EVA 樹脂
EVA樹脂用途廣泛，一般情況下，醋酸乙烯含量在5%以下的EVA，其主要產(chǎn)品是薄膜、電線電纜、LDPE改性劑、膠粘劑等；醋酸乙烯含量在5%~10%的EVA產(chǎn)品為彈性薄膜等；醋酸乙烯含量在20~28%的EVA，主要用于熱熔粘合劑和涂層制品；醋酸乙烯含量在5%~45%，主要產(chǎn)品為薄膜（包括農(nóng)用薄膜）和片材，注塑、模塑制品，發(fā)泡制品，熱熔粘合劑等
片材擠出機(jī)
1、參數(shù)
1）擠出機(jī)生產(chǎn)能力Q: 每小時擠出的塑料量
2) 比流量：每小時每轉(zhuǎn)一周擠出機(jī)生產(chǎn)能力
3) 名義比功率：每小時加工kg塑料所需電機(jī)功率
4) 螺桿長徑比L/Db:螺桿工作部分長度與螺桿直徑比值
5）螺桿直徑Db:指大徑，系列標(biāo)準(zhǔn)20、30、45、65、90、120、150、165、200、250、300
6) 驅(qū)動螺桿電機(jī)功率P:KW
7) 螺桿轉(zhuǎn)速范圍:nmin-nmax r/min
2、型號
150/20表示螺桿直徑為150mm，長徑比為20:1塑料擠出
單螺桿擠出機(jī)作為一種常見的擠出機(jī)設(shè)備，用于塑料加工行業(yè)，單螺桿擠出機(jī)一般在有效長度上分為三段，按螺桿直徑大小、螺距、螺深確定三段有效長度，一般按各占三分之一劃分。高效單螺桿擠出機(jī)采用雙階式整體設(shè)計，強(qiáng)化塑化功能，保證了高速高性能穩(wěn)定擠出，特種屏障綜合混煉設(shè)計，保證了物料的混煉效果，高剪切低融塑化溫度保證了物料的高性能低溫低壓計量擠出。在高平直基礎(chǔ)上的高速，高產(chǎn)擠出。
EVA resin is widely used. In general, the content of vinyl acetate is below 5%, and its main products are film, wire and cable, LDPE modifier, adhesive and so on.The content of vinyl acetate is 5%~10% of EVA product is elastic thin film, etc.The content of vinyl acetate is 20~28% EVA, mainly used for hot melt adhesives and coating products.The content of vinyl acetate is 5%~45%, the main products are film (including agricultural film) and sheet, injection molding, molding products, foaming products, hot melt adhesives and so on.
Sheet extruder
1、Parameter
1) extruder production capacity Q: the amount of plastic extruded per hour.
2) ratio flow: extruder production capacity per hour per hour.
3) nominal power: the motor power required to process kg plastic per hour.
4) screw length ratio L/Db: the length of screw working part and screw diameter ratio.
5) screw diameter Db: means large diameter, series standard 20, 30, 45, 65, 90, 120, 150, 165, 200, 250, 300.
6) drive screw motor power P:KW.
7) screw speed range :nmin-nmax r/min.
2, model
150/20 indicates that the diameter of the screw is 150mm and the diameter ratio is 20:1.
Single screw extruder, as a kind of common extrusion machine equipment, used for plastics processing industry, single screw extruder generally on the effective length is divided into three sections, according to the screw diameter, screw pitch, the depth of screw to determine three Duan Youxiao length, generally divided each accounted for a third.Efficient single screw extrusion machine adopts double cascade overall design, strengthen the function of plasticizing and pledge the stable extrusion, high speed high performance special barrier mixing design, integrated to ensure the material mixing effect, high shear and low melting plasticizing temperature to ensure the materials of high performance low temperature low pressure measurement.High speed and high yield extrusion on high flat foundation.
