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这个结论是什么意识呀ConclusionsAsimplemodelofasinglescrewoperationalcharacteristics(pressuredevelopmentandthroughput)hasbeendeveloped,basedonameltpump.Themodelpredictionshavebeencomprehensivelyandsuccessfullycompared
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这个结论是什么意识呀
Conclusions
A simple model of a single screw operational characteristics
(pressure development and throughput) has been developed,
based on amelt pump.The model predictions have been comprehensively
and successfully compared to a large range of
experimental results available in the published literature.The
model shows that throughput is first and foremost a function
of screwgeometrywhile pressure development,peak pressure
in particular,is a function of polymer viscosity.Plastication is
apparent on the pressure profile and throughput only when
the plastication length is large,for example at higher screw
frequency or lower back pressure.The model is applicable to
single screw extrusion and to injection moulding,and could
be applied further to screw design.It could also be extended
to barrier screws,in which the solid fraction is kept apart the
fromthe molten fraction in a separate channel.Amore precise
handling of temperature in the channel would be desirable.
Conclusions
A simple model of a single screw operational characteristics
(pressure development and throughput) has been developed,
based on amelt pump.The model predictions have been comprehensively
and successfully compared to a large range of
experimental results available in the published literature.The
model shows that throughput is first and foremost a function
of screwgeometrywhile pressure development,peak pressure
in particular,is a function of polymer viscosity.Plastication is
apparent on the pressure profile and throughput only when
the plastication length is large,for example at higher screw
frequency or lower back pressure.The model is applicable to
single screw extrusion and to injection moulding,and could
be applied further to screw design.It could also be extended
to barrier screws,in which the solid fraction is kept apart the
fromthe molten fraction in a separate channel.Amore precise
handling of temperature in the channel would be desirable.
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答案和解析
比较专业
结论
一个简单的模型,单螺杆运行特点
(压力的发展和吞吐量)已经研制成功,
基于amelt泵.该模型预测已全面完成
并成功地相比,在相当大的范围内
实验结果可在发表的文献.该
模型显示吞吐量是国家的首要职能
screwgeometrywhile的发展压力,峰值压力
特别是,是一个功能的聚合物粘度.plastication是
显然对压力剖面和吞吐量只有当
该plastication长度大,举例来说,在较高的螺杆
频率或下背部的压力.该模型适用
单螺杆挤出及注塑成型,并能
适用进一步螺杆设计.也有可能延长
无障碍螺丝,其中固相分数是分开的
fromthe熔融分数在一个单独的渠道.Amore的确切
处理温度,在该频道将是可取的.
结论
一个简单的模型,单螺杆运行特点
(压力的发展和吞吐量)已经研制成功,
基于amelt泵.该模型预测已全面完成
并成功地相比,在相当大的范围内
实验结果可在发表的文献.该
模型显示吞吐量是国家的首要职能
screwgeometrywhile的发展压力,峰值压力
特别是,是一个功能的聚合物粘度.plastication是
显然对压力剖面和吞吐量只有当
该plastication长度大,举例来说,在较高的螺杆
频率或下背部的压力.该模型适用
单螺杆挤出及注塑成型,并能
适用进一步螺杆设计.也有可能延长
无障碍螺丝,其中固相分数是分开的
fromthe熔融分数在一个单独的渠道.Amore的确切
处理温度,在该频道将是可取的.
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