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Molding temperature control enhancement for transfer molding process via additional wire heater

Mohd Syafiq, Zainal (2016) Molding temperature control enhancement for transfer molding process via additional wire heater. Masters thesis, Universiti Teknikal Malaysia Melaka.

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Molding temperature control enhancement for transfer molding process via additional wire heater.pdf - Submitted Version
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Abstract

In transfer molding process,molding temperature is the most vital parameter that needs to be control as tight as possible so that the optimum molding temperature is attained during transfer molding.Each type of mold compound requires different optimum molding temperature depending on their requirement.However to control the molding temperature is not an easy task as during molding process mold chase temperature cycle kept continuously fluctuating due to heat loss by surrounding throughout molding process.Thus a good mold chase temperature controller is a big advantage in order to obtain a quality molded product.However the Low Stress Mold Compound (LSMC) type mold compound has a very small temperature operating window by referring from the viscosity curve versus molding temperature.The optimum mold temperature for this mold compound is at 190± 3°C.Current molding machine mold chase temperature control capability is at ±5°C,therefore a new innovation method is needed on current molding machine to overcome this issue by introducing the additional wire heater near to the mold cavity surface to have better control of the mold chase temperature.With this innovation,the mold chase temperature is controlled at ± l.5°C which complies with the operating window of LSMC mold compound.By doing this,losses due to the temperature instability during molding process are reduced significantly.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Automatic machinery,Electronic controllers,Temperature control
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Library > Tesis > FKP
Depositing User: Mohd. Nazir Taib
Date Deposited: 03 Apr 2018 03:56
Last Modified: 03 Apr 2018 03:56
URI: http://eprints.utem.edu.my/id/eprint/20455

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