FABRICATION OF CANDLE MOULD WITH TWENTYFOUR (24) HOLES
By
Author
Presented To
Department of Chemical Engineering
ABSTRACT
The candle mould has twenty four (24) holes which could produce twenty four (24) quality candle sticks
Aluminum, a non ferrous metal was used as the construction material for the mould the type of casting technique used was green sand mould method.
In the process of moulding the pattern was placed in the flask which contained the green sand. The flask was turned upside down and the reverse side of the pattern was formed. This part is called the positive part, the other part of the pattern formed on the moist sand is called the negative part, the two parts were then joint together to form the cope and the drag.
A gate or opening was provided for the pouring of the molten aluminum into the mould. Gases and fumes were able to escape through the vents.
It was ensured that the molten aluminum filled all parts of the mould with the least delay. All part of the candle mould were machined after casting to get a perfect exterior and interior surface finish.
The fabrication of the candle mould cost seven thousand (N7,000) naira for both material and labour.
TABLE OF CONTENTS
Title page
Dedication
Acknowledgement
Abstract
Table of content
CHAPTER ONE
1.0 Introduction
CHAPTER TWO
2.0 Literature review
2.1 Theory of casting processes in the construction of the candle mould
2.2 Properties of sand mould
CHAPTER THREE
3.0 Materials of fabrication
3.1 Selection of aluminum as a construction raw material
3.2 Treatment of aluminum prior to casting.
3.3 Fabrication test
CHAPTER FOUR
4.0 Plug preparation
4.1 Fabrication procedure
4.2 Materials use for the contraction of candle mould
4.3 Purification of aluminum
4.4 Constructions method
4.5 Machining operation
4.6 Safety precaution
CHAPTER FIVE
5.0 Method of operation
5.1 Quality control measures
5.2 Care and maintenance of the candle mould
CHAPTER SIX
6.0 Cost analysis
CHAPTER SEVEN
7.0 Conclusion
7.1 Recommendation
Appendix, References
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