Show simple item record

dc.contributor.authorKankaew, Prasongen_US
dc.contributor.authorประสงค์ ก้านแก้วen_US
dc.date.accessioned2020-09-07T01:38:49Z
dc.date.available2020-09-07T01:38:49Z
dc.date.issued2020-09-07
dc.identifier.issn1906-0432
dc.identifier.urihttp://repository.rmutp.ac.th/handle/123456789/3328
dc.descriptionวารสารวิชาการและวิจัย มทร.พระนคร, 12 (2) : 148-157en_US
dc.description.abstractThe shrinkage of plastic was caused by the shape of the product and the type of plastic used in the injection. The plastic shrinkage difference was resulted from the temperature used in melting, the injection speed, mold cooling and different injection surroundings. These led to unknown exact value of plastic shrinkage and the trial and error work has been done. As a result of trial and error work, the injection products were not in the determined size. This research aims to find the percentage of plastic shrinkage according to standard test ASTM D955 from (Amorphous Thermoplastic) (Acrylonitrile Butadiene Styrene, ABS). The findings showed that square specimen size 60x60x2 mm, measured from vertical perpendicular to flowing direction, the shrinkage was at 0.86%, the shrinkage was at 0.59% when measured from flowing direction and the thickness expanded at 20%. For the rectangular specimen size 12.7x127x3.2 mm, measured from vertical perpendicular to flowing direction, the expanding was at 0.16%, the shrinkage was at 0.88% when measured from flowing direction and the thickness expanded at 14.86%. The circular specimen size 100x3.2 mm, the shrinkage was at 1.26 when measured from vertical perpendicular to flowing direction, the shrinkage measured from flowing direction was at 0.82%, and the thickness expanded at 13.23%en_US
dc.description.sponsorshipRajamangala University of Technology Phra Nakhonen_US
dc.language.isothen_US
dc.subjectPlasticen_US
dc.subjectพลาสติกen_US
dc.subjectContractionen_US
dc.subjectการหดตัวen_US
dc.subjectproducten_US
dc.subjectผลิตภัณฑ์en_US
dc.titleA study of shrinkage percentage acrylonitrile butadiene styrene based on the ASTM D955 standard test methoden_US
dc.title.alternativeการศึกษาหาเปอร์เซ็นต์การหดตัวของพลาสติก อะคริโลไตรล์บิวทาไออีนสไตรีน โดยยึดตามาตรฐาน ASTM D955 standard test methoden_US
dc.typeJournal Articlesen_US
dc.contributor.emailauthorprasong.k@rmutp.ac.then_US
dc.contributor.emailauthorarit@rmutp.ac.then_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record