CN105415700A - Application method for process base plate for curved surface - Google Patents
Application method for process base plate for curved surface Download PDFInfo
- Publication number
- CN105415700A CN105415700A CN201510860622.6A CN201510860622A CN105415700A CN 105415700 A CN105415700 A CN 105415700A CN 201510860622 A CN201510860622 A CN 201510860622A CN 105415700 A CN105415700 A CN 105415700A
- Authority
- CN
- China
- Prior art keywords
- honeycomb
- backing plate
- curved surface
- base plate
- lay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Abstract
The invention belongs to the composite manufacturing technology, and provides an application method for a process base plate for a curved surface. The application method comprises the steps that a forming mold the same as the curved surface of a product is overall brushed with a release agent; a honeycomb is subjected to blanking or numerical control blanking according to a honeycomb expanding sample plate; outer skin is laid above the molded surface of the forming mold; the honeycomb is laid above the outer skin; inner skin is laid above the honeycomb; an isolation material is laid above the inner skin, and the process base plate and the product need to be isolated through the isolation material; the process base plate is laid above the isolation material, the process base plate and the inner skin are consistent in appearance, and the size of the process base plate is larger than that of the inner skin; a vacuum bag is made above the process base plate in a pasted manner; and the honeycomb pasted with the vacuum bag is cured through a hot press tank or a curing furnace.
Description
Technical field
The invention belongs to manufacture technology of composite material, relate to a kind of technique backing plate using method for curved surface.
Background technology
Existing method, for adopting smithcraft backing plate, uses and is confined to but single-curvature face, and due to the coefficient of expansion of material different, easily produce defect, hyperbolicity face cannot be used for.
Summary of the invention
The technical problem to be solved in the present invention: provide a kind of technique backing plate using method for curved surface, can improve the quality of products, improves the qualification rate of product, avoids expansion glue diaphragm area depression defect to produce.
Technical scheme of the present invention: a kind of technique backing plate using method for curved surface, comprising:
Step 1, brush releasing agent in the shaping mould entirety identical with product curved surface;
Step 2, honeycomb launch model by honeycomb to carry out blanking or adopts CNC cutting, should be greater than model 2-3 honeybee lattice, should be greater than model 1-2 honeybee lattice along L to honeycomb along W to honeycomb;
Step 3, above shaping mould profile lay exterior skin;
Step 4, above exterior skin lay honeycomb;
Step 5, above honeycomb lay inside panel;
Step 6, above inside panel lay isolated material, need isolated material to isolate between technique backing plate and product;
Step 7, on release material square placement process backing plate, described technique backing plate is consistent with inside panel profile, and craftwork pad board size is greater than inside panel size;
Step 8, above technique backing plate, paste vacuum bag;
Step 9, be cured the honeycomb pasting vacuum bag by autoclave or curing oven, solidification vacuum is not less than 0.07Mpa, and during solidification, temperature rate is not more than 3 DEG C/min;
Step 10, cool to less than 60 DEG C.
Concrete, in solidification process, part and the area with stove test piece are less than or equal to 2m
2, at least place two thermocouples; Part area is more than 2m
2, at least place 1 thermocouple, until thermocouple quantity is maximum reach 15 at every square metre and the every part of other remainder.
Concrete, described technique backing plate is the composite technology backing plate adopting carbon fiber, glass fibre, Kafra fiber.
Beneficial effect of the present invention: in solidification process, inside panel is uneven, by the smooth quality of inside panel after operation backing plate, avoids expanding defect that is insufficient or too zone of swelling because of expansion glued membrane.
Detailed description of the invention
The invention provides a kind of technique backing plate using method for curved surface, comprising:
Step 1, brush releasing agent in the shaping mould entirety identical with product curved surface;
Step 2, honeycomb launch model by honeycomb to carry out blanking or adopts CNC cutting, should be greater than model 2-3 honeybee lattice, should be greater than model 1-2 honeybee lattice along L to honeycomb along W to honeycomb;
Step 3, above shaping mould profile lay exterior skin;
Step 4, above exterior skin lay honeycomb;
Step 5, above honeycomb lay inside panel;
Step 6, above inside panel lay isolated material, need isolated material to isolate between technique backing plate and product;
Step 7, on release material square placement process backing plate, described technique backing plate is consistent with inside panel profile, and craftwork pad board size is greater than inside panel size;
Step 8, above technique backing plate, paste vacuum bag;
Step 9, be cured the honeycomb pasting vacuum bag by autoclave or curing oven, solidification vacuum is not less than 0.07Mpa, and during solidification, temperature rate is not more than 3 DEG C/min;
Step 10, cool to less than 60 DEG C.
Concrete, in solidification process, part and the area with stove test piece are less than or equal to 2m
2, at least place two thermocouples; Part area is more than 2m
2, at least place 1 thermocouple, until thermocouple quantity is maximum reach 15 at every square metre and the every part of other remainder.
Concrete, described technique backing plate is the composite technology backing plate adopting carbon fiber, glass fibre, Kafra fiber.
Below by embodiment, the present invention will be further described.
Embodiment
Method of the present invention is: shaping mould brush releasing agent → honeycomb blanking → lay exterior skin → lay honeycomb → lay inside panel → paste vacuum bag, simultaneously placement process backing plate → autoclave or the curing oven solidification → demoulding → finishing.The method is applicable to the honeycomb moulding technique backing plate of any curved surface, plane.
The first step: brush releasing agent on shaping mould, shaping mould has one deck releasing agent, fairing, be beneficial to the demoulding
Second step: honeycomb launches model by honeycomb and carries out blanking, should 2-3 honeybee lattice greatly along W to honeycomb, should 1-2 honeybee lattice greatly along L to honeycomb, and NOMEX honeycomb is along its decrement difference of different directions, and honeycomb answers single-curvature and deployable.Or honeycomb preformed is good.
3rd step: lay exterior skin
Points for attention: paving must paste mould, not have bubble
4th step: lay honeycomb
Attention: cell-site, must fit with covering simultaneously
5th step: lay inside panel
Points for attention: paving must paste mould, not have bubble
6th step: paste vacuum bag
Attention: need isolated material to isolate between technique backing plate and product, technique backing plate prepares, consistent with inner surface profile, and craftwork pad board size is greater than product size, to avoid causing the generation of impression defect on product.
Do not wish to occur vacuum bag gauffer, should remove as far as possible.For preventing because gauffer, parcel air or space etc. cause rejection, vacuum bag beaten by part, puts into before autoclave or curing oven solidify, and should remain to be connected with vacuum source.
7th step: autoclave or curing oven solidification, notes thermocouple placement location and quantity
The quantity of the thermocouple used
Part and be less than or equal to 2m2 with the area of stove test piece, at least should place two thermocouples.Part area, more than 2m2, at least places 1 thermocouple at the remainder of every square metre or other, until thermocouple quantity is maximum reach 15.
The distribution of thermocouple should be even, and object is to understand maximum temperature and minimum temperature in part., the position of thermocouple should be marked in frock, between the layer of cloth that thermocouple should be placed on part balance.
In order to prevent thermocouple from moving in the curing process, be fixed with high temperature gummed tape.
Before curing operation, check each thermocouple electrical property.
Cure parameter: vacuum pressure is not less than 0.07Mpa.Attention: temperature rate, not higher than 3 DEG C/min, is conducive to product homogeneous temperature in solidification, avoids deformation of products.
8th step: the demoulding
Lower than less than 60 DEG C, avoid deformation of products.
9th step: finishing
Remove unnecessary resin.
Claims (3)
1., for a technique backing plate using method for curved surface, it is characterized in that, comprising:
Step 1, brush releasing agent in the shaping mould entirety identical with product curved surface;
Step 2, honeycomb launch model by honeycomb to carry out blanking or adopts CNC cutting, should be greater than model 2-3 honeybee lattice, should be greater than model 1-2 honeybee lattice along L to honeycomb along W to honeycomb;
Step 3, above shaping mould profile lay exterior skin;
Step 4, above exterior skin lay honeycomb;
Step 5, above honeycomb lay inside panel;
Step 6, above inside panel lay isolated material, need isolated material to isolate between technique backing plate and product;
Step 7, on release material square placement process backing plate, described technique backing plate is consistent with inside panel profile, and craftwork pad board size is greater than inside panel size;
Step 8, above technique backing plate, paste vacuum bag;
Step 9, be cured the honeycomb pasting vacuum bag by autoclave or curing oven, solidification vacuum is not less than 0.07Mpa, and during solidification, temperature rate is not more than 3 DEG C/min;
Step 10, cool to less than 60 DEG C.
2. a kind of technique backing plate using method for curved surface as claimed in claim 1, it is characterized in that, in solidification process, part and the area with stove test piece are less than or equal to 2m
2, at least place two thermocouples; Part area is more than 2m
2, at least place 1 thermocouple, until thermocouple quantity is maximum reach 15 at every square metre and the every part of other remainder.
3. a kind of technique backing plate using method for curved surface as claimed in claim 1, is characterized in that,
Described technique backing plate is the composite technology backing plate adopting carbon fiber, glass fibre, Kafra fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510860622.6A CN105415700A (en) | 2015-11-30 | 2015-11-30 | Application method for process base plate for curved surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510860622.6A CN105415700A (en) | 2015-11-30 | 2015-11-30 | Application method for process base plate for curved surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105415700A true CN105415700A (en) | 2016-03-23 |
Family
ID=55494444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510860622.6A Pending CN105415700A (en) | 2015-11-30 | 2015-11-30 | Application method for process base plate for curved surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105415700A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806691A (en) * | 2016-04-01 | 2016-07-27 | 哈尔滨飞机工业集团有限责任公司 | Test piece bonding tool |
| CN105817914A (en) * | 2016-04-01 | 2016-08-03 | 中航飞机股份有限公司西安飞机分公司 | Auxiliary clamping method for NOMEX honeycomb numerical control machining |
| CN111421856A (en) * | 2020-03-30 | 2020-07-17 | 成都飞机工业（集团）有限责任公司 | Flexible hole-making sample plate with profile and manufacturing and using methods thereof |
| CN111452395A (en) * | 2020-03-26 | 2020-07-28 | 中车青岛四方机车车辆股份有限公司 | Curved surface composite material connecting structure, forming method and railway vehicle |
| CN111706585A (en) * | 2020-05-15 | 2020-09-25 | 成都飞机工业（集团）有限责任公司 | Reverse gluing method for sheet aluminum alloy basin-shaped part |
| CN114103168A (en) * | 2021-11-19 | 2022-03-01 | 哈尔滨工业大学 | Die for preparing composite material curved surface honeycomb structural member and preparation method of structural member |
| CN114311720A (en) * | 2021-12-03 | 2022-04-12 | 昌河飞机工业（集团）有限责任公司 | Process method for processing large-curvature over-stretched honeycomb for U-shaped fairing parts |
| CN114379121A (en) * | 2021-11-24 | 2022-04-22 | 中国南方航空股份有限公司 | Engine reverse thrust sliding door inner cylinder front honeycomb sandwich structure repair process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101422964A (en) * | 2008-12-18 | 2009-05-06 | 中国航空工业第一集团公司北京航空材料研究院 | Forming method of composite material of ultra-large size special honeycomb structure |
| CN103042697A (en) * | 2012-12-31 | 2013-04-17 | 北京玻钢院复合材料有限公司 | Integral forming process of carbon fiber antenna reflecting surface |
| CN104428127A (en) * | 2012-05-29 | 2015-03-18 | 空中客车运营简化股份公司 | Self-stiffened composite panel and method of producing same |
-
2015
- 2015-11-30 CN CN201510860622.6A patent/CN105415700A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101422964A (en) * | 2008-12-18 | 2009-05-06 | 中国航空工业第一集团公司北京航空材料研究院 | Forming method of composite material of ultra-large size special honeycomb structure |
| CN104428127A (en) * | 2012-05-29 | 2015-03-18 | 空中客车运营简化股份公司 | Self-stiffened composite panel and method of producing same |
| CN103042697A (en) * | 2012-12-31 | 2013-04-17 | 北京玻钢院复合材料有限公司 | Integral forming process of carbon fiber antenna reflecting surface |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806691A (en) * | 2016-04-01 | 2016-07-27 | 哈尔滨飞机工业集团有限责任公司 | Test piece bonding tool |
| CN105817914A (en) * | 2016-04-01 | 2016-08-03 | 中航飞机股份有限公司西安飞机分公司 | Auxiliary clamping method for NOMEX honeycomb numerical control machining |
| CN111452395A (en) * | 2020-03-26 | 2020-07-28 | 中车青岛四方机车车辆股份有限公司 | Curved surface composite material connecting structure, forming method and railway vehicle |
| CN111452395B (en) * | 2020-03-26 | 2021-11-12 | 中车青岛四方机车车辆股份有限公司 | Curved surface composite material connecting structure, forming method and railway vehicle |
| CN111421856A (en) * | 2020-03-30 | 2020-07-17 | 成都飞机工业（集团）有限责任公司 | Flexible hole-making sample plate with profile and manufacturing and using methods thereof |
| CN111706585A (en) * | 2020-05-15 | 2020-09-25 | 成都飞机工业（集团）有限责任公司 | Reverse gluing method for sheet aluminum alloy basin-shaped part |
| CN114103168A (en) * | 2021-11-19 | 2022-03-01 | 哈尔滨工业大学 | Die for preparing composite material curved surface honeycomb structural member and preparation method of structural member |
| CN114379121A (en) * | 2021-11-24 | 2022-04-22 | 中国南方航空股份有限公司 | Engine reverse thrust sliding door inner cylinder front honeycomb sandwich structure repair process |
| CN114379121B (en) * | 2021-11-24 | 2023-07-07 | 中国南方航空股份有限公司 | Repairing process for honeycomb sandwich structure at front part of inner cylinder of engine thrust-reversing translation door |
| CN114311720A (en) * | 2021-12-03 | 2022-04-12 | 昌河飞机工业（集团）有限责任公司 | Process method for processing large-curvature over-stretched honeycomb for U-shaped fairing parts |
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Application publication date: 20160323 |
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