CN105479914A - Preparation method of fabric type engine hood cover - Google Patents
Preparation method of fabric type engine hood cover Download PDFInfo
- Publication number
- CN105479914A CN105479914A CN201510989111.4A CN201510989111A CN105479914A CN 105479914 A CN105479914 A CN 105479914A CN 201510989111 A CN201510989111 A CN 201510989111A CN 105479914 A CN105479914 A CN 105479914A
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- Prior art keywords
- engine bonnet
- preparation
- polypropylene fiber
- type engine
- shaping
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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
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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
- B32B37/06—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
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- 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
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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
- 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
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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
- 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
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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
- 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
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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
- 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 invention provides a preparation method of a fabric type engine hood cover. The preparation method comprises the steps of firstly, mixing polypropylene fiber master batch with a high temperature-resisting treating agent to prepare polypropylene fiber; then, mixing the polypropylene fiber with fiberglass and simultaneously compounding a PA (Polyamide) membrane and non-woven fabric to form an engine hood cover raw material; further, forming the engine hood cover by carrying out softening and compression molding on the engine hood cover raw material. According to the fabric type engine hood cover prepared by the invention, the requirements on working temperature of the fabric type engine hood cover and light weight of an automobile industry can be met, energy saving and environment protection are realized, and a better sound absorption effect is obtained; by adopting the preparation method disclosed by the invention, compared with die selection of a conventional punching die, the structure is more simple, and the cost is lower.
Description
Technical field
The invention belongs to material for car interior trim parts technical field, be specifically related to a kind of textile type engine bonnet preparation method.
Background technology
Engine bonnet is mainly used in reducing mechanical wounding, and dustproof and waterproof, plays a protective role to engine; its structure is generally made up of outside plate and inner panel, and therebetween is with heat-barrier material, and inner panel plays the effect strengthening rigidity; its geometry is chosen by producer, is bound form substantially.Due to engine bonnet be mainly used for protect engine, therefore, for engine bonnet major requirement be heat-insulating sound-insulating, sole mass is light, rigidity is strong.
But; existing engine bonnet generally adopts plastic material to make; following problem is there is: (1) is owing to producing high temperature in enging cabin during engine operation in actual application; engine bonnet lid thereon; at such high temperatures; plastic material easily deforms, thus affects the protected effect of engine bonnet to engine.
(2) sound absorption function of plastic material is poor, effectively can not isolate, cause noise pollution to surrounding environment to the noise that engine produces.
(3) due to the heat-resistant sound-insulation weak effect of existing plastic material, therefore need to increase when designed engines cover cap extra heat-insulating sound-insulating structure and rigid structure to meet the requirement of engine bonnet, so then can not meet the requirement of automotive light weight technology, waste energy.
Summary of the invention
The object of this invention is to provide a kind of textile type engine bonnet preparation method, for overcoming available engine cover cap heat-insulating sound-insulating weak effect, the problem of automotive light weight technology requirement can not be met.
Technical scheme of the present invention there is provided a kind of textile type engine bonnet preparation method, comprises the steps:
1) get the polypropylene fiber master batch material of some, adulterate high temperature resistant inorganic agent wherein, both mixed.
2) by step 1) mixture that obtains becomes some filaments by spraying silk after high temperature melting, and carries out the shaping polypropylene fiber of the curling preparation of 3D to filament.
3) glass fibre and the step 2 of some is got) polypropylene fiber that obtains mixes, is carded to netted, is heated to both mixtures uniform temperature and forms mixed plate.
4) step 3 is got) obtain two identical mixed plates, in the middle of two mixed plates, add one deck PA film, the equal compound nonwoven cloth of its upper and lower surface, shaping described engine bonnet raw material.
5) elevated temperature heating stage 4) the engine bonnet raw material that obtain make it soften as sheet material, and the sheet material formed after softening is carried out mold pressing and shaping engine bonnet.
6) by step 5) shaping after engine bonnet repair, be up to the standards warehouse-in.
Further, above-mentioned steps 3) in glass fibre adopt hair storehouse to mix with polypropylene fiber.
Further, above-mentioned steps 3) in being carded to netted glass fibre and polypropylene fiber mixture carries out high density acupuncture.
Further, above-mentioned steps 4) in the thickness of PA film be 0.2 ± 0.02mm, the thickness of non-woven fabrics is 0.8 ± 0.08mm.
Further, above-mentioned steps 5) before engine bonnet raw material are softening, engine bonnet raw material are cut to sheet, sheet size is determined according to engine bonnet size, softens respectively to each sheet engine bonnet raw material.
Further, above-mentioned steps 5) in engine bonnet raw material softening temperature be 220 ± 20 DEG C.
Further, above-mentioned steps 5) compression molding time, mould design temperature is 220 DEG C, pressure is 10 ~ 25MP, and heat-insulation pressure keeping 80 ~ 120s makes its thermoplastic shaping under matched moulds state.
Further, above-mentioned steps 5) shaping after the thickness of engine bonnet be 5 ± 1.5mm.
Further, above-mentioned steps 6) when finishing inspection is carried out to engine bonnet, remove shaping after the burr of engine bonnet, and be placed on cubing platform and verify scale error.
Beneficial effect of the present invention:
(1) this textile type engine bonnet preparation method provided by the invention is when preparing polypropylene fiber, high temperature resistant inorganic agent is added in polypropylene fiber master batch material, make shaping after the fusion temperature of polypropylene fiber higher than 170 DEG C, the job requirement of engine bonnet can be met.
(2) engine bonnet that prepared by this textile type engine bonnet preparation method provided by the invention can meet the lightweight requirements of auto industry, energy-conserving and environment-protective, and also has stronger sound absorption function.
(3) it is more simple that traditional die cutting die compared by the mould that this textile type engine bonnet preparation method provided by the invention adopts, and price is lower, cost-saving.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is the process chart of textile type engine bonnet preparation method of the present invention.
Detailed description of the invention
Embodiment:
In order to overcome available engine cover cap heat-insulating sound-insulating weak effect, the problem of automotive light weight technology requirement can not be met, as shown in Figure 1, present embodiments providing a kind of textile type engine bonnet preparation method, comprising the steps:
1) get the polypropylene fiber master batch material of some, this quantity can be determined according to preparation demand, and adulterate high temperature resistant inorganic agent in polypropylene fiber master batch material, both mixed.
2) by step 1) mixture that obtains becomes some filaments by spraying silk after high temperature melting, and carries out the shaping polypropylene fiber of the curling preparation of 3D to filament.
Mixture after fusing adopts spinneret to be spun into some filaments with the form of spinning, dawn number and the length of filament should be controlled according to the needs preparing engine bonnet in the process of spinning, and cooling forming, first stretching to the filament after shaping, to carry out 3D more curling, and then the polypropylene fiber of shaping special type.By in the inner doped with high temperature resistant inorganic agent, make its melting temperature higher.
3) glass fibre and the step 2 of some is got) polypropylene fiber that obtains mixes, is carded to netted, is heated to both mixtures uniform temperature and forms mixed plate.
Concrete, the mixed proportion between glass fibre and polypropylene fiber makes adaptive adjustment according to the requirement of client to engine bonnet.
In this step, glass fibre and polypropylene fiber adopt the form in mao storehouse to mix usually, Mao Cangwei confined space, the wall in hair storehouse is provided with some pipelines, thread glass fibre and thread polypropylene fiber are blown into air-flow mode respectively by air blast is blown in mao storehouse through corresponding pipeline, glass fibre mixes in hair storehouse naturally with polypropylene fiber, and the mixture logic of the glass fibre that this mixing produces afterwards and polypropylene fiber is poor, needs to carry out follow-up combing work to this.
To a kind of optimal way of this step, to being carded to netted glass fibre and polypropylene fiber mixture carries out high density acupuncture, make mutually to tangle between polypropylene fiber and glass fibre in the mixture after combing, the network structure after combing is more stable.
4) step 3 is got) obtain two identical mixed plates, in the middle of two mixed plates, add one deck PA film, the equal compound nonwoven cloth of its upper and lower surface, shaping described engine bonnet raw material.
Concrete, generally select the thickness of PA (Fypro/nylon) film to be that 0.2 ± 0.02mm, PA film has extraordinary water resistance, water-impervious effect can be played.Non-woven fabrics is needle punched non-woven fabrics, and its thickness generally selects 0.8 ± 0.08mm.
5) elevated temperature heating stage 4) the engine bonnet raw material that obtain make it soften as sheet material, and the sheet material formed after softening is carried out mold pressing and shaping engine bonnet.
Larger for the raw-material size of engine bonnet after shaping, can before engine bonnet raw material be softening, engine bonnet raw material are cut to sheet, and sheet size is determined according to engine bonnet size, softens respectively to each sheet engine bonnet raw material.Increase the raw-material cutting step of engine bonnet, it not only can improve the production efficiency of whole technique, and can improve the utilization rate to glass fibre, polypropylene fiber and non-woven fabrics, avoids causing too much waste.
In this step, generally engine bonnet raw material softening temperature is controlled to be 220 ± 20 DEG C, make it both reach the object of soften glass fiber and polypropylene fiber, can not melt both ensureing simultaneously.When compression molding, mold pressing mould used should be determined according to the structure of engine bonnet, and mould design temperature is 220 DEG C, pressure is 10 ~ 25MP, and heat-insulation pressure keeping 80 ~ 120s makes its thermoplastic shaping under matched moulds state.The THICKNESS CONTROL of the engine bonnet after this is shaping is within the scope of 5 ± 1.5mm.
6) by step 5) shaping after engine bonnet repair, be up to the standards warehouse-in.
Concrete, by the engine bonnet after shaping by after taking out in mould, remove its overlap, and after being repaired neat and tidy, engine bonnet is placed in and cubing platform verifies its critical size is without after overproof, is and is up to the standards, warehouse-in of can being cased, for critical size, such as hood covers the position dimension of installing hole corresponding to engine.
In the present invention, the operating ambient temperature of engine bonnet is between-40 DEG C ~ 170 DEG C, and polypropylene fiber softens at 145 DEG C under normal circumstances, and about 175 DEG C fusings, namely conventional polypropylene fiber is difficult to the need of work meeting engine bonnet.To this in the present embodiment, when preparing polypropylene fiber, be added with high temperature resistant inorganic agent within it, the melting temperature of the polypropylene fiber prepared raised, and then the need of work of engine bonnet can be met.Engine bonnet after adopting above-mentioned technique to prepare, because it mainly adopts polypropylene fiber, glass fibre and non-woven fabrics to make, the quality after shaping is very little, can meet the lightweight requirements of auto industry, energy-conserving and environment-protective.Because the engine bonnet entirety of preparation is textile type, make it also have good sound-absorbing effect, on follow-up mould is selected, compare traditional die cutting die structure more simple, cost is also lower.
In addition, because the engine bonnet after shaping has polypropylene fiber, adopt the engine bonnet prepared in this way accordingly and also possess the part of properties of polypropylene fiber, such as good mechanical property, higher resistance to impact and heat resistance, do not react with most chemicals, quality is pure, non-toxic, electrical insulating property is good, these characteristics are all relatively applicable to the working environment of engine bonnet.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (9)
1. a textile type engine bonnet preparation method, is characterized in that: comprise the steps:
1) get the polypropylene fiber master batch material of some, adulterate high temperature resistant inorganic agent wherein, both mixed;
2) by step 1) mixture that obtains becomes some filaments by spraying silk after high temperature melting, and carries out the shaping polypropylene fiber of the curling preparation of 3D to filament;
3) glass fibre and the step 2 of some is got) polypropylene fiber that obtains mixes, is carded to netted, is heated to both mixtures uniform temperature and forms mixed plate;
4) step 3 is got) obtain two identical mixed plates, in the middle of two mixed plates, add one deck PA film, the equal compound nonwoven cloth of its upper and lower surface, shaping described engine bonnet raw material;
5) elevated temperature heating stage 4) the engine bonnet raw material that obtain make it soften as sheet material, and the sheet material formed after softening is carried out mold pressing and shaping engine bonnet;
6) by step 5) shaping after engine bonnet repair, be up to the standards warehouse-in.
2. textile type engine bonnet preparation method as claimed in claim 1, is characterized in that: described step 3) in glass fibre adopt hair storehouse to mix with polypropylene fiber.
3. textile type engine bonnet preparation method as claimed in claim 1 or 2, is characterized in that: described step 3) in being carded to netted glass fibre and polypropylene fiber mixture carries out high density acupuncture.
4. textile type engine bonnet preparation method as claimed in claim 1, is characterized in that: described step 4) in the thickness of PA film be 0.2 ± 0.02mm, the thickness of non-woven fabrics is 0.8 ± 0.08mm.
5. textile type engine bonnet preparation method as claimed in claim 1, it is characterized in that: described step 5) before engine bonnet raw material are softening, engine bonnet raw material are cut to sheet, sheet size is determined according to engine bonnet size, softens respectively to each sheet engine bonnet raw material.
6. the textile type engine bonnet preparation method as described in claim 1 or 5, is characterized in that: described step 5) in engine bonnet raw material softening temperature be 220 ± 20 DEG C.
7. the textile type engine bonnet preparation method as described in claim 1 or 5, it is characterized in that: described step 5) compression molding time, mould design temperature is 220 DEG C, pressure is 10 ~ 25MP, and heat-insulation pressure keeping 80 ~ 120s makes its thermoplastic shaping under matched moulds state.
8. textile type engine bonnet preparation method as claimed in claim 1, is characterized in that: described step 5) shaping after the thickness of engine bonnet be 5 ± 1.5mm.
9. textile type engine bonnet preparation method as claimed in claim 1, is characterized in that: described step 6) to engine bonnet carry out finishing check time, remove shaping after the burr of engine bonnet, and be placed on cubing platform and verify scale error.
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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| Publication Number | Publication Date |
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| CN105479914A true CN105479914A (en) | 2016-04-13 |
| CN105479914B 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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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN103692990A (en) * | 2013-12-16 | 2014-04-02 | 浙江华江科技发展有限公司 | Light fiber-reinforced thermoplastic plate used for high-performance passenger vehicle bottom protection plate and preparation technology 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 |
| EP2853627A1 (en) * | 2013-09-30 | 2015-04-01 | Young-Chul Jeon | Car interior sheet using hygiene product and manufacturing method thereof |
-
2015
- 2015-12-28 CN CN201510989111.4A patent/CN105479914B/en active Active
Patent Citations (7)
| 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 |
| CN102978830A (en) * | 2011-09-02 | 2013-03-20 | 上海杰事杰新材料(集团)股份有限公司 | Glass fiber/flame-retardance polypropylene fiber light composite board and preparation method thereof |
| 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 |
| CN103692990A (en) * | 2013-12-16 | 2014-04-02 | 浙江华江科技发展有限公司 | Light fiber-reinforced thermoplastic plate used for high-performance passenger vehicle bottom protection plate and preparation technology 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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| CN105479914B (en) | 2018-06-26 |
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