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亞克力的加工工藝

亞克力可以采用澆鑄、注塑、擠出、熱成型、激光雕刻、激光切割等工藝。
澆鑄成型
澆鑄成型用于成型有機(jī)玻璃板材、棒材等型材，即用體本體聚合方法成型型材。澆鑄成型后的制品需要進(jìn)行后處理，后處理?xiàng)l件是60℃下保溫2小時(shí)，120℃下保溫2小時(shí)。
注塑成型
注塑成型采用懸浮聚合所制得的顆粒料，成型在普通的柱塞式或螺桿式注塑機(jī)上進(jìn)行。工藝參數(shù)包括螺桿式注塑機(jī)、柱塞式注塑機(jī)、料筒溫度后部180℃～200℃;中部 190℃～230℃;前部 180℃～210℃;噴嘴溫度180℃～210℃或210℃～240℃;模具溫度℃ 40℃～80℃;注射壓力80MPa～120MPa 或80MPa～130MPa;保壓壓力MPa 40MPa～60MPa;螺桿轉(zhuǎn)速-1.20rp.m～30rp.m;注塑制品也需要后處理消除內(nèi)應(yīng)力，處理在70～80℃熱風(fēng)循環(huán)干燥箱內(nèi)進(jìn)行，處理亞克力棒時(shí)間視制品厚度，一般均需4小時(shí)左右。
熱成型
熱成型是將有機(jī)玻璃板材或片材制成各種尺寸形狀制品的過程，將裁切成要求尺寸的坯料夾緊在模具框架上，加熱使其軟化，再加壓使其貼緊模具型面，得到與型面相同的形狀，經(jīng)冷卻定型后修整邊緣即得制品。加壓可采用抽真空牽伸或用對(duì)帶有型面的凸模直接加壓的方法。采用快速真空低牽伸成型制品時(shí)，宜采用接近下限溫度，成型形狀復(fù)雜的深度牽伸制品時(shí)宜采用接近上限溫度，一般情況下采用正常溫度。

部分型號(hào)部分物性表

LDPE (low density polyethylene LDPE /310A/ #) Han Hua Total
Use: film grade
Characteristic notes: climate resistance
Important parameters: melt flow rate: 8 g/10min density: 0.921 g/cm3, notched impact strength: 120 tensile strength: 15 MPa, elongation at break: 740% VEKA softening point: 89 C embrittlement temperature: -70 C.
Manufacturer: Han Hua Total Ltd.
LDPE (low density polyethylene LDPE /L405/ Japan Sumitomo #)
Use: other
Characteristic notes: characteristics: shrinkage, strength and heat resistance
Important parameters: melt flow rate: 3.7 g/10min density: 0.923 g/cm3
Manufacturer: Sumitomo Chemical Industry Co., Ltd., Japan
LDPE (low density polyethylene # high-pressure polyethylene) /2426K/ Daqing petrochemical
Application: film grade packaging film
Important parameters: melt flow rate: 4 g/10min density: 0.9235 g/cm3 tensile strength: 11 MPa breaking elongation: 450%
Manufacturer: PetroChina Daqing Petrochemical Co
LDPE (low density polyethylene # high-pressure polyethylene) /EF443/ West Lake
Use: other
Characteristic notes: high flow, low warpage, high gloss
Important parameters: melt flow rate: 20 g/10min density: 0.922 g/cm3, tensile strength: 9 MPa, elongation at break: 160% VEKA softening point: 95 DEG heat deformation temperature: -25 C.
Manufacturer: West Lake Chemical Co., Ltd.
LDPE (low density polyethylene LDPE /XL710/ Lotte chemical #)
Use: other
Characteristic notes: good thermal sealing and high speed processing
Important parameters: melt flow rate: 12 g/10min density: 0.918 g/cm3 VEKA softening point: 89 C
Manufacturer: Korean Music Corporation
LDPE (low density polyethylene LDPE /XL510/ Lotte chemical #)
Use: other
Characteristic notes: good thermal sealing and high speed processing
Important parameters: melt flow rate: 5 g/10min density: 0.918 g/cm3 VEKA softening point: 89 C
Manufacturer: Korean Music Corporation
LDPE (low density polyethylene # high-pressure polyethylene) /DMDA-6220/ Tianjin United
Use: other
Characteristic notes: Type: blow molding products
Important parameters: melt flow rate: 0.23 g/10min density: 0.955 g/cm3 fracture elongation: 600% embrittlement temperature: -100 C
Manufacturer: Tianjin United Chemical Co., Ltd.
LDPE (low density polyethylene # high-pressure polyethylene) /DMDA-6400/ Tianjin United
Use: other
Characteristic notes: Type: blow molding products
Important parameters: melt flow rate: 0.9 g/10min density: 0.961 g/cm3 fracture elongation: 750% bending strength: 30 MPa embrittlement temperature: -76 C
Manufacturer: Tianjin United Chemical Co., Ltd.
LDPE (low density polyethylene # high-pressure polyethylene) /DMDA-8920H/ Tianjin United
Use: other
Characteristic notes: Type: blow molding products
Important parameters: melt flow rate: 20 g/10min density: 0.954 g/cm3 tensile strength: 14 MPa embrittlement temperature: -100 C
Manufacturer: Tianjin United Chemical Co., Ltd.
LDPE (low density polyethylene LDPE /M7620S/ Asahi #)
Use: other
Important parameters: melt flow rate: 8 g/10min density: 0.926 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene LDPE /F2020/ Asahi #)
Use: film grade
Feature notes: minimum thickness of 30 microns
Important parameters: melt flow rate: 2 g/10min density: 0.92 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene LDPE /F2140/ Asahi #)
Use: film grade
Feature notes: minimum thickness of 18 microns
Important parameters: melt flow rate: 4 g/10min density: 0.921 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene LDPE /M1820/ Asahi #)
Use: other
Characteristic remark: good resistance to environmental stress cracking
Important parameters: melt flow rate: 2 g/10min density: 0.918 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene LDPE /M2680/ Asahi #)
Use: other
Characteristic remark: good resistance to environmental stress cracking
Important parameters: melt flow rate: 8 g/10min density: 0.926 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene LDPE /M7020S/ Asahi #)
Use: other
Important parameters: melt flow rate: 20 g/10min density: 0.92 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene # LDPE) /Amber plastic 10178Z/ Schulman
Use: other
Characteristic notes: good demoulding, low density
Important parameters: melt flow rate: 10 g/10min density: 0.958 g/cm3
Manufacturer: Schulman plastics company
LDPE (low density polyethylene # high-pressure polyethylene plastic /FSU-105-E/ Schulman)
Use: other
Characteristic notes: slip, low density
Important parameters: melt flow rate: 13 g/10min density: 0.978 g/cm3
Manufacturer: Schulman plastics company
LDPE (low density polyethylene # high-pressure polyethylene plastic /XF-50-MB/ Schulman)
Use: other
Feature notes: high definition
Important parameters: melt flow rate: 7 g/10min density: 1.3 g/cm3
Manufacturer: Schulman plastics company
LDPE (low density polyethylene # LDPE) /1070MN18C/ Total of France
Use: other
Important parameters: melt flow rate: 7.5 g/10min density: 0.918 g/cm3 tensile strength: 12 MPa breaking elongation: 450% hardness: 51 VEKA softening point: 88 C
Manufacturer: Total Petrochemical Industries Co
LDPE (low density polyethylene # high-pressure polyethylene) /LD615/ Yanshan petrochemical
Use: other
Important parameters: melt flow rate: 15 g/10min density: 0.9215 g/cm3 tensile strength: 7 MPa breaking elongation: 75% hardness: 42 VEKA softening