CN104149860A - Rigid reinforced automobile bottom protection plate and production method thereof - Google Patents
Rigid reinforced automobile bottom protection plate and production method thereof Download PDFInfo
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- CN104149860A CN104149860A CN201410414383.7A CN201410414383A CN104149860A CN 104149860 A CN104149860 A CN 104149860A CN 201410414383 A CN201410414383 A CN 201410414383A CN 104149860 A CN104149860 A CN 104149860A
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Abstract
The invention relates to a rigid reinforced automobile bottom protection plate and a production method thereof. The rigid reinforced automobile bottom protection plate is of a structure with five layers, namely, the polypropylene resin layer, the glass fiber mat layer, the polypropylene resin layer, the glass fiber mat layer and the polypropylene resin layer from top to bottom in sequence. The production method comprises the steps of heating the polypropylene resin layers and the glass fiber mat layers in a drying oven, laying and locating the polypropylene resin layers and the glass fiber mat layers in a closed forming mold, starting a forming press and carrying out pressing formation. The production steps of the rigid reinforced automobile bottom protection plate are simple, the produced automobile bottom protection plate is light in weight and high in strength, the weight of finished automobile equipment is greatly lowered, the rigidity of the automobile bottom protection plate is high, the automobile bottom protection plate will not be broken or droop, and the whole production process is free of hazardous substances and is friendly to environment.
Description
Technical field
The production method that the present invention relates to a kind of rigid-enhancement type bottom of car backplate, the invention belongs to automobile exterior trimming parts production technical field.
Background technology
Bottom of car backplate assembly is generally installed under car chassis, directly in the face of road surface; Be mainly used in protecting car chassis and related accessories in driving process, prevent that the sewage on road surface, stone from splashing, Uneven road drags the impact of the problems such as the end on car chassis and related accessories; And by its good state stability, weatherability, carry out the effect of the burn into impact of actv. protection and reduction chassis and related accessories, play the impact that intercepts weather and geographical environment.More and more pursuing high security, environment-friendly type, energy-saving, lightweight, personalized epoch, the exterior component of automobile is on intercepting the impact of weather and geographical environment, extend the period of service of automobile the appearance of lowering fault, a key factor that becomes people and choose automobile.Therefore automobile is had to higher weather resisting property, strengthen the safe requirement of long-term enforcement also more and more higher.In prior art, when car load dispatches from the factory, only chassis is simply sprayed one deck " chassis paint " or directly used PVC to intercept, under perfect condition, perhaps can play a role, but in daily enforcement to be exposed to this simple protection in changeable environment be inadequate at all on chassis.
Summary of the invention
The object of the invention is the not good shortcoming of poor rigidity weight capacity in order to solve bottom of car backplate in prior art, provide that a kind of rigid construction is good, method step simple rigid-enhancement type bottom of car backplate and production method thereof.
The present invention adopts following technical scheme: a kind of production method of rigid-enhancement type bottom of car backplate, comprises the steps:
(1) bottom of car backplate base material acrylic resin layer and Blanket are put between the upper baking oven heating plate of baking oven and lower baking oven heating plate and heated, upper baking oven temperature of heating plate is 350 ~ 380 DEG C, lower baking oven temperature of heating plate is 380 ~ 410 DEG C, and time of heat is 360 ~ 400s;
(2) the bottom of car backplate base material after heating is put into dead front type forming mould, carry out in order lay and location, lay and time for positioning must be controlled in 10s and complete;
(3) start shaping press, forming pressure is 18 ~ 21Mpa, and molding time is 45 ~ 55s, in forming process, the subsidiary cooling performance of mould, regulates dead front type forming mould constant temperature to 40 ~ 50 DEG C, and base material is cooling in dead front type forming mould, cooling pressurize 45 ~ 55s, can obtain finished product.
The rigid-enhancement type bottom of car backplate that adopts the production method of described rigid-enhancement type bottom of car backplate to produce, there is five-layer structure, be followed successively by from top to bottom: acrylic resin layer, glass fibre carpet veneer, acrylic resin layer, glass fibre carpet veneer and acrylic resin layer.
Production stage of the present invention is simple, and lighter in weight, the intensity produced are high, greatly reduces the weight of car load equipment, and the rigidity of product is high, can not fracture, sagging; Whole production process unharmful substance produces, environmental protection.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
The bottom of car backplate base material that following examples are used is by providing across fine horse unit, and product type is PP-CF25-048.
embodiment 1:produce DONGFENG YUEDA Kia Motors K4 bottom guard plate, there is five-layer structure, be followed successively by from top to bottom: acrylic resin layer, glass fibre carpet veneer, acrylic resin layer, glass fibre carpet veneer and acrylic resin layer, specification size is: 1320 × 580mm.
The production method of this rigid-enhancement type bottom of car backplate comprises the steps:
(1) automobile base fabric backplate base material acrylic resin layer and glass fibre carpet veneer are put between the upper baking oven heating plate of baking oven and lower baking oven heating plate and heated, when heating, upper baking oven temperature of heating plate is controlled at 380 DEG C, lower baking oven temperature of heating plate is controlled at 410 DEG C, and time of heat is controlled at 420s;
(2) the bottom of car backplate base material after heating is put into dead front type forming mould, successively base material is carried out to lay and location, lay and time for positioning must be controlled at 10s and complete with interior;
(3) start shaping press, forming pressure is controlled at (2000T) 18Mpa, and molding time is controlled at 45s, and in forming process, the subsidiary cooling performance of mould, carries out product by mold cooling system cooling; 40 DEG C of mould constant temperature, base material in dead front type forming die by the cooling 40s of time of pressurize.The cooling dwell time finishes, and can obtain the finished product of bottom of car backplate.
The bottom of car backplate finished product that embodiment 1 obtains has following performance perameter:
Horizontal firing V is 0mm/min, does not fire; Objectionable impurities is 1.0 grades (Korea Spro is standard); Water repellency requires the defects such as product after water-fast erosion does not ftracture, is out of shape, reduction; The requirement of damping of vibrations is process JIS D1601 Class 1, and after Type A test, product does not ftracture.The defects such as destruction; Shock-resistant requirement is not out of shape, is damaged, cracking for testing rear product; Scratch-resistant test requirements document is maximum scraping degree of depth △ L≤1.2, test rear surface.
embodiment 2:produce Fiat Auto K4L bottom of car backplate, there is five-layer structure, be followed successively by from top to bottom: acrylic resin layer, glass fibre carpet veneer, acrylic resin layer, glass fibre carpet veneer and acrylic resin layer, specification size is: 1180 × 520mm.
The production method of this rigid-enhancement type bottom of car backplate comprises the steps:
(1), automobile base fabric backplate base material acrylic resin layer and glass fibre carpet veneer are put between the upper baking oven heating plate of baking oven and lower baking oven heating plate and heated, when heating, upper baking oven temperature of heating plate is controlled at 350 DEG C, lower baking oven temperature of heating plate is controlled at 380 DEG C, and time of heat is controlled at 360s;
(2), by heating after bottom of car backplate base material put into dead front type forming mould, position with lay and complete according to material lay position in advance, require: lay and time for positioning must be controlled in 10s and complete;
(3), start shaping press, forming pressure is controlled at (2000T) 18Mpa, molding time is controlled at 55s, the subsidiary cooling performance of mould in forming process, carries out product by mold cooling system cooling; 50 DEG C of mould constant temperature, material is by the cooling 55s of time of pressurize in dead front type forming die, and the cooling dwell time finishes, and can obtain the finished product of bottom of car backplate.
The bottom of car backplate finished product that embodiment 2 obtains has following performance perameter:
Horizontal firing V is 0mm/min, does not fire; Odour intensity is 3.0 grades (America and Europe is standard); Shock-resistant rear product does not ftracture, breakage; Chemical-resistant resistance requires there is no corrosion failure for product after test; The requirement of fastness to water is there is no the phenomenon such as variable color, scale flaking after product experiment.
Claims (2)
1. a production method for rigid-enhancement type bottom of car backplate, is characterized in that: comprise the steps:
(1) bottom of car backplate base material acrylic resin layer and Blanket are put between the upper baking oven heating plate of baking oven and lower baking oven heating plate and heated, upper baking oven temperature of heating plate is 350 ~ 380 DEG C, lower baking oven temperature of heating plate is 380 ~ 410 DEG C, and time of heat is 360 ~ 400s;
(2) the bottom of car backplate base material after heating is put into dead front type forming mould, carry out in order lay and location, lay and time for positioning must be controlled in 10s and complete;
(3) start shaping press, forming pressure is 18 ~ 21Mpa, and molding time is 45 ~ 55s, in forming process, the subsidiary cooling performance of mould, regulates dead front type forming mould constant temperature to 40 ~ 50 DEG C, and base material is cooling in dead front type forming mould, cooling pressurize 45 ~ 55s, can obtain finished product.
2. the rigid-enhancement type bottom of car backplate of producing by the production method of rigid-enhancement type bottom of car backplate claimed in claim 1, it is characterized in that: there is five-layer structure, be followed successively by from top to bottom: acrylic resin layer, glass fibre carpet veneer, acrylic resin layer, glass fibre carpet veneer and acrylic resin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410414383.7A CN104149860B (en) | 2014-08-22 | 2014-08-22 | Rigid-enhancement type bottom of car backplate and its production method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410414383.7A CN104149860B (en) | 2014-08-22 | 2014-08-22 | Rigid-enhancement type bottom of car backplate and its production method |
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| CN104149860A true CN104149860A (en) | 2014-11-19 |
| CN104149860B CN104149860B (en) | 2017-11-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106313484A (en) * | 2016-08-23 | 2017-01-11 | 无锡吉兴汽车声学部件科技有限公司 | Production method for bottom protection plate of automobile engine |
| CN106378922A (en) * | 2016-08-31 | 2017-02-08 | 亚通汽车零部件(常熟)有限公司 | Automobile engine bottom guard plate and forming method thereof |
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| CN101987604A (en) * | 2009-08-07 | 2011-03-23 | 中国第一汽车集团公司 | Reinforced polypropylene resin material for passenger vehicle engine bottom guard plates |
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Cited By (3)
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|---|---|---|---|---|
| CN106313484A (en) * | 2016-08-23 | 2017-01-11 | 无锡吉兴汽车声学部件科技有限公司 | Production method for bottom protection plate of automobile engine |
| CN106378922A (en) * | 2016-08-31 | 2017-02-08 | 亚通汽车零部件(常熟)有限公司 | Automobile engine bottom guard plate and forming method thereof |
| CN106378922B (en) * | 2016-08-31 | 2018-11-27 | 亚通汽车零部件(常熟)有限公司 | A kind of automobile engine bottom backplate and its forming method |
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| CN104149860B (en) | 2017-11-07 |
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