CN114193791B - Shell pouring technology for advanced forming of connecting angle - Google Patents
Shell pouring technology for advanced forming of connecting angle Download PDFInfo
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- CN114193791B CN114193791B CN202111510418.3A CN202111510418A CN114193791B CN 114193791 B CN114193791 B CN 114193791B CN 202111510418 A CN202111510418 A CN 202111510418A CN 114193791 B CN114193791 B CN 114193791B
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- glue
- bag film
- vacuum bag
- laying
- connecting angle
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- 238000005516 engineering process Methods 0.000 title abstract description 3
- 238000000034 method Methods 0.000 claims abstract description 28
- 230000008569 process Effects 0.000 claims abstract description 24
- 239000003365 glass fiber Substances 0.000 claims abstract description 10
- 238000007711 solidification Methods 0.000 claims abstract description 10
- 230000008023 solidification Effects 0.000 claims abstract description 10
- 230000010412 perfusion Effects 0.000 claims abstract description 7
- 239000003292 glue Substances 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 34
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000012790 confirmation Methods 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000012945 sealing adhesive Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B29C70/342—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 using isostatic pressure
-
- 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
- B29C70/36—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 impregnating by casting, e.g. vacuum casting
-
- 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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Abstract
The patent relates to the technical field of wind power blade production and manufacturing, in particular to a shell pouring process for forming a connecting angle in advance, which comprises the following steps: s1: the connecting angle is poured and molded in advance; s2: the connecting angle formed by pouring in advance in S1 is formed by pouring together with the shell; in this scheme in advance the shaping junction angle be the solidification in advance, strengthen glass fiber and casing solidification together, reduce and wait for former junction angle preparation and curing time, reduce the shaping time of blade pre-curing stage, promote the fashioned whole cycle of casing, solved the long problem of present perfusion technology curing time.
Description
Technical Field
The invention relates to the technical field of wind power blade production and manufacturing, in particular to a shell pouring process for early forming of a connecting angle.
Background
The main components of the blade required by wind power are PS surface shells, SS surface shells, webs, liang Mao, connection angles of the SS surface shells and the PS surface shells and other main stress parts, the bonding of the SS surface shells and the PS surface shells is required to be carried out through the connection angles, the connection angles are generally formed by pouring together with the shells in the forming process, the curing time of the whole shell can be prolonged by about 60 minutes through the pouring process, the positioning precision of a connection angle tool is required to be high, the forming process not only prolongs the forming period of the blade, but also is required to concentrate main efforts in unnecessary areas, and the waste of labor hours is caused.
Disclosure of Invention
The invention aims to provide a shell pouring process for forming a connecting angle in advance, so as to solve the problem of long curing time of the existing pouring process.
In order to achieve the above object, the basic scheme of the present invention is as follows: a shell pouring process for forming a connecting angle in advance comprises the following steps:
s1: the connecting angle is poured and molded in advance;
s2: the connecting angle formed by pouring in advance in S1 is formed by pouring together with the shell;
the step S2 specifically includes: s2-1: preparing a shell mould: the surface of the mould is cleaned, so that the surface of the mould is clean, no phenomena of unevenness, bubbles, scratches and cracks are caused, the surface is coated with a release agent, and a sealing rubber strip is placed;
s2-2: and (3) arranging auxiliary materials on the lower surface: laying a demolding cloth on the lower surface of a mold, and placing a unidirectional breathable film on the air extraction surface of one layer of the mold;
s2-3: laying a shell structure layer: laying an outer skin, lifting points for reinforcement, transporting reinforcement, tip reinforcement, laying a rear edge prefabricated UD, placing Liang Mao, laying a sandwich material, and symmetrically arranging reinforcing glass fibers on the sandwich material;
s2-4: placing a connection angle formed in advance: placing a connecting angle according to the parting line, and laying the reinforced glass fiber of the SS surface shell with accurate axial section position;
s2-5: upper surface auxiliary material arrangement: laying a demolding cloth on the upper surface of the mold, and placing a composite net film according to the distance from the parting line, wherein the composite net film is not placed in a connecting angle area formed in advance;
s2-6: and (3) designing a whole perfusion system: spiral pipe air suction is arranged at the outer side of a connecting angle area formed in advance, after the other areas are paved according to auxiliary materials of the whole drawing, a vacuum bag film is sealed, and the vacuum bag film is paved according to the molded surface of a shell mold;
s2-7: confirmation before glue injection: checking the vacuum degree of the vacuum bag film before injecting glue, and determining whether the proportion, temperature and bubble density in the glue meet the requirements;
s2-8: and (3) glue injection: in the process of injecting the glue, controlling the flow rate according to the height of the actual liquid level until the glue is completely soaked, stopping injecting the glue, and starting a heating program;
s2-9: removing auxiliary materials: after solidification, removing auxiliary materials such as a vacuum bag film, a honeycomb duct, an injecting glue seat and the like, and marking the chord-wise bonding width.
Further, the step S1 specifically includes: s1-1: preparing a connection angle profile tool: the surface of the tool is cleaned, the surface of the tool is free from the phenomena of unevenness, bubbles, scratches and cracks, and the surface is coated with a release agent;
s1-2: and (3) arranging auxiliary materials on the lower surface: laying demolding cloth on the lower surface of the connecting angle profile tool, and placing a sealing adhesive tape;
s1-3: laying a connecting angle structure layer;
s1-4: upper surface auxiliary material arrangement: laying a demolding cloth on the upper surface of the connecting angle-shaped surface tool, and placing a composite net film according to the distance from the parting line;
s1-5: and (3) designing a whole perfusion system: arranging spiral pipe air suction at the topmost end of the connecting angle profile, arranging ohmic pipes at the bottom ends of two sides of the profile tool, laying other auxiliary materials according to drawing requirements, sealing a vacuum bag film after the whole auxiliary materials are laid, and laying the vacuum bag film according to the tool profile;
s1-6: confirmation before glue injection: checking the vacuum degree of the vacuum bag film before injecting glue, and determining whether the proportion, temperature and bubble density in the glue meet the requirements;
s1-7: and (3) glue injection: in the process of injecting the glue, controlling the flow rate according to the height of the actual liquid level until the glue is completely soaked, stopping injecting the glue, and starting a heating program;
s1-8: cutting and repairing: after solidification, removing auxiliary materials such as a vacuum bag film, a honeycomb duct, an injecting glue seat and the like, marking a die joint seam, an axial cutting line and a chord cutting line, and finishing cutting operation.
Further, the step S2-4 further comprises: after the connection angle is placed, observing the laminating degree of the side surface, laying the reinforced glass fiber of the SS surface shell after the laminating degree meets the requirement, and if the laminating degree cannot meet the requirement, carrying out plasticity on the connection angle again.
Further, the step S2-6 further comprises: if a gap exists between the vacuum bag film and the molded surface of the shell mold, reducing the air pressure in the vacuum bag film, and vacuumizing again after readjusting.
Further, the step S2-7 of checking the vacuum degree of the vacuum bag film specifically includes: the vacuum degree in the vacuum bag film needs to be extracted to be lower than 30mbar for starting detection, and the change of the vacuum meter reading is less than or equal to 30mbar within 5 minutes.
Further, in the step S1-5, the ohmic tube is an ohmic tube with a backing plate or an ohmic tube without a backing plate is used, and a flow guide backing plate is paved below the ohmic tube.
Further, the step S1-5 further comprises: if a gap exists between the vacuum bag film and the tool profile, reducing the air pressure in the vacuum bag film, and vacuumizing again after readjusting.
Further, the step S1-6 of checking the vacuum degree of the vacuum bag film specifically includes: the vacuum degree in the vacuum bag film needs to be extracted to be lower than 30mbar for starting detection, and the change of the vacuum meter reading is less than or equal to 30mbar within 5 minutes.
The beneficial effect of this scheme: (1) In this scheme shaping connecting angle in advance is the solidification in advance, strengthens glass fiber and casing solidification together, reduces and waits former connecting angle preparation and curing time, reduces the shaping time of blade pre-curing stage, promotes the fashioned whole cycle of casing.
(2) In this scheme, the connecting angle takes shape in advance, reduces because of the required independent heating equipment of the heating of connecting region, reduces unnecessary energy consumption.
(3) The connection angle is formed in advance, so that the defect of the area can be identified and prevented in advance, and the product quality of the area is improved.
Drawings
Fig. 1 is a schematic flow chart of an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Substantially as shown in figure 1: a shell pouring process for forming a connecting angle in advance comprises the following steps:
s1: the connecting angle is poured and molded in advance;
s2: the connecting angle formed by pouring in advance in S1 is formed by pouring together with the shell;
the step S1 specifically comprises the following steps: s1-1: preparing a connection angle profile tool: the surface of the tool is cleaned, the surface of the tool is free from the phenomena of unevenness, bubbles, scratches and cracks, and the surface is coated with a release agent;
s1-2: and (3) arranging auxiliary materials on the lower surface: laying demolding cloth on the lower surface of the connecting angle profile tool, and placing a sealing adhesive tape;
s1-3: laying a connecting angle structure layer;
s1-4: upper surface auxiliary material arrangement: laying a demolding cloth on the upper surface of the connecting angle-shaped surface tool, and placing a composite net film according to the distance from the parting line;
s1-5: and (3) designing a whole perfusion system: arranging spiral pipe air suction at the topmost end of the connecting angle profile, arranging ohmic pipes at the bottom ends of two sides of the profile tool, wherein the ohmic pipes are ohmic pipes with backing plates or ohmic pipes without backing plates, paving a flow guide backing plate below the ohmic pipes, paving other auxiliary materials according to drawing requirements, sealing a vacuum bag film after the whole auxiliary materials are paved, paving the vacuum bag film according to the tool profile, and vacuumizing again after the air pressure in the vacuum bag film is readjusted if a gap exists between the vacuum bag film and the tool profile;
s1-6: confirmation before glue injection: checking the vacuum degree of the vacuum bag film before injecting the glue, wherein the vacuum degree in the vacuum bag film needs to be extracted to be lower than 30mbar and starts to be checked, the reading change of a vacuum meter is less than or equal to 30mbar within 5 minutes, and determining whether the proportion, the temperature and the bubble density in the glue meet the requirements;
s1-7: and (3) glue injection: in the process of injecting the glue, controlling the flow rate according to the height of the actual liquid level until the glue is completely soaked, stopping injecting the glue, and starting a heating program;
s1-8: cutting and repairing: after solidification, removing auxiliary materials such as a vacuum bag film, a honeycomb duct, an injecting glue seat and the like, marking a die joint seam, an axial cutting line and a chord cutting line, and finishing cutting operation;
the step S2 specifically comprises the following steps: s2-1: preparing a shell mould: the surface of the mould is cleaned, so that the surface of the mould is clean, no phenomena of unevenness, bubbles, scratches and cracks are caused, the surface is coated with a release agent, and a sealing rubber strip is placed;
s2-2: and (3) arranging auxiliary materials on the lower surface: laying a demolding cloth on the lower surface of a mold, and placing a unidirectional breathable film on the air extraction surface of one layer of the mold;
s2-3: laying a shell structure layer: laying an outer skin, lifting points for reinforcement, transporting reinforcement, tip reinforcement, laying a rear edge prefabricated UD, placing Liang Mao, laying a sandwich material, and symmetrically arranging reinforcing glass fibers on the sandwich material;
s2-4: placing a connection angle formed in advance: placing a connecting angle according to the parting line, placing the axial section at an accurate position, observing the bonding degree of the side surface after placing the connecting angle, and laying the reinforced glass fiber of the SS surface shell after the bonding degree meets the requirement, wherein if the bonding degree cannot meet the requirement, the plasticity of the connecting angle is required to be re-performed;
s2-5: upper surface auxiliary material arrangement: laying a demolding cloth on the upper surface of the mold, and placing a composite net film according to the distance from the parting line, wherein the composite net film is not placed in a connecting angle area formed in advance;
s2-6: and (3) designing a whole perfusion system: spiral pipe air suction is arranged at the outer side of a connecting angle area formed in advance, after the other areas are paved according to auxiliary materials of the whole drawing, a vacuum bag film is sealed, the vacuum bag film is paved according to the molded surface of a shell mold, if a gap exists between the vacuum bag film and the molded surface of the shell mold, the air pressure in the vacuum bag film is reduced, and then the vacuum is pumped again after readjustment;
s2-7: confirmation before glue injection: checking the vacuum degree of the vacuum bag film before injecting the glue, wherein the vacuum degree in the vacuum bag film needs to be extracted to be lower than 30mbar and starts to be checked, the reading change of a vacuum meter is less than or equal to 30mbar within 5 minutes, and determining whether the proportion, the temperature and the bubble density in the glue meet the requirements;
s2-8: and (3) glue injection: in the process of injecting the glue, controlling the flow rate according to the height of the actual liquid level until the glue is completely soaked, stopping injecting the glue, and starting a heating program;
s2-9: removing auxiliary materials: after solidification, removing auxiliary materials such as a vacuum bag film, a honeycomb duct, an injecting glue seat and the like, and marking the chord-wise bonding width.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely an embodiment of the present invention, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application day or before the priority date of the present invention, and can know all the prior art in the field, and have the capability of applying the conventional experimental means before the date, so that a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. A shell pouring process for forming a connecting angle in advance is characterized in that: the method comprises the following steps:
s1: the connecting angle is poured and molded in advance;
the step S1 specifically includes: s1-1: preparing a connection angle profile tool: the surface of the tool is cleaned, the surface of the tool is free from the phenomena of unevenness, bubbles, scratches and cracks, and the surface is coated with a release agent;
s1-2: and (3) arranging auxiliary materials on the lower surface: laying demolding cloth on the lower surface of the connecting angle profile tool, and placing a sealing adhesive tape;
s1-3: laying a connecting angle structure layer;
s1-4: upper surface auxiliary material arrangement: laying a demolding cloth on the upper surface of the connecting angle-shaped surface tool, and placing a composite net film according to the distance from the parting line;
s1-5: and (3) designing a whole perfusion system: arranging spiral pipe air suction at the topmost end of the connecting angle profile, arranging ohmic pipes at the bottom ends of two sides of the profile tool, laying other auxiliary materials according to drawing requirements, sealing a vacuum bag film after the whole auxiliary materials are laid, and laying the vacuum bag film according to the tool profile;
s1-6: confirmation before glue injection: checking the vacuum degree of the vacuum bag film before injecting glue, and determining whether the proportion, temperature and bubble density in the glue meet the requirements;
s1-7: and (3) glue injection: in the process of injecting the glue, controlling the flow rate according to the height of the actual liquid level until the glue is completely soaked, stopping injecting the glue, and starting a heating program;
s1-8: cutting and repairing: after solidification, removing the vacuum bag film, the honeycomb duct and the glue injection seat, marking the die joint, the axial cutting line and the chord cutting line, and finishing cutting operation;
s2: the connecting angle formed by pouring in advance in S1 is formed by pouring together with the shell;
the step S2 specifically includes: s2-1: preparing a shell mould: the surface of the mould is cleaned, so that the surface of the mould is clean, no phenomena of unevenness, bubbles, scratches and cracks are caused, the surface is coated with a release agent, and a sealing rubber strip is placed;
s2-2: and (3) arranging auxiliary materials on the lower surface: laying a demolding cloth on the lower surface of a mold, and placing a unidirectional breathable film on the air extraction surface of one layer of the mold;
s2-3: laying a shell structure layer: laying an outer skin, lifting points for reinforcement, transporting reinforcement, tip reinforcement, laying a rear edge prefabricated UD, placing Liang Mao, laying a sandwich material, and symmetrically arranging reinforcing glass fibers on the sandwich material;
s2-4: placing a connection angle formed in advance: placing a connecting angle according to the parting line, and laying the reinforced glass fiber of the SS surface shell with accurate axial section position;
s2-5: upper surface auxiliary material arrangement: laying a demolding cloth on the upper surface of the mold, and placing a composite net film according to the distance from the parting line, wherein the composite net film is not placed in a connecting angle area formed in advance;
s2-6: and (3) designing a whole perfusion system: spiral pipe air suction is arranged at the outer side of a connecting angle area formed in advance, after the other areas are paved according to auxiliary materials of the whole drawing, a vacuum bag film is sealed, and the vacuum bag film is paved according to the molded surface of a shell mold;
s2-7: confirmation before glue injection: checking the vacuum degree of the vacuum bag film before injecting glue, and determining whether the proportion, temperature and bubble density in the glue meet the requirements;
s2-8: and (3) glue injection: in the process of injecting the glue, controlling the flow rate according to the height of the actual liquid level until the glue is completely soaked, stopping injecting the glue, and starting a heating program;
s2-9: removing auxiliary materials: after solidification, the vacuum bag film, the honeycomb duct and the glue injecting seat are removed, and the chord-wise bonding width is marked.
2. The process for pouring a housing with a preformed connection angle according to claim 1, wherein: the step S2-4 further comprises the following steps: after the connection angle is placed, observing the laminating degree of the side surface, laying the reinforced glass fiber of the SS surface shell after the laminating degree meets the requirement, and if the laminating degree cannot meet the requirement, carrying out plasticity on the connection angle again.
3. The process for pouring a housing with a preformed connection angle according to claim 2, wherein: the step S2-6 further comprises the following steps: if a gap exists between the vacuum bag film and the molded surface of the shell mold, reducing the air pressure in the vacuum bag film, and vacuumizing again after readjusting.
4. A process for pouring a housing with advanced connection angle molding as claimed in claim 3, wherein: the step S2-7 of checking the vacuum degree of the vacuum bag film specifically comprises the following steps: the vacuum degree in the vacuum bag film needs to be extracted to be lower than 30mbar for starting detection, and the change of the vacuum meter reading is less than or equal to 30mbar within 5 minutes.
5. The process for pouring a housing with a preformed connection angle according to claim 1, wherein: and in the step S1-5, the ohmic tube is an ohmic tube with a backing plate or an ohmic tube without a backing plate is used, and a flow guide backing plate is paved below the ohmic tube.
6. The process for pouring a housing with a preformed connection angle according to claim 5, wherein: the step S1-5 further comprises the following steps: if a gap exists between the vacuum bag film and the tool profile, reducing the air pressure in the vacuum bag film, and vacuumizing again after readjusting.
7. The process for pouring a housing with a preformed connection angle according to claim 6, wherein: the step S1-6 of checking the vacuum degree of the vacuum bag film specifically comprises the following steps: the vacuum degree in the vacuum bag film needs to be extracted to be lower than 30mbar for starting detection, and the change of the vacuum meter reading is less than or equal to 30mbar within 5 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111510418.3A CN114193791B (en) | 2021-12-10 | 2021-12-10 | Shell pouring technology for advanced forming of connecting angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111510418.3A CN114193791B (en) | 2021-12-10 | 2021-12-10 | Shell pouring technology for advanced forming of connecting angle |
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| Publication Number | Publication Date |
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| CN114193791A CN114193791A (en) | 2022-03-18 |
| CN114193791B true CN114193791B (en) | 2024-03-29 |
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| CN114986934A (en) * | 2022-05-12 | 2022-09-02 | 吉林重通成飞新材料股份公司 | Wind power blade pouring method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044957A (en) * | 2017-11-06 | 2018-05-18 | 中材科技（酒泉）风电叶片有限公司 | Bonding angle is prefabricated and integral pouring and forming process |
| CN113386368A (en) * | 2021-05-31 | 2021-09-14 | 明阳智慧能源集团股份公司 | Blade forming method for preventing glass fibers on two sides of die-assembling seam of blade root of wind power blade from being layered |
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2021
- 2021-12-10 CN CN202111510418.3A patent/CN114193791B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044957A (en) * | 2017-11-06 | 2018-05-18 | 中材科技（酒泉）风电叶片有限公司 | Bonding angle is prefabricated and integral pouring and forming process |
| CN113386368A (en) * | 2021-05-31 | 2021-09-14 | 明阳智慧能源集团股份公司 | Blade forming method for preventing glass fibers on two sides of die-assembling seam of blade root of wind power blade from being layered |
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| Publication number | Publication date |
|---|---|
| CN114193791A (en) | 2022-03-18 |
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