CN102050062A - Method for producing automobile interior roof - Google Patents
Method for producing automobile interior roof Download PDFInfo
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- CN102050062A CN102050062A CN 201010568202 CN201010568202A CN102050062A CN 102050062 A CN102050062 A CN 102050062A CN 201010568202 CN201010568202 CN 201010568202 CN 201010568202 A CN201010568202 A CN 201010568202A CN 102050062 A CN102050062 A CN 102050062A
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- interior roof
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- automotive interior
- production method
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Abstract
The invention discloses a method for producing an automobile interior roof, which is characterized by comprising the following steps of: compounding a fibrofelt prepared by needling low melting point polypropylene (PP) fibers and polyethylene (PET) fibers through a needling method on upper and lower surfaces of an ultralow-density and high-strength polyurethane (PU) hard-foam sheet respectively by using adhesive films so as to form a base material; heating, softening and expanding the base material, and performing mould pressing compounding with a surface decorated layer; removing waste edges by using water cutting, thermal cutting or other cutting methods; and gluing accessories, and trimming the edges to obtain a finished roof product. The finished roof product has the obvious characteristics of light weight of 600-750g/m<2>, high rigidity, no deformation, good sound-absorbing property, no odor, stable properties, safety and environmental friendliness, and is suitable to serve as the interior roof of a passenger vehicle.
Description
Technical field:
The present invention relates to the automotive trim technical field, is a kind of production method of automotive interior roof specifically, is applicable to the inner decorative ceiling of manned vehicle.
Background technology:
The PU foaming plate is the commonly used inexpensive general base material of present ceiling interior trim, and general density is between 33-40kg/m3, and great majority all are to adopt the auxiliary PU sheet material of glass fibre to satisfy the rigidity of ceiling; At present, the ceiling production technology mainly contains two kinds on the market: two kinds of technologies of wet processing and dry method.Wet processing is used in luxury car usually, and its product size is stable, but there is defective in it for thermoset reclaims environmental protection; Dry method is the main technique mode that ceiling is produced, it is simple to operate, technology controlling and process is corresponding easily, adopted by most interior trim producer, its structure is nonwoven fabrics/glass fibre/PE powder/bonding mould/PU foam sheet (33-40kg/m3)/glass fibre/PE powder substantially, there is certain injury in glass fibre to human body skin in process of production, the PE powder has to pollute to reach to environment has certain destruction to working environment, in order to guarantee the ceiling higher rigidity, grammes per square metre must be controlled at more than the 850 gram/m2, and product weight is heavier.
Summary of the invention:
The objective of the invention is to overcome the deficiency of above-mentioned prior art, and a kind of production method of automotive interior roof is provided, mainly solve contaminated environment in the existing automotive interior roof production process, be detrimental to health and product weight is heavier, be unfavorable for reclaiming problems such as environmental protection.
In order to achieve the above object, the present invention is achieved in that a kind of production method of automotive interior roof, and its special character is to comprise the steps:
A extremely-low density, high-strength PU hard bubble the sheet material upper and lower faces respectively by glued membrane with utilize needle-punching method with low melting point PP fiber and the acupuncture of PET fiber to fibrofelt be compound to that the back is as base material together, fibrofelt has replaced PE rubber powder, glass fibre fully;
The thermoplastic of b base material and the back of expanding are compound with the mold pressing of facial ornament layer;
C removes slitter edge by water cutting, thermal cutting or other cutting mode;
D obtains the ceiling finished product after pasting annex, trim edge.
Wherein in a step, the hard bubble density of sheet material of described extremely-low density, high-strength PU is 16kg/m3; Described glued membrane is made by following weight percentages, 25-45% ethylene-acrylic acid copolymer, 50-70%LDPE, 1-5% slip agent.
Compared with the prior art the production method of a kind of automotive interior roof of the present invention has outstanding substantive distinguishing features and marked improvement: 1, employing is hard bubbled at extremely-low density (16kg/m3), high-strength PU, and the same specification ceiling of sheet material product weight is obvious to reduce by 0.6 kilogram, the general 600-750 gram/m2 of ceiling finished product satisfies present auto trade weight-saving development tendency; 2, adopt special bonding glued membrane, the peeling force between PU base material and the Needled mat is brought up to more than the 8N/5cm by original 3-5N/5cm, improve the quality of product; 3, use low-melting fiber to replace original PE rubber powder and glass fibre as the poly-ester fibres felt of thermoplastic shaping, product and production environment have more the feature of environmental protection when reducing operational sequence; 4, the cost of product of this method production is low, measures light environmental protection, and is energy-saving and cost-reducing.
The specific embodiment:
In order to understand better and to implement, describe the production method of a kind of automotive interior roof of the present invention in detail below in conjunction with embodiment.
Embodiment 1, preparation glued membrane and fibrofelt, glued membrane weight as required, the ethylene acrylic acid co polymer with 35%, 62% low density polyethylene (LDPE), 3% slip agent fully mix and place in the extruder, under 180-260 ℃ technological condition, form through extruding the curtain coating rolling; Fibrofelt is to make by the method for acupuncture with the poly-ester fibres of 45% low melting point PP fiber and 55%;
With density is that hard bubble sheet material and glued membrane, the compound fibrofelt of needle point method of 16kg/m3, high-intensity PU heats compound on equipment complex, guarantee that glued membrane is softening compound with the PU sheet material that hard bubbles under near the state that melts, the temperature of the upper and lower heating plate of technological condition is respectively 180-220 ℃, 160-200 ℃, speed of production 5-7 rice/min, above parameter is different and different with equipment, and ensuring the quality of products, it is compound to finish base material; The facial ornament layer hung over simultaneously compound good base material to be put in the heating cabinet on the mould heat, oven temperature: 160-230 ℃, after 80-150S makes the fully softening expansion of base material, composite base material spread out of with the facial ornament layer carry out mold pressing, pressure-formed shaped article cuts, deburring, installation accessories, packing, obtain finished product, cutting can be adopted the water cutting, also can adopt thermal cutting or other cutting mode.
Embodiment 2, with embodiment 1, difference is glued membrane and fibrofelt, glued membrane is pressed the weight of actual needs, ethylene acrylic acid co polymer with 25%, 70% low density polyethylene (LDPE), 5% slip agent fully mix and place in the extruder, under 180-260 ℃ technological condition, form through extruding the curtain coating rolling; Fibrofelt is to make by the method for acupuncture with the poly-ester fibres of 50% low melting point PP fiber and 50%.
Embodiment 3, and with embodiment 1,2, difference is a glued membrane, glued membrane is pressed the weight of actual needs, ethylene acrylic acid co polymer with 45%, 50% low density polyethylene (LDPE), 5% slip agent fully mix and place in the extruder, under 180-260 ℃ technological condition, form through extruding the curtain coating rolling.
Embodiment 4, and with embodiment 1,2, difference is a glued membrane, glued membrane is pressed the weight of actual needs, ethylene acrylic acid co polymer with 34%, 65% low density polyethylene (LDPE), 1% slip agent fully mix and place in the extruder, under 180-260 ℃ technological condition, form through extruding the curtain coating rolling.
Claims (3)
1. the production method of an automotive interior roof is characterized in that comprising the steps:
A extremely-low density, high-strength PU hard bubble the sheet material upper and lower faces respectively by glued membrane with utilize needle-punching method with low melting point PP fiber and the acupuncture of PET fiber to fibrofelt be compound to together the back as base material;
The thermoplastic of b base material and the back of expanding are compound with the mold pressing of facial ornament layer;
C removes slitter edge by water cutting, thermal cutting or other cutting mode;
D obtains the ceiling finished product after pasting annex, trim edge.
2. the production method of a kind of automotive interior roof according to claim 1 is characterized in that the hard bubble density of sheet material of the extremely-low density described in a step, high-strength PU is 16kg/m3.
3. the production method of a kind of automotive interior roof according to claim 1 is characterized in that the glued membrane described in a step made 25-45% ethylene-acrylic acid copolymer, 50-70%LDPE, 1-5% slip agent by the raw material of following weight per distribution ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010568202 CN102050062B (en) | 2010-11-19 | 2010-11-19 | Method for producing automobile interior roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010568202 CN102050062B (en) | 2010-11-19 | 2010-11-19 | Method for producing automobile interior roof |
Publications (2)
| Publication Number | Publication Date |
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| CN102050062A true CN102050062A (en) | 2011-05-11 |
| CN102050062B CN102050062B (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201010568202 Active CN102050062B (en) | 2010-11-19 | 2010-11-19 | Method for producing automobile interior roof |
Country Status (1)
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| CN (1) | CN102050062B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795087A (en) * | 2012-08-23 | 2012-11-28 | 无锡吉兴汽车部件有限公司 | Production method of automobile ceiling |
| CN102873933A (en) * | 2012-10-11 | 2013-01-16 | 烟台正海汽车内饰件有限公司 | Automobile roof formed by fibrilia net reinforced waste spinning cotton felt, and preparation method thereof |
| CN103144400A (en) * | 2013-03-21 | 2013-06-12 | 芜湖众力部件有限公司 | Method for laminating woven shell fabric to surface of interior trim part of automobile roof plate |
| CN103448631A (en) * | 2013-08-22 | 2013-12-18 | 烟台正海汽车内饰件有限公司 | Molding process for ceiling of complex shape |
| CN103660498A (en) * | 2013-12-24 | 2014-03-26 | 芜湖正海汽车内饰件有限公司 | Production method and production dedicated tool for non-woven fabric skylight ceiling |
| CN110055003A (en) * | 2019-04-24 | 2019-07-26 | 溧阳市山湖实业有限公司 | A kind of PU composite plate hot melt adhesive film |
| CN110625868A (en) * | 2019-09-10 | 2019-12-31 | 上海华迎汽车零部件有限公司 | Manufacturing method of automobile interior trim panel and automobile trunk side trim panel |
| CN114953661A (en) * | 2022-08-01 | 2022-08-30 | 吉林省新维材料科技有限公司 | Mildew-proof flame-retardant basalt fiber composite material for automobile ceiling and manufacturing method thereof |
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| CN201087251Y (en) * | 2007-08-21 | 2008-07-16 | 崔南华 | Compound nonwoven cloth used for vehicle PU foam material armchair surface |
| CN100475528C (en) * | 2006-07-19 | 2009-04-08 | 刘明春 | Automobile ceiling producing process |
| CN101544083A (en) * | 2009-04-27 | 2009-09-30 | 陈雅君 | Polyurethane multilayer composite sheet for automotive headliner and processing method thereof |
| CN101670811A (en) * | 2009-08-07 | 2010-03-17 | 烟台正海汽车内饰件有限公司 | Production method of inner decorative ceiling of car |
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- 2010-11-19 CN CN 201010568202 patent/CN102050062B/en active Active
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| CN100475528C (en) * | 2006-07-19 | 2009-04-08 | 刘明春 | Automobile ceiling producing process |
| CN201087251Y (en) * | 2007-08-21 | 2008-07-16 | 崔南华 | Compound nonwoven cloth used for vehicle PU foam material armchair surface |
| CN101544083A (en) * | 2009-04-27 | 2009-09-30 | 陈雅君 | Polyurethane multilayer composite sheet for automotive headliner and processing method thereof |
| CN101670811A (en) * | 2009-08-07 | 2010-03-17 | 烟台正海汽车内饰件有限公司 | Production method of inner decorative ceiling of car |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795087B (en) * | 2012-08-23 | 2014-08-13 | 无锡吉兴汽车部件有限公司 | Production method of automobile ceiling |
| CN102795087A (en) * | 2012-08-23 | 2012-11-28 | 无锡吉兴汽车部件有限公司 | Production method of automobile ceiling |
| CN102873933A (en) * | 2012-10-11 | 2013-01-16 | 烟台正海汽车内饰件有限公司 | Automobile roof formed by fibrilia net reinforced waste spinning cotton felt, and preparation method thereof |
| CN102873933B (en) * | 2012-10-11 | 2016-06-22 | 烟台正海合泰科技股份有限公司 | Roof of the vehicle of waste spinning cotton felt molding that fibrilia net strengthens and preparation method thereof |
| CN103144400B (en) * | 2013-03-21 | 2016-03-23 | 芜湖众力部件有限公司 | A kind of method of roof panel inside gadget surface recombination woven fabric |
| CN103144400A (en) * | 2013-03-21 | 2013-06-12 | 芜湖众力部件有限公司 | Method for laminating woven shell fabric to surface of interior trim part of automobile roof plate |
| CN103448631A (en) * | 2013-08-22 | 2013-12-18 | 烟台正海汽车内饰件有限公司 | Molding process for ceiling of complex shape |
| CN103660498B (en) * | 2013-12-24 | 2015-10-21 | 芜湖正海汽车内饰件有限公司 | The production method of non-woven fabrics clearstory ceiling and production special tooling thereof |
| CN103660498A (en) * | 2013-12-24 | 2014-03-26 | 芜湖正海汽车内饰件有限公司 | Production method and production dedicated tool for non-woven fabric skylight ceiling |
| CN110055003A (en) * | 2019-04-24 | 2019-07-26 | 溧阳市山湖实业有限公司 | A kind of PU composite plate hot melt adhesive film |
| CN110625868A (en) * | 2019-09-10 | 2019-12-31 | 上海华迎汽车零部件有限公司 | Manufacturing method of automobile interior trim panel and automobile trunk side trim panel |
| CN110625868B (en) * | 2019-09-10 | 2022-03-29 | 上海华迎汽车零部件有限公司 | Manufacturing method of automobile interior trim panel and automobile trunk side trim panel |
| CN114953661A (en) * | 2022-08-01 | 2022-08-30 | 吉林省新维材料科技有限公司 | Mildew-proof flame-retardant basalt fiber composite material for automobile ceiling and manufacturing method thereof |
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| CN102050062B (en) | 2013-04-17 |
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Owner name: YANTAI ZHENGHAI HETAI TECHNOLOGY CO., LTD. Free format text: FORMER NAME: YANTAI ZHENGHAI AUTOMOTIVE INTERIOR CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 265500 Shandong province Yantai Fushan High-tech Zone Xiangfu Street No. 57 Patentee after: Yantai Zheng Hai He Tai Science and Technology Co., Ltd. Address before: 265500 Shandong province Yantai Fushan High-tech Zone Xiangfu Street No. 57 Patentee before: Yantai Zhenghai Automotive Interior Co., Ltd. |