Effect of vibration parameters of electromagnetic dynamic plastics injection molding machine on mechanical properties of polypropylene samples

2006 ◽  
Vol 102 (2) ◽  
pp. 972-976 ◽  
Author(s):  
Wang Quan ◽  
Jin-Ping Qu ◽  
He Liang
Keyword(s):  
Mechanical Properties ◽  
Injection Molding ◽  
Molding Machine ◽  
Injection Molding Machine ◽  
Plastics Injection Molding ◽  
Vibration Parameters

Effect of Nano-Calcium Carbonate on the Mechanical Properties of Polypropylene

2014 ◽  
Vol 665 ◽  
pp. 343-347
Author(s):  
Chun Feng Sun ◽  
Ming Gao
Keyword(s):  
Mechanical Properties ◽  
Calcium Carbonate ◽  
Injection Molding ◽  
Standard Sample ◽  
Polymer Physics ◽  
Molding Machine ◽  
Injection Molding Machine ◽  
Twin Screw ◽  
Physics Experiment

The task of the polymer physics experiment course is using a certain percentage of nanocalcium carbonate (CaCO3) to composite polypropylene (PP) and using a twin-screw injection molding machine to inject the compound above into a standard sample. After that some mechanical properties test were made to get some nanocalcium carbonate data which may affect the mechanical properties of polypropylene.

Effect of Powder Loading and Binder Materials on Mechanical Properties in Iron-ABS Injection Molding Process

2013 ◽  
Vol 315 ◽  
pp. 582-586 ◽  
Author(s):  
Nasuha Sa'ude ◽  
M. Ibrahim ◽  
Wahab Saidin
Keyword(s):  
Mechanical Properties ◽  
Injection Molding ◽  
Iron Powder ◽  
Acrylonitrile Butadiene Styrene ◽  
Injection Molding Process ◽  
Molding Machine ◽  
Molding Process ◽  
Injection Molding Machine ◽  
Feedstock Material ◽  
Butadiene Styrene

This paper presents the development of a new polymer matrix composite (PMC) feedstock material by the injection molding machine. The material consists of iron powder filled in an acrylonitrile butadiene styrene (ABS) and surfactant powder (binder) material. In this study, the effect of powder loading and binder content on the mechanical properties was investigated experimentally. The detailed formulations of compounding ratio by Brabender Mixer and injection molding machine of the sample specimen was used with various combinations of the new PMC material. Based on the result obtained, it was found that, higher powder loading of iron filler affected the hardness, tensile and flexural strength of PMC material. With 32% iron powder loading in ABS composites increase the flexural force, maximum stress and force of PMC material through an injection molding process.

Glass fiber–reinforced polypropylene composites fabricated by direct fiber feeding injection molding

2018 ◽  
Vol 38 (5) ◽  
pp. 461-467
Author(s):  
Xiaofei Yan ◽  
Lichao Yu ◽  
Hua Shen
Keyword(s):  
Mechanical Properties ◽  
Injection Molding ◽  
Glass Fiber ◽  
Process Parameters ◽  
Polymer Melt ◽  
Core Layer ◽  
Tensile Tests ◽  
Molding Machine ◽  
Injection Molding Machine ◽  
Pp Composites

Abstract This article investigates the effect of process parameters on the mechanical properties of polypropylene-glass fiber (GF/PP) composites made using a new injection molding method known as direct fiber feeding injection molding (DFFIM). In the DFFIM process, continuous fibers are directly guided into the barrel of the injection molding machine through the designed vent and are fed into the polymer melt by the shearing motion of the screw of the injection molding machine during the plasticization process. The DFFIM process improves the fiber length and avoids excessive fiber attrition, resulting in enhanced mechanical properties in the composites. The effect of process parameters on the mechanical properties of manufactured composite specimens is discussed based on the results of tensile tests, three-point flexural tests, and Izod impact tests. Scanning electron microscopy was performed on the fracture surfaces to observe cross-section morphology. There is a fiber agglomeration phenomenon that occurs in the core layer of GF/PP composites made using DFFIM. The number of fiber rovings, number of fiber filaments, matrix feeding speed, and screw speed influence the GF content and distribution in the composites, ultimately affecting the mechanical properties.

Evaluation of Influence of Carbon Nanotubes on the Mechanical Properties and Morphology of the Thermoplastic Polymer Matrix

2015 ◽  
Vol 662 ◽  
pp. 229-232
Author(s):  
Jan Vácha
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Injection Molding ◽  
Polymer Matrix ◽  
Polymeric Materials ◽  
Thermoplastic Polymer ◽  
Molding Machine ◽  
Injection Molding Machine

This paper examines the mechanical properties of the composite of thermoplastic polymer matrix with carbon nanotubes. As the basic polymer matrix polyamide (PA) was used to which the nanoparticles in a given percentage by weight in the form of nanotubes were added. Composite was injected into the Arburg injection molding machine. Different mechanical properties were measured for evaluation. These tests are compared with polymeric materials without added nanofiller. In conclusion influence on the mechanical properties of polymer matrix with carbon nanotubes and without fillers is evaluated.

Choice and Exchange of Lubricating Oil for Injection Molding Machine

2019 ◽  
Vol 12 (4) ◽  
pp. 378-382
Author(s):  
Shan Syedhidayat ◽  
Quan Wang ◽  
Al-Hadad M.A.A. Mohsen ◽  
Jinrong Wang
Keyword(s):  
Injection Molding ◽  
Dimensional Accuracy ◽  
Low Noise ◽  
Working Environment ◽  
Lubricating Oil ◽  
Lubrication System ◽  
Molding Machine ◽  
Oil And Grease ◽  
Injection Molding Machine ◽  
The Stability

Background: One of the most common manufacturing equipment for polymer product is injection molding machine. In order to ensure the precise, stable and continuous operation of the injection molding machine, the maintenance of the lubrication system must be done well. The stability, reliability, rationality and low noise performance of the lubrication system of injection molding machine directly affect the quality of injection products, dimensional accuracy, molding cycle, working environment and maintenance. Objective: The purpose of this study is to introduce the methods of choice, maintenance of lubricating oil for injection molding machine from many literatures and patents in the recent years, such as lubricating oil device, lubricating composite and structure. Methods: An example of the 260M5 automatic injection molding machine is introduced for the inspection and maintenance of the lubrication system including lubricating oil and lubricating grease. Results: To ensure the lubrication of the injection molding machine, it needs to strictly observe the lubrication time and modulus of the injection molding machine. It needs to strictly control the temperature rise of the lubricating oil and select the correct lubricating oil and grease to ensure the lubrication quality. Conclusion: In the operation of the injection molding machine, it is necessary to check that the lubricating oil is sufficient and the lubricating points are working properly. It ensures sufficient lubrication of the injection molding machine and strictly observes the lubrication time and modulus of the injection molding machine. The stored lubricating oil should be sealed well to prevent air pollution.

Analysis on vibration characteristics of screw in filling process of dynamic injection molding machine

2016 ◽  
Vol 36 (8) ◽  
pp. 861-866 ◽  
Author(s):  
Quan Wang ◽  
Zhenghuan Wu
Keyword(s):  
Injection Molding ◽  
Processing Parameters ◽  
Axial Vibration ◽  
Filling Process ◽  
Molding Machine ◽  
Lumped Mass ◽  
Injection Molding Machine ◽  
Injection Speed ◽  
And Performance ◽  
Injection Screw

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.

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