Shanghai Daoqin Plastics Co., Ltd.

  plastics its excellent property can widely used in automotive field/area in, use amount from 20世纪70 year 代 约50Kg/辆迅 speed upper rise currently 约150Kg/辆, and still in growth in. plastics automotive parts main/primary below/following advantages:

processing 简便, assembly, reduce cost

reduce parts heavy, decrease light automotive weight, reduce 整车油 consumption

corrosion resistant, long lifespan

集 formed 化, 节省空间

美观, 舒适, type more 样化, good

部 separation material can recycling again utilizing, 节省资源

一, inner trim parts

inner trim parts: table/sheet 观, 手感, flame retardant, dispersion features, function property

1. table/sheet sheet/plate: hard 质, soft 质

1） hard 质

由 more dispersion parts separation using/adopting modified PP, PC, ABS, ABS/PC, GMT and other material separation molding rear combined formed;

advantages: equipment investment and parts price relatively low

low 势: table/sheet quality difficult ensure: 皮纹, color easy melt and shrink 痕, easy 刮伤

2） soft 质

指仪 table/sheet sheet/plate upper combined table/sheet 皮, in table/sheet and skeleton/framework filling PU层 table/sheet processing types type:

1） true thermoforming: PVC/ABS

features: tensile force 不均, thick degree 不匀, resistant aging property 差, increase agent easy 析出起雾, dispersion features 差

2） slush molding: PVC, TPU

features: soft/flexible, color 泽/皮纹均一, drop 噪, mold and raw materials cost high, process process/workflow 繁琐

A. PVC: raw materials price relatively low, anti-aging property 差, increase agent easy 析出, low temperature 脆化

B. TPU: can recycling, resistant aging, resistant scratch, low temperature elastic property good, dispersion features excellent; Raw Materials cost relatively high

3）PU喷塑:

advantages: structure 不受限 made, excellent mechanical properties, resistant low temperature and aging property, low dispersion features

disadvantages: mold and Raw Materials cost high, process control complex

4） true 皮包覆: using/adopting will true combined table/sheet sheet/plate upper

advantages: 豪华美观, 手感舒适, dispersion property can good

disadvantages: price 昂贵, process 繁琐, large production

2. inner sheet/plate

skeleton/framework: plastics, PP＋木 powder /植 material fiber, recycling 无纺毡

table/sheet 层: PVC, TPU, material, strip/profile

processing technology: 涉 and injection molding, true thermoforming, hot pressure molding, low pressure injection molding, plastics welding and other

low pressure injection molding features:

模 inner combined material

reduce injection molding pressure and clamping force

decrease/reduce surface shrink 痕, warpage, force

无需黏结 agent

批 amount large

mold structure and process parameters complex, cost high

3. inner 饰: decoration, 隔音, thermal insulation, anti 污, 吸音

1） skeleton/framework: light amount, dimensions stability, rigid property good, easy molding

A: PU foaming 层＋ glass fiber (GF) ＋黏结层＋无纺布, more pressure formed

B: recycling 毡＋ hot melt fiber ＋无纺布, pressure formed

2） table/sheet 层: machine 织布, 人造革, non 织造布 and other

3）尾部 solid methods : 夹头, pressure strip/profile, 自身弯钩, can solid 定 inner trim parts

4. carpet type: decrease 震, 隔音, thermal insulation, 吸音, anti slip, resistant 摩

1） types type: carpet, carpet

2） structure:

A: mono 层: fiber ＋ adhesion agent

B: di 层: 背面覆 combined sheet/plate or recycling fiber 毡

C: more 层: decrease 震层＋ add strong/high 层＋隔离层＋ foaming 层

3） molding process: pressure; foaming

5. base/seat 椅:  safety, 舒适, resistant 久

1） skeleton/framework: metal material, GMT

GMT advantages: reduce weight, formed 化, 舒适, safety, process 简便

2）缓冲垫: resistant creep, impact resistant, resistant fatigue, low temperature elastic property

A. PU foaming: process separation is hot foaming and cold foaming

B. fiber: fiber sorting out, 浸渍乳胶, pressure hot molding

3）面 sleeve/set : true 皮, 人造革, textile product,

ultra- fine fiber, combined PU soft 泡层

4）饰 sheet/plate: usually using/adopting modified PP injection molding formed

6. trim parts: decoration function, 豪华美观, and inner type versus 呼应

1） types type:

A: 天然: sheet/slice, metal sheet/slice

B: made: decoration film

2） processing methods:

A. processing: used for true sheet/slice

B. hot hot stamping: type 面平缓

C. inner combined: 一定曲面 and 倒角

D. parts combined: type complex parts, decoration film true molding, rear parts injection molding

E. printing: equipment investment small, process 繁琐, dispersion features and environmental protection 差

二, outer trim parts

outer trim parts: impact resistant, resistant aging, dimensional stability, spray coating property, function property

1.保险杠

automotive 保险杠

from metal material more is plastics, reduce cost and processing time, decrease light weight, type easy 于变换.

1） commonly used material: modified PP, PC/PBT, SMC, GMT and other

modified PP: usually 指PP/EPDM: rigid property good, impact resistant, resistant scratch, elastic property good, can coating 装, price in

PC/PBT: alloy material, mechanical properties excellent, impact resistant strong/high degree high, easy welding and coating 装

PP＋ nano material: optimization PP physical properties CaCo3, TiO2 and other machine material nano rear, 经处理 and

PP blending formed

2）EPP缓冲 block: can, pressure shrink deformation, decrease/reduce deformation, 保护乘员

3） light trim parts: aluminum, 不锈钢, aluminum film ＋ plastics combined extrusion, plastics electroplating

2. sheet/plate: using/adopting gas process

advantages:

节省材 material use amount

reduce injection molding pressure and clamping force

improve/increase products quality

允许 products thick 不匀, complex

improve/increase products rigid degree and strong/high degree

molding cycle short

延 long mold lifespan

三, functional parts

1. engine 室零部 parts

储 liquid 灌, machine cover/cap, electrical bottle housing/shell, dispersion hot device water 室, gas 滤 device, machine 进/出油 tube/pipe, gas tube/pipe and other using/adopting plastics parts.

advantages: process 简便, decrease light weight, corrosion resistant, 节省空间, easy assembly, 节约资源, functional parts

2. gas tube/pipe

from metal parts is plastics parts, reduce weight, improve/increase efficiency, reduce consumption

welding process: 激 light welding

advantages: 允许 parts 预装焊, 无 welding pellets, 无焊痕, 允许 parts 形变, decrease/reduce residual stress, functional parts

3. 燃油箱

from metal is plastics, separation is mono and more 层;

Europe 燃油渗透 value ≤ 20g/24h; USA: ≤ 2g/24h

more structure: using/adopting ultra-high molecular weight high density PE more 层共挤 blow molding process, make anti 油渗透 property improve/increase to 0.8g/24h.

inner 层＋ bonding 层＋ retardant 隔层＋ bonding 层＋回 material 层＋ outer 层

advantages:

简便 processing process

reduce weight

improve/increase anti 油渗透 property

improve/increase design active property

corrosion resistant

4. front 灯, 尾灯

无 machine 玻璃→PC or PMMA

impact resistant, 美观, process, type more 变