田口方法應用於反壓之氣體輔助射出成型的最佳化及模擬分析

吳鑑洲

3.238.249.17，Hello！

Close
Search Quick Search Advanced Search Publication Search	Personal Service Member Login Searching History Use Bonus Card SYMSKAN
Browse Browse by University of Graduate Thesis Browse by Pinyin of Graduate Thesis Browse by Conference Proceedings Topic Browse by Conference Proceedings Publisher Browse by Pinyin of Conference Proceedings Browse by eBook Category Browse by eBook Topic Browse by eBook Publisher
Customer Services Authorize Airiti Recommend a Journal

Search Symbol (Half-width)	Description of Search Symbols
Space	"AND" indicates the intertwining of key terms used in a search
Double Quotation Marks ("") ( " " )	Double quotation marks indicate the beginning and end of a phrase, and the search will only include terms that appear in the same order of those within the quotations. Example: "image process" ： " image process "
?	Indicates a variable letter. Entering two ? will indicate two variable letters, and so on. Example: "Appl?", search results will yield apple, apply… e , appl y … ( (often used to English word searches) )
*	Indicates an unlimited number of variable letters to follow, from 1~n. Example: Enter "appl*", search results will yield apple, apples, apply, applied, application…(often used in English word searches) e , appl es , appl y , appl ied , appl ication … ( (often used to English word searches) )
AND、OR、NOT	Boolean logic combinations of key words is a skill used to expand or refine search parameters. (1) AND (1) AND: Refines search parameters (2) OR (2) OR: Expands search parameters (3) NOT: Excludes irrelevant parameters

DOI stands for Digital Object Identifier （ D igital O bject I dentifier ） ,
and is the unique identifier for objects on the internet. It can be used to create persistent link and to cite articles.

Using DOI as a persistent link

To create a persistent link, add「http://dx.doi.org/」「 http://dx.doi.org/ 」 before a DOI.
For instance, if the DOI of an article is 10.5297/ser.1201.002 , you can link persistently to the article by entering the following link in your browser: http://dx.doi.org/ 10.5297/ser.1201.002 。
The DOI link will always direct you to the most updated article page no matter how the publisher changes the document's position, avoiding errors when engaging in important research.

Cite a document with DOI

When citing references, you should also cite the DOI if the article has one. If your citation guideline does not include DOIs, you may cite the DOI link.

DOIs allow accurate citations, improve academic contents connections, and allow users to gain better experience across different platforms. Currently, there are more than 70 million DOIs registered for academic contents. If you want to understand more about DOI, please visit airiti DOI Registration （ doi.airiti.com ）。

Data Source

College of Engineering > Graduate Institute of Mechanical Engineering
Engineering > Mechanical Engineering

Bibliography Management Tool

Related Links

Report an Issue

Search in Library

Full-Text will be available on 2022/07/17 Authorization notice of subscription

田口方法應用於反壓之氣體輔助射出成型的最佳化及模擬分析

Optimization and Simulation for Gas-Assisted Injection Molding with Counter Pressure by the Taguchi Method

吳鑑洲 , Ph.D　　Advisor：鍾文仁　　

繁體中文

氣體輔助射出成型；田口方法；氣體反壓；穿透長度；掏空率；機械強度； gas-assisted injection molding (GAIM) ； Taguchi Method ； gas counter pressure (GCP) ； penetration length ； hollow percentage

Abstract │ Reference (37) │ Altmetrics

Abstract 〈TOP〉

Parallel Abstract 〈TOP〉

Gas-assisted injection molding (GAIM) means that, during the filling stage, gas is injected into short-shot melt. Compressed gas is used as the packing medium to push the melt to form hollow sections and keep the sections from shrinking. This process significantly reduces material usage and costs. Therefore, in terms of the quality of molded parts, requirements are made based on penetration length and hollow percentage. This study applies a gas counter pressure (GCP) mechanism to GAIM in order to control the meltfront action of melt, change the penetration length and hollow percentage. The influence of factor level on the hollow percentage and penetration length was discussed by experiment and simulation analysis through the Taguchi Method.. The influence of process parameters on mechanical strength was also discussed.
The molded part of this study is designed into the paperclip-shaped, and GAIM with a GCP mechanism is adopted in the experiment. Four control factors: counter pressure, melt temperature, gas-assisted pressure, and delay time. This study employs the L9 Orthogonal Array to design an experiment, according to the factor level of each group, the penetration length and hollow percentage of each group were discussed and compared, and a set of verification groups was grouped. The results of the verification group could show that when using the Taguchi method, S/N ratio is particularly significant, the S/N ratio of another quality characteristic can be used to help achieve the goal of optimal factor level combination. 
In this study, we establish the same model as the experimental product in the simulation software. According to the factor level of each group in the above experiment, the simulation results show that the penetration length and the hollow percentage of each group are discussed and compared. Compared with the experimental results, the difference between the two, the experimental verification group for simulation, the results show that the verification group in the penetration length and hollow percentage data are greater than other groups. 
In this study, the mechanical strength of the part is further tested, including the bending test and the impact test. The relationship between the forming conditions and the mechanical strength is discussed. , It was found that the bending strength and impact strength of the near counter pressure were greater than the bending strength and impact strength of far counter pressure. The two tests in the verification group is also greater than the strength of other groups, that is, when the hollow percentage of product is larger, the density of the product will be larger, the relative mechanical strength will be larger

Reference ( 37 ) 〈TOP〉

1. Chen, S. C., Hsu, K. S. and Huang, J. S.,1995, “Experimental Study on Gas Penetration Characteristics in a Spiral Tube during Gas-Assisted Injection Molding,” Industrial & Engineering Chemistry Research, 34(1), pp.416-420.
連結：
2. Chen, S. C., Chien, R. D., Chen, Y. C. and Teng, M. Y.,2004. “Study of Mouldability in Gas-Assisted Injection Moulded Fibre-Reinforced Nylonparts,” Plastics Rubber and Composites, 33(2-3),pp. 113-119.
連結：
3. Chien, R. D., and Chen, S. C., 2004, “Investigations into Surface Visual Quality of Gas-Assisted Injection Moulded Polypropylene Parts,” Plastics Rubber and Composites, 33(4), pp.155-162.
連結：
4. Xia, X. C., Zhang, Q. P., Wang, L., He, S., Feng, J. M., and Yang, M. B., 2014, “Extension of the Orientation Region of High Density Polyethylene Molded by Gas-Assisted Injection Molding: Control of the Thermal Field,” Polymer International, 63(12), pp. 1997-2007.
連結：
5. Xia, X. C., Yang, W., Zhang, Q. P., Wang, L., He, S., and Yang, M. B., 2014, “Large Scale Formation of Various Highly Oriented Structures in Polyethylene/Polycarbonate Microfibril Blends Subjected to Secondary Melt Flow,” Polymer, 55(24), pp. 6399-6408.
連結：

Altmetrics

〈TOP〉

E-mail ：

When an article is available to download, a notice will be sent to your mailbox address.

E-mail ：