Shrinkage of plastic raw materials : a comparative study of mould
المؤلفون المشاركون
Ali, al-Fakki E.
Bilal, Abd al-Salam A.
Abbas, Ramzi A.
المصدر
Journal of Science and Technology : in Engineering and Computer Sciences
العدد
المجلد 18، العدد 3 (31 ديسمبر/كانون الأول 2017)، ص ص. 54-59، 6ص.
الناشر
جامعة السودان للعلوم و التكنولوجيا عمادة البحث العلمي
تاريخ النشر
2017-12-31
دولة النشر
السودان
عدد الصفحات
6
التخصصات الرئيسية
الملخص EN
In plastic engineering, the mould design is considered a complex process or an art, due to the polymers used their differences and changes in properties, as well as other factors like shrinkage of the materials.
An Important point in mould design considerations is to use real and actual values of shrinkage in the early stages of design to avoid any design errors and produce an economic template.
Some containers produced locally leaks the liquids, which causes inconveniences for the users.
This problem is attributed to unspecified data of raw material shrinkage.
In this work, five samples made of polypropylene PP113 bought from the local market (Khartoum petrochemical company), and another five samples made of low-density polyethylene (LDPE), produced by SABIC of Saudi Arabia were moulded using ISO 294 test mould of dimension 60x60x2mm.
The shrinkage for the test samples was measured according to test specifications.
The averages shrinkage for samples made of PP113 was found to be 1.88, and that for LDPE was found to be 0.84.
The experimental results were compared to a simulation results obtained using Visi-12.2, and MoldFlow-Mpi Ver.
5.1 software, which often used for studying and analyzing the behavior of plastic materials in moulds cavities.
For Visi-12.2 software, the longitudinal shrinkage was found to amount of 1.25, for PP113 material, and 2.50 for LDPE material.
For MoldFlowMpi Ver.
5.1 software, the longitudinal shrinkage was found to be 1.003 for PP113 material, and 2.21 for LDPE material.
The study concluded that, there is a notable difference between the values of shrinkage obtained practically and that built in the software’s libraries, and thus for precision parts practical shrinkage tests are inevitable.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Ali, al-Fakki E.& Bilal, Abd al-Salam A.& Abbas, Ramzi A.. 2017. Shrinkage of plastic raw materials : a comparative study of mould. Journal of Science and Technology : in Engineering and Computer Sciences،Vol. 18, no. 3, pp.54-59.
https://search.emarefa.net/detail/BIM-796994
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Ali, al-Fakki E.…[et al.]. Shrinkage of plastic raw materials : a comparative study of mould. Journal of Science and Technology : in Engineering and Computer Sciences Vol. 18, no. 3 (2017), pp.54-59.
https://search.emarefa.net/detail/BIM-796994
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Ali, al-Fakki E.& Bilal, Abd al-Salam A.& Abbas, Ramzi A.. Shrinkage of plastic raw materials : a comparative study of mould. Journal of Science and Technology : in Engineering and Computer Sciences. 2017. Vol. 18, no. 3, pp.54-59.
https://search.emarefa.net/detail/BIM-796994
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 58-59
رقم السجل
BIM-796994
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر