CN101130277A - Sintering process for filling polytetrafluoroethylene - Google Patents
Sintering process for filling polytetrafluoroethylene Download PDFInfo
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- CN101130277A CN101130277A CNA2006100475025A CN200610047502A CN101130277A CN 101130277 A CN101130277 A CN 101130277A CN A2006100475025 A CNA2006100475025 A CN A2006100475025A CN 200610047502 A CN200610047502 A CN 200610047502A CN 101130277 A CN101130277 A CN 101130277A
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Abstract
The invention provides a quick and efficient sintering process for filling PTFE product. The solving technology problem is that long-time sintering process is adopted in general for guaranteeing product quality. Sintering time is long and energy consumption is larger. The main point of invention is that by utilizing PTFE characteristics and combining accurate control of new intelligent instrument or computer the whole sintering process is divided into several time segments; under different temperature points different times and speeds are controlled to achieve the purpose of shortening sintering time and save energy.
Description
Technical field
The present invention relates to the sintering method of filled polytetrafluoroethylene rolled-up stock, a kind of sintering process of quick, energy-conservation filled polytetrafluoroethylene particularly is provided.
Background technology
At present, adopt Electric heating at the sintering filled polytetrafluoroethylene, this electrically heated control circuit is simpler and easy.In order to guarantee product quality, generally adopt long sintering process.Sintering time is long, and energy consumption is bigger.Along with development of electronic technology, New Type of Intelligent Instrument or computer control have appearred, it controls the degree that can reach high precision to the temperature of sintering process, at this time just is not suitable for old sintering process again, the disadvantage that sintering time is long, energy consumption is excessive can occur.
Summary of the invention
The purpose of this invention is to provide a kind of sintering process fast and effectively, to adapt to the control of New Type of Intelligent Instrument or computer.
The present invention is in order to shorten sintering time, it utilizes the polytetrafluoroethylene (PTFE) characteristic, in conjunction with New Type of Intelligent Instrument or computer control characteristic of accurate, take the method that low temperature quick heating, high temperature are lowered the temperature slowly, key point stays for some time, i.e. the present invention finishes the sintering process of filled polytetrafluoroethylene by following process:
1, first temperature rise period: with 40-100 ℃/hour heating rate, temperature is risen to 150 ℃;
2, second temperature rise period: with 60-120 ℃/hour heating rate, temperature is risen to 315-335 ℃;
3, first holding stage: be incubated 1-3 hour;
4, the 3rd temperature rise period: with 60-150 ℃/hour heating rate, temperature is risen to 365-380 ℃;
5, second holding stage: be incubated 2-8 hour;
6, first temperature-fall period: with 60-150 ℃/hour rate of temperature fall, cool the temperature to 315-335 ℃;
7, the 3rd holding stage: be incubated 1-3 hour;
8, second temperature-fall period: with 60-150 ℃/hour rate of temperature fall, cool the temperature to 260-290 ℃;
9, the 4th holding stage: be incubated 1-3 hour;
Because the present invention's temperature-rising method of having taked heating rate and temperature value to be inversely proportional to, and stay for some time, compare, shortened total sintering time, saved the energy with the existing heating rate of taking to fix in key point.
Further specify the present invention below in conjunction with accompanying drawing.
Description of drawings
Accompanying drawing is this bright schematic diagram.
The specific embodiment
1, first temperature rise period: with 100 ℃/hour heating rates, temperature is risen to 150 ℃;
2, second temperature rise period: with 80 ℃/hour heating rates, temperature is risen to 330 ℃;
3, first holding stage: be incubated 1 hour;
4, the 3rd temperature rise period: with 60 ℃/hour heating rates, temperature is risen to 380 ℃;
5, second holding stage: be incubated 6 hours;
6, first temperature-fall period: with 100 ℃/hour rate of temperature fall, cool the temperature to 320 ℃;
7, the 3rd holding stage: be incubated 2 hours;
8, second temperature-fall period: with 100 ℃/hour rate of temperature fall, cool the temperature to 270 ℃;
9, the 4th holding stage: be incubated 3 hours;
Claims (2)
1. the sintering process of a filled polytetrafluoroethylene is characterized in that:
(1) first section that heats up: with 40-100 ℃/hour heating rate, temperature is risen to 150 ℃;
(2) second sections that heat up: with 60-120 ℃/hour heating rate, temperature is risen to 315-335 ℃;
(3) first soaking zones: be incubated 1-3 hour;
(4) the 3rd sections that heat up: with 60-150 ℃/hour heating rate, temperature is risen to 365-380 ℃;
(5) second soaking zones: be incubated 2-8 hour;
(6) first temperature descending sections: with 60-150 ℃/hour rate of temperature fall, cool the temperature to 315-335 ℃;
(7) the 3rd soaking zones: be incubated 1-3 hour;
(8) second depression of order sections: with 60-150 ℃/hour rate of temperature fall, cool the temperature to 260-290 ℃;
(9) the 4th holding stages: be incubated 1-3 hour;
2. according to the sintering process of the described filled polytetrafluoroethylene of claim 1, it is characterized in that:
(1) first section that heats up: with 100 ℃/hour heating rates, temperature is risen to 150 ℃;
(2) second temperature rise periods: with 80 ℃/hour heating rates, temperature is risen to 330 ℃;
(3) first holding stages: be incubated 1 hour;
(4) the 3rd temperature rise periods: with 60 ℃/hour heating rates, temperature is risen to 380 ℃;
(5) second holding stages: be incubated 6 hours;
(6) first temperature-fall periods: with 100 ℃/hour rate of temperature fall, cool the temperature to 320 ℃;
(7) the 3rd holding stages: be incubated 2 hours;
(8) second temperature-fall periods: with 100 ℃/hour rate of temperature fall, cool the temperature to 270 ℃;
(9) the 4th holding stages: be incubated 3 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100475025A CN101130277A (en) | 2006-08-22 | 2006-08-22 | Sintering process for filling polytetrafluoroethylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100475025A CN101130277A (en) | 2006-08-22 | 2006-08-22 | Sintering process for filling polytetrafluoroethylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101130277A true CN101130277A (en) | 2008-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA2006100475025A Pending CN101130277A (en) | 2006-08-22 | 2006-08-22 | Sintering process for filling polytetrafluoroethylene |
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| CN (1) | CN101130277A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491945B (en) * | 2009-02-19 | 2010-12-29 | 广州市东泓橡塑制品有限公司 | Preparation method of teflon oriented film of ultra-thin breadth |
| CN102205651A (en) * | 2010-12-24 | 2011-10-05 | 东莞市新志密封技术有限公司 | Method for sintering polytetrafluoroethylene |
| CN102896789A (en) * | 2011-07-26 | 2013-01-30 | 大金工业株式会社 | Manufacturing method of polytetrafluoroethylene moulding, manufacturing method of polytetrafluoroethylene platelet, and polytetrafluoroethylene platelet |
| CN104385607A (en) * | 2014-09-25 | 2015-03-04 | 沈阳北阳氟塑料有限公司 | Polytetrafluoroethylene sintering apparatus and sintering method |
| CN108444131A (en) * | 2018-04-09 | 2018-08-24 | 杨厚成 | A kind of regenerator and its manufacturing method, acoustic energy refrigeration machine and the course of work for acoustic energy refrigeration machine |
| CN112109338A (en) * | 2019-06-19 | 2020-12-22 | 浙江德清科赛塑料制品有限公司 | PTFE sintering process |
-
2006
- 2006-08-22 CN CNA2006100475025A patent/CN101130277A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491945B (en) * | 2009-02-19 | 2010-12-29 | 广州市东泓橡塑制品有限公司 | Preparation method of teflon oriented film of ultra-thin breadth |
| CN102205651A (en) * | 2010-12-24 | 2011-10-05 | 东莞市新志密封技术有限公司 | Method for sintering polytetrafluoroethylene |
| CN102205651B (en) * | 2010-12-24 | 2015-11-25 | 广东新志密封技术有限公司 | A kind of method of sintering polytetrafluoroethylene |
| CN102896789A (en) * | 2011-07-26 | 2013-01-30 | 大金工业株式会社 | Manufacturing method of polytetrafluoroethylene moulding, manufacturing method of polytetrafluoroethylene platelet, and polytetrafluoroethylene platelet |
| CN104385607A (en) * | 2014-09-25 | 2015-03-04 | 沈阳北阳氟塑料有限公司 | Polytetrafluoroethylene sintering apparatus and sintering method |
| CN108444131A (en) * | 2018-04-09 | 2018-08-24 | 杨厚成 | A kind of regenerator and its manufacturing method, acoustic energy refrigeration machine and the course of work for acoustic energy refrigeration machine |
| CN112109338A (en) * | 2019-06-19 | 2020-12-22 | 浙江德清科赛塑料制品有限公司 | PTFE sintering process |
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