頁籤選單縮合
題 名 | ABS射出成型件縫合線強度之探討=Study of Mechanical Strength of Weld-line in ABS Injection Molding Parts |
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作 者 | 陳詞章; 郭南村; 陳俊吉; 陳俊生; | 書刊名 | 龍華科技大學學報 |
卷 期 | 20 民94.12 |
頁 次 | 頁35-41 |
分類號 | 467.4 |
關鍵詞 | 縫合線; 薄殼射出成型; 迴歸分析法; Weld-line; Thin-wall injection molding; |
語 文 | 中文(Chinese) |
中文摘要 | 隨著塑膠產品的發展越來越輕薄短小,塑膠件的強度與品質的要求及其相關的影響因子也越來越受重視,因此縫合線的強度成為射出成型件的主要研究課題。本文以ABS工程塑膠來探討縫合線對於射出成型件品質與強度的影響,針對ABS在射出成型時,在不同厚度與不同製程條件下所產生的有縫合線與吳縫合線成品,進行符合ASTM D638標準的拉伸試驗與機械性質的研究。並利用迴歸分析法,以Kim與Suh所建立的高分子縫合線鍵結強度理論模型,並考慮厚度、料溫、模溫、保壓壓力、射出速度等參數,針對真正的成型狀況,推導出一新的半經驗公式。在研究中的實驗結果可知製程參數對成品的強度及鍵結度的影響性,發現當料溫、模溫、射出速度增加或保壓壓力減少時,試片的鍵結度急拉伸強度會有增加的趨勢。 |
英文摘要 | As the trend of getting smaller products becomes more popular, the demand on strength and quality for product has also become more important. The weld-line is the weakness on the strength for injection plastic products, therefore has attracted many researchers' attentions. This thesis focuses on ABS to discuss how the strength of the weld-line is affected in Thin-wall Injection Molding. ABS is used to inject test pieces of ASTM standard, with and without weld-line, at various injection conditions and thicknesses. In our study, the model for polymers proposed by Kim and Suh was also modified to establish an empirical correlation for strength with weld-line. This correlation uses the data of tested strength and methods of regression analysis to take thickness of test pieces, melt temperature, mold temperature, packing pressure and injection velocity as independent factors. It is expected that this correlation can be used to predict to predict the strength of product with weld-line. ABS has similar trend as other plastic material; that is increase on the melt temperature, mold temperature and injection velocity increase the strength of the test pieces at the weld-line, while the packing pressure has reverse effect. |
本系統中英文摘要資訊取自各篇刊載內容。