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- How is melt temperature controlled? 如何控制熔炼温度?
- The thesis is based on the rheology and hydrokinetics of the polymer melt,and calculates the velocity in the die by FEM simulation,and provides die design with theory proof. 本论文中功能块结构的研究,是以熔体的流变性以及流体动力学理论基础上,对在口模中的熔体进行数值模拟,计算出熔体在口模中的流动参数(主要是速度的分布),从而可以科学的对功能块几何结构进行优化。
- Recent research on energy consumption and morphology evolution during the initial stage of polymer melt compounding is reviewed. 综述了关于高聚物在熔融混合过程中能量消耗及初始阶段形态演化的研究现状。
- The types,features and applications of the polymer melt filter for extruder from both domes-tic and foreign producers are introduced. 介绍了国内外挤出机用高分子熔体过滤器的种类、特性和应用。
- A novel method for dispersing inorganic powder in the polymer melt,the in situ bubble stretching method (ISBS method) was proposed. 提出了一种用非机械力场分散聚合物熔体中无机粉体的新方法:原位气泡拉伸法。
- Apart from raising the barrel temperature what other techniques can be used to raise the melt temperature? 除了提高料管温度外,还可以使用其他什么方法来提高融料温度?
- Too low melt temperature: Inhomogeneous melt with cold material inside (Which cause empty parts, broken parts etc. 熔体温度太低:材料塑化不均,熔体内含冷料(从而造成充模不足,冷料,产品断裂等)
- Ultrasonic apparatus and pressure transducers are employed in the die, which separatelycontrols the dilation of the bubbles and tests the rheological behavior of the polymer melt. 并在机头中引入了超声波装置及压力传感器,分别控制气泡的膨胀及测定熔体的流变性能。
- Its melt temperature is high and it has proper viscosity and low temperature flexibility. 具有较高的熔融温度,适宜的粘度和良好的低温柔韧性;
- In the numerical simulation of parison formation, there are two main methods: one is to treat the polymer melt as a Newtonian fluid, the other is as a viscoelastic fluid. 对型坯成型阶段的数值模拟可分为两种方法:一种是将型坯机头内的聚合物熔体看作牛顿流体,另一种是将其看作粘弹性流体。
- Melt temperature should be a part of standard record-keeping, but because it changes very slowly it often gets ignored. 熔体温度应该成为常规记录中的一部分,但由于它变化比较慢,所以经常给忽略。
- Study shows strong elastic deformation generates in the polymer melt due to entrance conveying extensional flow and resulting in greater extrudate swell rctio. 研究表明,入口收敛拉伸流变,是聚合物熔体产生了强烈的弹性形变,导致了较大的挤出物胀大比。
- Results show the degree that gas lashed polymer melt is severe, and there are some complex fluid patterns and diffused feature near the point of gas injection. 结果表明,在气体注射点近区,气体对聚合物熔体冲击程度较大,呈现出复杂流动形态及扩散特征;
- Isothermal flow of the polymer melt in channel was discussed based on the work principle of screw in dynamic processing with self-mended Tanner constitutive equations. 同时,近似地给出了振动力场下注塑螺杆熔体输送能力的表达式,理论分析了振动参数对沿程压力降及动态成型熔体输送能力的影响。
- The melt flow index of the blends was increased when the content of PEEK was decreased and melt temperature was increased. 结果表明:共混物的熔体流动指数随PEEK含量的降低和熔体温度的升高而增加;
- This model could be used for all kinds of polymer melt filter processer to achieve non-stop screen changing drven by hydraulilc unit or manual operation. 详细说明:适用于各种熔体、胶体过滤加工,不停机更换过滤网,可液压或手动。
- The series adjustment system that using melt temperature as main parameters was composed in HTM temperature control system. 在热媒温度控制系统中以熔体温度作为主参数,组成串极调节系统。
- P.S.B.Zdanski, and M.Vaz, "Polymer melt flow in plane channels: Hydrodynamic and thermal boundary layers," Materials Processing Technology, Vol. 179, 2006, pp. 207-211. 黄呈福,田口品质工程方法之控制系统参数调整,国立中正大学机械工程研究所,硕士论文,民国九十年。
- The mold temperature obviously influences the molding process, while the melt temperature influences comparatively less. 模具温度对成型过程的影响较大,熔体温度的影响相对较小。
- With the development of polymer melt gear pump, the transport characteristics and main performance parameters were studied by a corotating twin screw exturder. 结合聚合物熔体齿轮泵的开发研制,并以同向平行双螺杆挤出机为实验平台,研究了聚合物熔体齿轮泵的输送特性和主要性能参数。