57 0

초미세발포 플라스틱 기어에 관한 연구(I) - 초미세발포 플라스틱 기어의 공정설계 -

Title
초미세발포 플라스틱 기어에 관한 연구(I) - 초미세발포 플라스틱 기어의 공정설계 -
Other Titles
Injection Molded Microcellular Plastic Gear (Ⅰ) - Process Design for the Microcellular Plastic Gear -
Author
정태형
Issue Date
2005-05
Publisher
대한기계학회
Citation
대한기계학회논문집 A, v. 29, No. 5, Page. 647 - 654
Abstract
This research proposes a process design of injection molded microcellular plastic gears for enhancing the fatigue strength/durability and accuracy of the gears applying thermodynamic instability to microcellular foaming process. To develop the injection molded plastic gears by way of microcellular process, it is absolutely necessary the following two process design. The first is microcellular foaming process for enhancing the strength/durability of plastic gears. To be microcellular process succeeded, based on the microcellular principle, mechanical apparatus is designed where nucleation and cell growth are to be generated renewably. The second is the counter pressure process which is mainly for improving the tooth surface roughness and the accuracy of microcellular gears. For the former process, screw, nozzle and gas equipment are newly designed, and for the latter, counter pressure by nitrogen gas is intentionally brought about into mold cavity when injecting plastic gears. Based on the proposed process design, using gear mold, experiments of injection molding show that, in internal space of plastic gears, microcellular nuclear cells less than 5㎛ in diameter have been generated homogeneously via electron microscope photos.
URI
http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00592732&language=ko_KRhttps://repository.hanyang.ac.kr/handle/20.500.11754/110677
ISSN
1226-4873
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE