CN103042703A - Vacuum infusion method for bonding flange - Google Patents
Vacuum infusion method for bonding flange Download PDFInfo
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- CN103042703A CN103042703A CN 201110308660 CN201110308660A CN103042703A CN 103042703 A CN103042703 A CN 103042703A CN 201110308660 CN201110308660 CN 201110308660 CN 201110308660 A CN201110308660 A CN 201110308660A CN 103042703 A CN103042703 A CN 103042703A
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- bonding flange
- vacuum
- vacuum bag
- flange
- laying
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Abstract
The invention discloses a vacuum infusion method for a bonding flange. The method comprises the following steps of laying a bonding flange layer at the area of the bonding flange after pneumatic surface blade lay-up is finished; subsequently laying a first vacuum bag wrapping all layers in the vacuum bag and vacuum-pumping, then removing gauffers to make the layer of the bonding flange flat and smooth; vacuum-pumping continuously to make the first vacuum bag coat the bonding flange and keep smooth; subsequently placing a mold for the bonding flange on the first vacuum bag and locating well, then applying bonding flange on the mold for the bonding flange along with the shape of the mold; then arranging a second vacuum bag wrapping the layers, the first vacuum bag and the mold for the bonding flange therein and vacuum-pumping; and finally curing and shaping the bonding flange and the pneumatic surface blade together by using a vacuum infusion method. The method can increase efficiency, strengthen product strength and reduce resin usage. The operation is relatively simple by curing and shaping the bonding flange and the pneumatic surface blade together.
Description
Technical field
The present invention relates to the moulding of bonding flange in the wind electricity blade making, more particularly, is a kind of bonding flange priming by vacuum method.
Background technology
Wind electricity blade is made the field, and a kind of forming method that usage comparison is many at present is to produce first two and half leaf shells, then with blade of it bonding formation.But limited by blade shape, a lot of positions bond area is minimum, can't guarantee bonding strength.For addressing this problem, bonding front common meeting is extended a bonding flange steel in one and half leaf shell inboards along blade shape, Here it is bonding flange.
Present bonding flange production substantially all is to use the hand pasting forming method, and this method shortcoming is that efficient is low, and intensity is low, and resin waste is many, and is influenced by ambient temperature large.The method that bonding flange vacuum infusion molding is also arranged in the prior art, but operation is more loaded down with trivial details, high to employee's job requirements.
Summary of the invention
Technical problem to be solved by this invention is: improve bonding flange make efficiency, reduce the fussy degree of bonding flange vacuum infusion molding method.
For solving the problems of the technologies described above, the invention discloses a kind of method of the flange priming by vacuum that bonds, may further comprise the steps:
After pneumatic blade laying finishes, continue to lay bonding flange laying in the bonding flange region.Lay subsequently the first vacuum bag, be wrapped in all layings interior and vacuumize.Then eliminate gauffer, make described bonding flange laying keep smooth-going.Continue to vacuumize, make described the first vacuum bag coat described bonding flange and smooth.The flange mould that will bond subsequently is placed on the described ground floor vacuum bag and has good positioning, and then described bonding flange conformal is fitted on the described bonding flange mould.Second layer vacuum bag then is set, in described laying, ground floor vacuum bag and bonding flange mould are wrapped in, vacuumizes.Make at last described bonding flange and described pneumatic blade adopt together priming by vacuum method curing molding.
The method of bonding flange of the present invention priming by vacuum and the topmost difference of prior art are the method for using vacuum bag repeatedly to vacuumize, the step that wherein vacuumizes is relatively independent, repetitive operation is raised the efficiency effectively until satisfy corresponding process conditions separately.The gentle moving face blade of the flange that bonds in addition adopts priming by vacuum method curing molding together, can strengthen the intensity of product.
Description of drawings
Fig. 1 is principle of the invention flow chart.
The specific embodiment
Further specify technical scheme of the present invention below in conjunction with drawings and Examples.
The bond method of flange priming by vacuum of the present invention may further comprise the steps:
Step 1: after pneumatic blade laying finishes, continue to lay bonding flange laying in the bonding flange region.
Step 2: lay the first vacuum bag all layings are wrapped in (described bonding flange region must be reserved enough surpluses) and vacuumize.
In step 2, the preparation method of described the first vacuum bag is:
1) use first air guide felt (playing protection and air guide effect) to encase described bonding flange four limits, fixing with pressure sensitive adhesive tape (heatproof adhesive tape), purpose is to prevent that sharp comer from puncturing airtight skin, does not reach vacuum effectiveness.
2) use again double-deck cotton felt bound edge, use the heatproof immobilization with adhesive tape, further intercept described bonding flange and described airtight outer field distance, strengthen the flowability of air.
3) wrap described bonding flange with the described airtight skin that has cut out, seal four limits with sealant tape, make a vacuum bag.
In step 2, the described method that vacuumizes is:
1) according to the size of described bonding flange, lay a vacuum slot in the both sides symmetry, cotton felt of pad below the described vacuum slot, purpose is better suck, and in order to avoid the vacuum slot of described metal scratches described bonding flange surface.
2) seal distance between described vacuum slot and the described airtight skin with vacuum compound.
3) forvacuum checks described airtight outer field sealing situation.
Step 3: when described the first vacuum bag and other materials (such as glass-fiber-fabric etc.) fit together but during malcompression, time-out vacuumizes, and the laying of described bonding flange is holded up, and up lifts gently, eliminates gauffer, makes described bonding flange laying keep smooth-going.
Step 4: continue to vacuumize, make described the first vacuum bag coat described bonding flange and smooth.
Step 5: the flange mould that will bond is placed on described the first vacuum bag and has good positioning, and then described bonding flange conformal is fitted on the described bonding flange mould.
Step 6: second layer vacuum bag is set, in described laying, the first vacuum bag and bonding flange mould are wrapped in, vacuumizes.
If the result that vacuum bag vacuumizes does not also reach desirable process conditions, above-mentioned step 2～6 can operate repeatedly, until the bonding flange after vacuumizing meets desirable process conditions.
Step 7: make at last described bonding flange and described pneumatic blade adopt together priming by vacuum method curing molding.
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.
Claims (4)
1. the method for flange priming by vacuum that bonds is characterized in that, may further comprise the steps:
After pneumatic blade laying finishes, continue to lay bonding flange laying in the bonding flange region;
Lay the first vacuum bag, be wrapped in all layings interior and vacuumize;
Eliminate gauffer, make described bonding flange laying keep smooth-going;
Continue to vacuumize, make described the first vacuum bag coat described bonding flange and smooth;
The flange mould that will bond is placed on the described ground floor vacuum bag and has good positioning, and then described bonding flange conformal is fitted on the described bonding flange mould;
Second layer vacuum bag is set, in described laying, ground floor vacuum bag and bonding flange mould are wrapped in, vacuumizes;
Make at last described bonding flange and described pneumatic blade adopt together priming by vacuum method curing molding.
2. the method for claim 1 is characterized in that:
Described elimination gauffer step refers to, makes described bonding flange laying keep smooth-going method for fitting together when described vacuum bag and other materials but during malcompression, time-out vacuumizes, and the laying of described bonding flange is holded up, and up lifts gently.
3. the method for claim 1 is characterized in that:
The making of described the first vacuum bag further comprises the steps:
Encase described bonding flange four limits with the air guide felt first, fix with pressure sensitive adhesive tape;
Use again double-deck cotton felt bound edge, use the heatproof immobilization with adhesive tape;
Wrap described bonding flange with the described airtight skin that has cut out, seal four limits with sealant tape, make a vacuum bag.
4. the method for claim 1 is characterized in that:
Described vacuumizing further comprises the steps:
According to the size of described bonding flange, lay a vacuum slot in the both sides symmetry, cotton felt of pad below the described vacuum slot, suck better, and in order to avoid the vacuum slot of described metal scratches described bonding flange surface;
Seal distance between described vacuum slot and the described airtight skin with vacuum compound;
Forvacuum checks described airtight outer field sealing situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110308660 CN103042703A (en) | 2011-10-12 | 2011-10-12 | Vacuum infusion method for bonding flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110308660 CN103042703A (en) | 2011-10-12 | 2011-10-12 | Vacuum infusion method for bonding flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103042703A true CN103042703A (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110308660 Pending CN103042703A (en) | 2011-10-12 | 2011-10-12 | Vacuum infusion method for bonding flange |
Country Status (1)
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| CN (1) | CN103042703A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434145A (en) * | 2013-08-20 | 2013-12-11 | 奇瑞汽车股份有限公司 | Vacuum leading-in method, product produced by adopting method and vacuum leading-in device |
| CN105058813A (en) * | 2015-07-27 | 2015-11-18 | 吉林重通成飞新材料股份公司 | Integral forming method for wind power blade connecting angle |
| CN111186145A (en) * | 2019-12-28 | 2020-05-22 | 中材科技(萍乡)风电叶片有限公司 | Wind power blade die assembly method |
-
2011
- 2011-10-12 CN CN 201110308660 patent/CN103042703A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434145A (en) * | 2013-08-20 | 2013-12-11 | 奇瑞汽车股份有限公司 | Vacuum leading-in method, product produced by adopting method and vacuum leading-in device |
| CN105058813A (en) * | 2015-07-27 | 2015-11-18 | 吉林重通成飞新材料股份公司 | Integral forming method for wind power blade connecting angle |
| CN111186145A (en) * | 2019-12-28 | 2020-05-22 | 中材科技(萍乡)风电叶片有限公司 | Wind power blade die assembly method |
| CN111186145B (en) * | 2019-12-28 | 2022-04-08 | 中材科技(萍乡)风电叶片有限公司 | Wind power blade die assembly method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130417 |