CN1359786A - Method and special clamping fixture for winding glass fibre reinforced plastic pipe - Google Patents
Method and special clamping fixture for winding glass fibre reinforced plastic pipe Download PDFInfo
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- CN1359786A CN1359786A CN 00136114 CN00136114A CN1359786A CN 1359786 A CN1359786 A CN 1359786A CN 00136114 CN00136114 CN 00136114 CN 00136114 A CN00136114 A CN 00136114A CN 1359786 A CN1359786 A CN 1359786A
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- reinforced plastic
- glass fibre
- fibre reinforced
- tube core
- core mold
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Abstract
A method and special shaping tool for winding glass fibre reinforced plastic pipe are disclosed. Said special shaping tool is a hollow metal tube with higher thermal expansion coefficient. Said method includes winding glass fibre reinforced plastic pipe on the surface of said special shaping tool, passing the hot air, hot steam, or hot water through the shaping tool to promote solidification of glass fibre reinforced plastic pipe and compact it, passing the cold medium through it for shrinkage, and demoulding. Its advantages are no internal stress, high pressure resistance and not cracking.
Description
The method and the special use that the invention belongs to a kind of winding glass fibre reinforced plastic have mold.Be particularly related to a kind of method and special-purpose mold of winding glass fibre reinforced plastic
The method of at present common making glass reinforced plastic pipe is that the fiber that has resin is wrapped on the metal tube core, behind the curing molding, uses hydraulic press again, and finished product is ejected or pulls out.In big the curing, must add shrinkage stress often, the distribution shown in Fig. 1 (a).(b) be the residual stress of taking out after the NASA.(c) be internal pressure between finished product and tube core,, cause the difficulty of tread flaking so also be a kind of grip.(d) be bearing strength test,, then get the summary stress of (e) representative with the residual stress addition.The distribution of this stress is very unequal, often causes the be full of cracks of tube wall internal surface layer.The method of generally remedying is, twines into earlier the internal layer of pipe with a kind of soft resin, after the curing, and then twines skin.This program produces shrinkage stress, is found in Fig. 2 (f).Residual stress is as (g) after tread flaking.Grip between finished product and tube core is as (h).Therefore grip clearly saves the tread flaking power of half than (c) (e) warp.Residual stress adds combined stress (i) and promptly gets the stress that terminates (j).(j) inboard wall stress, more lower slightly than (e), be again barras simultaneously, so lowered the danger of be full of cracks.
The method and the special-purpose mold that the purpose of this invention is to provide a kind of winding glass fibre reinforced plastic overcome the shortcoming and defect of prior art.Reach the easy tread flaking of winding glass fibre reinforced plastic, eliminate disadvantageous internal stress, increase pressure rating etc.
The object of the present invention is achieved like this:
A kind of method of winding glass fibre reinforced plastic is characterized by: the two ends of the metal manufacturing that the employing thermal coefficient of expansion is bigger are connected with the tube core mold of the hollow of airway.Carry out winding glass fibre reinforced plastic at normal temperatures.Airway from the mold two ends after twining leads to some hot gas, vapours, hot water to the inside of tube core mold hollow, and the outer winding glass fibre reinforced plastic of tube core mold of winding is solidified.After winding glass fibre reinforced plastic solidified, the airway from the mold two ends led to a cold air, cold water to the inside of tube core mold hollow immediately, and the tube core mold is shunk by the cold diameter of thermal change.Less because of the winding glass fibre reinforced plastic thermal coefficient of expansion, make and twine glass tube and gap of tube core mold disengaging, make around glass reinforced plastic pipe and tube core mold to be easy to break away from.
The two ends of the metal manufacturing that the employing thermal coefficient of expansion is bigger are connected with the tubulose sealing tube core mold of the hollow of airway.
The two ends of the aluminum metal manufacturing that the employing thermal coefficient of expansion is bigger are connected with the tubulose sealing tube core mold of the hollow of passage.
Advantage of the present invention is:
The easy tread flaking of the winding glass fibre reinforced plastic of this method and device fabrication can be eliminated bad internal stress, increases pressure rating, does not chap.
Below in conjunction with the description of drawings present embodiment:
Grip and residual stress that the once outer heat cure of Fig. 1 winding glass fibre reinforced plastic produces.
Fig. 2 curls grip and the residual stress that the outer heat cure of glass reinforced plastic pipe gradation produces.
The tube core (mold) of heating and interior cooling in Fig. 3 winding glass fibre reinforced plastic.
Heating and interior cooling operations program are to tread flaking and withstand voltage influence in Fig. 4 winding glass fibre reinforced plastic.
A kind of method of winding glass fibre reinforced plastic, be that the two ends of adopting the bigger metal of thermal coefficient of expansion to make are communicated with air flue 1, the tube core mold 3 of 2 hollow, carry out winding glass fibre reinforced plastic at normal temperatures, twine the back and from the breather pipe at mold two ends, pass to hot gas or vapours or hot water to the inside of tube core mold hollow, make and twine the outer winding glass fibre reinforced plastic curing of ground tube core mold, after winding glass fibre reinforced plastic solidifies, from the breather pipe at mold two ends, lead to cold air or cold water again to the inside of tube core mold hollow, the tube core mold is shunk by the cold diameter of thermal change, because of the winding glass fibre reinforced plastic thermal coefficient of expansion less, make around glass reinforced plastic pipe and tube core mold to break away from a gap, make around glass reinforced plastic pipe and tube core mold to be easy to break away from.
The two ends of the metal manufacturing that the employing thermal coefficient of expansion is bigger are connected with the tubulose sealing tube core mold of the hollow of airway.
The two ends of the aluminum metal manufacturing that the employing thermal coefficient of expansion is bigger are connected with the tubulose sealing tube core mold of the hollow of passage.
This method and equipment are to solve winding glass fibre reinforced plastic the most completely to be difficult for tread flaking, and ring stress is big, not withstand voltage, and the way that chaps easily.Tubing is wrapped in one can be heated internally and cool off on the tube core that has high expansion coefficient again, as shown in Figure 4, pine for adding, thermal expansion (k) and curing shrinkage internal stress are arranged, (l), in the middle of tube core and tubing is the existence that a kind of grip (m) arranged, but after the tube core cooling, the contraction of mold (o) produces gap (p), so tubing can skid off under unresisted situation, and the distribution of the residual stress after the tread flaking (n) the just in time residual stress with the conventional method gained is opposite, add bearing strength test (g), promptly get average termination stress (r), because mean forced, so can increase the pressure rating of tubing.
Claims (3)
1, a kind of method of winding glass fibre reinforced plastic, it is characterized by: the two ends of the metal manufacturing that the employing thermal coefficient of expansion is bigger have the tube core mold of the hollow of airway, carry out winding glass fibre reinforced plastic at normal temperatures, twine the airway of back from the mold two ends, to the more logical hot gas in the inside of tube core mold hollow, vapours, hot water, the outer winding glass fibre reinforced plastic of tube core mold of winding is solidified; After winding glass fibre reinforced plastic solidified, the airway from the mold two ends led to a cold air, cold water to the inside of tube core mold hollow immediately, and the tube core mold is shunk by the cold diameter of thermal change.Less because of the winding glass fibre reinforced plastic thermal coefficient of expansion, make and twine glass tube and gap of tube core mold disengaging, make around glass reinforced plastic pipe and tube core mold to be easy to break away from.
2, the special-purpose mold of winding glass fibre reinforced plastic according to claim 1 is characterized by: the two ends of the metal manufacturing that the employing thermal coefficient of expansion is bigger are connected with the tubulose sealing tube core mold of the hollow of airway.
3, the special-purpose mold of winding glass fibre reinforced plastic according to claim 1 is characterized by: the two ends of the aluminum metal manufacturing that the employing thermal coefficient of expansion is bigger are connected with the tubulose sealing tube core mold of the hollow of passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00136114 CN1359786A (en) | 2000-12-22 | 2000-12-22 | Method and special clamping fixture for winding glass fibre reinforced plastic pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00136114 CN1359786A (en) | 2000-12-22 | 2000-12-22 | Method and special clamping fixture for winding glass fibre reinforced plastic pipe |
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| Publication Number | Publication Date |
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| CN1359786A true CN1359786A (en) | 2002-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 00136114 Pending CN1359786A (en) | 2000-12-22 | 2000-12-22 | Method and special clamping fixture for winding glass fibre reinforced plastic pipe |
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| CN (1) | CN1359786A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427295C (en) * | 2005-02-24 | 2008-10-22 | 扬州新扬科技发展产业有限公司 | Manufacturing technology of hgih pressure bearing glass fiber reinforced plastic oil transfer pipeline |
| CN101180176B (en) * | 2005-03-22 | 2011-04-13 | 快速科技有限公司 | Composite tube production |
| CN102873856A (en) * | 2012-10-12 | 2013-01-16 | 杭州中环化工设备有限公司 | Manufacturing method and forming die of glass reinforced plastic pipeline and container |
| CN106180546A (en) * | 2016-07-15 | 2016-12-07 | 烟台国冶冶金水冷设备有限公司 | A kind of mold and manufacture method thereof |
| CN106393659A (en) * | 2016-11-15 | 2017-02-15 | 浙江斯钽博新材料科技有限公司 | Equipment and production method for demoulding and manufacturing conical electrical pole by using internal-heating-cured cooling water of steam |
| CN110015390A (en) * | 2019-05-07 | 2019-07-16 | 珠海市琛龙船厂有限公司 | A kind of connection structure and hull of metalwork and glass reinforced plastic |
| CN111941698A (en) * | 2020-08-13 | 2020-11-17 | 搏世因(江苏)高压电气有限公司 | Superconducting insulating sleeve glass fiber reinforced plastic winding core die and demolding method |
| CN112659514A (en) * | 2020-12-24 | 2021-04-16 | 王士凯 | High-temperature processing device for film production |
-
2000
- 2000-12-22 CN CN 00136114 patent/CN1359786A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427295C (en) * | 2005-02-24 | 2008-10-22 | 扬州新扬科技发展产业有限公司 | Manufacturing technology of hgih pressure bearing glass fiber reinforced plastic oil transfer pipeline |
| CN101180176B (en) * | 2005-03-22 | 2011-04-13 | 快速科技有限公司 | Composite tube production |
| CN102873856A (en) * | 2012-10-12 | 2013-01-16 | 杭州中环化工设备有限公司 | Manufacturing method and forming die of glass reinforced plastic pipeline and container |
| CN102873856B (en) * | 2012-10-12 | 2015-08-19 | 杭州中环化工设备有限公司 | The preparation method of GRP pipe and glass steel container and mould |
| CN106180546A (en) * | 2016-07-15 | 2016-12-07 | 烟台国冶冶金水冷设备有限公司 | A kind of mold and manufacture method thereof |
| CN106180546B (en) * | 2016-07-15 | 2018-04-03 | 烟台国冶冶金水冷设备有限公司 | A kind of mold and its manufacture method |
| CN106393659A (en) * | 2016-11-15 | 2017-02-15 | 浙江斯钽博新材料科技有限公司 | Equipment and production method for demoulding and manufacturing conical electrical pole by using internal-heating-cured cooling water of steam |
| CN110015390A (en) * | 2019-05-07 | 2019-07-16 | 珠海市琛龙船厂有限公司 | A kind of connection structure and hull of metalwork and glass reinforced plastic |
| CN111941698A (en) * | 2020-08-13 | 2020-11-17 | 搏世因(江苏)高压电气有限公司 | Superconducting insulating sleeve glass fiber reinforced plastic winding core die and demolding method |
| CN112659514A (en) * | 2020-12-24 | 2021-04-16 | 王士凯 | High-temperature processing device for film production |
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