CN101961901B - Car roof moulding technology of large passenger car - Google Patents
Car roof moulding technology of large passenger car Download PDFInfo
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- CN101961901B CN101961901B CN 201010510713 CN201010510713A CN101961901B CN 101961901 B CN101961901 B CN 101961901B CN 201010510713 CN201010510713 CN 201010510713 CN 201010510713 A CN201010510713 A CN 201010510713A CN 101961901 B CN101961901 B CN 101961901B
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Abstract
The invention relates to the composite material moulding field, in particular to a car roof moulding technology of the large passenger car. The invention adopts the following technical scheme: the car roof moulding technology comprises the following steps: firstly spraying unsaturated polyester gel coat on the surface of a mould, spraying the mixture of resin and reincorced fiber glass after the solidification of the unsaturated polyester gel coat at the room temperature; then rolling to defoam, curing and forming, cooling at the room temperature, stripping after cooling; and finally performing thermostatic roasting after stripping. By adopting the above technical scheme, under the premise of ensuring the structural strength and appearance quality of the product, the weight of the product is reduced, the weathering resistance of the product is increased and the product is convenient to repair; and the fuel consumption of the passenger car is lowered and the exhaust emission is reduced.
Description
Technical field
The present invention relates to the composite material forming field, be specifically related to a kind of motorbus roof moulding process.
Background technology
At present general what adopt is all metal material to coach roof, especially galvanized steel plain sheet and aluminium sheet, yet metal material exists a series of deficiencies such as cost is high, weight is large, perishable, maintenance is difficult.Under new market environment, passenger vehicle producer is more and more higher to the requirement of the weight of passenger vehicle, oil consumption, cost, and metal material is in these areas due to self restriction, requirement that can't satisfying the market.
The purpose of this invention is to provide a kind of motorbus roof moulding process, adopt composite fiberglass to make the roof of motorbus.
For achieving the above object, the present invention has adopted following technical scheme, and a kind of motorbus roof moulding process comprises the following steps:
A, the unsaturated polyester (UP) gel coat is sprayed on die surface;
B, unsaturated polyester (UP) gel coat be gel at normal temperatures;
C, the mixture of resin and reinforced plastic glass fibre is sprayed at the gel coat surface;
D, roll-in de-soak;
E, curing molding at high temperature;
Cooling under f, normal temperature, cooling rear molding;
After g, molding, the constant temperature baking, take out the cooling product that namely gets.
By above technical scheme, under the prerequisite that guarantees product structure intensity and presentation quality, alleviated product weight, strengthened the product weatherability, convenient for maintaining has also reduced the passenger vehicle oil consumption simultaneously, has reduced exhaust emissions.
The specific embodiment
A kind of motorbus roof moulding process, mainly comprise the following steps: at first the unsaturated polyester (UP) gel coat is sprayed on die surface, then gel is to semi-cured state at normal temperatures to wait for the unsaturated polyester (UP) gel coat, and the gel time under unsaturated polyester (UP) gel coat normal temperature is 20-30 minute.
Then the mixture of resin and reinforced plastic glass fibre is sprayed at the gel coat surface, in resin with a certain amount of curing agent of interpolation before reinforced plastic glass fibre mixes, curing agent component is methyl ethyl ketone peroxide, its content is 1%-2%, can accelerate the gelation rate of resin.
Treat that resin and reinforced plastic glass fibre namely carry out the operation of roll-in de-soak after being attached on the unsaturated polyester (UP) gel coat fully, get rid of the bubble that is mingled with in resin and glass fibre.The roll-in de-soak is used aluminium roller roll-in product surface, and adopts the probe detector to insert product surface measurement products thickness, guarantees that product even thickness everywhere is consistent.
After product pastes and completes, can send in drying room at high temperature curing molding, hot conditions can be accelerated its curing molding speed, and in drying room, suitable curing molding temperature is 65 ℃-75 ℃, and solidified forming time approximately needs 3-4 hour.
Cooling at normal temperatures after product solidifies fully, cooling rear molding; After the product molding, the constant temperature baking, adopt constant temperature stress release technique, it is baking 6-8 hour in the constant temperature drying room of 70 ℃-80 ℃ that product is sent into temperature, the product internal stress is slowly discharged and the final product internal stress of eliminating, the modification phenomenon that effectively after the molding of solution product, internal stress causes, products obtained therefrom is substantially without distortion.
After internal stresses release, get final product to get product.
In embodiment 1, the curing agent addition is 1%, and when the curing molding temperature was 65 ℃, the time of products solidifying moulding was 4 hours; When the curing molding temperature was 70 ℃, the time of curing molding was 3.8 hours, and when the curing molding temperature was 75 ℃, solidified forming time was 3.5 hours.
In embodiment 2, the curing agent addition is 1.5%, and when the curing molding temperature was 65 ℃, the time of products solidifying moulding was 3.8 hours; When the curing molding temperature was 70 ℃, the time of curing molding was 3.5 hours, and when the curing molding temperature was 75 ℃, solidified forming time was 3.3 hours.
In embodiment 3, the curing agent addition is 2%, and when the curing molding temperature was 65 ℃, the time of products solidifying moulding was 3.5 hours; When the curing molding temperature was 70 ℃, the time of curing molding was 3.3 hours, and when the curing molding temperature was 75 ℃, solidified forming time was 3 hours.
Claims (4)
1. motorbus roof moulding process comprises the following steps:
A, the unsaturated polyester (UP) gel coat is sprayed on die surface;
B, unsaturated polyester (UP) gel coat be gel at normal temperatures;
C, the mixture of resin and reinforced plastic glass fibre is sprayed at the gel coat surface;
D, roll-in de-soak;
E, under the condition of 65-75 ℃ curing molding 3-4 hour;
Cooling under f, normal temperature, cooling rear molding;
After g, molding, constant temperature baking 6-8 hour under the condition of 70-80 ℃, take out the cooling product that namely gets.
2. a kind of motorbus roof moulding process according to claim 1, it is characterized in that: the gel time under described unsaturated polyester (UP) gel coat normal temperature is 20-30 minute.
3. a kind of motorbus roof moulding process according to claim 1, is characterized in that: described roll-in de-soak use aluminium roller roll-in product surface, and employing probe detector measurement product thickness.
4. a kind of motorbus roof moulding process according to claim 1 is characterized in that: described resin with add a certain amount of curing agent before reinforced plastic glass fibre mixes, the composition of curing agent is methyl ethyl ketone peroxide, its content is 1%-2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010510713 CN101961901B (en) | 2010-10-19 | 2010-10-19 | Car roof moulding technology of large passenger car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010510713 CN101961901B (en) | 2010-10-19 | 2010-10-19 | Car roof moulding technology of large passenger car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101961901A CN101961901A (en) | 2011-02-02 |
| CN101961901B true CN101961901B (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010510713 Active CN101961901B (en) | 2010-10-19 | 2010-10-19 | Car roof moulding technology of large passenger car |
Country Status (1)
| Country | Link |
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| CN (1) | CN101961901B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648886A (en) * | 2018-12-27 | 2019-04-19 | 山东世拓房车集团有限公司 | A kind of processing method and device of caravan glass reinforced plastic ceiling |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286161A (en) * | 1999-08-26 | 2001-03-07 | 广州市科宝有限公司 | Quickly shaping technology for glass fibre reinforced plastics products |
| CN1792619A (en) * | 2005-12-31 | 2006-06-28 | 北京玻钢院复合材料有限公司 | Method for mfg. covering unit of composite material for vehicle |
| CN101337432A (en) * | 2007-07-06 | 2009-01-07 | 徐斌 | Manufacturing process of composite material automobile body covering part |
| CN201544505U (en) * | 2009-11-18 | 2010-08-11 | 安徽金诚汽车科技有限公司 | Glass steel product |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000158615A (en) * | 1998-11-25 | 2000-06-13 | Nippon Shokubai Co Ltd | Molded article of unsaturated polyester resin and manufacture thereof |
-
2010
- 2010-10-19 CN CN 201010510713 patent/CN101961901B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286161A (en) * | 1999-08-26 | 2001-03-07 | 广州市科宝有限公司 | Quickly shaping technology for glass fibre reinforced plastics products |
| CN1792619A (en) * | 2005-12-31 | 2006-06-28 | 北京玻钢院复合材料有限公司 | Method for mfg. covering unit of composite material for vehicle |
| CN101337432A (en) * | 2007-07-06 | 2009-01-07 | 徐斌 | Manufacturing process of composite material automobile body covering part |
| CN201544505U (en) * | 2009-11-18 | 2010-08-11 | 安徽金诚汽车科技有限公司 | Glass steel product |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2000-158615A 2000.06.13 |
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| Publication number | Publication date |
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| CN101961901A (en) | 2011-02-02 |
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Owner name: ANHUI JINCEN COMPOSITES CO., LTD. Free format text: FORMER NAME: ANHUI JINCEN AUTOMOBILE SCIENCE + TECHNOLOGY CO., LTD. |
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Address after: Jincheng Industrial Park Shuangfeng Economic Development Zone Hefei city Anhui province 231131 Patentee after: ANHUI JINCEN COMPOSITES CO., LTD. Address before: Jincheng Industrial Park Shuangfeng Economic Development Zone Hefei city Anhui province 231131 Patentee before: Anhui Jincen Automobile Technology Co., Ltd. |
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Denomination of invention: Car roof moulding technology of large passenger car Effective date of registration: 20151225 Granted publication date: 20131106 Pledgee: Merchants Bank Hefei Dongmen branch Pledgor: ANHUI JINCEN COMPOSITES CO., LTD. Registration number: 2015990001167 |
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Date of cancellation: 20170417 Granted publication date: 20131106 Pledgee: Merchants Bank Hefei Dongmen branch Pledgor: ANHUI JINCEN COMPOSITES CO., LTD. Registration number: 2015990001167 |