CN107471688A - A kind of method for reducing autoclave molding vacuum bag gas leakage - Google Patents
A kind of method for reducing autoclave molding vacuum bag gas leakage Download PDFInfo
- Publication number
- CN107471688A CN107471688A CN201710565368.6A CN201710565368A CN107471688A CN 107471688 A CN107471688 A CN 107471688A CN 201710565368 A CN201710565368 A CN 201710565368A CN 107471688 A CN107471688 A CN 107471688A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- gas leakage
- vacuum bag
- airfelt
- autoclave
- 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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
- B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
A kind of method for reducing autoclave molding vacuum bag gas leakage, comprises the following steps：Step 1：Integral vacuum mouth groove ± 45 ° are wrapped up with fritter airfelt and isolated；Step 2：Then airfelt that vacuum nozzle after parcel is solidified to part with tank to be entered is connected air guide；Step 3：After vacuum tube connects with the vacuum system of autoclave, the thermocouple in vacuum tube and part is passed through from the frock bottom of frame-type with thin wire；Step 4：High temperature gummed tape secondary seal will be used on vacuum bag sealing strip.This programme, technique is simple and convenient to operate, significant effect, solves the problems, such as the long-standing gas leakage in this area, has significant benefit.
Description
Technical field
The present invention relates to composite autoclave molding vacuum-bag process field, is specifically that a kind of reduction autoclave molding is true
The method of empty bag gas leakage.
Background technology
Composite autoclave molding is a kind of mature and stable technique, and the principal element for influenceing autoclave forming process has
The selection etc. of bag, cure parameter.It is important step during autoclave forming process that vacuum bag, which makes, at present autoclave molding
Autoclave vacuum system is connected using vacuum nozzle mostly, using directly contacting when vacuum nozzle connects with airfelt, because of vacuum
There is groove in bottom in mouth, easily cause bag breakage, vacuum is let out by vacuum bag inspiration vacuum nozzle groove in hot setting
Leakage, influences part quality.In addition under conditions of HTHP, sealing property declines to be also resulted in solidification process very putty bar
Reciprocal of duty cycle leaks, final to influence forming parts quality.
The content of the invention
The problem of existing for traditional scheme, the present invention provide a kind of side that can reduce autoclave molding vacuum bag gas leakage
Method.
The technical scheme that the present invention takes is a kind of method for reducing autoclave molding vacuum bag gas leakage, including following step
Suddenly：
Step 1：Integral vacuum mouth groove ± 45 ° are wrapped up with fritter airfelt and isolated；
Step 2：Then airfelt that vacuum nozzle after parcel is solidified to part with tank to be entered is connected air guide；
Step 3：After vacuum tube connects with the vacuum system of autoclave, with thin wire by the thermocouple in vacuum tube and part
Passed through from the frock bottom of frame-type；
Step 4：High temperature gummed tape secondary seal will be used on vacuum bag sealing strip.
Beneficial effect：This programme, technique is simple and convenient to operate, significant effect, solves the long-standing gas leakage in this area
The problem of, there is significant benefit.
Brief description of the drawings
Fig. 1 typical process flow charts；
Fig. 2 parts fix schematic diagram.
Embodiment
The present invention is described in further details with reference to specific embodiment and Figure of description.
Embodiment：Autoclave has vacuum bag, airfelt, barrier film, a releasing agent, part be placed in releasing agent and barrier film it
Between, vacuum bag is placed in frock, as shown in Figure 1.
Step 1：Integral vacuum mouth groove ± 45 ° are wrapped up with fritter airfelt and isolated；
Step 2：Then airfelt that vacuum nozzle after parcel is solidified to part with tank to be entered is connected air guide；
Step 3：After vacuum tube connects with the vacuum system of autoclave, with thin wire by the thermocouple in vacuum tube and part
Passed through from the frock bottom of frame-type, avoid vacuum tube in solidification process from being rocked in tank body, cause high temperature with vacuum bag friction
Under become fragile vacuum bag rupture gas leakage,
Step 4：High temperature gummed tape secondary seal will be used on vacuum bag sealing strip, avoid putty bar softening under high temperature from causing vacuum
Bag gas leakage, the vacuum of part is influenceed, the raised vacuum bag of son that will give a discount is fixed with high temperature gummed tape, avoids vacuum in solidification process
Bag rocks in tank body, and the vacuum bag for causing to become fragile under high temperature with vacuum bag friction ruptures gas leakage, as shown in Figure 2.
Claims (1)
- A kind of 1. method for reducing autoclave molding vacuum bag gas leakage, it is characterised in that：Comprise the following steps：Step 1：Integral vacuum mouth groove ± 45 ° are wrapped up with fritter airfelt and isolated；Step 2：Then airfelt that vacuum nozzle after parcel is solidified to part with tank to be entered is connected air guide；Step 3：After vacuum tube connects with the vacuum system of autoclave, with thin wire by the thermocouple in vacuum tube and part from frame The frock bottom of posture passes through；Step 4：High temperature gummed tape secondary seal will be used on vacuum bag sealing strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710565368.6A CN107471688A (en) | 2017-07-12 | 2017-07-12 | A kind of method for reducing autoclave molding vacuum bag gas leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710565368.6A CN107471688A (en) | 2017-07-12 | 2017-07-12 | A kind of method for reducing autoclave molding vacuum bag gas leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107471688A true CN107471688A (en) | 2017-12-15 |
Family
ID=60595621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710565368.6A Pending CN107471688A (en) | 2017-07-12 | 2017-07-12 | A kind of method for reducing autoclave molding vacuum bag gas leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107471688A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910176A (en) * | 2018-07-27 | 2018-11-30 | 上海嘉迪机械有限公司 | A kind of soft packaging bag detection device |
| CN108943762A (en) * | 2018-07-12 | 2018-12-07 | 安徽佳力奇碳纤维科技股份公司 | A kind of suction of composite molding zero glue thermocouple setting method |
| CN109097709A (en) * | 2018-07-31 | 2018-12-28 | 中南大学 | Large aluminum alloy component hot pressing can shaping vacuum bag encapsulating method |
| CN110411669A (en) * | 2019-07-22 | 2019-11-05 | 江苏亨睿碳纤维科技有限公司 | A kind of device that hot-press tank leaks hunting outside |
| CN111941882A (en) * | 2020-08-19 | 2020-11-17 | 成都航空职业技术学院 | Device for VARTM (vacuum vapor deposition) process forming and component preparation method |
| CN113681939A (en) * | 2021-07-30 | 2021-11-23 | 江西昌河航空工业有限公司 | Equivalent substitution method for composite material thermocouple |
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|---|---|---|---|---|
| CN101576195A (en) * | 2008-05-09 | 2009-11-11 | 中国石油天然气股份有限公司 | Construction method for repairing pipelines with defects by use of prepreg |
| CN202156039U (en) * | 2011-01-10 | 2012-03-07 | 江西昌河航空工业有限公司 | Vacuum bag for forming hollow tubular beams made of composite materials |
| CN102529108A (en) * | 2011-11-24 | 2012-07-04 | 成都飞机工业（集团）有限责任公司 | Overlaying manufacture method for composite material part |
| CN103057127A (en) * | 2012-12-19 | 2013-04-24 | 江西洪都航空工业集团有限责任公司 | Vacuumizing device for manufacturing composite material by vacuum bag/autoclave method |
| CN105965917A (en) * | 2016-06-20 | 2016-09-28 | 中国商用飞机有限责任公司 | Co-curing forming technological method for composite fuselage frame body with ribs added to two sides |
| CN106393747A (en) * | 2016-09-21 | 2017-02-15 | 中国商用飞机有限责任公司 | Process forming device for double-vacuum hot bonder |
| CN206106422U (en) * | 2016-06-29 | 2017-04-19 | 河南中机华远机械工程有限公司 | Novel vacuum bag shaping device |
| CN106696304A (en) * | 2016-11-23 | 2017-05-24 | 安徽佳力奇碳纤维科技股份公司 | Carbon fiber composite material vacuumizing device and vacuumizing method thereof |
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2017
- 2017-07-12 CN CN201710565368.6A patent/CN107471688A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101576195A (en) * | 2008-05-09 | 2009-11-11 | 中国石油天然气股份有限公司 | Construction method for repairing pipelines with defects by use of prepreg |
| CN202156039U (en) * | 2011-01-10 | 2012-03-07 | 江西昌河航空工业有限公司 | Vacuum bag for forming hollow tubular beams made of composite materials |
| CN102529108A (en) * | 2011-11-24 | 2012-07-04 | 成都飞机工业（集团）有限责任公司 | Overlaying manufacture method for composite material part |
| CN103057127A (en) * | 2012-12-19 | 2013-04-24 | 江西洪都航空工业集团有限责任公司 | Vacuumizing device for manufacturing composite material by vacuum bag/autoclave method |
| CN105965917A (en) * | 2016-06-20 | 2016-09-28 | 中国商用飞机有限责任公司 | Co-curing forming technological method for composite fuselage frame body with ribs added to two sides |
| CN206106422U (en) * | 2016-06-29 | 2017-04-19 | 河南中机华远机械工程有限公司 | Novel vacuum bag shaping device |
| CN106393747A (en) * | 2016-09-21 | 2017-02-15 | 中国商用飞机有限责任公司 | Process forming device for double-vacuum hot bonder |
| CN106696304A (en) * | 2016-11-23 | 2017-05-24 | 安徽佳力奇碳纤维科技股份公司 | Carbon fiber composite material vacuumizing device and vacuumizing method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108943762A (en) * | 2018-07-12 | 2018-12-07 | 安徽佳力奇碳纤维科技股份公司 | A kind of suction of composite molding zero glue thermocouple setting method |
| CN108910176A (en) * | 2018-07-27 | 2018-11-30 | 上海嘉迪机械有限公司 | A kind of soft packaging bag detection device |
| CN109097709A (en) * | 2018-07-31 | 2018-12-28 | 中南大学 | Large aluminum alloy component hot pressing can shaping vacuum bag encapsulating method |
| CN110411669A (en) * | 2019-07-22 | 2019-11-05 | 江苏亨睿碳纤维科技有限公司 | A kind of device that hot-press tank leaks hunting outside |
| CN110411669B (en) * | 2019-07-22 | 2024-05-31 | 江苏亨睿碳纤维科技有限公司 | Leakage detection device outside autoclave |
| CN111941882A (en) * | 2020-08-19 | 2020-11-17 | 成都航空职业技术学院 | Device for VARTM (vacuum vapor deposition) process forming and component preparation method |
| CN113681939A (en) * | 2021-07-30 | 2021-11-23 | 江西昌河航空工业有限公司 | Equivalent substitution method for composite material thermocouple |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20171215 |