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WetCoating Technology is widely usedin industries nowadays. Dip coating is one of the techniques used in Wet Coating Technology. The device required to implement the technique is called dip coater. The conventional dip coating technique used to deposit sol-gel thin films on flat substrates is well established and accepted because of its simplicity and the high coating quality that can be obtained. Advanced Material Research Centre (AMREC) SIRIM Berhad as a collaborator provided the dip coater for the project. With the current dip coater, the thin=film produced has several problems including wavy surfaces and non-uniformity of the thickness. The dip coater control box is only limited to two speed controls which are 0.5 mm/s and 1.5 mm/s. The purpose of this project is to improve the performance ofAMREC dip coater by designing a new improved dip coater. Preliminary work of the project involved evaluatingthe performance of current dip coater by analyzing the coatings produced using several characterization tools. Examination of how dip coating process works lead to the identification of what causes thepoorquality of the coating. Factors that contributed to the problems are vibration produced by the sample movement and type of the motor choosen for the dip coater. It was found that the vibration of the system can be reduced when the nut follower pitch was reduced. Circuit of the system has been redesigned to allow the change of the motor movement, control the speed and providing various speed for dipping process.

Item Type: Final Year Project
Academic Subject : Academic Department - Electrical And Electronics - Pervasisve Systems - Digital Electronics - Design
Subject: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Engineering > Electrical and Electronic
Depositing User: Users 2053 not found.
Date Deposited: 30 Sep 2013 16:55
Last Modified: 25 Jan 2017 09:46
URI: http://utpedia.utp.edu.my/id/eprint/7619

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