CN102179945B - Production process of large-calibre epoxy glass fiber and braided strap winding extrusion draw pipe - Google Patents

Production process of large-calibre epoxy glass fiber and braided strap winding extrusion draw pipe Download PDF

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Publication number
CN102179945B
CN102179945B CN 201110103729 CN201110103729A CN102179945B CN 102179945 B CN102179945 B CN 102179945B CN 201110103729 CN201110103729 CN 201110103729 CN 201110103729 A CN201110103729 A CN 201110103729A CN 102179945 B CN102179945 B CN 102179945B
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China
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glass fiber
spreader
epoxy glass
trombone slide
diameter
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CN 201110103729
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Chinese (zh)
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CN102179945A (en
Inventor
陈分红
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盐城市强力电工绝缘材料厂
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Publication of CN102179945A publication Critical patent/CN102179945A/en
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Publication of CN102179945B publication Critical patent/CN102179945B/en

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Abstract

The invention discloses a production process of a large-calibre epoxy glass fiber and braided strap winding extrusion draw pipe, comprising the following steps of: (1) selecting materials: selecting glass fiber filaments, epoxy resins and glass fiber braided straps as materials, and carrying out orientation distribution on the glass fiber braided straps; (2) dipping glue; (3) scraping the glue for performing; (4) carrying out orientation winding; (5) carrying out heat forming; and (6) cutting into finished products. In the invention, the outer diameter of a produced epoxy glass fiber extrusion draw pipe produced by the production process disclosed by the invention is 10-1000 mm, and therefore, cracking phenomenon is prevented from being generated in the extruding and drawing process of an extrusion draw pipe with a diameter larger than 30 mm in the traditional process and the production of the epoxy glass fiber extrusion draw pipe with the diameter larger than 30 mm becomes real; the production process is simple to operate, greatly enhances the torsional strength and the split strength of the extrusion draw pipe and reduces the operational risks of enterprises; in addition, a product produced by the process meets the requirements on design and quality, effectively enlarges the application range of the epoxy glass fiber extrusion draw pipe and is one of significant innovations of the production process of the large-calibre epoxy glass fiber and braided strap winding extrusion draw pipes throughout history.

Description

Heavy caliber epoxy glass fiber and braided strap winding squeeze the trombone slide production technology
Technical field
What the present invention relates to is a kind of crowded trombone slide manufacturing technology field, and what be specifically related to is that a kind of epoxy glass fiber, braided strap winding squeeze the trombone slide production technology.
Background technology
It is to be soaked with epoxy resin by electrician's alkali-free glass fibre that epoxy glass fiber squeezes trombone slide, in mould, be heating and curing, squeeze continuously and draw the rounded pipe in cross section that forms, should squeeze trombone slide and have high mechanical performance, dielectric properties and good machining property, be applicable to do in the electric equipment insulation system parts, and can under the wet environment condition He in the transformer, use.
Development along with science and technology, some specific high-technology field is more and more to the demand of the crowded trombone slide of high-quality epoxy glass fiber of different cultivars and specification, but in the production technology of existing crowded trombone slide, when pulling out diameter greater than the crowded trombone slide of 30mm by pulling equipment, because expansion and the stress that shrink to produce of epoxy resin in solidification process is larger, easily causes in process of production and squeezes the trombone slide cracking.Therefore, existing production technology of squeezing trombone slide can't be produced the larger epoxy glass fiber of diameter and squeeze trombone slide, existing epoxy glass fiber squeezes trombone slide and is diameter than the crowded trombone slide of circlet oxygen glass fibre, general diameter is at 5~25mm, can't satisfy the existing market to the demand of the crowded trombone slide of larger-diameter high mechanical properties and electric property, thereby affect the promotion and application scope of crowded trombone slide.
Summary of the invention
For the deficiency that exists on the prior art, the object of the invention is to provide a kind of production technology that can produce heavy caliber epoxy glass fiber and the crowded trombone slide of braided strap winding.This technological operation is simple, has avoided squeezing in the production process cracking phenomena of trombone slide, and the product mechanical strength of production is high, can reach the requirement of design and quality.
To achieve these goals, the present invention realizes by the following technical solutions:
Heavy caliber epoxy glass fiber and braided strap winding squeeze the trombone slide production technology, it is characterized in that, this processing step is as follows:
(1) selection material; Selecting filament of glass fiber, epoxy resin, glass braid band is material, and filament of glass fiber, glass braid band distribution of orientations are formed long fibre;
(2) impregnation; Long fibre in the step (1) is divided into some bundle plying long fibres uniformly by the first spreader, then is placed on and carries out impregnation in the glue groove, during impregnation glue is immersed from long stapled top toward the below, what this glue adopted is epoxide-resin glue;
(3) frictioning preformed; By the second spreader the surplus glue on the long fibre is wiped off again by the some bundle plying long fibres behind the impregnation, long fibre and epoxy resin are sticked to one, tentatively be arranged as round tubularly by the plying of the some bundles behind frictioning long fibres, be preliminary preformed operation;
(4) orientation is twined; For increasing the antitorque and split resistance of tubing, increase Wei to the braided strap winding step in preformed with between being heating and curing.Long fibre after the preformed is carried out uniform winding with fiber woven belt, make the fiber strap be wrapped on the long fibre fully, when twining, Wei is applied certain tension force to fiber woven belt, itself and preforming material are combined closely, axially squeeze on one side and draw, Wei increases certain bond stress and bonding force to longitudinal fiber, to improve antitorque and split resistance to winding on one side;
(5) heat-shaping; Long fibre after the preliminary integer in the step (4) is sent into mould, behind the mould heat-shaping, go out approved product by the pulling equipment continuous drawing again.Because of expansion and the contraction change effect of epoxy resin in solidification process, make traditional crowded drawing-die tool can't guarantee that Ф squeezes trombone slide and do not ftracture more than 30, the present invention has adopted the reducing type core, the internal stress of crowded trombone slide when solidifying discharged fully, thoroughly solved crowded trombone slide and squeezed the problem of Cracking that is pulled through in the journey;
(6) cutting finished product; After the products solidifying of finalizing the design, cooling, be cut into finished product by cutting machine.
As preferably, described the first spreader and the second spreader are provided with a plurality of dividing sinker mouths of rounded arrangement, and this circular diameter squeezes the external diameter of trombone slide greater than epoxy glass fiber to be produced.
As preferably, the round diameter that a plurality of dividing sinker mouths of described the first spreader and the second spreader are arranged is 10~1000mm.
As preferably, the round diameter that a plurality of dividing sinker mouths of described the first spreader and the second spreader are arranged is 50~250mm.
As preferably, the round diameter that a plurality of dividing sinker mouths of described the first spreader and the second spreader are arranged is 30~150mm.
As preferably, in the described long fiber fraction, fiber content is 75~83%, and resin content is 17~25%.
The present invention passes through technique scheme, make the crowded trombone slide diameter of epoxy glass fiber of its production reach 10~1000mm, avoid in the existing technique squeezing stretching footpath and squeezed the generation that is pulled through journey Fracture phenomenon greater than the crowded trombone slide of 30mm, make diameter squeeze producing for reality of trombone slide greater than the epoxy glass fiber of 30mm, its technological operation is simple, improve the antitorque and split resistance that product squeezes trombone slide, reduced enterprise business risk; The product of this explained hereafter reaches the requirement of design and quality, can be widely used in doing in the electric equipment fields such as insulation system parts and each pipeline, and can under the wet environment condition He in the transformer, use, effectively having enlarged epoxy glass fiber and squeezed the trombone slide range of application, is that heavy caliber epoxy glass fiber and braided strap winding squeeze one of great innovation of trombone slide production technology since the dawn of human civilization.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is process chart of the present invention.
Fig. 2 is the formpiston structural representation of reducing type core of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the present invention.
Embodiment:
Referring to Fig. 1, a kind of tensile strength that the present embodiment provides is large, can produce the crowded trombone slide production technology of larger-diameter heavy caliber epoxy glass fiber and braided strap winding, the epoxy glass fiber of the present embodiment take the production external diameter as 50mm squeezes trombone slide as example, and this processing step is as follows:
(1) selection material; Selecting epoxy glass fiber silk, epoxy resin, glass braid band is material, glass fiber, glass braid band distribution of orientations is formed long fibre, by spreader and wrapping head.
In long fiber fraction, fiber content is 75~83%, and resin content is 17~25%, and by this component, it has increased the comprehensive mechanical intensity that epoxy glass fiber squeezes trombone slide.Long fiber content in the present embodiment is 80%, and resin content is 19%.
(2) impregnation; Long fibre in the step (1) is divided into some bundle long fibres uniformly by the first spreader, then is placed on and carries out the impregnation operation in the glue groove; This impregnation operation is that glue is immersed from long stapled top toward the below, and what this glue adopted is epoxide-resin glue.In the present embodiment, process a plurality of dividing sinker mouths at the first spreader, the uniform rounded arrangement of these a plurality of dividing sinker mouths, the external diameter that the circular radius of arrangement is set to greater than the crowded trombone slide of epoxy glass fiber to be produced is 50mm, convenient operation.
(3) frictioning preformed; By the second spreader the surplus glue on the long fibre is wiped off again by the some bundle plying long fibres behind the impregnation, long fibre and epoxy resin are sticked to one, tentatively be arranged as round tubularly by the plying of the some bundles behind frictioning long fibres, be preliminary preformed operation.
In the present embodiment, the second spreader equally also has a plurality of dividing sinker mouths, and these a plurality of dividing sinker mouths are identical with the dividing sinker mouth arrangement of the first spreader, i.e. all rounded arrangements, this round diameter is greater than the external diameter of producing the crowded trombone slide of epoxy glass fiber.
Among the present invention, it is 10~1000mm that this round diameter can arrange scope, the present embodiment be produce external diameter be the epoxy glass fiber of 50mm to squeeze trombone slide be example, it is 60mm that a plurality of dividing sinker mouths of this first spreader and the second spreader are arranged routine round diameter.
(4) orientation is twined; For increasing the antitorque and split resistance of tubing, increase Wei to the braided strap winding step in preformed with between being heating and curing.Long fibre after the preformed is carried out uniform winding with fiber woven belt, make the fiber strap be wrapped on the long fibre fully, when twining, Wei is applied certain tension force to fiber woven belt, itself and preforming material are combined closely, axially squeeze on one side and draw, Wei increases certain bond stress and bonding force to longitudinal fiber, to improve antitorque and split resistance to winding on one side;
(5) heat-shaping; Long fibre after the preformed in the step (4) is sent into mould, behind the mould heat-shaping, go out approved product by the pulling equipment continuous drawing again.Because of expansion and the contraction change effect of epoxy resin in solidification process, make traditional crowded drawing-die tool can't guarantee that Ф squeezes trombone slide and do not ftracture more than 30.
As shown in Figure 2, mould of the present invention has adopted the reducing type core, this reducing type core comprise former and with suitable formpiston; Formpiston comprises isometrical preheating initial set section 1, cure shrinkage section 2 that diameter successively decreases gradually and isometrical rear solidifying and setting section 3, cure shrinkage section 2 is arranged between rear solidifying and setting section 3 and the preheating initial set 1, the diameter of the maximum end of described cure shrinkage section 2 and preheating initial set section 1 equal diameters, the equal diameters of its smallest end diameter and rear solidifying and setting section 3, core mold structure by this structure is discharged the internal stress of crowded trombone slide when solidifying fully, has thoroughly solved crowded trombone slide and has squeezed the problem of Cracking that is pulled through in the journey.
For ease of using, what this pulling equipment adopted is chain pulling type hauling machine, and the approved product that will produce from mould is pulled out mould by chain pulling type hauling machine continuous drawing with approved product.
(6) cutting finished product; Approved product by pulling equipment pulls out behind its cooling curing, is cut into satisfactory finished product by cutting machine.
The long fibre strap of the present embodiment is adoptable to be without latitude band, fabric, glass fibre etc., when passing through pulling equipment continuous drawing approved product, the staff is twined ribbon continuously by wrapping head to long fibre, the efficient of raising work is provided, and its technological operation is simple.
Through test, the external diameter that the epoxy glass fiber of the present embodiment production squeezes trombone slide is 50mm, and hot strength is 1190MPa, and bending strength is 860MPa, does not occur squeezing the phenomenon of rupture of trombone slide in the production process, and qualification rate is more than 95%.
The present invention passes through technique scheme, can produce external diameter is the crowded trombone slide of epoxy glass fiber of 10 ~ 1000mm, avoided squeezing in the existing technique stretching footpath greater than the generation of cracking phenomena in the crowded trombone slide process of 30mm, make diameter squeeze producing for reality of trombone slide greater than the epoxy glass fiber of 30mm, satisfy enterprise to various outside dimension requirements, improve the tensile strength of crowded trombone slide, reduced enterprise business risk.
And, the product of this explained hereafter reaches the requirement of design and quality, can be widely used in doing in the electric equipment fields such as insulation system parts and each pipeline, and can under the wet environment condition He in the transformer, use, effectively having enlarged epoxy glass fiber and squeezed the trombone slide range of application, is that heavy caliber epoxy glass fiber and braided strap winding squeeze one of great innovation of trombone slide production technology since the dawn of human civilization.
Above demonstration and declarative description basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof

Claims (7)

1. heavy caliber epoxy glass fiber and braided strap winding squeeze the trombone slide production technology, it is characterized in that, this processing step is as follows:
(1) selection material; Selecting filament of glass fiber, epoxy resin, glass braid band is material, and filament of glass fiber, glass braid band distribution of orientations are formed long fibre;
(2) impregnation; Long fibre in the step (1) is divided into some bundle plying long fibres uniformly by the first spreader, then is placed on and carries out impregnation in the glue groove, during impregnation glue is immersed from long stapled top toward the below, what this glue adopted is epoxide-resin glue;
(3) frictioning preformed; By the second spreader the surplus glue on the long fibre is wiped off again by the some bundle plying long fibres behind the impregnation, long fibre and epoxy resin are sticked to one, tentatively be arranged as round tubularly by the plying of the some bundles behind frictioning long fibres, be preliminary preformed operation;
(4) orientation is twined; Long fibre after the preformed is carried out uniform winding with fiber woven belt, fiber woven belt is wrapped on the long fibre fully, when twining, the weft fiber braid over braid is applied certain tension force, itself and preforming material are combined closely, axially squeeze on one side and draw, on one side the broadwise winding;
(5) heat-shaping; Long fibre after the preliminary integer in the step (4) is sent into mould, behind the mould heat-shaping that is provided with the reducing type core, go out product to be finalized the design by the pulling equipment continuous drawing again;
(6) cutting finished product; After the products solidifying of finalizing the design, cooling, be cut into finished product by cutting machine.
2. heavy caliber epoxy glass fiber according to claim 1 and braided strap winding squeeze the trombone slide production technology, it is characterized in that, described the first spreader and the second spreader are provided with a plurality of dividing sinker mouths of rounded arrangement, and this circular diameter squeezes the external diameter of trombone slide greater than epoxy glass fiber to be produced.
3. heavy caliber epoxy glass fiber according to claim 2 and braided strap winding squeeze the trombone slide production technology, it is characterized in that, the round diameter that a plurality of dividing sinker mouths of described the first spreader and the second spreader are arranged is 10~1000mm.
4. heavy caliber epoxy glass fiber according to claim 2 and braided strap winding squeeze the trombone slide production technology, it is characterized in that, the round diameter that a plurality of dividing sinker mouths of described the first spreader and the second spreader are arranged is 50~250mm.
5. heavy caliber epoxy glass fiber according to claim 2 and braided strap winding squeeze the trombone slide production technology, it is characterized in that, the round diameter that a plurality of dividing sinker mouths of described the first spreader and the second spreader are arranged is 30~150mm.
6. heavy caliber epoxy glass fiber according to claim 1 and braided strap winding squeeze the trombone slide production technology, it is characterized in that, in the described long fiber fraction, fiber content is 75~83%, and resin content is 17~25%.
7. heavy caliber epoxy glass fiber according to claim 1 and braided strap winding squeeze the trombone slide production technology, it is characterized in that, described reducing type core comprise former and with suitable formpiston, described formpiston comprises isometrical preheating initial set section, cure shrinkage section that diameter successively decreases gradually and isometrical rear solidifying and setting section, described cure shrinkage section is arranged between the preheating initial set Duan Yuhou solidifying and setting section, the diameter of the maximum end of described cure shrinkage section and preheating initial set section equal diameters, the equal diameters of its smallest end diameter and rear solidifying and setting section.
CN 201110103729 2011-04-25 2011-04-25 Production process of large-calibre epoxy glass fiber and braided strap winding extrusion draw pipe CN102179945B (en)

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CN104109945A (en) * 2013-05-20 2014-10-22 余成东 Method for manufacturing powerful band
CN109070389A (en) * 2016-04-11 2018-12-21 三菱化学株式会社 The manufacturing method of fibre reinforced resin material and the manufacturing device of fibre reinforced resin material
CN106003760A (en) * 2016-07-14 2016-10-12 王瑛玮 Composite hollow profile prepared through pultrusion-winding composite molding
CN106182816B (en) * 2016-07-14 2019-05-07 安徽森德新材料科技发展有限公司 The method that pultrusion winding composite molding laser curing prepares composite material hollow profile
CN106182817A (en) * 2016-07-14 2016-12-07 王瑛玮 Pultrusion is wound around composite molding and prepares composite
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CN106182717B (en) * 2016-07-15 2019-01-01 山东齐鲁武峰塑料制品有限公司 High-strength PVC winding pipe winding of single layer technique
CN106273557A (en) * 2016-08-22 2017-01-04 王瑛玮 Pultrusion laser curing prepares composite
CN106273388A (en) * 2016-11-01 2017-01-04 厦门腾达祥管业有限公司 PVC composite glass steel pipe continuous-winding forming device
CN106273384A (en) * 2016-11-01 2017-01-04 厦门腾达祥管业有限公司 Glass reinforced plastic pipe continuous-winding forming technique
CN110193958A (en) * 2019-05-17 2019-09-03 张家港市威尔森环保设备有限公司 A kind of reinforcing rib winding preparation method

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CN1141484C (en) * 1998-05-25 2004-03-10 北京建协玻璃钢门窗研究所 Glass fiber reinforced plastic door, window section and its preparation
KR100503444B1 (en) * 2003-01-16 2005-07-26 최용기 Pultrusion pipe using stitch mat of reinforced fiber glass and manufacturing method thereof
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CN101615774B (en) * 2008-06-26 2011-09-21 苏州市木易船舶设备有限公司 Process for producing cable protective closed cover and accessories thereof
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