical machinery plant's micafolium is heated on heating platform (general 130～150 ℃) deliquescing is rolled onto on the rotor copper bar; Be rolled onto and need the number of plies by the design insulation thickness, again at 180～200 ℃ of pressed curing moldings.See from application requirements, this type of insulating material is required under the qualified prerequisite of technical indicator, must flat appearance, the glue amount is even, and plasticity is good, and electrical strength is high.
The production method of this type of B stage mica products in the insulation industry; Be with mica paper (or sheet) substantially on special equipment; Supporting material (glass cloth, all kinds of films etc.) coat the resin glue that needs through curing after, be cut into the size of needs; Fold material by technological requirement, place on the press, be heated, pressurized, preforming, cooling, discharging.Product after the discharging is dry and comfortable, crisp firmly and not, resin glue be in the B stage be heated (more than 100 ℃) want deliquescing, guarantee to mould and process the shape that needs using factory, be heated once more at last, pressurized is to full solidification.Concrete production method is multiple in the insulation industry, and one of key technology is a suppression process, and generally this operation is on the hydraulic press with heating, plus-pressure, cooling device, to carry out and accomplish.Roughly program is that (look the resin index and decide, F, H grade resins are to be warmed up to 110～130 ℃ to warm-up phase mostly; 30～60 minutes.); The plus-pressure stage (progressively rising to unit pressure 5～10kg/m, 20～40 minutes); Cooling stage (logical cold water is noted keep-uping pressure to room temperature).This operation is handled improper, and the big or glue of gummosis often occurs and do not flow and open, poor plasticity or soft excessively, quality problems such as uneven thickness cause qualification rate low.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art; A kind of drawing method of B stage resin mica products paper tinsel is provided; This method has proposed a kind of new process to being heated, pressurizeing the quality problems such as the glue amount inequality that causes, the big or small inequality of gummosis, poor plasticity that do not match in the compacting.
The objective of the invention is to solve through following technical scheme:
A kind of pressing process method of B stage resin mica products paper tinsel may further comprise the steps:
1) the mica products paper tinsel is heated in hydraulic press after, feed cold water and cool off;
2) chilling temperature is reduced near behind the resin softening point, stops to feed cold water;
3) after cold water stopped to feed, increase pressure made unit pressure reach 5 ~ 10kg/m again;
4) after the completion supercharging, make mica products paper tinsel natural cooling;
5) be with under the pressure condition more at last, continuing to feed cold water, discharging after room temperature.
Above-mentioned steps 1) in, the mica products paper tinsel is 30 ~ 50 minutes at the hydraulic press heated time.
Above-mentioned steps 2) in, resin softening point is 80 ~ 90 ℃.
Above-mentioned steps 3) in, cold water begins increase pressure after stopping to feed back 10 minutes, and in 20 minutes, accomplishes supercharging.
Above-mentioned steps 4) in, naturally cools to 70 ~ 80 ℃.
The present invention makes the resin glue flowability just in time owing to the temperature-time point at nearly resin softening point adds upward pressure, and glue is evenly distributed, and this moment, permeability was also just right, made the product good integrity, and voltage is just high.Because heated time is few relatively, all right in the plasticity of cold conditions (softening point place) product slightly, outward appearance is carefully and neatly spent, and has improved the qualification rate of product virtually.Because this technology gummosis is few, the glue loss is few, has reduced cost again simultaneously, and the qualification rate of this product approximately can improve 5%, and the glue loss can reduce about 4%.
Embodiment
In the face of doing, the present invention describes in further detail down:
The pressing process method of this B stage resin mica products paper tinsel may further comprise the steps:
1) the mica products paper tinsel is heated in hydraulic press after, feed cold water and cool off;
2) chilling temperature is reduced near behind the resin softening point, stops to feed cold water;
3) after cold water stopped to feed, increase pressure made unit pressure reach 5 ~ 10kg/m again;
4) after the completion supercharging, make mica products paper tinsel natural cooling;
5) be with under the pressure condition more at last, continuing to feed cold water, discharging after room temperature.
Above-mentioned steps 1) in, the mica products paper tinsel is 30 ~ 50 minutes at the hydraulic press heated time.Step 2) in, resin softening point is 80 ~ 90 ℃.In the step 3), cold water begins increase pressure after stopping to feed back 10 minutes, and in 20 minutes, accomplishes supercharging.In the step 4), naturally cool to 70 ~ 80 ℃.
The present invention makes the resin glue flowability just in time owing to the temperature-time point at nearly resin softening point adds upward pressure, and glue is evenly distributed, and this moment, permeability was also just right, made the product good integrity, and voltage is just high.Because heated time is few relatively, all right in the plasticity of cold conditions (softening point place) product slightly, outward appearance is carefully and neatly spent, and has improved the qualification rate of product virtually.Because this technology gummosis is few, the glue loss is few, has reduced cost again simultaneously, and the qualification rate of this product approximately can improve 5%, and the glue loss can reduce about 4%.
Claims (5)
1. the pressing process method of a B stage resin mica products paper tinsel is characterized in that, may further comprise the steps:
1) the mica products paper tinsel is heated in hydraulic press after, feed cold water and cool off;
2) chilling temperature is reduced near behind the resin softening point, stops to feed cold water;
3) after cold water stopped to feed, increase pressure made unit pressure reach 5 ~ 10kg/m again;
4) after the completion supercharging, make mica products paper tinsel natural cooling;
5) be with under the pressure condition more at last, continuing to feed cold water, discharging after room temperature.
2. the pressing process method of a kind of B stage resin mica products paper tinsel according to claim 1 is characterized in that: in the said step 1), the mica products paper tinsel is 30 ~ 50 minutes at the hydraulic press heated time.
3. according to the pressing process method of the described a kind of B stage resin mica products paper tinsel of claim 1, it is characterized in that: step 2) in, said resin softening point is 80 ~ 90 ℃.
4. according to the pressing process method of the described a kind of B stage resin mica products paper tinsel of claim 1, it is characterized in that: in the step 3), cold water begins increase pressure after stopping to feed back 10 minutes, and in 20 minutes, accomplishes supercharging.
5. according to the pressing process method of the described a kind of B stage resin mica products paper tinsel of claim 1, it is characterized in that: in the step 4), naturally cool to 70 ~ 80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102750639A CN102831990A (en) | 2012-08-03 | 2012-08-03 | Method of pressing B stage resin mica product foil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102750639A CN102831990A (en) | 2012-08-03 | 2012-08-03 | Method of pressing B stage resin mica product foil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102831990A true CN102831990A (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102750639A Pending CN102831990A (en) | 2012-08-03 | 2012-08-03 | Method of pressing B stage resin mica product foil |
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| CN (1) | CN102831990A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506144A (en) * | 2021-12-31 | 2022-05-17 | 江苏双马智能科技有限公司 | Hot pressing process of mica plate for new energy battery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1685775A (en) * | 2003-01-14 | 2005-10-19 | 松下电器产业株式会社 | Circuit board and process for producing the same |
| CN102152554A (en) * | 2010-06-23 | 2011-08-17 | 浙江理工大学 | Method for preparing thermoplastic fiber-hybrid woven composite |
| WO2012041838A1 (en) * | 2010-09-27 | 2012-04-05 | Henkel Ag & Co. Kgaa | Bonding using hot-melt adhesives |
-
2012
- 2012-08-03 CN CN2012102750639A patent/CN102831990A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1685775A (en) * | 2003-01-14 | 2005-10-19 | 松下电器产业株式会社 | Circuit board and process for producing the same |
| CN102152554A (en) * | 2010-06-23 | 2011-08-17 | 浙江理工大学 | Method for preparing thermoplastic fiber-hybrid woven composite |
| WO2012041838A1 (en) * | 2010-09-27 | 2012-04-05 | Henkel Ag & Co. Kgaa | Bonding using hot-melt adhesives |
Non-Patent Citations (1)
| Title |
|---|
| 俞翔霄等: "《环氧树脂电绝缘材料》", 28 February 2007, 化学工业出版社, article "环氧云母箔", pages: 293-294 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506144A (en) * | 2021-12-31 | 2022-05-17 | 江苏双马智能科技有限公司 | Hot pressing process of mica plate for new energy battery |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |