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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，120℃下保溫2小時。
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，處理亞克力棒時間視制品厚度，一般均需4小時左右。
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，宜采用接近下限溫度，成型形狀復(fù)雜的深度牽伸制品時宜采用接近上限溫度，一般情況下采用正常溫度。

部分型號部分物性表

LDPE (low density polyethylene # high-pressure polyethylene) /G MN72700/ quantum chemistry
Use: other
Important parameters: melt flow rate: 22 g/10min density: 0.9235 g/cm3, tensile strength: 11 MPa elongation at break: 150% bending modulus: 303 MPa hardness: 53 VEKA softening point: 96 C embrittlement temperature: -35 C
Manufacturer: American quantum chemical company
LDPE (low density polyethylene # high-pressure polyethylene) /NA960080/ quantum chemistry
Use: other
Characteristic notes: excellent processing performance
Important parameters: melt flow rate: 0.9 g/10min density: 0.919 g/cm3, tensile strength: 13.8 MPa, elongation at break: 600% VEKA softening point: 92 C embrittlement temperature: -76 C.
Manufacturer: American quantum chemical company
LDPE (low density polyethylene # high-pressure polyethylene) /NA952094/ quantum chemistry
Use: film grade
Characteristic notes: excellent processing, toughness
Important parameters: melt flow rate: 2 g/10min density: 0.919 g/cm3 tensile strength: 12.4 MPa breaking elongation: 650% VEKA softening point: 85 C
Manufacturer: American quantum chemical company
LDPE (low density polyethylene # high-pressure polyethylene) /NA952126/ quantum chemistry
Use: film grade
Characteristic notes: excellent processing, toughness
Important parameters: melt flow rate: 2 g/10min density: 0.919 g/cm3 tensile strength: 12.4 MPa breaking elongation: 650% VEKA softening point: 85 C
Manufacturer: American quantum chemical company
LDPE (low density polyethylene LDPE /220S/ #) Han Hua Total
Use: film grade
Characteristic notes: mechanical strength
Important parameters: melt flow rate: 0.3 g/10min density: 0.923 g/cm3, notched impact strength: 380 tensile strength: 17 MPa, elongation at break: 770% VEKA softening point: 93 C embrittlement temperature: -70 C.
Manufacturer: Han Hua Total Ltd.
LDPE (low density polyethylene LDPE /221A/ #) Han Hua Total
Use: film grade
Characteristic notes: mechanical strength
Important parameters: melt flow rate: 0.3 g/10min density: 0.922 g/cm3, notched impact strength: 130 tensile strength: 16 MPa, elongation at break: 750% VEKA softening point: 92 C embrittlement temperature: -70 C.
Manufacturer: Han Hua Total Ltd.
LDPE (low density polyethylene LDPE /313S/ #) Han Hua Total
Use: film grade
Characteristic notes: no lubrication
Important parameters: melt flow rate: 0.7 g/10min density: 0.92 g/cm3, notched impact strength: 210 tensile strength: 14 MPa, elongation at break: 700% VEKA softening point: 90 C embrittlement temperature: -70 C.
Manufacturer: Han Hua Total Ltd.
LDPE (low density polyethylene LDPE /431G/ #) Han Hua Total
Use: film grade
Characteristic notes: transparency
Important parameters: melt flow rate: 1 g/10min density: 0.924 g/cm3, notched impact strength: 70 tensile strength: 14 MPa, elongation at break: 740% VEKA softening point: 95 C embrittlement temperature: -70 C.
Manufacturer: Han Hua Total Ltd.
LDPE (low density polyethylene LDPE /XJ700/ Lotte chemical #)
Use: other
Characteristic notes: craft, fluidity
Important parameters: melt flow rate: 22 g/10min density: 0.914 g/cm3 tensile strength: 9 MPa breaking elongation: 440% hardness: 45 VEKA softening point: 78 C
Manufacturer: Korean Music Corporation
LDPE (low density polyethylene LDPE /XJ800/ Lotte chemical #)
Use: other
Characteristic notes: craft, fluidity
Important parameters: melt flow rate: 55 g/10min density: 0.914 g/cm3 tensile strength: 8 MPa breaking elongation: 500% hardness: 45 VEKA softening point: 76 C
Manufacturer: Korean Music Corporation
LDPE (low density polyethylene LDPE # /2410T/ Leander Basil)
Use: other
Important parameters: melt flow rate: 36 g/10min density: 0.924 g/cm3 tensile strength: 11 MPa hardness: 49 VEKA softening point: 89 C
Manufacturer: Liane Basel Industrial Corporation
LDPE (low density polyethylene # high-pressure polyethylene) /808E/ West Lake
Use: other
Characteristic notes: the acceptability of food contact, general use
Important parameters: melt flow rate: 7 g/10min density: 0.917 g/cm3, tensile strength: 9.7 MPa, elongation at break: 400% bending modulus: 193 MPa VEKA softening point: 88 degrees.
Manufacturer: West Lake Chemical Co., Ltd.
LDPE (low density polyethylene # high-pressure polyethylene) /1390P/ West Lake
Use: other
Characteristic notes: good adhesion, low temperature thermal closure
Important parameters: melt flow rate: 15 g/10min density: 0.915 g/cm3, tensile strength: 10 MPa, elongation at break: 300% bending modulus: 193 MPa VEKA softening point: 86 C embrittlement temperature: -52 C.
Manufacturer: West Lake Chemical Co., Ltd.
LDPE (low density polyethylene # high-pressure polyethylene) /DFDA-7093H/ Tianjin United
Use: film grade
Feature memo: Type: film class
Important parameters: melt flow rate: 1.9 g/10min density: 0.924 g/cm3 tensile strength: 25 MPa
Manufacturer: Tianjin United Chemical Co., Ltd.
LDPE (low density polyethylene # high-pressure polyethylene) /DFDA-7096H/ Tianjin United
Use: film grade
Feature memo: Type: film class
Important parameters: melt flow rate: 0.8 g/10min density: 0.925 g/cm3 tensile strength: 34 MPa
Manufacturer: Tianjin United Chemical Co., Ltd.
LDPE (low density polyethylene # high-pressure polyethylene) /DMDA-6210/ Tianjin United
Use: other
Characteristic notes: Type: blow molding products
Important parameters: melt flow rate: 0.33 g/10min density: 0.953 g/cm3 tensile strength: 26 MPa breaking elongation: 600% embrittlement temperature: -100 C
Manufacturer: Tianjin United Chemical Co., Ltd.
LDPE (low density polyethylene # high-pressure polyethylene) /DMDA-6230/ Tianjin United
Use: other
Characteristic notes: Type: blow molding products
Important parameters: melt flow