CN105365143A - On-line foam forming method for composite material sandwich structure - Google Patents
On-line foam forming method for composite material sandwich structure Download PDFInfo
- Publication number
- CN105365143A CN105365143A CN201510804435.6A CN201510804435A CN105365143A CN 105365143 A CN105365143 A CN 105365143A CN 201510804435 A CN201510804435 A CN 201510804435A CN 105365143 A CN105365143 A CN 105365143A
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- CN
- China
- Prior art keywords
- board mold
- foaming
- inner panel
- gum outlet
- outside 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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- 239000006260 foam Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 238000005187 foaming Methods 0.000 claims abstract description 35
- 239000003292 glue Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000000465 moulding Methods 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000012948 isocyanate Substances 0.000 claims description 4
- 150000002513 isocyanates Chemical class 0.000 claims description 4
- 150000005846 sugar alcohols Polymers 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 208000020442 loss of weight Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006335 epoxy glue Polymers 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
Abstract
The invention relates to an on-line foam forming method for a composite material sandwich structure. The on-line foam forming method is characterized by comprising the steps that 1, an inner plate is formed through an inner plate mold, an outer plate is formed through an outer plate mold, and the inner plate mold or the outer plate mold is provided with a foaming glue inlet and a foaming glue outlet; 2, the inner plate mold and the outer plate mold are assembled, and a glue filling cavity is formed between the inner plate on the inner plate mold and the outer plate on the outer plate mold; and 3, a foaming material is poured into the glue filling cavity through the foaming glue inlet of the inner plate mold or the outer plate mold.
Description
Technical field
The present invention relates to a kind of online foam forming method of Composite Sandwich structure.
Background technology
Along with the raising of discharge standard and the pressure of energy-saving and emission-reduction increase day by day, domestic and international automobile making commercial city is focused on carrying out loss of weight to vehicle body.In the measure of numerous vehicle body loss of weight, specific strength and the high new material of specific modulus is adopted to be exactly an effective loss of weight measure.The application of composite ground not only significantly can reduce tare, greatly can also improve the security performance of automobile.At present, the composite that some non-main force support structures such as automobile engine cover, case cover mostly adopt is sandwich structure form, has high specific stiffness.
In prior art, the production technology of Composite Sandwich structure, the foam hard processed that many employings are ready-made, not only production efficiency is low, and be limited to size and the thickness of foam core sheet material, freely cannot design the Composite Sandwich structure of arbitrary shape, make troubles to production and processing.
Summary of the invention
Goal of the invention of the present invention is the online foam forming method providing a kind of Composite Sandwich structure, can realize online foaming, convenient production and processing.
Realize the technical scheme of the object of the invention:
An online foam forming method for Composite Sandwich structure, is characterized in that:
Step 1: by inner panel mould molding inner panel, by outside plate mould molding outside plate, interior board mold or outer board mold have and foam into Jiao Kou, foaming gum outlet;
Step 2: by interior board mold and outer board mold matched moulds, forms injecting glue cavity between the outside plate on the inner panel on interior board mold and outer board mold;
Step 3: enter Jiao Kou by the foaming on interior board mold or outer board mold, injecting frothing material in injecting glue cavity.
In step 1, the foaming on interior board mold or outer board mold is entered Jiao Kou, the shutoff of foaming gum outlet.
In step 3, foamed by board mold in shutoff and to open into Jiao Kou, foaming gum outlet, inner panel bores two through holes, the position of two through holes is foamed corresponding into Jiao Kou, the gum outlet that foams respectively with interior board mold; Or foamed by the outer board mold of shutoff and to open into Jiao Kou, foaming gum outlet, outside plate bores two through holes, the position of two through holes is foamed corresponding into Jiao Kou, the gum outlet that foams respectively with outer board mold.
In step 1, at the edge smearing structure glue of inner panel, outside plate, in step 2, by the structure glue of inner panel, outer plate edge, make between inner panel, outside plate bonding.
In step 3, the expanded material of injection is the resin compound be made up of isocyanates, polyalcohol.
In step 3, foaming gum outlet is in open mode.
The beneficial effect that the present invention has:
The present invention is respectively by inner panel mould molding inner panel, and by outside plate mould molding outside plate, interior board mold or outer board mold have and foam into Jiao Kou, foaming gum outlet; By interior board mold and outer board mold matched moulds, between the outside plate on the inner panel on interior board mold and outer board mold, form injecting glue cavity; Finally, Jiao Kou, foaming gum outlet is entered by the foaming on interior board mold or outer board mold, injecting frothing material in injecting glue cavity.Present invention achieves the online foaming of Composite Sandwich structure, do not need the rigid foam needing again to process fixed profile size in advance, the processing of Composite Sandwich structure is convenient, effectively improves working (machining) efficiency, can produce the Composite Sandwich structure of arbitrary shape.
Foaming on interior board mold or outer board mold, by inner panel mould molding inner panel, by outside plate mould molding outside plate step, is entered Jiao Kou, the shutoff of foaming gum outlet, prevents resin from revealing, facilitate processing and forming by the present invention.
During injecting frothing material of the present invention, foamed by board mold in shutoff and to open into Jiao Kou, foaming gum outlet, inner panel bores two through holes, the position of two through holes is foamed corresponding into Jiao Kou, the gum outlet that foams respectively with interior board mold; Or the outer board mold of shutoff is foamed into Jiao Kou, foaming gum outlet open, outside plate bores two through holes, the position of two through holes is foamed corresponding into Jiao Kou, the gum outlet that foams respectively with outer board mold, injecting frothing material is very convenient, the density of Composite Sandwich foam can be controlled artificially, effectively enhance productivity.
The present invention, at the edge smearing structure glue of inner panel, outside plate, by the structure glue of inner panel, outer plate edge, makes between inner panel, outside plate bonding, convenient formation injecting glue cavity.The expanded material that the present invention injects is the resin compound be made up of isocyanates, polyalcohol, has better foaming effect.
Accompanying drawing explanation
Fig. 1 is mold for forming outer plate structural representation of the present invention;
Fig. 2 is inner panel forming die structure schematic diagram of the present invention;
Fig. 3 is schematic diagram under matched moulds state of the present invention.
Detailed description of the invention
For the Composite Sandwich structure of automobile engine cover, the online foam forming method of Composite Sandwich structure of the present invention is described.
Step 1: as shown in Fig. 2, Fig. 1, by the shaping inner panel of interior board mold 1, by the shaping outside plate of outer board mold 2, interior board mold or outer board mold have and foam into Jiao Kou, foaming gum outlet, in the present embodiment, interior board mold 1 has and foams into glue mouth 3, foaming gum outlet 4.Shaping inner panel, outside plate adopt vacuum introducing technology or prepeg process, time shaping, the foaming on interior board mold are entered glue mouth 3, the shutoff of foaming gum outlet 4.Do not need shaping inner panel, the outside plate demoulding, directly at the edge smearing structure glue of inner panel, outside plate.Structure glue can be polyurethane adhesive or epoxy glue.
Step 2: as shown in Figure 3, by interior board mold 1 and the 2-in-1 mould of outer board mold, by the structure glue of inner panel, outer plate edge, makes between inner panel, outside plate bonding, makes to form injecting glue cavity 5 between inner panel and outside plate.
Step 3: board mold in shutoff 1 is foamed and to open into glue mouth 3, foaming gum outlet 4, inner panel bores two through holes, the position of two through holes is foamed corresponding into glue mouth 3, the gum outlet 4 that foams respectively with interior board mold; Glue mouth 3 is entered, injecting frothing material in injecting glue cavity by the foaming of interior board mold 1.The expanded material injected is the resin compound be made up of isocyanates, polyalcohol.Owing to having air in injecting glue cavity 5, after injecting glue, injecting glue cavity 5 inner air pressure can improve, and keeps foaming gum outlet 4 to be open mode in injecting glue process.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious realization of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all in protection scope of the present invention without to improve.
Claims (6)
1. an online foam forming method for Composite Sandwich structure, is characterized in that:
Step 1: by inner panel mould molding inner panel, by outside plate mould molding outside plate, interior board mold or outer board mold have and foam into Jiao Kou, foaming gum outlet;
Step 2: by interior board mold and outer board mold matched moulds, forms injecting glue cavity between the outside plate on the inner panel on interior board mold and outer board mold;
Step 3: enter Jiao Kou by the foaming on interior board mold or outer board mold, injecting frothing material in injecting glue cavity.
2. method according to claim 1, is characterized in that:
In step 1, the foaming on interior board mold or outer board mold is entered Jiao Kou, the shutoff of foaming gum outlet.
3. method according to claim 2, is characterized in that:
In step 3, foamed by board mold in shutoff and to open into Jiao Kou, foaming gum outlet, inner panel bores two through holes, the position of two through holes is foamed corresponding into Jiao Kou, the gum outlet that foams respectively with interior board mold; Or foamed by the outer board mold of shutoff and to open into Jiao Kou, foaming gum outlet, outside plate bores two through holes, the position of two through holes is foamed corresponding into Jiao Kou, the gum outlet that foams respectively with outer board mold.
4. method according to claim 3, is characterized in that:
In step 1, at the edge smearing structure glue of inner panel, outside plate, in step 2, by the structure glue of inner panel, outer plate edge, make between inner panel, outside plate bonding.
5. method according to claim 4, is characterized in that:
In step 3, the expanded material of injection is the resin compound be made up of isocyanates, polyalcohol.
6. according to the method for claim 1-5 described in any one, it is characterized in that: in step 3, foaming gum outlet is in open mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510804435.6A CN105365143A (en) | 2015-11-20 | 2015-11-20 | On-line foam forming method for composite material sandwich structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510804435.6A CN105365143A (en) | 2015-11-20 | 2015-11-20 | On-line foam forming method for composite material sandwich structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105365143A true CN105365143A (en) | 2016-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510804435.6A Pending CN105365143A (en) | 2015-11-20 | 2015-11-20 | On-line foam forming method for composite material sandwich structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105365143A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729710A (en) * | 2016-03-16 | 2016-07-06 | 奇瑞汽车股份有限公司 | Preparation method of vehicle trunk cover with composite material |
| CN105751651A (en) * | 2016-04-18 | 2016-07-13 | 广东亚太新材料科技有限公司 | Production method of anti-layering foam sandwich composite plate |
| CN107956774A (en) * | 2017-12-12 | 2018-04-24 | 延锋彼欧汽车外饰系统有限公司 | The bonding tool and method of a kind of composite products |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7805268A (en) * | 1978-05-16 | 1979-11-20 | Dijk Bv Gebr Van | Composite sandwich panel for roof on wall construction - has bending strength to enable panel to be built in without structural support work |
| CN101417516A (en) * | 2008-02-29 | 2009-04-29 | 中国人民解放军国防科学技术大学 | Bearing/insulating/ablating all-in-one sandwich structure composite material and preparation method thereof |
| CN101630774A (en) * | 2009-08-07 | 2010-01-20 | 北京玻钢院复合材料有限公司 | Glass steel radar cover single element and forming method thereof |
| CN102248727A (en) * | 2011-05-27 | 2011-11-23 | 常州市华星新材料科技有限公司 | Polyurethane foam sandwich continuous fiber reinforcement composite plate molding process |
| CN102923270A (en) * | 2012-10-16 | 2013-02-13 | 东莞市杰乐盛世运动用品有限公司 | Surfboard and manufacturing process thereof |
| CN103009715A (en) * | 2012-12-12 | 2013-04-03 | 许爱华 | Improved production technology for polyurethane composite board |
-
2015
- 2015-11-20 CN CN201510804435.6A patent/CN105365143A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7805268A (en) * | 1978-05-16 | 1979-11-20 | Dijk Bv Gebr Van | Composite sandwich panel for roof on wall construction - has bending strength to enable panel to be built in without structural support work |
| CN101417516A (en) * | 2008-02-29 | 2009-04-29 | 中国人民解放军国防科学技术大学 | Bearing/insulating/ablating all-in-one sandwich structure composite material and preparation method thereof |
| CN101630774A (en) * | 2009-08-07 | 2010-01-20 | 北京玻钢院复合材料有限公司 | Glass steel radar cover single element and forming method thereof |
| CN102248727A (en) * | 2011-05-27 | 2011-11-23 | 常州市华星新材料科技有限公司 | Polyurethane foam sandwich continuous fiber reinforcement composite plate molding process |
| CN102923270A (en) * | 2012-10-16 | 2013-02-13 | 东莞市杰乐盛世运动用品有限公司 | Surfboard and manufacturing process thereof |
| CN103009715A (en) * | 2012-12-12 | 2013-04-03 | 许爱华 | Improved production technology for polyurethane composite board |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729710A (en) * | 2016-03-16 | 2016-07-06 | 奇瑞汽车股份有限公司 | Preparation method of vehicle trunk cover with composite material |
| CN105751651A (en) * | 2016-04-18 | 2016-07-13 | 广东亚太新材料科技有限公司 | Production method of anti-layering foam sandwich composite plate |
| CN107956774A (en) * | 2017-12-12 | 2018-04-24 | 延锋彼欧汽车外饰系统有限公司 | The bonding tool and method of a kind of composite products |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160302 |