Seikei-Kakou
Online ISSN : 1883-7417
Print ISSN : 0915-4027
ISSN-L : 0915-4027
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Volume 6, Issue 2
Displaying 1-3 of 3 articles from this issue
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  • Introdution of “SP Series” for Profile Measurement
    Akira Sato
    1994 Volume 6 Issue 2 Pages 104-107
    Published: February 20, 1994
    Released on J-STAGE: November 18, 2009
    DOIhttps://doi.org/10.4325/seikeikakou.6.104
    JOURNAL FREE ACCESS
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  • Reactive Processing of Polyamide and Polyester
    Yasushi WATANABE, Tomokazu INABA, Takehiko KIKUCHI, Tomohiro KURAMOCHI ...
    1994 Volume 6 Issue 2 Pages 125-134
    Published: February 20, 1994
    Released on J-STAGE: November 18, 2009
    DOIhttps://doi.org/10.4325/seikeikakou.6.125
    JOURNAL FREE ACCESS
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    Reactive processing is an effective technique for the modification of polymers. In this paper we describe the modification of the mechanical properties, the thermal stability and the chemical resistance of polyamides by crosslinking in the single screw extruder. This modification can also be performed by crosslinking between polyamide and polyester in the extruder. The crosslinking agents, diglycidyl terephthalate and diglycidyl isophthalate, were compounded with potassium carbonate anhydride used as a catalyst.
    It was found that the extruded resins were improved in mechanical strength, heat resistance and chemical resistance.
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  • Investigation of a Mold for Evaluating Injection Molding Techniques
    Ceramics Molding Process
    Yasuhiro KIMURA, Jiro MATSUDA, Masayoshi KOIKE
    1994 Volume 6 Issue 2 Pages 135-143
    Published: February 20, 1994
    Released on J-STAGE: November 18, 2009
    DOIhttps://doi.org/10.4325/seikeikakou.6.135
    JOURNAL FREE ACCESS
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    In this paper we investigated the relationship between the basic structure and measurement characteristics that molds should possess in order to evaluate molding techniques. We did so by consider the evaluation of injection molding techniques as transformability, that is, the accuracy of the proportional relationship between the dimensions of the molds and the dimensions of the molded products. Further, a practical application was tested by using an experimental study of the injection molding of ceranics, which was a batch system.
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