CN113232205A - Carbon fiber transfer frame, mold thereof and integral forming method thereof - Google Patents
Carbon fiber transfer frame, mold thereof and integral forming method thereof Download PDFInfo
- Publication number
- CN113232205A CN113232205A CN202110556707.0A CN202110556707A CN113232205A CN 113232205 A CN113232205 A CN 113232205A CN 202110556707 A CN202110556707 A CN 202110556707A CN 113232205 A CN113232205 A CN 113232205A
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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
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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
- B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
-
- 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
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/442—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with mechanical ejector or drive means therefor
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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
- 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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/545—Perforating, cutting or machining during or after moulding
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/18—Construction of rack or frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3076—Aircrafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3456—Antennas, e.g. radomes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a carbon fiber transfer frame, a mold thereof and an integral forming method thereof, relates to the field of composite materials, and particularly relates to the carbon fiber transfer frame formed by the method, wherein reinforcing ribs, embedded parts and a transfer frame main body are integrally layered and formed by one-time gluing, secondary gluing, screwing and riveting are not needed, and the transfer frame main body is not damaged. The carbon fiber transfer frame is composed of an embedded part, reinforcing ribs and a carbon fiber transfer frame main body, the relative position requirement of the embedded part and the forming quality of the reinforcing ribs are guaranteed through a die, and the position precision and the flatness requirement of an interface are finally guaranteed through machining. Compared with the prior art, the invention has the remarkable advantages that: (1) the weight is light, and is reduced by more than 30% compared with the aluminum alloy transfer frame with the same structure; (2) the embedded part, the reinforcing rib and the switching frame main body are integrally paved and are subjected to one-time bonding curing molding, so that the subsequent assembly process is omitted, the damage to the switching frame main body is avoided, and the manufacturing time and the economic cost are saved.
Description
Technical Field
The invention relates to the field of composite materials, in particular to a carbon fiber transfer frame, a mold thereof and an integral forming method thereof.
Background
The adapter frame is used for connecting an antenna in airborne electronic equipment with an airplane platform and belongs to a main bearing component. In order to fully reduce the load of an airborne platform and meet the working requirements of an electronic equipment antenna, the adapter frame has the characteristics of light weight and high rigidity and strength, and the advantages of the carbon fiber composite material are required to be fully utilized and are not limited to the traditional metal material.
The transfer frame is generally of a circumferential closed type frame structure, the mold scheme is complex, the process design difficulty is high, the layering operation is complex due to the special structure of the transfer frame, and carbon fiber composite materials are not used in the transfer frame in a precedent. The invention provides the carbon fiber adapter frame with the embedded parts and the reinforcing ribs and the integral forming method thereof by optimizing the adapter frame mold scheme and the technological process, and the engineering application breakthrough of the carbon fiber composite material in the on-board electronic equipment adapter frame is realized.
Disclosure of Invention
The invention aims to provide a carbon fiber transfer frame with embedded parts and reinforcing ribs and an integral forming method thereof, which solve the problem of connection between an antenna and an airborne platform under the condition of meeting the requirements of weight and structural rigidity.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a carbon fiber switching frame mould, includes strengthening rib, built-in fitting and switching frame main part, switching frame main part is hoop closed type frame construction, and strengthening rib and built-in fitting are constituteed in switching frame main part.
As a further scheme of the invention: the wall thickness of the reinforcing rib is 2mm, and the wall thickness of the main body of the adapter frame is 4 mm.
As a further scheme of the invention: the reinforcing ribs and the adapter frame are made of carbon fiber composite materials, and the embedded parts are made of metal materials.
As a further scheme of the invention: the reinforcing ribs, the embedded parts and the adapter frame main body are integrally paved and formed in a one-time gluing mode, and are not glued, screwed and riveted for two times, so that the adapter frame main body is not damaged.
The utility model provides a mould of carbon fiber switching frame, includes mould core, mould bottom plate and drawing of patterns frame, be equipped with the mould core that is the annular and distributes through locating pin and screw fixed on the mould bottom plate, the assembly space of pre-buried piece and strengthening rib is reserved on the mould core hoop interval, mould core overall dimension is according to the inner chamber profile design of carbon fiber switching frame, the bottom of mould bottom plate is provided with the drawing of patterns frame, when the mould uses, through the mould core, the mould bottom plate is with the strengthening rib, the whole shop of laying of pre-buried piece and switching frame main part is spread and the shaping of once splicing, after the shaping is accomplished, it is ejecting with the switching frame through the drawing of patterns frame, obtain switching frame blank.
As a further scheme of the invention: the top surface of drawing of patterns frame evenly is fixed with a plurality of vertical guide bars, mould bottom plate slidable mounting is on the guide bar, and the top threaded connection that the top of guide bar is located the mould bottom plate has the anticreep nut, setting through the anticreep nut, avoid mould bottom plate and guide bar to break away from, the part cover that the guide bar is located between mould bottom plate and the drawing of patterns frame is equipped with the spring, play the supporting role to the mould bottom plate through the spring, the part that lies in on the mould bottom plate between the mould core has all seted up the through-hole, the position that corresponds the through-hole on the drawing of patterns frame all welded fastening has vertical liftout rod, and the diameter of liftout rod is less than the diameter of through-hole, when ejecting switching frame, push down the mould bottom plate, make the liftout rod pass the mould bottom plate through the through-hole, thereby jack up the blank piece of switching frame, and easy and convenient for operation, the drawing of patterns of switching frame blank piece is convenient for.
As a further scheme of the invention: the hoop both sides of strengthening rib are equipped with the silicon rubber mould, and in adapter frame solidification forming process, the silicon rubber mould produces the thermal energy in the hoop along with the rising of temperature, thereby because of the blockking of fixed mould core, the silicon rubber mould can only provide pressurization pressure to the strengthening rib direction inflation, has solved the upwards disappearance pressure of strengthening rib ring and has leaded to the poor problem of shaping quality.
An integral forming method of a carbon fiber transfer frame comprises the following specific processes:
the method comprises the following steps: firstly, laying 5 layers of carbon fiber prepreg on a mold core, and fixing the mold core on a mold bottom plate, wherein the preset thickness is 1 mm;
step two: laying carbon fiber prepreg on an embedded part, wherein the number of layers is 5, and the preset thickness is 1mm, then sequentially clamping the embedded part at the adjacent position of a mold core and fixing the embedded part on a mold bottom plate, so that the mold core and the embedded part form a closed annular structure;
step three: laying carbon fiber prepreg on the annular structure, wherein the number of layers is 15, the preset thickness is 3mm, after laying is finished, the whole die is conveyed into an autoclave, and curing molding is carried out according to preset temperature and pressure parameters;
step four: after the forming is finished, ejecting the adapter frame through a mould release frame to obtain an adapter frame blank;
step five: and (3) processing the appearance and the interface of the transfer frame blank by using a numerical control processing machine tool to finally obtain a transfer frame workpiece, so that the requirement of the product precision index is met.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a carbon fiber transfer frame, a mold thereof and an integral forming method thereof, wherein the integral forming of the carbon fiber transfer frame with an embedded part and a reinforcing rib is realized through parting assembly of a mold core and addition of a silicon rubber mold; the carbon fiber transfer frame is light in weight, and the weight of the carbon fiber transfer frame is reduced by more than 30% compared with that of an aluminum alloy transfer frame with the same structure; according to the adapter frame, the embedded parts, the reinforcing ribs and the adapter frame main body are integrally paved and are subjected to one-time bonding curing molding, so that the subsequent assembly process is omitted, the damage to the adapter frame main body is avoided, and the manufacturing time and the economic cost are saved.
Drawings
Fig. 1 is a schematic structural view of a carbon fiber transfer frame.
Fig. 2 is a schematic structural diagram of a mold for a carbon fiber transfer frame.
Fig. 3 is a schematic structural diagram of a releasing frame in a carbon fiber transfer frame.
Fig. 4 is a schematic view of the assembly of a silicone rubber mold in a carbon fiber adapter frame.
As shown in the figure: the anti-dropping die comprises a reinforcing rib 1, an embedded part 2, a switching frame main body 3, a die core 4, a die bottom plate 5, a demolding frame 6, a silicon rubber die 7, a spring 8, an ejector rod 9, an anti-dropping nut 10, a guide rod 11 and a through hole 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, in an embodiment of the present invention, a carbon fiber adapter frame includes a stiffener 1, an embedded part 2, and an adapter frame main body 3, where the adapter frame main body 3 is a circumferential closed frame structure, the stiffener 1 and the embedded part 2 are formed in the adapter frame main body 3, a wall thickness of the stiffener 1 is 2mm, and a wall thickness of the adapter frame main body 3 is 4 mm.
The reinforcing rib 1 and the adapter frame main body 3 are made of carbon fiber composite materials, and the embedded part 2 is made of metal materials.
The reinforcing ribs 1, the embedded parts 2 and the adapter frame main body 3 are integrally paved and formed in a one-time gluing mode, and are not glued, screwed and riveted for two times, so that the adapter frame main body is not damaged.
The utility model provides a mould of carbon fiber switching frame, includes mould core 4, mould bottom plate 5 and drawing of patterns frame 6, be equipped with the mould core 4 that is the annular and distributes through locating pin and screw fixed on the mould bottom plate 5, the assembly space of pre-buried piece 2 and strengthening rib 1 is reserved to 4 hoop intervals on the mould core, 4 overall dimension of mould core are according to the inner chamber profile design of carbon fiber switching frame, the bottom of mould bottom plate 5 is provided with drawing of patterns frame 6, when the mould uses, through mould core 4, mould bottom plate 5 is with strengthening rib 1, the whole layer of spreading of pre-buried piece 2 and switching frame main part 3 is spliced the shaping once, after the shaping is accomplished, it is ejecting with the switching frame through drawing of patterns frame 6, obtain switching frame blank.
The top surface of the demolding frame 6 is uniformly fixed with a plurality of vertical guide rods 11, the mold base plate 5 is slidably mounted on the guide rods 11, the top ends of the guide rods 11 are positioned above the mold base plate 5 and are in threaded connection with anti-falling nuts 10, the separation of the mold base plate 5 and the guide rods 11 is avoided through the arrangement of the anti-falling nuts 10, a spring 8 is sleeved on a part, positioned between the mold base plate 5 and the demolding frame 6, of the guide rods 11, the mold base plate 5 is supported through the spring 8, through holes 12 are formed in parts, positioned between mold cores 4, of the mold base plate 5, vertical ejection rods 9 are welded and fixed at positions, corresponding to the through holes 12, on the demolding frame 6, the diameter of each ejection rod 9 is smaller than that of the through hole 12, when the transfer frame is ejected, the mold base plate 5 is pressed downwards, the ejection rods 9 penetrate through the mold base plate 5 through the through holes 12, and accordingly blank pieces of the transfer frame are ejected, the operation is simple and convenient, and the demoulding of the transfer frame blank is convenient.
The hoop both sides of strengthening rib 1 are equipped with silicon rubber mould 7, and in adapter frame solidification forming process, silicon rubber mould 7 produces the thermal energy in the hoop along with the rising of temperature, thereby because of the blockking of fixed mould core 4, silicon rubber mould 7 can only provide pressurization pressure to the 1 direction inflation of strengthening rib, has solved the problem that the loss pressure leads to the shaping quality poor in strengthening rib 1 hoop.
An integral forming method of a carbon fiber transfer frame comprises the following specific processes:
the method comprises the following steps: firstly, laying 5 layers of carbon fiber prepreg on a mold core 4, and fixing the mold core 4 on a mold bottom plate 5, wherein the preset thickness is 1 mm;
step two: laying carbon fiber prepreg on an embedded part 2, wherein the number of layers is 5, and the preset thickness is 1mm, then sequentially clamping the embedded part 2 at the adjacent position of a mold core 4 and fixing the embedded part on a mold bottom plate 5, so that the mold core 4 and the embedded part 2 form a closed annular structure;
step three: laying carbon fiber prepreg on the annular structure, wherein the number of layers is 15, the preset thickness is 3mm, after laying is finished, the whole die is conveyed into an autoclave, and curing molding is carried out according to preset temperature and pressure parameters;
step four: after the forming is finished, the adapter frame is ejected out through the demolding frame 6, and a adapter frame blank is obtained;
step five: and (3) processing the appearance and the interface of the transfer frame blank by using a numerical control processing machine tool to finally obtain a transfer frame workpiece, so that the requirement of the product precision index is met.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a carbon fiber switching frame mould, includes strengthening rib (1), built-in fitting (2) and switching frame main part (3), its characterized in that, switching frame main part (3) are hoop closed type frame construction, and strengthening rib (1) and built-in fitting (2) are constituteed in switching frame main part (3).
2. The carbon fiber adapter frame according to claim 1, wherein the wall thickness of the reinforcing rib (1) is 2mm, and the wall thickness of the adapter frame body (3) is 4 mm.
3. The carbon fiber adapter frame according to claim 1, wherein the material of the reinforcing rib (1) and the adapter frame main body (3) is carbon fiber composite material, and the material of the embedded part (2) is metal material.
4. The carbon fiber adapter frame according to claim 1, wherein the reinforcing ribs (1) and the embedded parts (2) are integrally layered and formed with the adapter frame body (3) by one-step gluing.
5. The utility model provides a mould of carbon fiber transfer frame, its characterized in that, includes mould core (4), mould bottom plate (5) and drawing of patterns frame (6), be equipped with mould core (4) that are the annular distribution through locating pin and screw fixed on mould bottom plate (5), reserve the assembly space of built-in fitting (2) and strengthening rib (1) on mould core (4) hoop interval, mould core (4) overall dimension is provided with drawing of patterns frame (6) according to the inner chamber profile design of carbon fiber transfer frame, the bottom of mould bottom plate (5).
6. The mold for the carbon fiber transfer frame according to claim 5, wherein a plurality of vertical guide rods (11) are uniformly fixed on the top surface of the demolding frame (6), the mold base plate (5) is slidably mounted on the guide rods (11), anti-falling nuts (10) are in threaded connection with the top ends of the guide rods (11) above the mold base plate (5), springs (8) are sleeved on the parts, located between the mold base plate (5) and the demolding frame (6), of the guide rods (11), through holes (12) are formed in the parts, located between the mold cores (4), of the mold base plate (5), vertical ejection rods (9) are welded and fixed on the demolding frame (6) corresponding to the through holes (12), and the diameters of the ejection rods (9) are smaller than the diameters of the through holes (12).
7. The carbon fiber transfer frame mold according to claim 5, wherein the reinforcing rib (1) is fitted with silicone rubber molds (7) at both circumferential sides.
8. The integral forming method of the carbon fiber transfer frame is characterized by comprising the following specific processes:
the method comprises the following steps: firstly, laying 5 layers of carbon fiber prepreg on a mold core (4), and fixing the mold core (4) on a mold bottom plate (5), wherein the preset thickness is 1 mm;
step two: laying carbon fiber prepreg on an embedded part (2), laying 5 layers of carbon fiber prepreg, and presetting the thickness of 1mm, then sequentially clamping the embedded part (2) at the adjacent position of a mold core (4) and fixing the embedded part on a mold bottom plate (5), so that the mold core (4) and the embedded part (2) form a closed annular structure;
step three: laying carbon fiber prepreg on the annular structure, wherein the number of layers is 15, the preset thickness is 3mm, after laying is finished, the whole die is conveyed into an autoclave, and curing molding is carried out according to preset temperature and pressure parameters;
step four: after the forming is finished, the adapter frame is ejected out through a mould release frame (6) to obtain an adapter frame blank;
step five: and (3) processing the appearance and the interface of the transfer frame blank by using a numerical control processing machine tool to finally obtain a transfer frame workpiece, so that the requirement of the product precision index is met.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110556707.0A CN113232205B (en) | 2021-05-21 | 2021-05-21 | Carbon fiber transfer frame die and integral forming method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110556707.0A CN113232205B (en) | 2021-05-21 | 2021-05-21 | Carbon fiber transfer frame die and integral forming method thereof |
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| Publication Number | Publication Date |
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| CN113232205A true CN113232205A (en) | 2021-08-10 |
| CN113232205B CN113232205B (en) | 2023-07-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114415447A (en) * | 2022-01-27 | 2022-04-29 | 北京航空航天大学 | Large-scale space expandable film hood based on composite material large storage ratio superelastic structure |
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| CN109435271A (en) * | 2018-09-20 | 2019-03-08 | 上海复合材料科技有限公司 | Forming method suitable for laser satellite radar frame primary load bearing framework |
| CN110370676A (en) * | 2019-07-11 | 2019-10-25 | 航天海鹰(镇江)特种材料有限公司 | A kind of method that the soft tooling realization L-type reinforcing rib of high intensity answers material product co-curing with c-type mount structure |
| CN110394997A (en) * | 2019-07-31 | 2019-11-01 | 南京航空航天大学 | A kind of ring frame composite product piddler equipment and working method |
| CN212838106U (en) * | 2020-05-29 | 2021-03-30 | 浙江理工大学 | Solid rocket engine shell composite material joint |
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2021
- 2021-05-21 CN CN202110556707.0A patent/CN113232205B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435271A (en) * | 2018-09-20 | 2019-03-08 | 上海复合材料科技有限公司 | Forming method suitable for laser satellite radar frame primary load bearing framework |
| CN110370676A (en) * | 2019-07-11 | 2019-10-25 | 航天海鹰(镇江)特种材料有限公司 | A kind of method that the soft tooling realization L-type reinforcing rib of high intensity answers material product co-curing with c-type mount structure |
| CN110394997A (en) * | 2019-07-31 | 2019-11-01 | 南京航空航天大学 | A kind of ring frame composite product piddler equipment and working method |
| CN212838106U (en) * | 2020-05-29 | 2021-03-30 | 浙江理工大学 | Solid rocket engine shell composite material joint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114415447A (en) * | 2022-01-27 | 2022-04-29 | 北京航空航天大学 | Large-scale space expandable film hood based on composite material large storage ratio superelastic structure |
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