CN105619836A - Method for integrally forming light automobile floor - Google Patents

Method for integrally forming light automobile floor Download PDF

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Publication number
CN105619836A
CN105619836A CN201410693050.2A CN201410693050A CN105619836A CN 105619836 A CN105619836 A CN 105619836A CN 201410693050 A CN201410693050 A CN 201410693050A CN 105619836 A CN105619836 A CN 105619836A
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CN
China
Prior art keywords
fabric
fiber
glass
floor panel
vacuum
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
Application number
CN201410693050.2A
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Chinese (zh)
Inventor
周利峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI YUEKE COMPOSITE CO Ltd
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SHANGHAI YUEKE COMPOSITE CO Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by SHANGHAI YUEKE COMPOSITE CO Ltd filed Critical SHANGHAI YUEKE COMPOSITE CO Ltd
Priority to CN201410693050.2A priority Critical patent/CN105619836A/en
Publication of CN105619836A publication Critical patent/CN105619836A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a method for integrally forming a light automobile floor. The method comprises the following steps: firstly, mold laying-up operation is carried out, wherein bottom layer glass fabric, a PET foam core sandwich, upper layer glass fabric, release cloth, an isolation film with holes, a PP punching plate, a flow guide net and a vacuum bag film are sequentially laid on the surface of a mold, one end of a winding pipe stretches into the interior of the vacuum bag film, the other end of the winding pipe is connected with an external vacuum pump, one end of a resin injecting pipe is connected to the flow guide net, and the other end of the resin injecting pipe is connected with an external resin tank; secondly, the vacuum pump is started to carry out vacuum pressure maintaining; and thirdly, thermosetting resin is poured from the resin tank to enter the interior of the bottom layer glass fabric, the interior of the PET foam core sandwich and the interior of the upper layer glass fabric, excess thermosetting resin is sucked out through the winding pipe, mold releasing is achieved after curing treatment, and the light automobile floor formed by the bottom layer glass fabric, the PET foam core sandwich, the upper layer glass fabric and the thermosetting resin poured into the bottom layer glass fabric, the PET foam core sandwich and the upper layer glass fabric is obtained. Compared with the prior art, the automobile floor obtained through the method is flat and attractive in surface, light, difficult to combust, dampproof, corrosion-resisting and good in weather resistance.

Description

The method of one-body molded lightweight automotive floor panel
Technical field
The present invention relates to a kind of forming method sheet material, a kind of method especially relating to one-body molded lightweight automotive floor panel.
Background technology
At present, including multiple automotive floor panel many employings plastic plate on electric bus floor, its poor heat resistance, yielding, warpage, mechanical property is single, and service life is short.
The method adopting priming by vacuum produces the existing report of sheet material, as Chinese patent CN103538266A discloses the vacuum infusion method of a kind of glass fibre reinforced plastic nacelle cover, including nine steps, (1) vacuum pump is selected, (2) on the glass layer of engine room cover, flow-guiding screen is laid, (3) winding pipe is laid around the mould periphery sides of engine room cover, (4) bleeding point is set on winding pipe, bleeding point is connected on vacuum pump by wired hose, (5) vacuum diversion layout is installed on flow-guiding screen, lay winding pipe, (6) flow-guiding screen arranges gum-injecting port, (7) vacuum bag film is laid, (8) start vacuum pump and carry out vacuum pressurize, (9) injected rubber hose is installed on gum-injecting port, then in order to perfusion resin in injected rubber hose, time is within 3 hours, and solidify at the temperature of 20 DEG C-30 DEG C, hardening time is 5-6 hour, solidify the rear demoulding. Chinese patent CN103350514A discloses a kind of laboratory two-sided flat reinforced plastic plate preparation technology of test, glass-fiber-fabric is laid at glass table face upper surface, glass-fiber-fabric is placed pressing plate with holes, the orifice region that has at pressing plate with holes places flow-guiding screen, flow-guiding screen is placed injecting glue pedestal, lay airfelt and cover on glass-fiber-fabric, winding pipe it is placed on glass table face and is covered by airfelt, one termination exhaust tube of winding pipe, lay vacuum diaphragm and by winding pipe, airfelt, glass-fiber-fabric, pressing plate with holes, flow-guiding screen and injecting glue pedestal cover, vacuum diaphragm edge sealing joint strip seals and is fixed on glass table face, another termination resin trap of the exhaust tube that one end is connected with winding pipe, resin trap is connected with vacuum pump by exhaust tube. two sections of patents are all prepare reinforced plastic plate above, owing to flooring material is different from reinforced plastic plate, and the performance requirement of flooring material are different from reinforced plastic plate, therefore the method grown place panel material of also few employing priming by vacuum at present.
Summary of the invention
The purpose of the present invention is contemplated to overcome the defect that above-mentioned prior art exists and a kind of method providing one-body molded lightweight automotive floor panel, and the automotive floor panel structure that the present invention obtains can design, and surfacing is attractive in appearance, warpage preventing, lightweight, difficult combustion, protection against the tide, anticorrosion, good weatherability.
The purpose of the present invention can be achieved through the following technical solutions:
The method of one-body molded lightweight automotive floor panel, comprises the following steps:
(1) mould laying: lay bottom glass-fiber-fabric, PET foam core, upper strata glass-fiber-fabric, release cloth, porous release film, PP perforated board, flow-guiding screen and vacuum bag film successively at die surface, vacuum bag film is connected with die sealing, bottom glass-fiber-fabric, PET foam core, upper strata glass-fiber-fabric, release cloth, porous release film, PP perforated board and flow-guiding screen are all covered by vacuum bag film, winding pipe one end puts in inside vacuum bag film, the other end is connected with external vacuum pump, injected rubber hose one end is connected on flow-guiding screen, and the other end is connected with outside glue tank;
(2) start vacuum pump and carry out vacuum pressurize;
(3) thermosetting resin is entered on earth inside layer glass-fiber-fabric, PET foam core and upper strata glass-fiber-fabric by perfusion in glue tank, unnecessary thermosetting resin passes through winding pipe sucking-off, the demoulding after cured process, obtains by bottom glass-fiber-fabric, PET foam core, upper strata glass-fiber-fabric and is poured in the lightweight automotive floor panel that the thermosetting resin of inside is formed.
Described thermosetting resin is the unsaturated polyester resin being added with volume fraction 2% mill base.
The edge of described bottom glass-fiber-fabric, PET foam core and upper strata glass-fiber-fabric is fixing to be connected.
Described release cloth be sized larger than bottom glass-fiber-fabric or upper strata glass-fiber-fabric.
Described flow-guiding screen is laid within bottom glass-fiber-fabric or glass-fiber-fabric edge, upper strata within the scope of 50mm.
Described winding pipe is positioned at one end distance bottom glass-fiber-fabric or glass-fiber-fabric edge, the upper strata at least 70mm of vacuum bag film.
When carrying out vacuum pressurize, keep the vacuum within vacuum bag film between-0.09 to-0.1MPa.
After perfusion thermosetting resin terminates, the temperature of solidification is maintained at 35��40 DEG C.
Before mould laying, mould is processed; Die surface plays clean mould agent 2 times, and every 30 minutes one time, wiping is wanted uniformly; Die surface beats hole sealing agent 2 times, and every 30 minutes one time, wiping is wanted uniformly; Die surface plays releasing agent 3 times, every 30 minutes one time, after with clean cotton polishing; Die surface is waxed 2 times, every 30 minutes one time, after with clean cotton polishing.
Compared with prior art, the present invention adopts thermosetting resin, enhanced fabrics and PET foam perforated board to be raw material, by laying on flat plate mold, heats, and vacuum imports perfusion, vacuum pressurize, one-shot forming lightweight automotive floor panel. PET has more prominent pliability and fatigue resistance compared to regular-type foam sandwich, its compressive strength is also higher, adopts PET sandwich foam, under the premise ensureing fiberglass floor strength, realize the lightweight on fiberglass floor so that this product has more superior performance. The automotive floor panel that the inventive method obtains has one-body molded easy processing, structure can design, surfacing is attractive in appearance, warpage preventing, combustion lightweight, difficult, protection against the tide, anticorrosion, good weatherability, acid and alkali-resistance, facilitate the advantages such as cleaning. And the inventive method has good manufacturability, it is widely portable to automotive floor panel industry.
Accompanying drawing explanation
Fig. 1 is the structural representation of laying on mould.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
The method of one-body molded lightweight automotive floor panel, comprises the following steps:
(1) before mould laying, mould being processed: die surface plays clean mould agent 2 times, every 30 minutes one time, wiping is wanted uniformly; Die surface beats hole sealing agent 2 times, and every 30 minutes one time, wiping is wanted uniformly; Die surface plays releasing agent 3 times, every 30 minutes one time, after with clean cotton polishing; Die surface is waxed 2 times, every 30 minutes one time, after with clean cotton polishing.
(2) mould laying: as it is shown in figure 1, lay bottom glass-fiber-fabric 2, PET foam core 3, upper strata glass-fiber-fabric 4, release cloth 5, porous release film 6, PP perforated board 7, flow-guiding screen 8 and vacuum bag film 9 successively on mould 1 surface. Vacuum bag film 9 and mould 1 are tightly connected, and bottom glass-fiber-fabric 2, PET foam core 3, upper strata glass-fiber-fabric 4, release cloth 5, porous release film 6, PP perforated board 7 and flow-guiding screen 8 are all covered by vacuum bag film 9. Winding pipe one end puts in inside vacuum bag film, and the other end is connected with external vacuum pump, and injected rubber hose one end is connected on flow-guiding screen, and the other end is connected with outside glue tank; The edge of bottom glass-fiber-fabric, PET foam core and upper strata glass-fiber-fabric is fixing to be connected, release cloth be sized larger than bottom glass-fiber-fabric or upper strata glass-fiber-fabric, flow-guiding screen is laid within bottom glass-fiber-fabric or glass-fiber-fabric edge, upper strata within the scope of 50mm, and winding pipe is positioned at one end distance bottom glass-fiber-fabric or glass-fiber-fabric edge, the upper strata at least 70mm of vacuum bag film.
(3) start vacuum pump and carry out vacuum pressurize, keep the vacuum within vacuum bag film between-0.09 to-0.1MPa;
(4) thermosetting resin is entered on earth inside layer glass-fiber-fabric, PET foam core and upper strata glass-fiber-fabric by perfusion in glue tank, unnecessary thermosetting resin passes through winding pipe sucking-off, the demoulding after cured process, the temperature solidified is maintained at 35��40 DEG C, obtains by bottom glass-fiber-fabric, PET foam core, upper strata glass-fiber-fabric and is poured in the lightweight automotive floor panel that the thermosetting resin of inside is formed.
Wherein, thermosetting resin is the unsaturated polyester resin being added with volume fraction 2% mill base.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and use invention. These embodiments obviously easily can be made various amendment by person skilled in the art, and General Principle described herein is applied in other embodiments without through performing creative labour. Therefore, the invention is not restricted to above-described embodiment, those skilled in the art's announcement according to the present invention, the improvement made without departing from scope and amendment all should within protection scope of the present invention.

Claims (9)

1. the method for one-body molded lightweight automotive floor panel, it is characterised in that comprise the following steps:
(1) mould laying: lay bottom glass-fiber-fabric, PET foam core, upper strata glass-fiber-fabric, release cloth, porous release film, PP perforated board, flow-guiding screen and vacuum bag film successively at die surface, vacuum bag film is connected with die sealing, bottom glass-fiber-fabric, PET foam core, upper strata glass-fiber-fabric, release cloth, porous release film, PP perforated board and flow-guiding screen are all covered by vacuum bag film, winding pipe one end puts in inside vacuum bag film, the other end is connected with external vacuum pump, injected rubber hose one end is connected on flow-guiding screen, and the other end is connected with outside glue tank;
(2) start vacuum pump and carry out vacuum pressurize;
(3) thermosetting resin is entered on earth inside layer glass-fiber-fabric, PET foam core and upper strata glass-fiber-fabric by perfusion in glue tank, unnecessary thermosetting resin passes through winding pipe sucking-off, the demoulding after cured process, obtains by bottom glass-fiber-fabric, PET foam core, upper strata glass-fiber-fabric and is poured in the lightweight automotive floor panel that the thermosetting resin of inside is formed.
2. the method for one-body molded lightweight automotive floor panel according to claim 1, it is characterised in that described thermosetting resin is the unsaturated polyester resin being added with volume fraction 2% mill base.
3. the method for one-body molded lightweight automotive floor panel according to claim 1, it is characterised in that the edge of described bottom glass-fiber-fabric, PET foam core and upper strata glass-fiber-fabric is fixing to be connected.
4. the method for one-body molded lightweight automotive floor panel according to claim 1, it is characterised in that described release cloth be sized larger than bottom glass-fiber-fabric or upper strata glass-fiber-fabric.
5. the method for one-body molded lightweight automotive floor panel according to claim 1, it is characterised in that described flow-guiding screen is laid within bottom glass-fiber-fabric or glass-fiber-fabric edge, upper strata within the scope of 50mm.
6. the method for one-body molded lightweight automotive floor panel according to claim 1, it is characterised in that described winding pipe is positioned at one end distance bottom glass-fiber-fabric or glass-fiber-fabric edge, the upper strata at least 70mm of vacuum bag film.
7. the method for one-body molded lightweight automotive floor panel according to claim 1, it is characterised in that when carrying out vacuum pressurize, keeps the vacuum within vacuum bag film between-0.09 to-0.1MPa.
8. the method for one-body molded lightweight automotive floor panel according to claim 1, it is characterised in that after perfusion thermosetting resin terminates, the temperature of solidification is maintained at 35��40 DEG C.
9. the method for one-body molded lightweight automotive floor panel according to claim 1, it is characterized in that, before mould laying, mould is processed: die surface plays clean mould agent 2 times, die surface beats hole sealing agent 2 times, die surface plays releasing agent 3 times, then polish with cotton, then wax 2 times at die surface, finally polish with cotton.
CN201410693050.2A 2014-11-26 2014-11-26 Method for integrally forming light automobile floor Pending CN105619836A (en)

Priority Applications (1)

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CN201410693050.2A CN105619836A (en) 2014-11-26 2014-11-26 Method for integrally forming light automobile floor

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CN105619836A true CN105619836A (en) 2016-06-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105729820A (en) * 2016-03-12 2016-07-06 安徽佳力奇航天碳纤维有限公司 Carbon fiber composite material laminating process
CN106113526A (en) * 2016-06-17 2016-11-16 北京宇航高科新材料有限公司 A kind of implementation method of compartment panel
CN111619140A (en) * 2020-04-17 2020-09-04 重庆江东汽车零部件有限责任公司 Process for vacuum pouring of container bottom plate

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CN1464828A (en) * 2001-08-07 2003-12-31 东丽株式会社 Method for producing upsized frp member
CN101585238A (en) * 2009-07-02 2009-11-25 中国人民解放军国防科学技术大学 Integral molding technique and molding system for supersized composite material member
CN101705922A (en) * 2009-11-30 2010-05-12 株洲时代新材料科技股份有限公司 Large-scale composite material wind-power blade and preparation method thereof
CN104044277A (en) * 2014-05-04 2014-09-17 中北大学 Vacuum assisted resin transfer molding integral-forming technology of composite material fuel-tank

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN1464828A (en) * 2001-08-07 2003-12-31 东丽株式会社 Method for producing upsized frp member
CN101585238A (en) * 2009-07-02 2009-11-25 中国人民解放军国防科学技术大学 Integral molding technique and molding system for supersized composite material member
CN101705922A (en) * 2009-11-30 2010-05-12 株洲时代新材料科技股份有限公司 Large-scale composite material wind-power blade and preparation method thereof
CN104044277A (en) * 2014-05-04 2014-09-17 中北大学 Vacuum assisted resin transfer molding integral-forming technology of composite material fuel-tank

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105729820A (en) * 2016-03-12 2016-07-06 安徽佳力奇航天碳纤维有限公司 Carbon fiber composite material laminating process
CN106113526A (en) * 2016-06-17 2016-11-16 北京宇航高科新材料有限公司 A kind of implementation method of compartment panel
CN106113526B (en) * 2016-06-17 2019-05-24 北京宇航高科新材料有限公司 A kind of implementation method of compartment panel
CN111619140A (en) * 2020-04-17 2020-09-04 重庆江东汽车零部件有限责任公司 Process for vacuum pouring of container bottom plate

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Application publication date: 20160601