echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Biochemistry News > Biotechnology News > Polyplastics uses new detection methods to detect and prevent gas combustion during injection molding

    Polyplastics uses new detection methods to detect and prevent gas combustion during injection molding

    • Last Update: 2021-10-11
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com

    Tokyo, September 15, 2021/PRNewswire/ - Polyplastics Co.
    , Ltd.
    , the world's leading supplier of engineering thermoplastics, has discovered a variety of solutions that can effectively help processors reduce injection molding Gas combustion phenomenon that occurs in the process

    .
    The company uses an effective detection method to analyze this phenomenon and help develop preventive measures.
    This method is called the "Gas Estimation Method During Injection Molding" (GIMIM)

    .

    (Picture: https://kyodonewsprwire.
    jp/prwfile/release/M100475/202109069686/_prw_PI1fl_27qUX9ew.
    jpeg)

    The gas generated during the molding process cannot escape and is compressed, causing the resin surface to heat and burn, which has a serious impact on continuous molding
    .
    The company uses the above-mentioned detection methods to first detect the gas generated by energy loss during injection

    .
    Generally, the nozzle of the injection machine adopts a sharply contracted structure, and this shape will cause energy loss

    .
    Potential solutions include reducing injection speed, using multiple gates or cavities, and increasing the size of gates and nozzles

    .

    In order to prevent uneven heat conduction in the injection molding machine barrel, the test results show that the use of an injection molding machine that is too large relative to the molded product should be avoided, the barrel temperature should be reduced, and the use of mold contact molding should be avoided to prevent heat loss from the mold
    .

    The GIMIM method also found the reason for the clogging of the pores, that is, the complex relationship between the volume of low-boiling and high-boiling substances and the total volume of substances in the decomposed gas
    .
    The solution includes lowering the temperature of the barrel, and often using a rag and other items to wipe off the mold deposits that are slightly stuck to the exhaust port

    .

    Finally, the GIMIM test method can also verify the purging process
    .
    After multiple pieces of material are formed, there is currently no other method to verify the effect of the purging process except for visual confirmation

    .
    GIMIM can detect substances in ppm, so it only takes a few injections of the machine to verify the correctness of the purging process

    .

    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.