CN203172038U - Ultrathin wide-width polytetrafluoroethylene turning thin film - Google Patents
Ultrathin wide-width polytetrafluoroethylene turning thin film Download PDFInfo
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- CN203172038U CN203172038U CN 201320122537 CN201320122537U CN203172038U CN 203172038 U CN203172038 U CN 203172038U CN 201320122537 CN201320122537 CN 201320122537 CN 201320122537 U CN201320122537 U CN 201320122537U CN 203172038 U CN203172038 U CN 203172038U
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Abstract
The utility model relates to an ultrathin wide-width polytetrafluoroethylene turning thin film belonging to the technical field of a functional plastic thin film. The thickness of the turning thin film is more than or equal to 0.02mm and is less than or equal to 0.50mm; the width of the thin film is more than or equal to 200mm and is less than or equal to 2000mm; a blank of the thin film is formed by pressing and sintering polytetrafluoroethylene resin, and is of a hollow cylindrical structure; and the obtained blank is turned or rotatably cut to be machined into a polytetrafluoroethylene thin film. Compared with the prior art, the thin film has the advantages that the defect that the width of a conventional turning thin film cannot exceed 1 meter is overcome and the thickness of the thin film is also reduced. The turning thin film disclosed by the utility model is uniform in thickness, is not easy to curl and has the good performances such as impact resistance, abrasion resistance, chemical corrosion resistance and self lubrication; and the ultrathin wide-width polytetrafluoroethylene turning thin film can be used in an environment with the temperature ranging from +250 DEG C to -180 DEG C for long time, and the ultrathin and wide-width requirements on the polytetrafluoroethylene thin film caused by a market can be basically met.
Description
Technical field
The utility model relates to the functional plastics film, especially a kind of ultra-thin breadth polytetrafluoroethylene (PTFE) turning film.
Background technology
Polytetrafluoroethylene (PTFE) is commonly called as " plastics king ", and polytetrafluoroethylene (PTFE) has special superior characteristic among various plastics.For example: its hear resistance, lower temperature resistance, resistance to chemical reagents, electric insulation and high frequency characteristics etc. are superior especially, but also have unique non-adhesive, sealing, low frictional properties and good ageing resistance.Because these excellent characteristic, so the polytetrafluoroethylene (PTFE) product not only is applied to chemical industry, electric, electronics industry and mechanical industry, but also is widely used in the every field from Aeronautics and Astronautics, defense industry to medical treatment, household supplies.
The manufacturing of polytetrafluoroethylene film has stretching and two kinds of methods of turning usually, existing polytetrafluoroethylene (PTFE) turning film is owing to be subjected to the restriction of production equipment and processing technology, the width of turning film is generally less than 1 meter, thickness can not satisfy those to the requirement of polytetrafluoroethylene film ultra-thin breadth usually greater than 0.1 millimeter.
The utility model content
The purpose of this utility model provides a kind of polytetrafluoroethylene film of ultra-thin breadth, by the polyflon compression molding, obtains blank through sintering, blank is obtained the polytetrafluoroethylene film of ultra-thin breadth through turning processing again.
The purpose of this utility model is achieved by the following technical solution:
Ultra-thin breadth polytetrafluoroethylene (PTFE) turning film, the thickness of described film is more than or equal to 0.02 millimeter, smaller or equal to 0.50 millimeter; The width of film is more than or equal to 200 millimeters, smaller or equal to 2000 millimeters.
As optimal technical scheme of the present utility model, described film obtains blank by polyflon through pressed compact, sintering, again the gained blank is processed into polytetrafluoroethylene film, and described blank is the cylindrical structural of hollow.
As optimal technical scheme of the present utility model, described film is to be processed through turning or rotary-cut by the polytetrafluoroethylene (PTFE) blank.
The beneficial effects of the utility model are: with respect to prior art, the utility model with polyflon through compression molding, sintering obtains blank, again blank is directly obtained the polytetrafluoroethylene film of ultra-thin breadth through turning processing, overcome traditional vehicle skiving film width and can not surpass 1 meter defective, the thickness of film also decreases simultaneously.The utility model is by improving processing step and tooling device, the turning thin-film width that obtains is 200 to 2000 millimeters, film thickness is 0.02 to 0.50 millimeter, and the thickness of film is even, be difficult for curling, possess premium properties such as shock-resistant, wear-resistant, resistance to chemical attack and self-lubricating, can use in that+250 ℃ to-180 ℃ temperature environment is medium-term and long-term, can satisfy market substantially to the requirement of polytetrafluoroethylene film ultra-thin breadth.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:
Fig. 1 is the structural representation of the utility model blank;
Fig. 2 is the utility model blank obtains film through turning structural representation.
Among the figure: 1, blank, 2, centre bore, 3, film.
The specific embodiment
The manufacturing process of ultra-thin breadth polytetrafluoroethylene (PTFE) turning film may further comprise the steps:
(1) raw material sieves: polytetrafluoroethylsuspending suspending fine powder raw material is smashed to pieces, mixes, stirred by high-speed mixer, adopt 60 purpose vibratory sieves to sieve then, obtain the standby raw material of polytetrafluoroethylene (PTFE);
(2) blank is made: the standby raw material of above-mentioned polytetrafluoroethylene (PTFE) is made the cylindrical blank of hollow by die pressing, the blank after the demoulding is placed in 45 ℃ to 55 ℃ the environment and deposited 20 hours to 24 hours, eliminate the internal stress of blank;
(3) sintering: the blank that step (2) is obtained is positioned in the numerical control sintering furnace, and sintering, the cooling undertaken 48～96 hours by the program of setting obtain blank;
(4) turning or rotary-cut: the baking oven of step (3) gained blank being put into 100 ℃ to 120 ℃ carries out preheating, kept temperature 4 hours to 6 hours, after making the inside and outside temperature unanimity of blank, after in the centre bore of blank, being pressed into or drawing in the special core rod that outer surface is provided with stepped tooth, sling and be installed on high precision numerical control lathe or the peeler with hoisting machinery, adopt carbide cutter tool by the thickness of setting film blank to be carried out turning or rotary-cut;
(5) rolling: adopt the wrap-up have balance roller and above-mentioned high precision numerical control lathe or peeler combined, the prestressing force of wrap-up can be set, obtain suitable rolling power by the torque of regulating drive unit, come film is carried out tensioning and rolling, and connecting slewing rollers, spreader roll and rolling station successively by tensioning apparatus, the film that cutting is good is wound on the rolling pipe by the rolling station.
In the present embodiment, described step (1) also comprises sieving of pigment or filler, pigment or filler are sieved with 140 purpose vibratory sieves, then with sieve after the polytetrafluoroethylene (PTFE) material mix, stir, obtain the polytetrafluoroethylene (PTFE) mixed material.In described step (2) the blank manufacturing process, the maximum gauge of blank decides by cutting the thin-film width that obtains, and when thin-film width was 500 millimeters, the maximum gauge of blank was 300 millimeters; When thin-film width is 1600 millimeters, the maximum gauge of blank is 500 millimeters; When thin-film width was 2000 millimeters, the maximum gauge of blank was 800 millimeters.The blank preheating keeps preferred 5 hours of the time of temperature in the described step (4).
As depicted in figs. 1 and 2, ultra-thin breadth polytetrafluoroethylene (PTFE) turning film, described film obtains blank 1 by polyflon through pressed compact, sintering, blank 1 is the cylindrical structural of hollow, blank 1 is provided with centre bore 2, blank 1 is obtained polytetrafluoroethylene film 3 through turning or rotary-cut processing, and the thickness of described film 3 is more than or equal to 0.02 millimeter, smaller or equal to 0.50 millimeter; The width of film 3 is more than or equal to 200 millimeters, smaller or equal to 2000 millimeters.
Claims (3)
1. ultra-thin breadth polytetrafluoroethylene (PTFE) turning film, it is characterized in that: the thickness of described film is more than or equal to 0.02 millimeter, smaller or equal to 0.50 millimeter; The width of film is more than or equal to 200 millimeters, smaller or equal to 2000 millimeters.
2. ultra-thin breadth polytetrafluoroethylene (PTFE) turning film according to claim 1, it is characterized in that: described film obtains blank by polyflon through pressed compact, sintering, and described blank is the cylindrical structural of hollow.
3. ultra-thin breadth polytetrafluoroethylene (PTFE) turning film according to claim 1 and 2, it is characterized in that: described film is to be processed through turning or rotary-cut by the polytetrafluoroethylene (PTFE) blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320122537 CN203172038U (en) | 2013-03-18 | 2013-03-18 | Ultrathin wide-width polytetrafluoroethylene turning thin film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320122537 CN203172038U (en) | 2013-03-18 | 2013-03-18 | Ultrathin wide-width polytetrafluoroethylene turning thin film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203172038U true CN203172038U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320122537 Expired - Lifetime CN203172038U (en) | 2013-03-18 | 2013-03-18 | Ultrathin wide-width polytetrafluoroethylene turning thin film |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144324A (en) * | 2013-03-18 | 2013-06-12 | 江苏泰氟隆科技有限公司 | Ultrathin wide teflon turning film and manufacturing technology thereof |
| CN104742388A (en) * | 2015-04-01 | 2015-07-01 | 江苏泰氟隆科技有限公司 | Ultra-thin wide-width ultra-high molecular weight polyethylene colored film and preparing process thereof |
| CN114851646A (en) * | 2022-05-20 | 2022-08-05 | 江苏泰氟隆科技有限公司 | Thin PTFE high-frequency copper-clad plate and manufacturing process thereof |
-
2013
- 2013-03-18 CN CN 201320122537 patent/CN203172038U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144324A (en) * | 2013-03-18 | 2013-06-12 | 江苏泰氟隆科技有限公司 | Ultrathin wide teflon turning film and manufacturing technology thereof |
| CN104742388A (en) * | 2015-04-01 | 2015-07-01 | 江苏泰氟隆科技有限公司 | Ultra-thin wide-width ultra-high molecular weight polyethylene colored film and preparing process thereof |
| CN114851646A (en) * | 2022-05-20 | 2022-08-05 | 江苏泰氟隆科技有限公司 | Thin PTFE high-frequency copper-clad plate and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |