CN102166597A - Large composite material skinned die and manufacturing method thereof - Google Patents
Large composite material skinned die and manufacturing method thereof Download PDFInfo
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- CN102166597A CN102166597A CN 201010579405 CN201010579405A CN102166597A CN 102166597 A CN102166597 A CN 102166597A CN 201010579405 CN201010579405 CN 201010579405 CN 201010579405 A CN201010579405 A CN 201010579405A CN 102166597 A CN102166597 A CN 102166597A
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- epoxy resin
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- porcelain
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Abstract
The invention discloses a large composite material skinned die and a manufacturing method thereof. The die comprises a combined welding supporting base, a combined welding supporting frame, a glass steel layer and an epoxy resin layer which is stuck on the glass steel layer, wherein a layer of fluorinated polyurethane lusterless porcelain varnish is coated on the surface of the epoxy resin layer. Pits on the surface of epoxy resin are completely filled through the fluorinated polyurethane lusterless porcelain varnish, which can be tightly combined with the epoxy resin and has high permeability; the defect that micro air vents are formed on the surface of the epoxy resin of the large composite material skinned die is overcome substantially; and the surface quality and the air tightness reliability of the large composite material skinned die are obviously improved.
Description
Technical field
The present invention relates to multiple material covering of a kind of large-scale covering mould and manufacture method, particularly rail vehicle ultra-large type and manufacture method thereof.
Technical background
For alleviating the weight of high-speed transit railway carriage, prior art adopts composite to make skin, and huge skin is carried out piecemeal, and 2 meters of minimum dimensions, full-size reach 12 meters.For assembly precision quality and the good looking appearance quality that guarantees rail vehicle, every composite material parts precision and presentation quality require very high.All adopt base for supporting that is welded into rectangle shaped steel and the support frame mould that is combined into steel plate at present for the multiple material part forming of so large-scale precision.Because the composite material skin dimensioned area is big, slight even serious gas leakage often takes place in the cover large mold surplus in the of existing 20 when the formed composite material part, and an ancient unit of weight can not satisfy multiple material part and make required air-tightness requirement.In process hand-manipulated, can't all get rid of large tracts of land shop interlayer air owing to form the frp layer of composite material mould, have big and small bubble; Epoxy resin layer produces gas and heat when solidifying, form many miniature pits on inner and surface, bubble in the frp layer and the pit in the epoxy resin layer form countless minitype channels, these minitype channel parts can observe with the naked eye, but major part can't detect by an unaided eye, and once adopts air blast, magnifying glass observation in the real work, all can not find to eliminate these defectives, these defectives unavoidably can't thoroughly be got rid of again, become the difficult point of restriction rail vehicle project process.
Summary of the invention
The objective of the invention is the deficiency that exists at above-mentioned prior art, propose a kind of case hardness height, air-tightness are good, can eliminate the miniature pit gas hole defect of large-scale composite material covering mould large-scale composite material covering mould and manufacture method thereof.
Above-mentioned purpose of the present invention can reach by following measure, a kind of large-scale composite material covering mould, comprise, base for supporting, support frame, a frp layer and be bonded in epoxy resin layer on the frp layer, it is characterized in that, on the described epoxy resin laminar surface, be coated with the unglazed porcelain varnish of one deck fluoride polyurethane.
A kind of method of making above-mentioned large-scale composite material covering mould, it is characterized in that, at first become base for supporting with rectangle shaped steel Combination Welding, the support frame that becomes to have large-scale covering work profile with crisscross steel plate Combination Welding, and welding is positioned on the above-mentioned base for supporting, then frp layer is divided into several segmentations, be separately fixed at adhering with epoxy resin on the profile of described support frame, again epoxy resin layer is bonded on the frp layer, at described epoxy resin laminar surface, evenly spray the unglazed porcelain varnish of one deck fluoride polyurethane thin layer at least at last.
The present invention adopts and evenly to spray the unglazed porcelain varnish of fluoride polyurethane that one deck has excellent permeability at epoxy resin surface, has both kept simple for structure, the advantage cheaply of large mold, has significantly improved composite material mould surface quality and airtight reliability again.The present invention utilize can with the epoxy resin close adhesion, the unglazed porcelain varnish of fluoride polyurethane with excellent permeability, filled up the pit that epoxy resin surface exists fully, fundamentally thoroughly eliminated the miniature pit gas hole defect of large-scale composite material covering mould, strict guarantee the air-tightness of large-scale covering mould.Because the unglazed porcelain varnish of fluoride polyurethane is than epoxy resin hardness height, intensity height, die surface is difficult for being scratched, and can significantly improve die surface quality and die life, has saved surplus in the of 20 cover the large mold that goes out of use has been avoided the loss of hundreds thousand of units.Mold actual production checking surplus 20, mould structure of the present invention, the multiple material part production specifications of rail vehicle ultra-large type have been satisfied fully, thereby can improve mould greatly and make the airtight reliability of large-scale covering process and the surface strength of mould, thoroughly solved the miniature gas hole defect that epoxy resin surface exists, produced the multiple material part of high-quality with alap die cost.
Can think that the present invention not only can be used for rail vehicle supersized composite material covering mould, can be used for also that other is military, the multiple material component die of civil area ultra-large type or other similar large-scale composite material covering mould manufacturing.
Description of drawings
Fig. 1 is that the present invention is used for the multiple timber die organigram of rail vehicle ultra-large type.
Among the figure: 1 base for supporting, 2 support frames, 3 frp layers, 4 epoxy resin layers, 5 fluoride polyurethanes are unglazed porcelain layer of varnish, 6 composite material parts.
The specific embodiment
Consult Fig. 1.The multiple timber die of rail vehicle ultra-large type of the present invention is by the base for supporting 1 that forms with rectangle shaped steel Combination Welding, with crisscross steel plate Combination Welding form, and welding be positioned at the support frame 2 that composition has large-scale covering work profile on the base for supporting 1, frp layer 3 with skin-covering face, be bonded in the epoxy resin layer 4 on the frp layer 3 and be sprayed on the unglazed porcelain layer of varnish 5 of epoxy resin layer 4 lip-deep fluoride polyurethanes and form.The work profile of frp layer 3 is fixed on the above-mentioned support frame 2 by adhering with epoxy resin according to about 2 meters length segmentation.Fiberglass 3 segmentation joints are filled and led up connection with epoxy resin; Epoxy resin layer 4 is bonded on the frp layer 3, and has the profile required precision of multiple material part, and fluoride polyurethane is unglazed, and porcelain layer of varnish 5 repeatedly sprays and forms on epoxy resin layer 4 surfaces.Fluoride polyurethane is unglazed, and porcelain layer of varnish 5 thickness are about 0.2mm.
Empirical tests, behind employing the present invention, the large-scale multiple timber die air-tightness of cover is very good surplus in the of 20, and surface quality significantly improves, and successfully produces the multiple material skin part of the large-scale high-quality of rail vehicle.
Claims (5)
1. large-scale composite material covering mould, comprise that Combination Welding base for supporting, Combination Welding support frame, a frp layer and be bonded in epoxy resin layer on the frp layer is characterized in that, on the described epoxy resin laminar surface, be coated with the unglazed porcelain varnish of one deck fluoride polyurethane.
2. large-scale composite material covering mould as claimed in claim 1 is characterized in that described fluoride polyurethane is unglazed, and porcelain layer of varnish thickness is 0.2mm.
3. method of making described large-scale composite material covering mould, it is characterized in that, at first become base for supporting with rectangle shaped steel Combination Welding, the support frame that becomes to have large-scale covering work profile with crisscross steel plate Combination Welding, and welding is positioned on the above-mentioned base for supporting, then frp layer is divided into several segmentations, be separately fixed at adhering with epoxy resin on the profile of described support frame, again epoxy resin layer is bonded on the frp layer, at described epoxy resin laminar surface, evenly spray the unglazed porcelain varnish of one deck fluoride polyurethane thin layer at least at last.
4. large-scale composite material covering mould as claimed in claim 3 is characterized in that the work profile of described frp layer is according to 2 meters length segmentation.
5. large-scale composite material covering mould as claimed in claim 3 is characterized in that described fluoride polyurethane is unglazed, and the porcelain layer of varnish repeatedly sprays and forms on epoxy resin layer 4 surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010579405 CN102166597A (en) | 2010-12-07 | 2010-12-07 | Large composite material skinned die and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010579405 CN102166597A (en) | 2010-12-07 | 2010-12-07 | Large composite material skinned die and manufacturing method thereof |
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| CN102166597A true CN102166597A (en) | 2011-08-31 |
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| CN 201010579405 Pending CN102166597A (en) | 2010-12-07 | 2010-12-07 | Large composite material skinned die and manufacturing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426200A (en) * | 2011-11-04 | 2012-04-25 | 中国航空工业集团公司北京航空材料研究院 | Covering and sandwiched core gluing structure defect contrast sample |
| CN105903817A (en) * | 2016-06-24 | 2016-08-31 | 苏州华冲精密机械有限公司 | Aluminum profile curving mold |
| CN106112396A (en) * | 2016-07-01 | 2016-11-16 | 中航飞机股份有限公司西安飞机分公司 | A kind of multiple material shaping mould tire thin plate curved profile processing method |
| CN109631773A (en) * | 2018-11-22 | 2019-04-16 | 成都飞机工业（集团）有限责任公司 | A kind of pneumatic face Surface inspection method of composite material parts based on shaping mould |
| CN110394399A (en) * | 2019-06-14 | 2019-11-01 | 李�荣 | A kind of slab covering class component die |
Citations (5)
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| US5087405A (en) * | 1988-11-08 | 1992-02-11 | Coplas, Inc. | In mold overlay process for gel coated glass fiber reinforced laminates |
| CN1488455A (en) * | 2003-08-18 | 2004-04-14 | 西安交通大学 | Method of rapid manufacture of stamping die for arc spraying covering-piece for automobile |
| RO120693B1 (en) * | 2004-04-28 | 2006-06-30 | Martplast S.R.L. | Die and process for carrying out the same |
| CN101628481A (en) * | 2009-06-01 | 2010-01-20 | 中国航空工业集团公司北京航空制造工程研究所 | Forming mould of large-sized composite material-made reinforcing wall plate by vacuum assisted resin infusion |
| CN101774241A (en) * | 2010-01-20 | 2010-07-14 | 成都飞机工业（集团）有限责任公司 | Method for detecting and removing air tightness defect of epoxy resin mould |
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2010
- 2010-12-07 CN CN 201010579405 patent/CN102166597A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5087405A (en) * | 1988-11-08 | 1992-02-11 | Coplas, Inc. | In mold overlay process for gel coated glass fiber reinforced laminates |
| CN1488455A (en) * | 2003-08-18 | 2004-04-14 | 西安交通大学 | Method of rapid manufacture of stamping die for arc spraying covering-piece for automobile |
| RO120693B1 (en) * | 2004-04-28 | 2006-06-30 | Martplast S.R.L. | Die and process for carrying out the same |
| CN101628481A (en) * | 2009-06-01 | 2010-01-20 | 中国航空工业集团公司北京航空制造工程研究所 | Forming mould of large-sized composite material-made reinforcing wall plate by vacuum assisted resin infusion |
| CN101774241A (en) * | 2010-01-20 | 2010-07-14 | 成都飞机工业（集团）有限责任公司 | Method for detecting and removing air tightness defect of epoxy resin mould |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426200A (en) * | 2011-11-04 | 2012-04-25 | 中国航空工业集团公司北京航空材料研究院 | Covering and sandwiched core gluing structure defect contrast sample |
| CN102426200B (en) * | 2011-11-04 | 2014-05-14 | 中国航空工业集团公司北京航空材料研究院 | Covering and sandwiched core gluing structure defect contrast sample |
| CN105903817A (en) * | 2016-06-24 | 2016-08-31 | 苏州华冲精密机械有限公司 | Aluminum profile curving mold |
| CN106112396A (en) * | 2016-07-01 | 2016-11-16 | 中航飞机股份有限公司西安飞机分公司 | A kind of multiple material shaping mould tire thin plate curved profile processing method |
| CN106112396B (en) * | 2016-07-01 | 2018-05-29 | 中航飞机股份有限公司西安飞机分公司 | A kind of multiple material shaping mould tire thin plate curved profile processing method |
| CN109631773A (en) * | 2018-11-22 | 2019-04-16 | 成都飞机工业（集团）有限责任公司 | A kind of pneumatic face Surface inspection method of composite material parts based on shaping mould |
| CN110394399A (en) * | 2019-06-14 | 2019-11-01 | 李�荣 | A kind of slab covering class component die |
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Application publication date: 20110831 |