CN110962370A - Demoulding method for boss positive film tool forming composite material part - Google Patents
Demoulding method for boss positive film tool forming composite material part Download PDFInfo
- Publication number
- CN110962370A CN110962370A CN201811139247.6A CN201811139247A CN110962370A CN 110962370 A CN110962370 A CN 110962370A CN 201811139247 A CN201811139247 A CN 201811139247A CN 110962370 A CN110962370 A CN 110962370A
- Authority
- CN
- China
- Prior art keywords
- composite
- composite material
- tool
- demoulding
- stripper plate
- 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.)
- Pending
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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
- 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
-
- 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
- B29C33/46—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 using fluid pressure
Abstract
The invention provides a demoulding method for a boss positive film tool forming composite material part, which comprises the following steps: pre-curing a composite stripper plate of the flat type; simultaneously, sticking demolding cloth on an area outside the allowance line of the part in advance; inserting a composite stripper plate between the part and the tooling to form a gap; blowing compressed air into the part system through a vacuum tube; and applying external force through the composite material stripping plate to strip the part. The composite stripper plate has the advantages that the composite stripper plate is light in weight, high in strength and convenient to use, and parts and tools cannot be damaged; meanwhile, mechanical force is replaced by high-speed compressed air, so that composite parts and tools can be quickly and effectively separated, and quick demolding is realized.
Description
Technical Field
The invention relates to the technical field of composite part manufacturing, in particular to a composite part demoulding method formed by using a tool.
Background
When a composite material part is formed by using a boss positive film tool, demolding tools which are generally used for demolding after solidification are divided into a metal type and a nylon type. And for metal class drawing of patterns instrument, its hardness is far more than the part, and the terminal surface is comparatively sharp moreover, damages part and frock easily during the drawing of patterns. For nylon demoulding tools, the end surfaces are dull, the hardness and the strength are not high after polishing, the nylon demoulding tools are easy to wear when in use, and the demoulding effect is not good. The composite material part is heated and pressed during curing and is tightly adsorbed on the molded surface of the boss of the tool, and the tool is demoulded only by depending on the mechanical force of a foreign object, so that the tool has poor structural effect.
Disclosure of Invention
The invention designs a composite part demoulding method formed by using a boss positive film tool, and aims to design a demoulding method for boss tool parts and solve the problem that the existing boss tool parts are difficult to demould.
The invention discloses a demoulding method of a boss positive film tool forming composite material part, which comprises the following steps:
step one, solidifying a composite material stripper plate of a flat plate class;
step two, sticking demolding cloth on an area outside the allowance line of the part in advance;
thirdly, tearing the demolding cloth after the composite material part is cured;
inserting the composite material stripper plate between the part and the tool;
step five, blowing compressed air into the part and the tool system;
and step six, applying external force through the composite material stripping plate to strip the part.
And the pressure of the compressed air in the step five is more than 7 MPa.
And fifthly, blowing compressed air into the device through a vacuum tube.
And the position of the composite material demoulding plate inserted between the part and the tool in the step four is the position of tearing the demoulding cloth.
Compared with the existing demoulding mode, the composite material demoulding plate has the advantages of light weight, high strength, convenience in use and no damage to parts and tools. Meanwhile, mechanical force is replaced by high-speed compressed air, so that composite parts and tools can be quickly and effectively separated, and quick demolding is realized.
Detailed Description
The following description of the present invention is provided to further illustrate and not limit the above-described implementations of the invention, but is not intended to limit the invention to the described implementations.
The invention discloses a demoulding method of a boss positive film tool forming composite material part, which specifically comprises the following steps:
a composite stripper plate of the flat type is pre-cured,
the demolding cloth is adhered to an area outside the allowance line of the part in advance, so that the area can be easily torn after the part is solidified to be used as an embedding area of the composite material demolding plate;
the composite material stripper plate is embedded between the part and the tool to form a gap;
aligning a vacuum nozzle connected with compressed air to the gap supported by the composite stripper plate;
blowing compressed air with pressure greater than 7MPa into a gap between the part and the tool;
and (3) prying the composite stripper plate, and applying an external force through the composite stripper plate to strip the part.
Claims (4)
1. A demoulding method for a boss positive film tool forming composite material part is characterized by comprising the following steps:
step one, solidifying a composite material stripper plate of a flat plate class;
step two, sticking demolding cloth on an area outside the allowance line of the part in advance;
thirdly, tearing the demolding cloth after the composite material part is cured;
inserting the composite material stripper plate between the part and the tool;
step five, blowing compressed air into the part and the tool system;
and step six, applying external force through the composite material stripping plate to strip the part.
2. The method for demolding a boss male die tool molded composite part according to claim 1, wherein the pressure of compressed air in the fifth step is greater than 7 MPa.
3. The method for demolding a boss male die tool molded composite part according to claim 1, wherein compressed air in the fifth step is blown in through a vacuum tube.
4. The method for demoulding the composite part formed by the boss male die tool according to claim 1, wherein the position where the composite demoulding plate is inserted between the part and the tool in the step four is a position where the demoulding cloth is torn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139247.6A CN110962370A (en) | 2018-09-28 | 2018-09-28 | Demoulding method for boss positive film tool forming composite material part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139247.6A CN110962370A (en) | 2018-09-28 | 2018-09-28 | Demoulding method for boss positive film tool forming composite material part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110962370A true CN110962370A (en) | 2020-04-07 |
Family
ID=70026731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811139247.6A Pending CN110962370A (en) | 2018-09-28 | 2018-09-28 | Demoulding method for boss positive film tool forming composite material part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110962370A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256771A (en) * | 2008-12-16 | 2011-11-23 | 空中客车营运有限公司 | Method, system and moulding tool for producing components made of fiber composite materials |
| US20120088056A1 (en) * | 2009-06-11 | 2012-04-12 | Saab Ab | Structural longitudinal composite joint for aircraft structure |
| CN103600501A (en) * | 2013-12-02 | 2014-02-26 | 太阳鸟游艇股份有限公司 | Demolding technology for fiber reinforced plastic ships |
| CN104149363A (en) * | 2014-07-04 | 2014-11-19 | 江苏海纬集团有限公司 | Process for manufacturing glass steel products |
| CN104669652A (en) * | 2015-03-06 | 2015-06-03 | 中国商用飞机有限责任公司 | Demoulding device for composite part of aircraft |
| CN108357035A (en) * | 2018-02-02 | 2018-08-03 | 广州市华英防腐设备有限公司 | A kind of spiral chute mold and its application method |
| US10786953B2 (en) * | 2016-04-06 | 2020-09-29 | Spirit AeroSystems (Europe) Limited | Method for eliminating wrinkles or bridging in composite laminate corners or bends |
-
2018
- 2018-09-28 CN CN201811139247.6A patent/CN110962370A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256771A (en) * | 2008-12-16 | 2011-11-23 | 空中客车营运有限公司 | Method, system and moulding tool for producing components made of fiber composite materials |
| US20120088056A1 (en) * | 2009-06-11 | 2012-04-12 | Saab Ab | Structural longitudinal composite joint for aircraft structure |
| CN103600501A (en) * | 2013-12-02 | 2014-02-26 | 太阳鸟游艇股份有限公司 | Demolding technology for fiber reinforced plastic ships |
| CN104149363A (en) * | 2014-07-04 | 2014-11-19 | 江苏海纬集团有限公司 | Process for manufacturing glass steel products |
| CN104669652A (en) * | 2015-03-06 | 2015-06-03 | 中国商用飞机有限责任公司 | Demoulding device for composite part of aircraft |
| US10786953B2 (en) * | 2016-04-06 | 2020-09-29 | Spirit AeroSystems (Europe) Limited | Method for eliminating wrinkles or bridging in composite laminate corners or bends |
| CN108357035A (en) * | 2018-02-02 | 2018-08-03 | 广州市华英防腐设备有限公司 | A kind of spiral chute mold and its application method |
Non-Patent Citations (1)
| Title |
|---|
| 沈开猷: "《不饱和聚酯树脂及其应用》", 31 January 2000, 化学工业出版社 * |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200407 |
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| RJ01 | Rejection of invention patent application after publication |