CN105479914B - A kind of textile type engine bonnet preparation method - Google Patents
A kind of textile type engine bonnet preparation method Download PDFInfo
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- CN105479914B CN105479914B CN201510989111.4A CN201510989111A CN105479914B CN 105479914 B CN105479914 B CN 105479914B CN 201510989111 A CN201510989111 A CN 201510989111A CN 105479914 B CN105479914 B CN 105479914B
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- engine bonnet
- polypropylene fiber
- raw material
- textile type
- preparation
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/105—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles for motor cars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/14—Mixture of at least two fibres made of different materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/08—Cars
Abstract
The present invention provides a kind of textile type engine bonnet preparation methods, polypropylene fiber is first mixed with high temperature resistant inorganic agent using polypropylene fiber master batch material, then polypropylene fiber is mixed with glass fibre, also compound PA films and non-woven fabrics are to be molded engine bonnet raw material simultaneously, and then engine bonnet raw material are molded engine bonnet by way of softening and compression molding.Textile type engine bonnet prepared by the present invention disclosure satisfy that the light-weighted requirement of its operating temperature and auto industry, energy conservation and environmental protection, and with preferable sound-absorbing effect, simpler compared to traditional die cutting die structure in mold selection using this preparation method, cost is relatively low.
Description
Technical field
The invention belongs to material for car interior trim parts technical fields, and in particular to a kind of textile type engine bonnet preparation side
Method.
Background technology
Engine bonnet is mainly used for reducing mechanical wounding, and dustproof and waterproof plays a protective role to engine, structure one
As be made of outside plate and inner panel, centre folder with heat-barrier material, inner panel play the role of enhancing it is rigid, geometry is selected by producer
It takes, substantially bound form.Since engine bonnet is mainly used for protecting engine, for engine bonnet master
It is required that it is heat-insulating sound-insulating, sole mass is light, rigidity is strong.
However, existing engine bonnet is generally made of plastic material, asked in actual application there are following
Topic：（1）Due to generating high temperature when engine works in enging cabin, engine bonnet lid on it, at such high temperatures,
Plastic material easily deforms, so as to influence protecting effect of the engine bonnet to engine.
（2）The sound absorption function of plastic material is poor, it is impossible to which the noise generated to engine is effectively isolated, to ring around
Cause noise pollution in border.
（3）Since the heat-resistant sound-insulation effect of existing plastic material is poor, it is therefore desirable to increase when designing engine bonnet
Additional heat-insulating sound-insulating structure and rigid structure meet the requirement of engine bonnet, and cannot then meet automotive light weight technology in this way
Requirement, waste of energy.
Invention content
The object of the present invention is to provide a kind of textile type engine bonnet preparation method, for overcoming available engine the cover
Thermal insulation and sound insulation effect is poor, it is impossible to the problem of meeting automotive light weight technology requirement.
The technical scheme is that providing a kind of textile type engine bonnet preparation method, include the following steps：
1) a certain number of polypropylene fiber master batch materials are taken, high temperature resistant inorganic agent is adulterated thereto, the two is uniformly mixed.
2) mixture that step 1) obtains is subjected to 3D curlings by spinneret after high temperature melting into several filaments, and to filament
Prepare molding polypropylene fiber.
3) a certain number of glass fibres is taken to be uniformly mixed with the polypropylene fiber that step 2) obtains, the two mixture is combed
It reticulates, is heated to certain temperature and forms mixed plate.
4) two identical mixed plates that step 3) obtains are taken, one layer of PA film are added among two mixed plates, thereon
The equal compound nonwoven cloth in lower surface is molded the engine bonnet raw material.
5) elevated temperature heating stage 4) obtained engine bonnet raw material make its softening be plank, the plate that will be formed after softening
Material is molded and is molded engine bonnet.
6) step 5) engine bonnet after molding is modified, examines qualified storage.
Further, above-mentioned steps 3) in glass fibre mixed with polypropylene fiber using hair storehouse.
Further, above-mentioned steps 3) in carry out high density with polypropylene fiber mixture to combing webbed glass fibre
Needle pierces.
Further, above-mentioned steps 4) in PA films thickness for 0.2 ± 0.02mm, the thickness of non-woven fabrics for 0.8 ±
0.08mm。
Further, above-mentioned steps 5) before the softening of engine bonnet raw material, engine bonnet raw material are cut to
Sheet, sheet size is determined according to engine bonnet size, and each sheet engine bonnet raw material are softened respectively.
Further, above-mentioned steps 5) in engine bonnet raw material softening temperature be 220 ± 20 DEG C.
Further, above-mentioned steps 5) compression molding when, mold set temperature is 220 DEG C, pressure is 10~25MP, and
80~120s of heat-insulation pressure keeping makes its thermoplastic shaping under molding state.
Further, above-mentioned steps 5) engine bonnet after molding thickness be 5 ± 1.5mm.
Further, above-mentioned steps 6) to engine bonnet carry out finishing examine when, remove engine bonnet after molding
Flash, and place it on cubing platform and verify scale error.
Beneficial effects of the present invention：
(1) this textile type engine bonnet preparation method provided by the invention is when preparing polypropylene fiber, in polypropylene fibre fibre
Tie up addition high temperature resistant inorganic agent in master batch material so that the fusion temperature of polypropylene fiber after molding is higher than 170 DEG C, can meet hair
The job requirement of motivation the cover.
(2) engine bonnet prepared by this textile type engine bonnet preparation method provided by the invention disclosure satisfy that vapour
The lightweight requirements of turner industry, energy conservation and environmental protection, and also there is stronger sound absorption function.
(3) mold compares traditional punching used by this textile type engine bonnet preparation method provided by the invention
Mold is simpler, and price is relatively low, cost-effective.
The present invention is described in further details below with reference to attached drawing.
Description of the drawings
Fig. 1 is the process flow chart of textile type engine bonnet preparation method of the present invention.
Specific embodiment
Embodiment：
In order to overcome available engine the cover thermal insulation and sound insulation effect poor, it is impossible to the problem of meeting automotive light weight technology requirement, such as
Shown in Fig. 1, a kind of textile type engine bonnet preparation method is present embodiments provided, is included the following steps：
1) a certain number of polypropylene fiber master batch materials are taken, which can determine according to preparation demand, to polypropylene fiber
High temperature resistant inorganic agent is adulterated in master batch material, the two is uniformly mixed.
2) mixture that step 1) obtains is subjected to 3D curlings by spinneret after high temperature melting into several filaments, and to filament
Prepare molding polypropylene fiber.
Mixture after fusing uses spinneret to be spun into several filaments in the form of spinning, should during spinning
The denier and length of filament are controlled, and be cooled and shaped according to the needs for preparing engine bonnet, to filament after molding elder generation
Stretching carries out 3D curlings again, and then is molded extraordinary polypropylene fiber.By doped with high temperature resistant inorganic agent, making its fusing point temperature in the inner
Degree is higher.
3) a certain number of glass fibres is taken to be uniformly mixed with the polypropylene fiber that step 2) obtains, the two mixture is combed
It reticulates, is heated to certain temperature and forms mixed plate.
Specifically, the mixed proportion between glass fibre and polypropylene fiber is made according to requirement of the client to engine bonnet
The adjustment of adaptability.
In this step, glass fibre is mixed with the form in polypropylene fiber generally use hair storehouse, Mao Cangwei confined airs
Between, several pipelines are provided on the wall in hair storehouse, Filamentous glass fibre is blown with Filamentous polypropylene fiber by air blower respectively
The mode for entering air-flow is blown into through corresponding pipeline in mao storehouse, and glass fibre mixes naturally with polypropylene fiber in hair storehouse, this mixed
The glass fibre and the mixture logic of polypropylene fiber generated after conjunction is poor, this is needed to carry out subsequent combing work.
It is highly dense to combing webbed glass fibre and the progress of polypropylene fiber mixture to a kind of optimal way of this step
Spend needle thorn so that mutually tangle between polypropylene fiber and glass fibre in the mixture after combing, the reticular structure after combing is more
Add stabilization.
4) two identical mixed plates that step 3) obtains are taken, one layer of PA film are added among two mixed plates, thereon
The equal compound nonwoven cloth in lower surface is molded the engine bonnet raw material.
Specifically, the thickness for generally selecting PA (Fypro/nylon) film is 0.2 ± 0.02mm, PA films have very
Good water resistance, can play the role of water-impervious.Non-woven fabrics is needle punched non-woven fabrics, and thickness generally selects 0.8 ± 0.08mm.
5) elevated temperature heating stage 4) obtained engine bonnet raw material make its softening be plank, the plate that will be formed after softening
Material is molded and is molded engine bonnet.
It is larger for the size of engine bonnet raw material after molding, can be before the softening of engine bonnet raw material, it will
Engine bonnet raw material are cut to sheet, and sheet size is determined according to engine bonnet size, and each sheet is started respectively
Cowl cover raw material are softened.Increase the cutting step to engine bonnet raw material, can not only improve entire technique
Production efficiency, and the utilization rate to glass fibre, polypropylene fiber and non-woven fabrics can be improved, avoid causing excessive wave
Take.
In this step, it is 220 ± 20 DEG C generally by the control of engine bonnet raw material softening temperature, it is made both to have reached soft
Change the purpose of glass fibre and polypropylene fiber, while ensure that the two will not melt.In compression molding, being molded mold used should
It is determined according to the structure of engine bonnet, mold set temperature is 220 DEG C, pressure is 10~25MP, and under molding state
80~120s of heat-insulation pressure keeping makes its thermoplastic shaping.The thickness control of the engine bonnet after molding is in the range of 5 ± 1.5mm.
6) step 5) engine bonnet after molding is modified, examines qualified storage.
Specifically, by engine bonnet after molding by being taken out in mold after, remove its overlap, and modify totally
After clean and tidy, hood is placed on cubing platform and verifies its critical size without after overproof, it is qualified as to examine, and can be filled
Case is put in storage, and the position dimension of mounting hole corresponding with engine is covered for critical size, such as hood.
In the present invention, between the operating ambient temperature of engine bonnet is -40 DEG C~170 DEG C, and polypropylene fibre under normal circumstances
Fiber softens at 145 DEG C, and in 175 DEG C or so fusings, i.e., conventional polypropylene fiber is difficult to the need of work for meeting engine bonnet.
To this in the present embodiment, when preparing polypropylene fiber, high temperature resistant inorganic agent is added in it so that the polypropylene fiber of preparation
Melting temperature increases, and then can meet the need of work of engine bonnet.Engine bonnet after being prepared using above-mentioned technique,
Since it is mainly made of polypropylene fiber, glass fibre and non-woven fabrics, quality after molding is very small, disclosure satisfy that automobile
The lightweight requirements of industry, energy conservation and environmental protection.Due to the engine bonnet generally textile type of preparation, make it that also there is preferable inhale
Audio fruit, simpler compared to traditional die cutting die structure in the selection of subsequent mold, cost is also than relatively low.
In addition, since engine bonnet after molding has polypropylene fiber, what is accordingly prepared in this way starts
Cowl cover also has the part of properties of polypropylene fiber, such as good mechanical property, higher impact resistance and heat resistance, with
Most chemicals do not react, quality is pure, non-toxic, electrical insulating property is good etc., these characteristics are relatively suitble to engine
The working environment of the cover.
The foregoing examples are only illustrative of the present invention, does not form the limitation to protection scope of the present invention, all
Be with the present invention it is the same or similar design all belong to the scope of protection of the present invention within.
Claims (5)
1. a kind of textile type engine bonnet preparation method, it is characterised in that：Include the following steps：
1) a certain number of polypropylene fiber master batch materials are taken, high temperature resistant inorganic agent is adulterated thereto, the two is uniformly mixed；
2) mixture that step 1) obtains is prepared by spinneret after high temperature melting into several filaments, and to filament progress 3D curlings
It is molded polypropylene fiber；
3) a certain number of glass fibres is taken to be uniformly mixed with the polypropylene fiber that step 2) obtains, the two mixture is combed into networking
Shape carries out high density needle thorn to combing webbed glass fibre with polypropylene fiber mixture, be heated to certain temperature formed it is mixed
Plywood material；
4) two identical mixed plates that step 3) obtains are taken, one layer of PA film are added among two mixed plates, thereon following table
The equal compound nonwoven cloth in face is molded the engine bonnet raw material；
5) elevated temperature heating stage 4) obtained engine bonnet raw material make its softening be plank, by the plank formed after softening into
Row is molded and is molded engine bonnet；Engine bonnet raw material softening temperature is 220 ± 20 DEG C, and during compression molding, mold is set
Constant temperature degree is 220 DEG C, pressure is 10~25MP, and 80~120s of heat-insulation pressure keeping makes its thermoplastic shaping under molding state, molding
The thickness of engine bonnet afterwards is 5 ± 1.5mm；
6) step 5) engine bonnet after molding is modified, examines qualified storage.
2. textile type engine bonnet preparation method as described in claim 1, it is characterised in that：Glass fibers in the step 3)
Dimension is mixed with polypropylene fiber using hair storehouse.
3. textile type engine bonnet preparation method as described in claim 1, it is characterised in that：PA films in the step 4)
Thickness is 0.2 ± 0.02mm, and the thickness of non-woven fabrics is 0.8 ± 0.08mm.
4. textile type engine bonnet preparation method as described in claim 1, it is characterised in that：The step 5) is in engine
Before the softening of the cover raw material, engine bonnet raw material are cut to sheet, sheet size is come true according to engine bonnet size
It is fixed, each sheet engine bonnet raw material are softened respectively.
5. textile type engine bonnet preparation method as described in claim 1, it is characterised in that：The step 6) is to engine
When the cover carries out finishing inspection, the flash of engine bonnet after molding is removed, and places it on cubing platform and verifies that size is missed
Difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510989111.4A CN105479914B (en) | 2015-12-28 | 2015-12-28 | A kind of textile type engine bonnet preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510989111.4A CN105479914B (en) | 2015-12-28 | 2015-12-28 | A kind of textile type engine bonnet preparation method |
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| CN105479914A CN105479914A (en) | 2016-04-13 |
| CN105479914B true CN105479914B (en) | 2018-06-26 |
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| CN201510989111.4A Active CN105479914B (en) | 2015-12-28 | 2015-12-28 | A kind of textile type engine bonnet preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101439604A (en) * | 2008-12-10 | 2009-05-27 | 黄云清 | Method for manufacturing light GMT sheet material |
| CN103113667A (en) * | 2012-12-26 | 2013-05-22 | 江苏金发科技新材料有限公司 | Continuous long glass fiber reinforced polypropylene/nylon composite material with core layer structure and preparation process thereof |
| US20130320703A1 (en) * | 2012-06-04 | 2013-12-05 | Kevin Jagiello | Protective cover securing apparatus |
| CN103753891A (en) * | 2013-12-30 | 2014-04-30 | 天津博信汽车零部件有限公司 | Automobile interior trim part and forming process for same |
| EP2853627A1 (en) * | 2013-09-30 | 2015-04-01 | Young-Chul Jeon | Car interior sheet using hygiene product and manufacturing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978830B (en) * | 2011-09-02 | 2016-04-06 | 上海杰事杰新材料(集团)股份有限公司 | A kind of glass fibre/flame-retardant polypropylene fibre light composite board and preparation method thereof |
| CN103692990B (en) * | 2013-12-16 | 2016-08-17 | 浙江华江科技股份有限公司 | A kind of high-performance passenger vehicle bottom backplate light fibre strengthens thermoplastic sheet and preparation technology thereof |
-
2015
- 2015-12-28 CN CN201510989111.4A patent/CN105479914B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101439604A (en) * | 2008-12-10 | 2009-05-27 | 黄云清 | Method for manufacturing light GMT sheet material |
| US20130320703A1 (en) * | 2012-06-04 | 2013-12-05 | Kevin Jagiello | Protective cover securing apparatus |
| CN103113667A (en) * | 2012-12-26 | 2013-05-22 | 江苏金发科技新材料有限公司 | Continuous long glass fiber reinforced polypropylene/nylon composite material with core layer structure and preparation process thereof |
| EP2853627A1 (en) * | 2013-09-30 | 2015-04-01 | Young-Chul Jeon | Car interior sheet using hygiene product and manufacturing method thereof |
| CN103753891A (en) * | 2013-12-30 | 2014-04-30 | 天津博信汽车零部件有限公司 | Automobile interior trim part and forming process for same |
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| CN105479914A (en) | 2016-04-13 |
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