东北大学学报（自然科学版）

东北大学学报（自然科学版） ›› 2013, Vol. 34 ›› Issue (12): 1768-1772.DOI: 10.12068/j.issn.1005-3026.2013.12.023

• 机械工程 • 上一篇    下一篇

玻璃纤维短切刀具结构参数和材料的优化研究

周继烈，冯楚凡   

  1. (浙江大学机械工程学系，浙江杭州310027)
  • 发布日期:2013-07-09
  • 通讯作者: 周继烈
  • 作者简介:周继烈(1958-)，男，浙江杭州人，浙江大学副教授.
  • 基金资助:
    浙江省重点科技创新团队建设项目(2009R50008).

Optimization Research on the Tool Structure Parameters and Material of the Glass Fiber Short Cutting〓

ZHOU Jilie， FENG Chufan   

  1. Department of Mechanical Engineering， Zhejiang University， Hangzhou 310027， China.
  • Published:2013-07-09
  • Contact: FENG Chufan
  • About author:-
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摘要： 玻璃纤维短切原丝的生产因对于专用刀具研究不足而生产效率低下、生产成本高.为了改变这一现状，对玻璃纤维短切专用刀具进行研究.首先基于玻璃纤维的特性提出了玻璃纤维的弯曲切断模型，然后对刀具的切入角和切入深度进行了探讨，并基于模型对短切刀具的楔角参数进行了深入研究，得出了楔角参数的优选范围并从企业多年的生产试验数据中得到了验证.研究发现楔角参数的进一步优化与刀具材料有关，因此分析了玻璃纤维短切刀具材料的成分、组织和性能，并据此选用SKS(之后用国产CrWMn材料替代)制成短切刀具与常用的T12A刀具进行短切实验比较，发现CrWMn刀具的使用寿命是碳素钢刀具的5倍，可以极大地提高原丝的生产率.

关键词: 玻璃纤维, 短切, 弯曲切断, 切入角, 楔角

Abstract: The production of short glass fiber had low efficiency and high cost because of the lack of study on special tool. To change this situation， the special tool was researched. Firstly， a bendcutting model of the glass fiber was established. Then， the cutting depth and angle were discussed theoretically. The edge angle of the tool was lucubrated to get the edge selection range and the range was further verified by the years of production test. It showed that the further optimization of the edge angle was relevant with the tool material and the ideal properties of the tool material were analyzed. SKS was selected for a shortcutting test to compare with the T12A tool. It is found that the service life of CrWMn tool is 5 times longer than general carbon steel tool. The productivity of the short glass fiber is greatly improved.

Key words: glass fiber, short cutting, bendcutting, cutting angle, edge angle

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