CN103496175A - Method for manufacturing reinforcing rib formed in an integrated winding mode and applied to glass reinforced plastic chimney flue - Google Patents
Method for manufacturing reinforcing rib formed in an integrated winding mode and applied to glass reinforced plastic chimney flue Download PDFInfo
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- CN103496175A CN103496175A CN201310504858.7A CN201310504858A CN103496175A CN 103496175 A CN103496175 A CN 103496175A CN 201310504858 A CN201310504858 A CN 201310504858A CN 103496175 A CN103496175 A CN 103496175A
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- reinforcement
- internal mold
- reinforcing rib
- reinforced plastic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
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- Mechanical Engineering (AREA)
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- Composite Materials (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a method for manufacturing a reinforcing rib formed in an integrated winding mode and applied to a glass reinforced plastic chimney flue. The method for manufacturing the reinforcing rib formed in the integrated winding mode and applied to the glass reinforced plastic chimney flue comprises the steps of manufacturing of an inner mould of the reinforced rib (1) and manufacturing of a reinforced rib body (2). According to the method for manufacturing the reinforcing rib formed in the integrated winding mode and applied to the glass reinforced plastic chimney flue, according to the structure features of the reinforcing rib of the chimney flue, the manufacturing method that the inner mould of the reinforcing rib is selected through a great number of experiments is applied, the manufacturing technology that the reinforcing rib body is formed in a winding mode is applied, the operability of the whole manufacturing technology is high, the glass reinforced plastic chimney flue and the reinforcing rib can be formed in an integrated and on-off mode, and the mechanical property is good; the semicircular section of the reinforcing rib is flat and smooth, and therefore the phenomenon of local stress concentration can be effectively avoided; due to the fact that polyurethane foaming does not need to be applied to the reinforcing rib, the installation difficulty of the inner mould of the reinforcing rib can be greatly reduced, mechanization operation can be achieved, the production efficiency is higher, and cost is lower; in addition, the method that the reinforcing rib is manufactured through continuous winding of fiber yarn is applied, so that the integrity of the structure is guaranteed and a smooth and attractive appearance can be obtained.
Description
Technical field
The present invention relates to a kind of preparation method of fiber glass reinforced plastic chimney, be specifically related to a kind of preparation method of the Wrapping formed reinforcement of integral body of fiber glass reinforced plastic chimney flue.
Background technology
Desulfurization at present mainly adopts wet desulphurization (FGD) and does not install flue gas heating system (GGH) technique additional.The flue gas after desulfurization temperature, 50 ℃ of left and right, easily condenses into the corrosivity acid solution on inner wall of stack, has accelerated the corrosion to chimney; Also to consider the high temperature under accident condition simultaneously.Glass-reinforced plastic material has the advantages such as light weight, high-strength, corrosion-resistant, partiting thermal insulation, anti-TRANSIENT HIGH TEMPERATURE ablation, shape and intensity designability are strong, short construction period, the life-span is long, comprehensive cost is low, has more application advantage in the FGD system.Prior art, in the production process of chimney air flue, need to arrange modal circumferential stiffening rib on chimney air flue, and the effect of reinforcement is the rigidity that strengthens chimney air flue, existing reinforcement mostly is trapezoidal hollow section, hand is stuck with paste split production, and inner polyurethane foam, affect operating efficiency; Simultaneously the heat release meeting produces distortion during polyurethane foam, is difficult for adjusting, and each split interface is uneven, the left and right distortion; Be wound around in addition yarn and only be wound around at reinforcement housing upside and both sides, trapezoidal waist location is not wound around reinforcement, and the reinforcement globality is poor, intensity difference.Therefore, on the basis of existing technology necessary, research and develop a kind of easy to make, intensity is high, presentation quality good, the preparation method of the Wrapping formed reinforcement of integral body that can integrated fiber glass reinforced plastic chimney flue.
Summary of the invention
Goal of the invention: the objective of the invention is in order to solve the deficiencies in the prior art, provide a kind of technological design reasonable, easy to make, can simplify chimney air flue flue muscle tool production process, do not need when producing chimney air flue, reinforcement to be carried out to polyurethane foam at every turn, reduce the installation difficulty of reinforcement internal mold, the preparation method of the Wrapping formed reinforcement of integral body of the fiber glass reinforced plastic chimney flue of enhancing productivity.The method is wound around starting point by adjustment simultaneously, realize the wide-angle spiral winding in short stroke, make reinforcement helically-wound shaped, guarantee structural intergrity, with chimney barrel energy integral one-step molding, mechanical property is better, and semicircular reinforcement cross section is smooth gently, stress raisers can be effectively avoided, and the surface of smooth and beautiful appearance can be obtained; Guarantee reinforcement quality and intensity.
Technical scheme: for realizing purpose of the present invention, the technical solution used in the present invention is:
A kind of preparation method of the Wrapping formed reinforcement of integral body of fiber glass reinforced plastic chimney flue comprises the following steps:
The preparation of a, reinforcement internal mold:
At first according to the dimensional requirement of fiber glass reinforced plastic chimney flue reinforcement, select the former of the cement making of suitable diameter, be made into 1/4 split reinforcement internal mold, concrete steps are:
The female mold surfaces of making at cement applies releasing agent, repave deposited polyester film, and film is processed smooth, then the chopped felt that paving is applied 1 to 2 layer of 450 g/ ㎡ in order, then used hairbrush coated with resins on chopped felt, then repaves the woven roving that applies 2 to 3 layers of 600 g/ ㎡, curing and demolding, use cutting machine that flange is cut away, obtain 1/4 split reinforcement internal mold, 4 1/4 split reinforcement internal molds form the reinforcement internal mold;
The preparation of b, reinforcement body:
Get the 1/4 split reinforcement internal mold that step a prepares, use the steel construction positioner that the reinforcement internal mold is fixed on the chimney air flue cylindrical shell, then use 3 to 4 layers of chopped felt that infiltrates resin, reinforcement internal mold and cylindrical shell are bonded together, after solidifying, remove the steel construction positioner, then by above identical step, other 3 1/4 reinforcement internal molds are installed and are bonded on cylindrical shell, then the interface of each reinforcement internal mold is used to complete ring stiffener internal mold of 3 to 4 layers of bonding formation of chopped felt, then according to the size of mode diameter in chimney air flue cylindrical shell and ring stiffener, pass through computer program, a minute hop count is set etc., adjust and be wound around dolly starting position, the ring stiffener internal mold rotates and drives the winding yarn that infiltrates resin, the winding dolly automatically moves back and forth, be wound around the yarn winding of spinning on cylindrical shell, until be wound to the thickness of setting.
As preferred version, the integral body of above-described fiber glass reinforced plastic chimney flue is wound around the preparation method of reinforcement, and the described reinforcement internal mold of step a (1) can adopt isophthalic or vinylite to make.
As preferred version, the integral body of above-described fiber glass reinforced plastic chimney flue is wound around the preparation method of reinforcement, and the described resin of step b is consistent with the structure sheaf resin of cylindrical shell.
As preferred version, the integral body of above-described fiber glass reinforced plastic chimney flue is wound around the preparation method of reinforcement, and step a prepares reinforcement internal mold (1) and do not need to carry out polyurethane foam.
Beneficial effect: compared to the prior art the preparation method of the Wrapping formed reinforcement of integral body of fiber glass reinforced plastic chimney flue provided by the invention has the following advantages:
The preparation method of the Wrapping formed reinforcement of integral body of fiber glass reinforced plastic chimney flue provided by the invention, design feature according to the chimney air flue reinforcement, screen the preparation method of reinforcement internal mold by great many of experiments, then screen the Wrapping formed preparation technology of reinforcement body by great many of experiments, whole technique is workable, fiber glass reinforced plastic chimney and reinforcement body can be Integratively formed, and mechanical property is better; Semicircle reinforcement cross section is smooth gently, can effectively avoid the stress raisers phenomenon, in preparation process, do not need reinforcement is carried out to polyurethane foam, can greatly reduce the installation difficulty of reinforcement internal mold, and can do mechanization operation, production efficiency is higher, and cost is lower, and the continuous winding silvalin is made the surface that reinforcement can guarantee structural intergrity and can obtain smooth and beautiful appearance, can overcome many deficiencies of prior art.
The accompanying drawing explanation
The structural representation that Fig. 1 is reinforcement body preparation process in step b of the present invention.
Fig. 2 is the structural representation in the cross section of reinforcement body of the present invention.
Fig. 3 is the structural representation of split reinforcement internal mold of the present invention.
The specific embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment only is not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Embodiment 1
A kind of preparation method of the Wrapping formed reinforcement of integral body of fiber glass reinforced plastic chimney flue, it comprises the following steps:
The preparation of a, reinforcement internal mold (1):
At first according to the dimensional requirement of fiber glass reinforced plastic chimney flue reinforcement, select the former of the cement making of suitable diameter, be made into 1/4 split reinforcement internal mold, concrete steps are:
The female mold surfaces of making at cement applies releasing agent, repave deposited polyester film, and film is processed smooth, the chopped felt that then paving is applied 1 to 2 layer of 450 g/ ㎡ in order, then used hairbrush coated with resins on chopped felt, then repave the woven roving that applies 2 to 3 layers of 600 g/ ㎡, curing and demolding, used cutting machine that flange is cut away, and obtains 1/4 split reinforcement internal mold (3), as shown in Figure 3,4 1/4 split reinforcement internal molds (3) form reinforcement internal mold (1);
The preparation of b, reinforcement body (2):
As shown in Figure 1, get the 1/4 split reinforcement internal mold (3) that step a prepares, use steel construction positioner (4) that reinforcement internal mold (1) is fixed on chimney air flue cylindrical shell (5), then use 3 to 4 layers of chopped felt that infiltrates resin, reinforcement internal mold (1) and cylindrical shell (5) are bonded together, after solidifying, remove steel construction positioner (4), then by above identical step, other 3 1/4 split reinforcement internal molds (3) are installed and are bonded on cylindrical shell (5), then the interface of each reinforcement internal mold (1) is used to complete ring stiffener internal mold of 3 to 4 layers of bonding formation of chopped felt, then according to the size of chimney air flue cylindrical shell (5) and ring stiffener internal mold (1) diameter, pass through computer program, a minute hop count is set etc., adjust and be wound around dolly (6) starting position, ring stiffener internal mold (1) rotates and drives the winding yarn that infiltrates resin, being wound around dolly (6) automatically moves back and forth, be wound around the yarn winding of spinning on cylindrical shell (5), until be wound to the thickness of setting, muscle body (2) is strengthened, as shown in Figure 2.
The integral body of above-described fiber glass reinforced plastic chimney flue is wound around the preparation method of reinforcement, and the described reinforcement internal mold of step a (1) can adopt isophthalic or vinylite to make.
The integral body of above-described fiber glass reinforced plastic chimney flue is wound around the preparation method of reinforcement, and the described resin of step b is consistent with the structure sheaf resin of cylindrical shell.
The integral body of above-described fiber glass reinforced plastic chimney flue is wound around the preparation method of reinforcement, and step a prepares reinforcement internal mold (1) and do not need to carry out polyurethane foam.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. the preparation method of the Wrapping formed reinforcement of integral body of a fiber glass reinforced plastic chimney flue, is characterized in that, comprises the following steps:
The preparation of a, reinforcement internal mold (1):
At first according to the dimensional requirement of fiber glass reinforced plastic chimney flue reinforcement, select the former of the cement making of suitable diameter, be made into 1/4 split reinforcement internal mold, concrete steps are:
The female mold surfaces of making at cement applies releasing agent, repave deposited polyester film, and film is processed smooth, then the chopped felt that paving is applied 1 to 2 layer of 450 g/ ㎡ in order, then used hairbrush coated with resins on chopped felt, then repaves the woven roving that applies 2 to 3 layers of 600 g/ ㎡, curing and demolding, use cutting machine that flange is cut away, obtain 1/4 split reinforcement internal mold (3), 4 1/4 split reinforcement internal molds (3) form reinforcement internal mold (1);
The preparation of b, reinforcement body (2):
Get the 1/4 split reinforcement internal mold (3) that step a prepares, use steel construction positioner (4) that reinforcement internal mold (1) is fixed on chimney air flue cylindrical shell (5), then use 3 to 4 layers of chopped felt that infiltrates resin, reinforcement internal mold (1) and cylindrical shell (5) are bonded together, after solidifying, remove steel construction positioner (4), then by above identical step, other 3 1/4 split reinforcement internal molds (3) are installed and are bonded on cylindrical shell (5), then the interface of each reinforcement internal mold (1) is used to complete ring stiffener internal mold of 3 to 4 layers of bonding formation of chopped felt, then according to the size of chimney air flue cylindrical shell (5) and ring stiffener internal mold (1) diameter, pass through computer program, a minute hop count is set etc., adjust and be wound around dolly (6) starting position, ring stiffener internal mold (1) rotates and drives the winding yarn that infiltrates resin, being wound around dolly (6) automatically moves back and forth, be wound around the yarn winding of spinning on cylindrical shell (5), until be wound to the thickness of setting.
2. the preparation method of the Wrapping formed reinforcement of integral body of fiber glass reinforced plastic chimney flue according to claim 1, it is characterized in that: the described resin of step a is isophthalic or vinylite.
3. the preparation method of the Wrapping formed reinforcement of integral body of fiber glass reinforced plastic chimney flue according to claim 1, it is characterized in that: the described resin of step b is isophthalic or vinylite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310504858.7A CN103496175B (en) | 2013-10-24 | 2013-10-24 | A kind of preparation method of the Wrapping formed reinforcement of entirety of fiber glass reinforced plastic chimney flue |
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| CN201310504858.7A CN103496175B (en) | 2013-10-24 | 2013-10-24 | A kind of preparation method of the Wrapping formed reinforcement of entirety of fiber glass reinforced plastic chimney flue |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924819A (en) * | 2014-04-03 | 2014-07-16 | 李芝春 | Flame-retardant and anticorrosion wet chimney with glass fiber reinforced plastic structure for thermal power plant |
| CN104943150A (en) * | 2015-06-27 | 2015-09-30 | 宁波淳源环保科技有限公司 | Manufacturing machine for ring-shaped reinforcing rib |
| CN106863837A (en) * | 2017-02-14 | 2017-06-20 | 湖北三江航天红阳机电有限公司 | Modal circumferential stiffening rib forming method in a kind of composite material casing |
| CN111438963A (en) * | 2020-04-15 | 2020-07-24 | 连云港中复连众复合材料集团有限公司 | Preparation method of continuously-wound glass fiber reinforced plastic ribbed pipe |
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| CN2911454Y (en) * | 2006-06-02 | 2007-06-13 | 河北可耐特玻璃钢有限公司 | High strength large aperture fiber glass reinforced plastic smoke flue |
| CN202556721U (en) * | 2012-06-01 | 2012-11-28 | 冀州中意复合材料科技有限公司 | Device for producing large diameter glass reinforced plastic flue |
| CN202747372U (en) * | 2012-09-26 | 2013-02-20 | 河北可耐特玻璃钢有限公司 | Glass fiber reinforced plastic flue |
| CN103085411A (en) * | 2013-01-25 | 2013-05-08 | 合肥海银杆塔有限公司 | Composite material pipeline as well as preparation method and application thereof |
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2013
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Patent Citations (4)
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| CN2911454Y (en) * | 2006-06-02 | 2007-06-13 | 河北可耐特玻璃钢有限公司 | High strength large aperture fiber glass reinforced plastic smoke flue |
| CN202556721U (en) * | 2012-06-01 | 2012-11-28 | 冀州中意复合材料科技有限公司 | Device for producing large diameter glass reinforced plastic flue |
| CN202747372U (en) * | 2012-09-26 | 2013-02-20 | 河北可耐特玻璃钢有限公司 | Glass fiber reinforced plastic flue |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924819A (en) * | 2014-04-03 | 2014-07-16 | 李芝春 | Flame-retardant and anticorrosion wet chimney with glass fiber reinforced plastic structure for thermal power plant |
| CN103924819B (en) * | 2014-04-03 | 2016-03-30 | 李芝春 | A kind of thermal power plant's Wet chimney of fire retardant, anticorrosive glass fibre reinforced plastic structure |
| CN104943150A (en) * | 2015-06-27 | 2015-09-30 | 宁波淳源环保科技有限公司 | Manufacturing machine for ring-shaped reinforcing rib |
| CN106863837A (en) * | 2017-02-14 | 2017-06-20 | 湖北三江航天红阳机电有限公司 | Modal circumferential stiffening rib forming method in a kind of composite material casing |
| CN106863837B (en) * | 2017-02-14 | 2018-12-07 | 湖北三江航天红阳机电有限公司 | Modal circumferential stiffening rib forming method in a kind of composite material casing |
| CN111438963A (en) * | 2020-04-15 | 2020-07-24 | 连云港中复连众复合材料集团有限公司 | Preparation method of continuously-wound glass fiber reinforced plastic ribbed pipe |
| CN111438963B (en) * | 2020-04-15 | 2022-03-18 | 连云港中复连众复合材料集团有限公司 | Preparation method of continuously-wound glass fiber reinforced plastic ribbed pipe |
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| CN103496175B (en) | 2015-11-18 |
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