CN1278483A - Production process of glass fiber reinforced plastic pipe - Google Patents
Production process of glass fiber reinforced plastic pipe Download PDFInfo
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- CN1278483A CN1278483A CN 00108830 CN00108830A CN1278483A CN 1278483 A CN1278483 A CN 1278483A CN 00108830 CN00108830 CN 00108830 CN 00108830 A CN00108830 A CN 00108830A CN 1278483 A CN1278483 A CN 1278483A
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- pipe fitting
- chopped strand
- insatiable hunger
- fiberglass
- mylar
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Abstract
The preparation method of glass fibre reinforced plastic pipe includes the following steps: preparing pipe piece, making external short-cut fibre reinforced layer and making external continuously-winding layer, for large-bore pipe the reinforced layer can be made on its internal wall. Said invention possesses the advantages of that the compactness of pipe connector is good, integral mechanical performance of product is high and its technological process is simple and easy to operate, etc..
Description
The present invention relates to a kind of preparation method of fiberglass pipe fitting.
The molding mode of present existing fiberglass pipeline accessory such as workpiece such as threeway, elbow still is traditional manual pasting forming process, and this technology and the product that makes exist: 1, manual pasting forming process quality instability, and the properties of product discreteness is big; 2, hand is stuck with paste material that technology adopts and mostly is chopped strand (as short felt, the glass cloth etc. cut), and its enhancing scope only is confined to chopped strand to be had in limit for length's scope, and product is unsuitable for using under the high pressure condition; 3, used chopped strand and resin modulus difference are big, cause that thus fiber end stress is concentrated and cause whole reinforced structure low stress cracking, localized seepage's phenomenon to occur.
The preparation method who the object of the present invention is to provide a kind of fiberglass pipe fitting is to overcome the deficiency of prior art.
Overall technology design of the present invention is:
A, pipe fitting are prepared
On GRP pipe, intercept the pipeline section of making special piece by designing requirement, corresponding component in adjacent tubular segments processes the gradient, adopt bonding agent that each pipeline section is bonded into special piece profile and fixing, fill and lead up each pipeline with filler then and connect groove and curing molding;
The making of B, outer chopped strand enhancement layer
A, cover 1-2 layers of fiberglass surfacing mat in the special piece outer surface of tube wall that has been shaped shop, close the mylar base-material by insatiable hunger: fiberglass surfacing mat=90-92: 8-10 mass ratio closes the mylar base-material in the insatiable hunger of fiberglass surfacing mat surface-coated;
B, cover 1-2 layers of glass chopped strand mats in fiberglass surfacing mat layer outer surface shop, close the mylar base-material by insatiable hunger: glass chopped strand mats=60-75: 25-40 mass ratio closes the mylar base-material in the insatiable hunger of glass chopped strand mats surface-coated;
C, alternately twine at fiberglass surfacing mat layer outer surface that glass chopped strand mats is covered in the shop and glass fabric is made strengthening course for each 1-2 layers, close the mylar base-material by insatiable hunger: glass chopped strand mats and glass fabric=60-65: 35-40 mass ratio closes the mylar base-material in the insatiable hunger of strengthening course surface-coated;
D, with the above-mentioned fiberglass special piece curing molding that makes;
The making of C, outer continuous fiber winding layer
A, on special fixture, fix pipe fitting, and outer surface of tube wall is carried out grinding process, the pipe fitting surface-coated one deck resin bonding layer that finishes in grinding process;
B, will flood glass fibre that insatiable hunger closes the mylar base-material and twine yarn and make continuously back and forth uniform winding at pipe fitting interface position, twine cut off after finishing twine yarn and externally the continuous fiber winding layer be cured.
Concrete processing step of the present invention also has: enhancement layer in the pipe fitting inner surface is made, and it is made up of following process steps:
A, cover 1-2 layers of fiberglass surfacing mat in inner surface of tube wall shop, close the mylar base-material by insatiable hunger: fiberglass surfacing mat=90-92: 8-10 mass ratio applies insatiable hunger at the fiberglass surfacing mat outer surface and closes the mylar base-material;
B, cover 1-2 layers of glass chopped strand mats in the inner surface of fiberglass surfacing mat shop, close the mylar base-material by insatiable hunger: glass chopped strand mats=67-75: 25-33 mass ratio closes the mylar base-material in the insatiable hunger of glass chopped strand mats surface-coated;
C, will make in the pipe fitting curing molding of enhancement layer.
The weight that the mylar base-material is closed in insatiable hunger consists of:
Mylar is closed in insatiable hunger: methyl ethyl ketone peroxide (containing 50% dibutyl phthalate) or cyclohexanone peroxide are stuck with paste (containing 50% dibutyl phthalate): cobalt naphthenate solution (the styrene liquation that contains 6% cobalt) or dimethyl benzene amine aqueous solution (containing 10% styrene liquation)=and 100: 1-4: 1-4.
Solidification temperature is 15 ℃-80 ℃ in the making of chopped strand enhancement layer and outer continuous fiber winding layer outside, and solidification temperature is 15 ℃-30 ℃ in the making of pipe fitting preparation and interior enhancement layer.
Bonding agent during pipe fitting is prepared is to be impregnated with the glass chopped strand mats that mylar is closed in insatiable hunger, and filler is that to close mylar content be 67%-75% glass chopped strand mats in insatiable hunger.
The making middle berth of outer chopped strand enhancement layer covers in the preparation of glass chopped strand mats and strengthening course between the felt and short lap width of cutting between felt and the glass fabric is 15-20mm, and residual bubble is extruded with pressure roller in every layer of making back that finishes.
Every layer weak point is cut between the felt in the manufacturing process of interior enhancement layer, the lap width between the surperficial felt is 15-20mm.
The slope angle of the adjacent tubular segments processing gradient was 10-30 ° during pipe fitting was prepared.
Accompanying drawing of the present invention has:
Fig. 1 is the structural representation of fiberglass special piece tube wall.
1 is outer winding layer continuously among the figure, and 2 is outer chopped strand enhancement layer, and 3 is tube wall, and 4 is interior enhancement layer.
Below in conjunction with accompanying drawing embodiments of the invention are further described:
Processing step and process conditions are as follows in the present embodiment:
1, pipe fitting is prepared
On glass reinforced plastic pipe, intercept the threeway of making fiberglass, the required pipeline section of elbow by designing requirement, process the gradient at each pipeline section corresponding interface position, the gradient is 20 °, each pipeline section assembling combination is become required threeway, elbow shape together, and cover back normal temperature along the interface line shop of pipe fitting and fix with being impregnated with glass chopped strand mats that insatiable hunger closes mylar, closing mylar content with insatiable hunger is that 70% glass chopped strand mats covers until filling and leading up groove along the multidirectional in length and breadth shop of groove direction, leaves standstill and curing molding under 25 ℃ of conditions.
2, the making of outer chopped strand enhancement layer
A, fiberglass surfacing mat are spread altogether and are covered 2 layers, and the mylar base-material is closed in insatiable hunger: fiberglass surfacing mat=92: 8.
B, outside the fiberglass surfacing mat layer shop cover 1 layer of glass chopped strand mats, the mylar base-material is closed in insatiable hunger: glass chopped strand mats=70: 30.
Glass chopped strand mats and glass fabric are each 1 layer in c, the strengthening course, and the mylar base-material is closed in insatiable hunger: glass chopped strand mats and glass fabric=and 60: 40.
D, solidification temperature are 25 ℃.
Mylar base-material composition is closed in insatiable hunger:
Mylar is closed in insatiable hunger: methyl ethyl ketone peroxide: cobalt naphthenate solution=100: 2: 3, all the other processing steps and process conditions are as described above in this operation.
3, the making of outer continuous fiber winding layer
Pipe fitting is fixed on the anchor clamps, and the interface near zone of pipe fitting is carried out grinding process with sander, mylar is closed in the insatiable hunger of spraying one deck on the intact machined surface of grinding process, close the glass fibre of mylar and twine yarn and evenly back and forth twine at the pipe fitting interface and reach the fixed thickness requirement being impregnated with insatiable hunger, cut off and twine yarn and under 25 ℃ of conditions, solidify.
4, the making of interior enhancement layer
This operation is mainly bigger for diameter, the pipe fitting of operation adopts in carrying out, wherein the glass surface felt: mylar base-material=10: 90 is closed in insatiable hunger, and the glass weak point is cut felt: mylar base-material=30: 70 is closed in insatiable hunger, condition of cure is 25 ℃, and all the other operations and process conditions are as described above.
Substantive distinguishing features that the present invention is obtained and significant technological progress are:
This preparation method has made full use of the various advantages of continuous fiber and chopped strand, has both guaranteed the compactness of conduit coupling, improved the whole mechanical property of product again, and process is simple, easy operating.
Claims (8)
1, the preparation method of glass fiber reinforced plastic pipe is characterized in that it comprises following processing step:
A, pipe fitting are prepared
On GRP pipe, intercept the pipeline section of making special piece by designing requirement, corresponding component in adjacent tubular segments processes the gradient, adopt bonding agent that each pipeline section is bonded into special piece profile and fixing, fill and lead up each pipeline with filler then and connect groove and curing molding;
The making of B, outer chopped strand enhancement layer
A, cover 1-2 layers of fiberglass surfacing mat in the special piece outer surface of tube wall that has been shaped shop, close the mylar base-material by insatiable hunger: fiberglass surfacing mat=90-92: 8-10 mass ratio closes the mylar base-material in the insatiable hunger of fiberglass surfacing mat surface-coated;
B, cover 1-2 layers of glass chopped strand mats in fiberglass surfacing mat layer outer surface shop, close the mylar base-material by insatiable hunger: glass chopped strand mats=60-75: 25-40 mass ratio closes the mylar base-material in the insatiable hunger of glass chopped strand mats surface-coated;
C, alternately twine at fiberglass surfacing mat layer outer surface that glass chopped strand mats is covered in the shop and glass fabric is made strengthening course for each 1-2 layers, close the mylar base-material by insatiable hunger: glass chopped strand mats and glass fabric=60-65: 35-40 mass ratio closes the mylar base-material in the insatiable hunger of strengthening course surface-coated;
D, with the above-mentioned fiberglass special piece curing molding that makes;
The making of c, outer continuous fiber winding layer
A, on special fixture, fix pipe fitting, and outer surface of tube wall is carried out grinding process, the pipe fitting surface-coated one deck resin bonding layer that finishes in grinding process;
B, will flood glass fibre that insatiable hunger closes the mylar base-material and twine yarn and make continuously back and forth uniform winding at pipe fitting interface position, twine cut off after finishing twine yarn and externally the continuous fiber winding layer be cured.
2, the preparation method of fiberglass pipe fitting according to claim 1 is characterized in that enhancement layer in the making of pipe fitting inner surface, and it is made up of following process steps:
A, cover 1-2 layers of fiberglass surfacing mat in inner surface of tube wall shop, close the mylar base-material by insatiable hunger: fiberglass surfacing mat=90-92: 8-10 mass ratio applies insatiable hunger at the fiberglass surfacing mat outer surface and closes the mylar base-material;
B, cover 1-2 layers of glass chopped strand mats in the inner surface of fiberglass surfacing mat shop, close the mylar base-material by insatiable hunger: glass chopped strand mats=67-75: 25-33 mass ratio closes the mylar base-material in the insatiable hunger of glass chopped strand mats surface-coated;
C, will make in the pipe fitting curing molding of enhancement layer.
3, the preparation method of fiberglass pipe fitting according to claim 1 and 2 is characterized in that insatiable hunger closes the weight of mylar base-material and consist of:
Mylar is closed in insatiable hunger: methyl ethyl ketone peroxide (containing 50% dibutyl phthalate) or cyclohexanone peroxide are stuck with paste (containing 50% dibutyl phthalate): cobalt naphthenate solution (the styrene liquation that contains 6% cobalt) or dimethyl benzene amine aqueous solution (containing 10% styrene liquation)=and 100: 1-4: 1-4.
4, the preparation method of fiberglass pipe fitting according to claim 1 and 2, it is characterized in that solidification temperature is 15 ℃-80 ℃ in the making of chopped strand enhancement layer and outer continuous fiber winding layer outside, solidification temperature is 15 ℃-30 ℃ in the making of pipe fitting preparation and interior enhancement layer.
5, the preparation method of fiberglass pipe fitting according to claim 1, it is characterized in that the bonding agent of pipe fitting in preparing is to be impregnated with the glass chopped strand mats that mylar is closed in insatiable hunger, filler is that to close mylar content be 67%-75% glass chopped strand mats in insatiable hunger.
6, the preparation method of fiberglass pipe fitting according to claim 1, the making middle berth that it is characterized in that outer chopped strand enhancement layer covers in the preparation of glass chopped strand mats and strengthening course between the felt and short lap width of cutting between felt and the glass fabric is 15-20mm, and residual bubble is extruded with pressure roller in every layer of making back that finishes.
7, the preparation method of fiberglass pipe fitting according to claim 2, every layer weak point is cut between the felt in the manufacturing process of enhancement layer in it is characterized in that, the lap width between the surperficial felt is 15-20mm.
8, the preparation method of fiberglass pipe fitting according to claim 1 or 5, it is characterized in that pipe fitting prepare in the slope angle of the adjacent tubular segments processing gradient be 10-30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00108830 CN1278483A (en) | 2000-05-12 | 2000-05-12 | Production process of glass fiber reinforced plastic pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00108830 CN1278483A (en) | 2000-05-12 | 2000-05-12 | Production process of glass fiber reinforced plastic pipe |
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| Publication Number | Publication Date |
|---|---|
| CN1278483A true CN1278483A (en) | 2001-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00108830 Pending CN1278483A (en) | 2000-05-12 | 2000-05-12 | Production process of glass fiber reinforced plastic pipe |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448650C (en) * | 2006-07-13 | 2009-01-07 | 祁锦明 | Ribbed GRP rod making process and press |
| CN101918188A (en) * | 2007-12-14 | 2010-12-15 | 空客运营有限公司 | Jig and out-of-autoclave process for manufacturing composite material structures |
| CN103441464A (en) * | 2013-09-13 | 2013-12-11 | 刘洪奎 | Improved composite material cable conduit and technology method thereof |
| US8657585B2 (en) | 2010-02-08 | 2014-02-25 | Lg Electronics Inc. | Apparatus for driving compressor of air conditioner and method for driving the same |
| CN104081098A (en) * | 2011-10-31 | 2014-10-01 | 长管有限公司 | Construction of pipes |
| CN104972643A (en) * | 2015-07-07 | 2015-10-14 | 河北可耐特玻璃钢有限公司 | FRP pipeline interface reinforcing method |
| CN110645420A (en) * | 2019-11-05 | 2020-01-03 | 安徽杰蓝特新材料有限公司 | High-strength pressure-resistant polyethylene composite pipe and preparation method thereof |
-
2000
- 2000-05-12 CN CN 00108830 patent/CN1278483A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448650C (en) * | 2006-07-13 | 2009-01-07 | 祁锦明 | Ribbed GRP rod making process and press |
| CN101918188A (en) * | 2007-12-14 | 2010-12-15 | 空客运营有限公司 | Jig and out-of-autoclave process for manufacturing composite material structures |
| US8657585B2 (en) | 2010-02-08 | 2014-02-25 | Lg Electronics Inc. | Apparatus for driving compressor of air conditioner and method for driving the same |
| CN104081098A (en) * | 2011-10-31 | 2014-10-01 | 长管有限公司 | Construction of pipes |
| CN104081098B (en) * | 2011-10-31 | 2016-11-09 | 长管有限公司 | The construction of pipe |
| CN103441464A (en) * | 2013-09-13 | 2013-12-11 | 刘洪奎 | Improved composite material cable conduit and technology method thereof |
| CN104972643A (en) * | 2015-07-07 | 2015-10-14 | 河北可耐特玻璃钢有限公司 | FRP pipeline interface reinforcing method |
| CN104972643B (en) * | 2015-07-07 | 2017-03-22 | 河北可耐特玻璃钢有限公司 | FRP pipeline interface reinforcing method |
| CN110645420A (en) * | 2019-11-05 | 2020-01-03 | 安徽杰蓝特新材料有限公司 | High-strength pressure-resistant polyethylene composite pipe and preparation method thereof |
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