CN103568307A - Heat treatment molding method of thermoplastic wound pipe - Google Patents
Heat treatment molding method of thermoplastic wound pipe Download PDFInfo
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- CN103568307A CN103568307A CN201210260185.0A CN201210260185A CN103568307A CN 103568307 A CN103568307 A CN 103568307A CN 201210260185 A CN201210260185 A CN 201210260185A CN 103568307 A CN103568307 A CN 103568307A
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Abstract
The invention relates to a heat treatment molding method of a thermoplastic wound pipe. The heat treatment molding method comprises the following steps of 1, carrying out pre-heating and melting on a prepreg tape by an infrared heater, 2, (1), winding the pre-heated and melted prepreg tape on a core and heating the core, or (2), directly winding the melted prepreg tape on the unheated core, putting the core with the melted prepreg tape into an oven and carrying out heating so that the prepreg tape wound on the core and a prepreg tape to be wound can be bonded well, and 3, carrying out rolling on the surface of the tube obtained by the step 2 by a compression roller so that gaps between the prepreg tapes are less and tube strength is high. Compared with the prior art, the heat treatment molding method can solve the problem of poor adhesion of prepreg tape material layers in thermoplastic wound pipe winding and can prepare the high-performance thermoplastic wound pipe.
Description
Technical field
The present invention relates to a kind of forming method of thermoplasticity winding pipe, especially relate to a kind of heat-treating profiled method of thermoplasticity winding pipe, belong to thermoplastic composite processing and forming field.
Background technology
Thermoplastic composite is because its environmental protection concept, can recycling, and will be at following field of compound material dominate.What wrapped tube field was used at present is all that continuous glass fibre strengthens thermosetting resin wrapped tube (being called for short thermoset frp pipe), the recycling disposal of thermoset frp pipe after using decades will be a difficult problem, therefore develop the alternative thermoset frp pipe of a kind of thermoplasticity winding pipe and be of great importance.Yet due to the factor of thermosetting resin and thermoplastic resin self character, thermosetting resin is generally liquid, and thermoplastic resin is solid, this makes the winding process of thermoplasticity winding pipe compare slightly aobvious difficulty compared with thermoset frp pipe.Adhesion strength after the preparation that two key problems of the production of thermoplasticity winding pipe are prepreg tape materials and prepreg tape material are wound around.Along with the industrialization batch process of Shanghai Genius New Material (Group) Co., Ltd. to continuous fiber reinforced thermoplastic prepreg tape material (hereinafter to be referred as prepreg tape), and the popularization of fiber hybrid yams, the raw material of thermoplasticity winding pipe are resolved, and maximum problem is exactly the adhesion problem that solves thermoplastic prepreg material at present.
Thermoset frp pipe is because the thermosetting resin using is liquid, in winding process between layers can be good at bonding.But what thermoplasticity winding pipe was used is thermoplastic resin, thermoplastic resin is easy cooling curing in winding process, thereby makes the adhesive property between pre impregnated material very poor.
Summary of the invention
Object of the present invention is exactly to provide in order to overcome the defect of above-mentioned prior art existence the heat treated forming method of thermoplasticity winding pipe that a kind of adhesive property is good.
Object of the present invention can be achieved through the following technical solutions: a kind of heat-treating profiled method of thermoplasticity winding pipe, it is characterized in that, and the method comprises the following steps:
(1) by infrared heater, prepreg tape is carried out to preheating and melting;
(2) prepreg tape after step (1) preheating and melting is wrapped on core, and core is heated; Or the prepreg tape of melting in step (1) is directly wrapped on the core of not heating, then the core that winds prepreg tape is put into baking oven and heat; Make to be wrapped between prepreg tape on core and prepreg tape to be wound better bonding;
(3) be wound around rear gained tubing, by pressure roller, roll-in carried out in its surface, made space between prepreg tape still less, the intensity of tubing is higher.
The described infrared heater of step (1) is infrared lamp or infrared ceramic piece, infrared heater carries out preheating temperature to prepreg tape material is the melting temperature lower than prepreg tape material higher than room temperature, melt temperature is prepreg tape material melting point temperature, according to the fusing point of different prepreg tape materials, regulates.Heating part before prepreg tape material is wound into core, the quantity of infrared heater can be set according to actual needs.
Step (2) is heated to be and in core inside, carries out oil heating or electrical heating core, or carries out infrared heating in core outside, preferably infrared heating.
The described infrared heating that carries out in core outside is infrared lamp or infrared ceramic piece heating, and heating-up temperature is higher than 0～300 ℃ of prepreg tape fusing point, and concrete heating-up temperature is set according to speed of wrap, finally take that to reach the prepreg tape melting being wrapped on core be object.
The melting temperature that described oil heating or electrically heated temperature are prepreg tape.
Described prepreg tape material is the continuous fiber reinforced thermoplastic resin that Shanghai Genius New Material (Group) Co., Ltd. produces, and described continuous fiber comprises a kind of in glass fibre, carbon fiber, aramid fiber, basalt fibre or other high strength organic fibers; Described thermoplastic resin comprises a kind of in polypropylene, polyethylene, polyamide or polyvinyl chloride.
The core that winds prepreg tape in step (2) is put into baking oven and heat, make whole tubing melting; Tubing after melting is carried out to roll-in, and pressure is 0.1～0.4MPa, makes tubing intensity higher, eliminates the variation of the size of pipe and tubing of bringing due to thermal expansion simultaneously.
Compared with prior art, thermoplasticity winding pipe heat treatment method of the present invention can make the prepreg tape material of bonding and be wrapped in all meltings fully of base material on core, can be good at solving prepreg tape material that thermoplasticity winding pipe the is wound around appearance not high problem of adhesive property between layers; In addition, baking oven heating after-baking can make resin again infiltrate fiber, improves intensity and the resistance to pressure of tubing.
Accompanying drawing explanation
Fig. 1 is the online heat treatment method schematic diagram of thermoplasticity winding pipe.
In figure: 1 is infrared heater a, 2 is infrared heater b, and 3 is infrared heater c, and 4 is infrared heating shield, and 5 is core.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
Prepreg tape material selection continuous glass fiber reinforced polypropylene prepreg tape ，You Shanghai Genius New Material (Group) Co., Ltd. that thermoplasticity winding pipe is used produces.As shown in Figure 1, adopt infrared on-line heating processing method in winding process, wherein prepreg tape adopts 3 infrared lamp heaters to heat it before being wrapped on core 5, and core 5 added to thermal recovery infrared heating shield 4.The temperature setting at infrared heater 1 place is set to 70～80 ℃, and the temperature setting at infrared heater 2 places is set to 120～140 ℃, and the temperature setting at infrared heater 3 places is set to 160～190 ℃, temperature when said temperature is prepreg tape from heater core.Temperature setting to the infrared heating shield 4 of core heating is set to 200～250 ℃.Measurement temperature when said temperature is prepreg tape from heater core, the temperature of heater arranges according to speed of wrap to be adjusted accordingly.After winding completes, by pneumatic pressure roller, carry out roll-in, pressure roll pressure is set to 0.1MPa.The performance of gained fiber glass reinforced thermoplastics wrapped tube is in Table 1.
Embodiment 2
Prepreg tape material selection continuous glass fiber reinforced polypropylene prepreg tape ，You Shanghai Genius New Material (Group) Co., Ltd. that thermoplasticity winding pipe is used produces.In winding process, adopt the prepreg tape of melted by heating is directly wrapped on core, then will wind prepreg tape core and put into 200 ℃ of baking ovens and heat 1.5 hours, take out, carry out roll-in, pressure is 0.4MPa.Wherein prepreg tape adopts 3 infrared lamp heaters to heat it before being wrapped on core 5.The temperature setting of infrared heater 1 is set to 70～80 ℃, the temperature setting of infrared heater 2 is set to 120～140 ℃, the temperature setting of infrared heater 3 is set to 160～190 ℃, measurement temperature when said temperature is prepreg tape from heater core, the temperature of heater arranges according to speed of wrap to be adjusted accordingly.The performance of gained fiber glass reinforced thermoplastics wrapped tube is in Table 1.
Embodiment 3
Prepreg tape material selection continuous aramid fiber enhanced polyethylene prepreg tape ，You Shanghai Genius New Material (Group) Co., Ltd. that thermoplasticity winding pipe is used produces.Adopt infrared on-line heating processing method as shown in Figure 1, infrared heater adopts infrared ceramic piece.Wherein prepreg tape adopts 3 infrared ceramic piece heaters to heat it before being wrapped on core 5, and core 5 added to thermal recovery infrared ceramic piece heating mantles 4.The temperature setting at infrared heater 1 place is set to 50～60 ℃, and the temperature setting at infrared heater 2 places is set to 90～100 ℃, and the temperature setting at infrared heater 3 places is set to 140～160 ℃, temperature when said temperature is prepreg tape from heater core.Temperature setting to the infrared heating shield 4 of core heating is set to 190～220 ℃.Measurement temperature when said temperature is prepreg tape from heater core, the temperature of heater arranges according to speed of wrap to be adjusted accordingly.After winding completes, by pneumatic pressure roller, carry out roll-in, pressure roll pressure is set to 0.1MPa.The performance of gained fiber glass reinforced thermoplastics wrapped tube is in Table 1.
Embodiment 4
Prepreg tape material selection continuous glass fiber reinforced polypropylene prepreg tape ，You Shanghai Genius New Material (Group) Co., Ltd. that thermoplasticity winding pipe is used produces.Its mode of heating is to adopt 3 fluorescent tube heaters to heat it before prepreg tape is wrapped on core 5, and the thermal recovery oil that adds of core 5 is heated.The temperature setting at infrared heater 1 place is set to 70～80 ℃, and the temperature setting at infrared heater 2 places is set to 120～140 ℃, and the temperature setting at infrared heater 3 places is set to 170～190 ℃, temperature when said temperature is prepreg tape from heater core.Temperature setting to the heating of core oil is set to 160 ℃.Measurement temperature when said temperature is prepreg tape from heater core, the temperature of heater arranges according to speed of wrap to be adjusted accordingly.After winding completes, by pneumatic pressure roller, carry out roll-in, pressure roll pressure is set to 0.1MPa.The performance of gained fiber glass reinforced thermoplastics wrapped tube is in Table 1.
Embodiment 5
Prepreg tape material selection continuous carbon fibre strengthened Nylon―66 prepreg tape ，You Shanghai Genius New Material (Group) Co., Ltd. that thermoplasticity winding pipe is used produces.As shown in Figure 1, adopt infrared on-line heating processing method in winding process, wherein prepreg tape adopts 3 infrared lamp heaters to heat it before being wrapped on core 5, and core 5 added to thermal recovery infrared heating shield 4.The temperature setting at infrared heater 1 place is set to 100～120 ℃, and the temperature setting at infrared heater 2 places is set to 150～160 ℃, and the temperature setting at infrared heater 3 places is set to 250～260 ℃, temperature when said temperature is prepreg tape from heater core.Temperature setting to the infrared heating shield 4 of core heating is set to 300～350 ℃.Measurement temperature when said temperature is prepreg tape from heater core, the temperature of heater arranges according to speed of wrap to be adjusted accordingly.After winding completes, by pneumatic pressure roller, carry out roll-in, pressure roll pressure is set to 0.1MPa.The performance of gained fiber glass reinforced thermoplastics wrapped tube is in Table 1.
Comparative example 1
Prepreg tape material selection continuous glass fiber reinforced polypropylene prepreg tape (glass quality percentage composition is 60%) ，You Shanghai Genius New Material (Group) Co., Ltd. that thermoplasticity winding pipe is used produces.In winding process, adopt the prepreg tape of melted by heating is directly wrapped on core, then the demoulding obtains sample pipe, and wherein prepreg tape adopts 3 infrared lamp heaters to heat it before being wrapped on core 5.The temperature setting of infrared heater 1 is set to 70～80 ℃, and the temperature setting of infrared heater 2 is set to 120～140 ℃, and the temperature setting of infrared heater 3 is set to 160～190 ℃.Measurement temperature when said temperature is prepreg tape from heater core, the temperature of heater arranges according to speed of wrap to be adjusted accordingly.The performance of gained fiber glass reinforced thermoplastics wrapped tube is in Table 1.
Table 1
Wherein ring stiffness test is according to standard GB/T5352-2005, explosion hydraulic pressure test reference standard GB/T5351-2005, interlaminar shear strength test reference standard ASTM D2344/D2344M, winding pipe caliber is 150mm, wall thickness is 4.5mm, and the mass percent of fortifying fibre is 50%.
From table 1, can see, when to core, heating does not obtain tubing, due to tubing prepreg tape gap between layers, the burst pressure of tubing is less, and through to after the heating of core, due to prepreg tape be wrapped in the equal melting of base material on core, bonding is between the two very good, also seldom, the ring stiffness of tubing, hydraulic pressure demolition pressure and interlaminar shear strength are all greatly enhanced in gap between layers.And after baking oven after-baking, the ring stiffness of tubing, hydraulic pressure demolition pressure and interlaminar shear strength are all greatly improved.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (8)
1. a heat-treating profiled method for thermoplasticity winding pipe, is characterized in that, the method comprises the following steps:
(1) by infrared heater, prepreg tape is carried out to preheating and melting;
(2) prepreg tape after step (1) preheating and melting is wrapped on core, and core is heated; Or the prepreg tape of melting in step (1) is directly wrapped on the core of not heating, then the core that winds prepreg tape is put into baking oven and heat; Make to be wrapped between prepreg tape on core and prepreg tape to be wound better bonding;
(3) be wound around rear gained tubing, by pressure roller, roll-in carried out in its surface, made space between prepreg tape still less, the intensity of tubing is higher.
2. the heat-treating profiled method of a kind of thermoplasticity winding pipe according to claim 1, is characterized in that, described prepreg tape material is the continuous fiber reinforced thermoplastic resin that Shanghai Genius New Material (Group) Co., Ltd. produces.
3. the heat-treating profiled method of a kind of thermoplasticity winding pipe according to claim 2, is characterized in that, described continuous fiber comprises a kind of in glass fibre, carbon fiber, aramid fiber, basalt fibre or other high strength organic fibers; Described thermoplastic resin comprises a kind of in polypropylene, polyethylene, polyamide or polyvinyl chloride.
4. the heat-treating profiled method of a kind of thermoplasticity winding pipe according to claim 1, it is characterized in that, the described infrared heater of step (1) is infrared lamp or infrared ceramic piece, and infrared heater carries out preheating temperature to prepreg tape material is the melting temperature lower than prepreg tape material higher than room temperature; Melt temperature is prepreg tape material melting point temperature, according to the fusing point of different prepreg tape materials, regulates.
5. the heat-treating profiled method of a kind of thermoplasticity winding pipe according to claim 1, is characterized in that, step (2) is heated to be and in core inside, carries out oil heating or electrical heating core, or carries out infrared heating in core outside.
6. the heat-treating profiled method of a kind of thermoplasticity winding pipe according to claim 5, it is characterized in that, the described infrared heating that carries out in core outside is infrared lamp or infrared ceramic piece heating, and heating-up temperature, higher than 0～300 ℃ of prepreg tape fusing point, be take prepreg tape melting as object.
7. the heat-treating profiled method of a kind of thermoplasticity winding pipe according to claim 5, is characterized in that, the melting temperature that described oil heating or electrically heated temperature are prepreg tape.
8. the heat-treating profiled method of a kind of thermoplasticity winding pipe according to claim 1, is characterized in that, by step (3) central roll pressure pressure, is 0.1～0.4MPa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210260185.0A CN103568307A (en) | 2012-07-20 | 2012-07-20 | Heat treatment molding method of thermoplastic wound pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210260185.0A CN103568307A (en) | 2012-07-20 | 2012-07-20 | Heat treatment molding method of thermoplastic wound pipe |
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| CN103568307A true CN103568307A (en) | 2014-02-12 |
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| CN201210260185.0A Pending CN103568307A (en) | 2012-07-20 | 2012-07-20 | Heat treatment molding method of thermoplastic wound pipe |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817819A (en) * | 2014-02-28 | 2014-05-28 | 东华大学 | Preparation device for void-free prepreg tape |
| CN104626602A (en) * | 2015-01-30 | 2015-05-20 | 浙江贝欧复合材料制造有限公司 | Molding method for carbon fiber composite material pipe |
| CN104763859A (en) * | 2015-02-13 | 2015-07-08 | 安徽浩天新型材料有限公司 | High-temperature fireproof sleeve pipe |
| CN105030435A (en) * | 2015-07-23 | 2015-11-11 | 浙江贝欧复合材料制造有限公司 | Method for fabricating stretcher cross bar |
| CN107940126A (en) * | 2017-12-12 | 2018-04-20 | 山东柏远复合材料科技有限公司 | The thermoplastic resin winding pipe and its preparation process of a kind of glass steel strip reinforced |
| CN110341172A (en) * | 2019-08-12 | 2019-10-18 | 宁波市江北宏菱新兴绝缘材料有限公司 | It is a kind of to insulate into pressure pipe production process and device |
| CN111816385A (en) * | 2020-06-28 | 2020-10-23 | 常州汇鑫超微合金材料科技有限公司 | Energy-saving far infrared baking ultramicro self-adhesive enameled wire device and production process |
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2012
- 2012-07-20 CN CN201210260185.0A patent/CN103568307A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817819A (en) * | 2014-02-28 | 2014-05-28 | 东华大学 | Preparation device for void-free prepreg tape |
| CN103817819B (en) * | 2014-02-28 | 2016-08-17 | 东华大学 | A kind of tight prepreg tape Preparation equipment |
| CN104626602A (en) * | 2015-01-30 | 2015-05-20 | 浙江贝欧复合材料制造有限公司 | Molding method for carbon fiber composite material pipe |
| CN104763859A (en) * | 2015-02-13 | 2015-07-08 | 安徽浩天新型材料有限公司 | High-temperature fireproof sleeve pipe |
| CN105030435A (en) * | 2015-07-23 | 2015-11-11 | 浙江贝欧复合材料制造有限公司 | Method for fabricating stretcher cross bar |
| CN107940126A (en) * | 2017-12-12 | 2018-04-20 | 山东柏远复合材料科技有限公司 | The thermoplastic resin winding pipe and its preparation process of a kind of glass steel strip reinforced |
| CN107940126B (en) * | 2017-12-12 | 2023-10-27 | 山东柏远复合材料科技股份有限公司 | Glass steel band reinforced thermoplastic resin winding pipe and preparation process thereof |
| CN110341172A (en) * | 2019-08-12 | 2019-10-18 | 宁波市江北宏菱新兴绝缘材料有限公司 | It is a kind of to insulate into pressure pipe production process and device |
| CN110341172B (en) * | 2019-08-12 | 2021-09-28 | 宁波市江北宏菱新兴绝缘材料有限公司 | Production process and device of insulating pressure forming pipe |
| CN111816385A (en) * | 2020-06-28 | 2020-10-23 | 常州汇鑫超微合金材料科技有限公司 | Energy-saving far infrared baking ultramicro self-adhesive enameled wire device and production process |
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Application publication date: 20140212 |
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