Analysis on vibration characteristics of screw in filling process of dynamic injection molding machine
-
Quan Wang
and
Zhenghuan Wu
Abstract
This paper presents a study of the characteristics of axial vibration of a screw in the filling process for a novel dynamic injection molding machine. By simplifying a generalized model of the injection screw, physical and mathematic models are established to describe the dynamic response of the axial vibration of a screw using the method of lumped-mass. The damping coefficient of the screw is calculated in the dynamic filling process. The amplitude-frequency characteristics are analyzed by the simulation and experimental test of polypropylene. The results show that the amplitude of a dynamic injection molding machine is not only is related to structure parameters of the screw and performance of the material, such as non-Newtonian index, but also depends on the processing parameters, such as vibration intensity and injection speed.
Acknowledgments
The authors are grateful to Tianjin City High School Science and Technology Fund Planning Project (20140409), Subject Leader Training Program of Tianjin Universities and colleges (RC14-02), Innovation Team Training Plan of Tianjin Universities and colleges (TD12-5043), the Research and Development of Science and Technology Plan of Xiangyang City (2013-63), the Natural Science Foundation of Hubei Province (2014CFB456) and the National Natural Science Foundation of China (51403059) for providing financial support to carry out the research work.
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Articles in the same Issue
- Frontmatter
- Original articles
- Levofloxacin loaded gelrite-cellulose polymer based sustained ocular drug delivery: formulation, optimization and biological study
- Tailoring the in vitro characteristics of poly(vinyl alcohol)-nanohydroxyapatite composite scaffolds for bone tissue engineering
- Effect of nonthermal plasma treatment on the surface of dental resins immersed in artificial saliva
- Spray dried hydroxyapatite-polyvinyl alcohol biocomposites
- Study on the thermal stability and ablation properties of metallic oxide-filled silicone rubber composites using uniform design method
- NR/SBR composites reinforced with organically functionalized MWCNTs: simultaneous improvement of tensile strength and elongation and enhanced thermal stability
- The control and optimization of the curing process of epoxy coatings: a case of poly(glycidoxy siloxane) resins
- Effect of γ irradiation on the impact response of rigid polyurethane foam
- Effects of fiber surface modification on the friction coefficient of luffa fiber/polyester composites under dry sliding condition
- Effect of surface modification on the compressive properties of silica fume/polyurethane composites
- Weldability of pipe grade polyethylenes as realized from thermal and mechanical properties assessments
- Analysis on vibration characteristics of screw in filling process of dynamic injection molding machine
