典型文献
In-situ density measurement for plastic injection molding via ultrasonic technology
文献摘要：
Density variation during the injection molding process directly reflects the state of plastic melt and contains valuable information for process monitoring and optimization.Therefore,in-situ density measurement is of great interest and has significant application value.The existing methods,such as pressure-volume-temperature(PVT)method,have the shortages of time-delay and high cost of sensors.This study is the first to propose an in-situ density measurement method using ultrasonic technology.The analyses of the time-domain and frequency-domain signals are combined in the proposed method.The ultrasonic velocity is obtained from the time-domain signals,and the acoustic impedance is computed through a full-spectral analysis of the frequency-domain signals.Experiments with different process conditions are conducted,including different melt temperature,injection speed,material,and mold structure.Results show that the proposed method has good agreement with the PVT method.The proposed method has the advantages of in-situ measurement,non-destructive,high accuracy,low cost,and is of great application value for the injection molding industry.
文献关键词：
中图分类号：
作者姓名：
Zhengyang DONG;Peng ZHAO;Kaipeng JI;Yuhong CHEN;Shiquan GAO;Jianzhong FU
作者机构：
State Key Laboratory of Fluid Power and Mechatronic Systems,College of Mechanical Engineering,Zhejiang University,Hangzhou 310027,China;Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province,College of Mechanical Engineering,Zhejiang University,Hangzhou 310027,China;Beijing Institute of Aeronautical Materials,Beijing 100095,China;Haitian Plastics Machinery Group Co.,Ltd.,Ningbo 315801,China
文献出处：
引用格式：
[1]Zhengyang DONG;Peng ZHAO;Kaipeng JI;Yuhong CHEN;Shiquan GAO;Jianzhong FU-.In-situ density measurement for plastic injection molding via ultrasonic technology)[J].机械工程前沿,2022(04):212-223
A类：
B类：
In,situ,density,measurement,plastic,injection,molding,via,ultrasonic,technology,Density,variation,during,process,directly,reflects,state,melt,contains,valuable,information,monitoring,optimization,Therefore,great,interest,has,significant,application,value,existing,methods,such,pressure,volume,temperature,PVT,have,shortages,delay,high,cost,sensors,This,study,first,using,analyses,domain,frequency,signals,are,combined,proposed,velocity,obtained,from,acoustic,impedance,computed,through,full,spectral,analysis,Experiments,different,conditions,conducted,including,speed,material,structure,Results,show,that,good,agreement,advantages,destructive,accuracy,low,industry
AB值：
0.517408
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