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首页> 外文期刊>Journal of natural fibers >Drilling of In-Line Compression Molded Jute / Polypropylene Composites
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Drilling of In-Line Compression Molded Jute / Polypropylene Composites

机译：钻孔在线压缩模塑旋转旋转式旋转式黄麻复合材料

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Compression molding can be used to fabricate polymer composites with long-, short- and intermediate-length fibers. In-line compression molding reduces cycle time through a single-step process in which fibers are directly introduced into the molten polymer in the extruder which is directly molded. It eliminates additional stage of heating and processing and hence is preferred in industries. This paper deals with the influence of fiber type and direction, coupling agent, spindle speed, feed rate, drill material and diameter on delamination and thrust force in in-line compression molded jute/polypropylene. Thrust force was greater in the specimens with 30 wt% long fiber, in longitudinal direction processed without coupling agent and drilling with high-speed steel drill. Delamination was severe in chopped fiber composites, in longitudinal direction processed without coupling agent and with cobalt-high-speed steel tool. Effect of speed, feed, drill diameter and tool material was analyzed using ANOVA, signal-to-noise ratio and Grey relational analysis. Residual tensile strength reduced by 24.7% in the composites drilled using the optimized parameters.
机译：压缩成型可用于制造具有长，短和中间长纤维的聚合物复合材料。在线压缩成型通过单步过程减少了循环时间，其中将纤维直接引入直接模制的挤出机中的熔融聚合物中。它消除了加热和加工的额外阶段，因此在行业中是首选的。本文涉及纤维型和方向，耦合剂，主轴速度，进料速率，钻头和直径在线压缩模塑黄麻/聚丙烯的分层的影响。试样在具有30wt％的长纤维的标本中较大的推力较大，在没有耦合剂的纵向方向上，用高速钢钻钻孔。分层在切碎的纤维复合材料中严重，在没有偶联剂和钴高速钢工具的情况下加工纵向。使用ANOVA，信噪比和灰色关系分析分析速度，进料，钻头直径和工具材料的影响。使用优化参数钻孔的复合材料中的残留拉伸强度降低了24.7％。

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