CN102303410A - Method for molding core and cavity of corner sealing element - Google Patents
Method for molding core and cavity of corner sealing element Download PDFInfo
- Publication number
- CN102303410A CN102303410A CN201110151135A CN201110151135A CN102303410A CN 102303410 A CN102303410 A CN 102303410A CN 201110151135 A CN201110151135 A CN 201110151135A CN 201110151135 A CN201110151135 A CN 201110151135A CN 102303410 A CN102303410 A CN 102303410A
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- prepreg
- corner seal
- half finished
- slice
- finished rubber
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention relates to a method for molding a core and a cavity of a corner sealing element. The method comprises the following steps of: (1) manufacturing a technical glass reinforced plastic member, grinding the cured technical member and removing glue residue; (2) laying a layer of de-molding cloth with single-sided glue on the internal surface of the technical glass reinforced plastic member and then placing into the cavity; (3) manufacturing a soft mould for the corner sealing member; (4) molding the parts. The parts produced by using the method for molding the core and the cavity of the corner sealing element have less folds and are uniform in thickness, and the molded surface and the size meet the technical requirements.
Description
Technical field
The present invention relates to a kind of corner seal matched molds method of forming, be used for composite corner seal cure process, belong to structure and field shaping technique.
Background technology
Composite corner seal profile curvature is big, and most advanced and sophisticated position is dark and narrow, and have sagging, complex structure.Technical conditions require female mould forming; And prepreg does not allow to cut across during laying; The comparison difficulty so the blank laying gets up; Blank can not fit to the root of die cavity during laying; Airfelt and vacuum bag all do not arrive the die cavity root during encapsulation, should add not upward pressure in the position, tip during curing, produce that the part thickness part is thick partially, buildup of resin and fold etc.; Cause the part profile defective, can not satisfy matching requirements.
Summary of the invention
The technical problem that the present invention will solve provides a kind of corner seal matched molds method of forming, and the part fold that this corner seal matched molds method of forming produces is few, and part thickness is even, profile and the requirement of size complex technique.
For overcoming the above problems, concrete technical scheme of the present invention is following: a kind of corner seal matched molds method of forming is characterized in that may further comprise the steps:
1) in formpiston, lay the glass fibre prepreg, thickness is 0.2～0.5mm, and this glass fibre prepreg is cured moulding under following process conditions, be frp process spare after the moulding, and the process conditions that will solidify polishes, except that removing photoresist stain;
2) inner surface of frp process spare is laid one deck one-side band glue release cloth, put in the former then;
3) half finished rubber that will be cut into slice is taped against in the frp process spare inner surface; Half finished rubber surface at slice re-lays glass cloth prepreg; Recharge the half finished rubber that is cut into slice in the glass cloth prepreg; Then half finished rubber is rammed close compacting; Encapsulation is at last advanced jar and under following process conditions, is carried out the vulcanization of rubber, and the sulfuration back forms the corner seal soft mode;
4) forming parts: laying multilayer carbon fiber prepreg on formpiston; The laying order of carbon fiber prepreg and drawing shop layer reversed in order; On formpiston, the intact part blank of paving is vacuumized compacting; Take off blank then and put into former; And fill in the corner seal soft mode that posts one-side band glue release cloth in blank inside; Carry out package curing, remove the corner seal soft mode after the curing after, part is promptly accomplished.This corner seal matched molds method of forming adopts said method; Make the corner seal soft mode in the blank in solidification process, transfer the pressure to the die cavity root; Thereby thickness and profile after part solidifies can both be guaranteed, thereby reduce the percent defective of product, enhance productivity simultaneously.
This corner seal matched molds method of forming adopts said method; Make the corner seal soft mode in the blank in solidification process, transfer the pressure to the die cavity root; Thereby thickness and profile after part solidifies all are guaranteed, thereby have reduced the percent defective of product, enhance productivity simultaneously.
Description of drawings
Fig. 1 is the outline drawing of the corner seal of required machine-shaping.
The specific embodiment
As shown in Figure 1, a kind of corner seal matched molds method of forming is characterized in that may further comprise the steps:
1) in formpiston, lay the glass fibre prepreg, thickness is 0.2～0.5mm, and this glass fibre prepreg is cured moulding under following process conditions, be frp process spare after the moulding, and the process conditions that will solidify polishes, except that removing photoresist stain;
1.1) vacuum-0.07MPa～-more than the 0.09MPa;
1.2) 1 ℃/min of heating rate～2 ℃/min, be warmed up to 180 ℃;
1.3) be incubated 120～150min down at 180+5 ℃;
1.4) naturally cool to below 60 ℃;
2) inner surface of frp process spare is laid one deck one-side band glue release cloth, put in the former then;
3) half finished rubber that will be cut into slice is taped against in the frp process spare inner surface; Half finished rubber surface at slice re-lays glass cloth prepreg; Recharge the half finished rubber that is cut into slice in the glass cloth prepreg; Then half finished rubber is rammed close compacting; Encapsulation is at last advanced jar and under following process conditions, is carried out the vulcanization of rubber; The sulfuration back forms the corner seal soft mode, and the purpose that wherein re-lays glass cloth prepreg on the half finished rubber surface of slice is to guarantee that the corner seal soft mode after the sulfuration has certain rigidity;
3.1) vulcanize overall process under the vacuum state ,-0.07MPa～-more than the 0.09MPa;
3.2) heating rate≤3 ℃/min, be warming up to 185 ± 5 ℃, be forced into 0.5 MPa, insulation 120min;
3.3) rate of temperature fall≤2.5 ℃/min, be cooled to 50 ℃, unload and extrude jar, and finished edge, and it is surperficial to coat soft mode with one-side band glue release cloth;
4) forming parts: laying multilayer carbon fiber prepreg on formpiston; The laying order of carbon fiber prepreg and drawing shop layer reversed in order; On formpiston, the intact part blank of paving is vacuumized compacting; Take off blank then and put into former; And fill in the corner seal soft mode that posts one-side band glue release cloth in blank inside; Carry out package curing, the process conditions and the process of curing are following:
4.1) whole process vacuumizes-0.07MPa～-0.09MPa;
4.2) pressurization 0.52MPa ± 0.03 MPa, when pressure reached 0.13 MPa, vacuum line led to atmosphere, began heating in the time of pressurization, reached the preceding part temperature of pressure and was no more than 55 ℃;
4.3) be 1.1～4.4 ℃/min with heating rate, be warmed up to 126.6 ℃, and be incubated 126.6 ℃, insulation 70min;
4.4) be 25～27 ℃/min with rate of temperature fall, be cooled to below 60 ℃, unload and extrude jar.
The process conditions of above-mentioned curing, sulfuration and forming and hardening are different and different according to the size of part and material.
Claims (1)
1. corner seal matched molds method of forming is characterized in that may further comprise the steps:
1) in formpiston, lay the glass fibre prepreg, thickness is 0.2～0.5mm, and this glass fibre prepreg is cured moulding, be frp process spare after the moulding, and the process conditions that will solidify polishes, except that removing photoresist stain;
2) inner surface of frp process spare is laid one deck one-side band glue release cloth, put in the former then;
3) half finished rubber that will be cut into slice is taped against in the frp process spare inner surface; Half finished rubber surface at slice re-lays glass cloth prepreg; Recharge the half finished rubber that is cut into slice in the glass cloth prepreg; Then half finished rubber is rammed close compacting; Encapsulation is at last advanced jar and is carried out the vulcanization of rubber, and the sulfuration back forms the corner seal soft mode;
4) forming parts: laying multilayer carbon fiber prepreg on formpiston; The laying order of carbon fiber prepreg and drawing shop layer reversed in order; On formpiston, the intact part blank of paving is vacuumized compacting; Take off blank then and put into former; And fill in the corner seal soft mode that posts one-side band glue release cloth in blank inside; Carry out package curing, remove the corner seal soft mode after the curing after, part is promptly intact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110151135A CN102303410A (en) | 2011-06-08 | 2011-06-08 | Method for molding core and cavity of corner sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110151135A CN102303410A (en) | 2011-06-08 | 2011-06-08 | Method for molding core and cavity of corner sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102303410A true CN102303410A (en) | 2012-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110151135A Pending CN102303410A (en) | 2011-06-08 | 2011-06-08 | Method for molding core and cavity of corner sealing element |
Country Status (1)
| Country | Link |
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| CN (1) | CN102303410A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441696A (en) * | 2014-09-22 | 2015-03-25 | 成都飞机工业（集团）有限责任公司 | Manufacture method of special-shaped composite material rib |
| CN104972673A (en) * | 2015-05-28 | 2015-10-14 | 江西洪都航空工业集团有限责任公司 | Paving process of ply drop variable-thickness structure composite product prepreg |
| CN105082568A (en) * | 2015-08-10 | 2015-11-25 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Liquid molding process of special-shaped composite structural part |
| CN106079176A (en) * | 2016-08-04 | 2016-11-09 | 江苏恒神股份有限公司 | A kind of soft mold for composite product and manufacture method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030122285A1 (en) * | 2000-06-23 | 2003-07-03 | Steve Crane | Method of resin transfer molding and components for use therewith |
| CN101391488A (en) * | 2008-08-22 | 2009-03-25 | 成都飞机工业（集团）有限责任公司 | Curing formation method for non-flat plate composite product and shaping mould |
| CN101554780A (en) * | 2009-03-30 | 2009-10-14 | 成都飞机工业（集团）有限责任公司 | Moulding method of cassette composite material finished piece |
-
2011
- 2011-06-08 CN CN201110151135A patent/CN102303410A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030122285A1 (en) * | 2000-06-23 | 2003-07-03 | Steve Crane | Method of resin transfer molding and components for use therewith |
| CN101391488A (en) * | 2008-08-22 | 2009-03-25 | 成都飞机工业（集团）有限责任公司 | Curing formation method for non-flat plate composite product and shaping mould |
| CN101554780A (en) * | 2009-03-30 | 2009-10-14 | 成都飞机工业（集团）有限责任公司 | Moulding method of cassette composite material finished piece |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441696A (en) * | 2014-09-22 | 2015-03-25 | 成都飞机工业（集团）有限责任公司 | Manufacture method of special-shaped composite material rib |
| CN104972673A (en) * | 2015-05-28 | 2015-10-14 | 江西洪都航空工业集团有限责任公司 | Paving process of ply drop variable-thickness structure composite product prepreg |
| CN105082568A (en) * | 2015-08-10 | 2015-11-25 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Liquid molding process of special-shaped composite structural part |
| CN106079176A (en) * | 2016-08-04 | 2016-11-09 | 江苏恒神股份有限公司 | A kind of soft mold for composite product and manufacture method thereof |
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Application publication date: 20120104 |