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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(guò)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 #) /2018/ America flintcomb ash
Use: other
Characteristic notes: good toughness and machinability
Important parameters: melt flow rate: 2 g/10min density: 0.92 g/cm3 tensile strength: 12 MPa breaking elongation: 500% hardness: 50 VEKA softening point: 91 C
Manufacturer: American flint Hill resources
LDPE (low density polyethylene # high-pressure polyethylene) /XCF-2/ Romania rompetrol
Use: other
Characteristic notes: homopolymer
Important parameters: melt flow rate: 2 g/10min density: 0.92 g/cm3 VEKA softening point: 92 C
Manufacturer: rompetrol Petrochemical Industries Co, Romania
LDPE (low density polyethylene LDPE /L1604/ Asahi #)
Use: film grade
Feature notes: minimum thickness of 15 microns
Important parameters: melt flow rate: 4 g/10min density: 0.916 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene LDPE /M1680S/ Asahi #)
Use: other
Important parameters: melt flow rate: 8 g/10min density: 0.916 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene LDPE /E2200/ Asahi #)
Use: wire and cable
Important parameters: melt flow rate: 0.25 g/10min density: 0.917 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene LDPE /E3100/ Asahi #)
Use: wire and cable
Important parameters: melt flow rate: 0.25 g/10min density: 0.93 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene LDPE /F1920/ Asahi #)
Use: film grade
Feature notes: minimum thickness of 30 microns
Important parameters: melt flow rate: 2 g/10min density: 0.919 g/cm3
Manufacturer: Japan Asahi Chemical Industry Corporation
LDPE (low density polyethylene LDPE plastic #) /6020F/ Taiwan
Use: film grade
Characteristic notes: mechanical properties
Important parameters: melt flow rate: 0.25 g/10min density: 0.922 g/cm3, notched impact strength: 280 tensile strength: 20 MPa, elongation at break: 550% VEKA softening point: 96 C embrittlement temperature: -75 C.
Manufacturer: Limited by Share Ltd of Taiwan plastic industry
LDPE (low density polyethylene LDPE #) /FA3223/ Borealis
Use: other
Characteristic notes: low density, recoverable materials
Important parameters: melt flow rate: 0.3 g/10min density: 0.922 g/cm3 tensile strength: 25 MPa breaking elongation: 400% VEKA softening point: 96 C
Manufacturer: Nordic Chemical Co., Ltd.
LDPE (low density polyethylene # high-pressure polyethylene) /E-14P/ West Lake
Use: other
Characteristic notes: powdery, low molecular weight, durability and good toughness
Important parameter: hardness: 400
Manufacturer: West Lake Chemical Co., Ltd.
LDPE (low density polyethylene # LDPE) /MBB7512/ Singapore polyolefin
Use: other
Feature notes: general use
Important parameters: melt flow rate: 8.5 g/10min
Manufacturer: Singapore polyolefin Private Companies
LDPE (low density polyethylene # LDPE) /MBB7522/ Singapore polyolefin
Use: other
Feature notes: general use
Important parameters: melt flow rate: 8.5 g/10min
Manufacturer: Singapore polyolefin Private Companies
LDPE (low density polyethylene # LDPE) /FRN1982/ Singapore polyolefin
Use: other
Characteristic notes: flame retardancy
Important parameters: melt flow rate: 60 g/10min density: 1.5 g/cm3
Manufacturer: Singapore polyolefin Private Companies
LDPE (low density polyethylene # LDPE) /MBW2442/ Singapore polyolefin
Use: other
Feature notes: general use
Important parameters: melt flow rate: 17.5 g/10min
Manufacturer: Singapore polyolefin Private Companies
LDPE (low density polyethylene # LDPE) /MBW2878/ Singapore polyolefin
Use: other
Feature notes: general use
Important parameters: melt flow rate: 12.5 g/10min
Manufacturer: Singapore polyolefin Private Companies
LDPE (low density polyethylene # LDPE) /MBW2888/ Singapore polyolefin
Use: other
Feature notes: general use
Important parameters: melt flow rate: 12.5 g/10min
Manufacturer: Singapore polyolefin Private Companies
LDPE (low density polyethylene # LDPE) /MBW3422/ Singapore polyolefin
Use: other
Feature notes: general use
Important parameters: melt flow rate: 12.5 g/10min
Manufacturer: Singapore polyolefin Private Companies
LDPE (low density polyethylene # high-pressure polyethylene) /D4048-F/ West Lake
Use: other
Characteristic notes: acceptable food contact, high rotation difference, medium clear
Important parameters:
Manufacturer: West Lake Chemical Co., Ltd.
LDPE (low density polyethylene LDPE #) /FA 183-51/ TVK in Hungary
Use: other
Important parameters: melt flow rate: 0.21 g/10min density: 0.918 g/cm3
Manufacturer: Hungary TVK
LDPE (low density polyethylene LDPE #) /FA 203-51/ TVK in Hungary
Use: other
Important parameters: melt flow rate: 0.25 g/10min density: 0.92 g/cm3
Manufacturer: Hungary TVK