Abstract
The aim of this
research is to investigate permanent shape deformations of seals produced by
different material properties using in the vehicle engine thermostats and to
find out the best one among the investigated materials. Considering problem, the
seals produced have high permanent shape deformation rate. This has been indicated
that the EPDM rubber used was not produced due to necessary production
conditions. Application of the ASTM D395 test has been decided to find out the
best production conditions. Four different types of rubber, which were called
as X, A, B, C, have been used as a sample. In these types, X was produced by
the sulphur vulcanisation and others produced by the peroxide vulcanisation.
When the samples prepared was tested, the samples, which were produced by the
peroxide vulcanisation, were the long lasting as compared with the samples,
which were produced by sulphur vulcanised. Due to result of these tests, the
vulcanisation system has changed in the rubber production and then the rubber
type with peroxide vulcanisation has begun to be used.
Keywords
Elastomer Rubber Residual Deformation Aging Relaxation Peroxide Vulcanisation Sulphur Vulcanization EPDM
References
- Anonim, Elastomers and Rubbers, Machine Design, sayfa:61(1989)
- Arevyan Arden, Kalıcı Deformasyonun Sızdırmazlık Üstündeki Etkisi, sayfa:167-174 I. Ulusal Hidrolik Pnömatik Kongresi ve Sergisi (1999)
- ASTM D395 – 03 Standard Test Methods for Rubber Property—Compression
- Chandrasekaran, V.C Rubber as a Construction Material for Corrosion Protection, sayfa: 4,98,99 Wiley (2010)
- Gent Alan N. , Engineering with Rubber How to Design Rubber Components, sayfa: 321 HANSER 2001
- Heywood, J., Internal Combustion Engine Fundamentals, McGraw-Hill, 1988.
- http://what-when-how.com/automobile/forced-circulation-water-cooling-system-automobile/
- http://www.calismaprensibi.com/motor-sogutma-sistemleri-nasil-calisir.html
- https://www.muhendisbeyinler.net/motor-sogutma-sistemleri/
- SAVRAN, H. Ö. Elastomer Teknolojisi I, Kauçuk Derneği Yayınları, İstanbul, sayfa:93-99, (2001)
- Visnic , Thermostat, Thy Days are Numbered, Wards AutoWorld, vol.,sayfa: 53-54, 2001
- Wagner John R., Srinivasan Venkat , Dawson Darren M. , Marotta Egidio E. Smart Thermostat and Coolant Pump Control for Engine Thermal Management Systems, SAE TECHNICAL PAPER SERIES 2003-01-0272, doi: 10.4271/2003-01-0272
- Wilson Thomas N. , A Comparison of Various Polymers in Select Organic Acid Technology (Oat) Coolants, SAE TECHNICAL PAPER SERIES 2000-01-1095, doi: 10.4271/2000-01-1095
- Wilson Thomas N. , Co Wesley G. The Effects of Contaminated Engine Coolants on the Service Life of Elastomers, SAE TECHNICAL PAPER SERIES 2001-01-1180, doi: 10.4271/2001-01-1180
- Zou X., Jordan J. A., Shillor, M., A Dynamic Model for a Thermostat, Journal of Engineering Mathematics, sayfa: 291-310, 1999
Abstract
Bu çalışmada, araç motor termostatlarında
kullanılan farklı malzeme özellikleri ile üretilen contaların kalıcı şekil
değişimlerinin araştırılması ve incelenen malzemeler arasında en iyi olanın ortaya
çıkarılması amaçlanmıştır. İncelenen problem, üretilen contaların
kalıcı deformasyon oranının yüksek olmasıdır. Bu durum kullanılan EPDM kauçuğun
uygun üretim parametrelere göre üretilmediğini göstermiştir. Uygun parametreyi
bulmak için ASTM D395 testi uygulanmasına karar verilmiştir. Numune olarak
X,A,B,C grubu olarak tanımlanmış dört tane kauçuk grubu kullanılmıştır. Bu
gruplardan X sülfür diğerleri peroksit vulkanizasyonu ile üretilmiştir. Hazırlanan
numuneler teste tabi tutulduğunda peroksitle vulkanize edilmiş numunelerin,
sülfürle vulkanize edilmiş numunelere göre daha dayanıklı olduğu görülmüştür.
Test sonucuna göre kauçuğun üretiminde vulkanizasyon sistemi değiştirilerek
peroksitli vulkanize kauçuk türü kullanılmaya başlanmıştır.
References
- Anonim, Elastomers and Rubbers, Machine Design, sayfa:61(1989)
- Arevyan Arden, Kalıcı Deformasyonun Sızdırmazlık Üstündeki Etkisi, sayfa:167-174 I. Ulusal Hidrolik Pnömatik Kongresi ve Sergisi (1999)
- ASTM D395 – 03 Standard Test Methods for Rubber Property—Compression
- Chandrasekaran, V.C Rubber as a Construction Material for Corrosion Protection, sayfa: 4,98,99 Wiley (2010)
- Gent Alan N. , Engineering with Rubber How to Design Rubber Components, sayfa: 321 HANSER 2001
- Heywood, J., Internal Combustion Engine Fundamentals, McGraw-Hill, 1988.
- http://what-when-how.com/automobile/forced-circulation-water-cooling-system-automobile/
- http://www.calismaprensibi.com/motor-sogutma-sistemleri-nasil-calisir.html
- https://www.muhendisbeyinler.net/motor-sogutma-sistemleri/
- SAVRAN, H. Ö. Elastomer Teknolojisi I, Kauçuk Derneği Yayınları, İstanbul, sayfa:93-99, (2001)
- Visnic , Thermostat, Thy Days are Numbered, Wards AutoWorld, vol.,sayfa: 53-54, 2001
- Wagner John R., Srinivasan Venkat , Dawson Darren M. , Marotta Egidio E. Smart Thermostat and Coolant Pump Control for Engine Thermal Management Systems, SAE TECHNICAL PAPER SERIES 2003-01-0272, doi: 10.4271/2003-01-0272
- Wilson Thomas N. , A Comparison of Various Polymers in Select Organic Acid Technology (Oat) Coolants, SAE TECHNICAL PAPER SERIES 2000-01-1095, doi: 10.4271/2000-01-1095
- Wilson Thomas N. , Co Wesley G. The Effects of Contaminated Engine Coolants on the Service Life of Elastomers, SAE TECHNICAL PAPER SERIES 2001-01-1180, doi: 10.4271/2001-01-1180
- Zou X., Jordan J. A., Shillor, M., A Dynamic Model for a Thermostat, Journal of Engineering Mathematics, sayfa: 291-310, 1999
Details
| Primary Language | Turkish |
|---|---|
| Subjects | Engineering |
| Journal Section | Research Articles |
| Authors | |
| Publication Date | April 30, 2019 |
| Submission Date | April 9, 2018 |
| Acceptance Date | January 9, 2019 |
| Published in Issue | Year 2019 Volume: 24 Issue: 1 |
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