Influence of Rotor Clearance on Internal Mixer''s Capacity

To find the influence of rotor clearance on internal mixer's capacity,3D finite element method(FEM)models were built and pressure field,viscosity field,velocity field,and temperature field were simulated.In addition,the experiment was also conducted on the X(S)M-1.7L laboratory mixer.The simulation shows that rotor clearance brings some effect on internal mixer's capacity such as the pressure,temperature,viscosity,velocity,and shear stress,etc.The experimental result indicates that rotor clearance affected ...     

模具参数化绘图程序的菜单设计

在介绍菜单制作原理基础上，对模具参数化绘图程序的ＡＵＴＯＣＡＤ系统菜单的设计过程作了详细的阐述，包括屏幕式菜单，下拉式菜单和图标式菜单的制作过程，并设计了一种新方法来增强用户介面。     

Influence of Rotor Clearance on Internal Mixer＇s Capacity

To find the influence of rotor clearance on internal mixer's capacity,3D finite element method(FEM)models were built and pressure field,viscosity field,velocity field,and temperature field were simulated.In addition,the experiment was also conducted on the X(S)M-1.7L laboratory mixer.The simulation shows that rotor clearance brings some effect on internal mixer's capacity such as the pressure,temperature,viscosity,velocity,and shear stress,etc.The experimental result indicates that rotor clearance affected the maximum power,consumption of unit energy,production capability,mixing time,and dumping temperature and so on.     

制备条件对磁性聚己内酯纳米纤维形貌结构的影响

采用单因子变量研究法,分别探讨供液速率、纺丝电压、混合溶剂中N,N-二甲基甲酰胺(DMF)的体积分数对静电纺丝所得的磁性聚己内酯(PCL)纳米纤维形貌以及Fe_3O_4与PCL之间复合形式的影响。结果表明,供液速率、纺丝电压、DMF的体积分数对磁性PCL纳米纤维形貌影响显著,但对Fe_3O_4与PCL之间的复合形式无明显影响,二者之间的复合形式为物理复合。     

非线性结构振动的神经控制

首次对非线性结构振动的神经控制进行了概括性癖结,对神经模拟器和神经控制器进行了分类,然后主要总结了近几年来国内外研究者在频域内的研究,最后指出其发展趋势。     

Experimental Study of Integration and Polyblends Performance for Improved Mixing-Extruding Machine

One improved mixing-extruding machine was introduced as the second-generation product of the mixing-molding integrated technology. In the extruding system,the conventional single screw extruder was substituted by a special conical twin-screw extruder,resulting in stronger feeding ability,more stable extrusion pressure,and better quality of products. The integrated mathematical model of mixing-extruding process was also established by theoretical derivation and optimization according to the experimental results.Then its accuracy was verified by the influences of the pressure of floating weight and the cooling water temperature of extruder on the mixing-extruding integrated process. The results showed that the changes of both parameters could give rise to the fluctuation of the temperature and apparent viscosity of polyblends, thus further influencing the screw rotation speed.     

Effects of Radial-Orientation-Die Structure Parameters on Properties of Short Fiber and Rubber Composite Material

The radial-orientation-die has special structure to make short fibers get radial orientation in rubber matrix during extrusion process,which means the physical and mechanical properties of short fiber and rubber composite material will be influenced by the die different structures. The effects of radial-orientation-die structure parameters on properties of short fiber and rubber composite were studied experimentally by different structure parameters, including expansion ratio, expansion angle, dam clearance, molding channel length, convergence angle, and transition channel length. The experimental results indicated that short fiber and rubber composite could get good properties with optimized radial-orientation-die structure parameter. And the optimized structure parameters are that expansion ratio is about 5with an expansion angle of 150°,dam clearance is about 4 mm,molding channel length is about 50 mm,convergence angle is about120°,and transition channel length is about 30 mm. Accordingly,the physical and mechanical properties of the composite can be remarkably improved,which give an obvious anisotropy.     

Radial Orientation Mechanism and Experimental Research of Short Fiber in Tread Compound

Combining with Jeffery equation and mechanics model of fixed point of Euler rigid body,the mechanism and method of short fiber radial orientation and characteristics of movement in tread extrusion process were studied.The influences of tension flow field and shear flow field in flow channel on short fiber orientation have been systemically analyzed.The extrusion die,which had a hinder dam by adopting such principle,was designed.The results show that the expansion ratio and expanding angle of cross section a...     

一种橡胶异型材机头的设计

橡胶异型材机头的设计等技术问题，是橡胶挤出中难以解决的问题，主要是挤出平衡问题，文中通过对一种橡胶异型材机头的设计及试验，对异型材机头的设计提出一些看法。     

A New Type Machine of Mixing-molding for Polyblends

This paper introduces a new type machine for polyblends with excellent mixing capabilities of internal mixer and continuous molding character of extruder.The machine includes two functions — mixing and extrusion molding that have been composed together by rational design,so a tandem production mode — batch + continuous are opened up.The mathematical model of continuous mixing molding was established and verified availably by experimental research.The main physical mechanical property of vulcanizate,which ha...