CN103496169A - Preparation method for carbon fibre composite dragline - Google Patents
Preparation method for carbon fibre composite dragline Download PDFInfo
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- CN103496169A CN103496169A CN201310450740.0A CN201310450740A CN103496169A CN 103496169 A CN103496169 A CN 103496169A CN 201310450740 A CN201310450740 A CN 201310450740A CN 103496169 A CN103496169 A CN 103496169A
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- carbon fibre
- fibre composite
- anchoring
- density polyethylene
- high density
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Abstract
The invention relates to a preparation method for a carbon fibre composite dragline. The method comprises the following steps: closely arraying carbon fibre composite ribs with a determined quantity in a regular hexagon to form a carbon fibre bundle; performing left-handed slight twisting on the carbon fibre bundle by 1-3 degrees, then lapping a high-strength polyester fibre band for shaping a line body; performing high density polyethylene hot extrusion on the shaped line body twice to form a high density polyethylene sheath; installing anchorage devices at the both ends of the carbon fibre bundle, designing the form of the anchorage devices according to a structure of combining a conical barrel shape with a straight barrel type to form an anchoring conical section and an anchoring straight barrel section; dispersing the carbon fibre composite ribs at the anchoring conical section, and locating the carbon fibre composite ribs by a front division plate and a rear division plate; and pouring epoxy resin mortar in gaps between conical cavities of the anchorage devices and the carbon fibre composite ribs, and curing at a normal temperature. According to the method disclosed by the invention, an extrusion friction force between the anchoring resin mortar and the ribs can be increased, an anchoring length can be reduced, and the close combination degree between the polyethylene sheath and the carbon fibre composite line body can be increased, and coiled transport for the lines can be facilitated.
Description
Technical field
The present invention relates to a kind of carbon fibre composite drag-line Suo Fangfa processed.Be mainly used in making the carbon fibre composite suspension cable of cable-stayed bridge.
Background technology
The excellent properties such as carbon fibre composite has lightweight, high-strength, not corrosion, corrosion-resistant, endurance, thermal coefficient of expansion is low, damping performance is good, drag-line parts by the carbon fibre composite muscle for long-span cable-supported bridge, can fundamentally solve steel cable antifatigue and the poor problem of decay resistance.At present, the fabrication technology of cables of carbon fiber drag-line is simpler, all adopts carbon fibre composite muscle material parallel arrangement, at regular intervals between carbon fibre composite muscle material, in order to protect ultraviolet light and aging, at cable body appearance surface cover pe sheath.The deficiency of this technology is:
One: the Cable body region, due at regular intervals between carbon fibre composite muscle material, causes the cable body diameter excessive, is unfavorable for coiling and transporting of drag-line finished product.
Its two: the anchor-hold position is due to carbon fibre composite muscle material parallel arrangement, and the extrusion friction power between anchoring resin mortar and muscle material is inadequate, causes anchorage length long, is unfavorable for the raising of anchor cylinder tonnage.
Its three: be at long rope appearance surface cover pe sheath, difficult, and may cause between pe sheath and carbon fiber cable body and produce gap, the stability that is unfavorable for drag-line, if at the direct hot extruded polyethylene of cable body outer surface, the high temperature of generation can cause the intensity of carbon fibre composite rope to descend.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of extrusion friction power that can increase between anchoring resin mortar and muscle material is proposed, reduce anchorage length, improve the degree of combining closely of pe sheath and carbon fibre composite cable body, be convenient to into again the carbon fibre composite drag-line Suo Fangfa processed that rope is coiled transportation simultaneously.
The object of the present invention is achieved like this: a kind of carbon fibre composite drag-line Suo Fangfa processed, described method is that the carbon fibre composite muscle material of determining radical is to the regular hexagon close-packed arrays, form carbon fiber bundle, wrapped h band after 1 ~ 3 ° of left-handed slight twisting, typing for cable body, the funiculus posterior medullae spinalis body heat of finalizing the design is squeezed high density polyethylene (HDPE), form the high density polyethylene (HDPE) sheath, because the temperature of hot extrude high density polyethylene (HDPE) is 150 ℃ of left and right, the vitrification point (120 ℃) that surpasses resin matrix in carbon fibre composite muscle material, the vitrification point that surpasses resin matrix in composite for fear of the temperature of composite cable body when the hot extrude high density polyethylene (HDPE), cause the hot strength of carbon fibre composite to reduce, consider specifically to squeeze at twice high density polyethylene (HDPE), can squeeze thin point (thickness 2 ~ 3mm) while squeezing high density polyethylene (HDPE) for the first time, the cable body thermal equilibrium temperature control well not over 120 ℃, then squeeze again for the second time thick point (thickness 5 ~ 6mm).At the carbon fiber bundle two ends, ground tackle is installed, the ground tackle form adopts the design of " cone barrel+straight barrel type " structure, form anchoring cone section and anchoring direct tube section, carbon fibre composite muscle material is dispersed and is come in anchoring cone section, with former and later two wire sub-panels, locate, gap infusion epoxy resin mortar between the cone chamber of ground tackle and carbon fibre composite muscle material, epoxy resin mortar used requires good fluidity, normal temperature cure, its constituent is epoxy resin, curing agent and quartz sand, and three's mass ratio is epoxy resin: curing agent: quartz sand=4:1:4.
The invention has the beneficial effects as follows:
1, the present invention, by the carbon fibre composite muscle material twisting to the cable body position, has reduced the cable body diameter, is convenient to coiling and transporting of drag-line finished product, and making to manufacture long span stayed-cable bridge becomes possibility with the carbon fibre composite drag-line.
2, the present invention is by dispersing carbon fibre composite muscle material to come at anchoring section, improved the extruding force of epoxy resin mortar to carbon fibre composite muscle material, strengthen the frictional force on muscle material surface, thereby obtain higher anchoring efficiency, reduced anchor length.
3, the present invention proposes at twice the method at carbon fibre composite cable body surface hot extrude high density polyethylene (HDPE), avoid high temperature when the hot extrude high density polyethylene (HDPE) to cause the intensity of carbon fibre composite rope to descend, and improved the stability of degree of combining closely Yu the drag-line of pe sheath and carbon fibre composite cable body.
The accompanying drawing explanation
Fig. 1 is carbon fibre composite stayed structure schematic diagram of the present invention.
Fig. 2 is Cable body section structural representation of the present invention.
Reference numeral in figure:
Carbon fibre composite cable body 1
Epoxy resin mortar 3
Connecting cylinder 5
Carbon fibre composite muscle material 6
High density polyethylene (HDPE) sheath 8.
The specific embodiment
Referring to Fig. 1 and Fig. 2, Fig. 1 is carbon fibre composite stayed structure schematic diagram of the present invention.Fig. 2 is Cable body section structural representation of the present invention.In Fig. 1 and Fig. 2, can find out, this carbon fibre composite drag-line is that the carbon fibre composite muscle material of determining radical is to the regular hexagon close-packed arrays, form carbon fiber bundle, wrapped h band after 1 ~ 3 ° of left-handed slight twisting, for the typing of cable body.Cable body hot extrude high density polyethylene (HDPE) at twice after finalizing the design, form the high density polyethylene (HDPE) sheath, for the ageing resistance by ultraviolet light protection of carbon fibre composite rope.The vitrification point that surpasses resin matrix in composite for fear of the temperature of composite cable body when the hot extrude high density polyethylene (HDPE), cause the hot strength of carbon fibre composite to reduce, consider to squeeze at twice high density polyethylene (HDPE), squeeze thin point (thickness 2 ~ 3mm) while squeezing high density polyethylene (HDPE) for the first time, the cable body thermal equilibrium temperature of controlling well does not surpass 120 ℃, squeezes for the second time thick point (thickness 5 ~ 6mm) again.At the carbon fiber bundle two ends, ground tackle is installed, the ground tackle form adopts the design of " cone barrel+straight barrel type " structure, forms anchoring cone section and anchoring direct tube section, and carbon fibre composite muscle material is dispersed and come in anchoring cone section, with former and later two wire sub-panels, locates.Gap infusion epoxy resin mortar between the cone chamber of ground tackle and carbon fibre composite muscle material.Surpass the carbon fibre composite operating temperature for fear of anchoring filling agent perfusion leakiness and epoxy resin mortar solidification temperature, epoxy resin mortar used requires good fluidity, normal temperature cure, its constituent is epoxy resin, curing agent and quartz sand, and three's mass ratio is epoxy resin: curing agent: quartz sand=4:1:4.
Claims (1)
1. a carbon fibre composite drag-line Suo Fangfa processed, it is characterized in that: described method is that the carbon fibre composite muscle material of determining radical is to the regular hexagon close-packed arrays, form carbon fiber bundle, wrapped h band after 1 ~ 3 ° of left-handed slight twisting, typing for cable body, the funiculus posterior medullae spinalis body heat of finalizing the design is squeezed high density polyethylene (HDPE), form the high density polyethylene (HDPE) sheath, concrete hot extrude high density polyethylene (HDPE) at twice, while squeezing high density polyethylene (HDPE) for the first time, thickness is at 2 ~ 3mm, thermal equilibrium temperature control well at 90 ~ 120 ℃, squeeze again for the second time 5-6mm thick, at the carbon fiber bundle two ends, ground tackle is installed, the ground tackle form adopts the design of " cone barrel+straight barrel type " structure, form anchoring cone section and anchoring direct tube section, carbon fibre composite muscle material is dispersed and is come in anchoring cone section, with front, latter two wire sub-panel is located, gap infusion epoxy resin mortar between the cone chamber of ground tackle and carbon fibre composite muscle material, normal temperature cure, its constituent of epoxy resin mortar used is epoxy resin, curing agent and quartz sand, three's mass ratio is epoxy resin: curing agent: quartz sand=4:1:4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310450740.0A CN103496169A (en) | 2013-09-29 | 2013-09-29 | Preparation method for carbon fibre composite dragline |
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| CN201310450740.0A CN103496169A (en) | 2013-09-29 | 2013-09-29 | Preparation method for carbon fibre composite dragline |
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| CN103496169A true CN103496169A (en) | 2014-01-08 |
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| CN201310450740.0A Pending CN103496169A (en) | 2013-09-29 | 2013-09-29 | Preparation method for carbon fibre composite dragline |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005513A (en) * | 2014-06-09 | 2014-08-27 | 天津大学 | Carbon fiber reinforced plastics (CFRP) inhaul cable of cable-supported structure |
| CN110067199A (en) * | 2019-05-22 | 2019-07-30 | 山东非金属材料研究所 | One kind preventing the big pulling force list rope of swollen type carbon fiber enhancement resin base composite material, preparation method and its application |
| CN112411374A (en) * | 2020-10-10 | 2021-02-26 | 江苏法尔胜缆索有限公司 | Manufacturing and construction method of carbon fiber inhaul cable |
| CN115534431A (en) * | 2022-10-11 | 2022-12-30 | 天津工业大学 | Continuous fabric reinforced mortar composite material and preparation method thereof |
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| CN1644791A (en) * | 2005-01-25 | 2005-07-27 | 江苏法尔胜新日制铁缆索有限公司 | Supehigh strength parallel steel wire durable cables |
| CN202323723U (en) * | 2011-11-11 | 2012-07-11 | 柳州豪姆机械有限公司 | Self-feeding all-weather epoxy mortar filling pump |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005513A (en) * | 2014-06-09 | 2014-08-27 | 天津大学 | Carbon fiber reinforced plastics (CFRP) inhaul cable of cable-supported structure |
| CN110067199A (en) * | 2019-05-22 | 2019-07-30 | 山东非金属材料研究所 | One kind preventing the big pulling force list rope of swollen type carbon fiber enhancement resin base composite material, preparation method and its application |
| CN112411374A (en) * | 2020-10-10 | 2021-02-26 | 江苏法尔胜缆索有限公司 | Manufacturing and construction method of carbon fiber inhaul cable |
| CN113789720A (en) * | 2020-10-10 | 2021-12-14 | 江苏法尔胜缆索有限公司 | Construction method of carbon fiber inhaul cable |
| CN115534431A (en) * | 2022-10-11 | 2022-12-30 | 天津工业大学 | Continuous fabric reinforced mortar composite material and preparation method thereof |
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Application publication date: 20140108 |