This is a complete project materials for final year students in engineering on Construction Of Cellophane Sealing Machine from chapter one to five
ABSTRACT
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The construction of the cellophane sealing machine was carried out. The project started with an encompassing review of the various methods of heat sealing film packages. The machine can be used in sealing both low, medium and high-density cellophane.
The product has a heating element, which converts electrical energy to heat energy, which converts electrical energy to heat energy, which is utilized in the sealing of the cellophane. It has an efficiency of about 90% with a reasonable degree of accuracy.
The major components of the machine included 24 – 30 volts transformer, heating element, electrical cables, plywood, tape (paper, Teflon, black) lever machine, seconds time, micro – switch and on/off indication bulb.
The machine was relatively cheap and compares favourably with imported types of the same capacity. The total cost of production amounted to the sum of ten thousand, one hundred naira only (N10,100.00).
TABLE OF CONTENTS
CHAPTER ONE
INTRODUCTION
1.1 APPLCIATION OF POLYETHENE (CELLOPHANE)
TYPES OF SEALING MACHINES
OTHER USES OF CELLOPHANE
CHAPTER TWO
2.0 LITERATURE REVIEW
HISTORICAL DEVELOPMENT OF CELLOPHANES
PRODUCTION OF CELLOPHANE MATERIALS
PHYSICAL PROPERTIES OF POLYOLEFINS
SEALING OF ILMS
THE STRUCTURAL FORMULAR OF LOPE
CHAPTER THREE
3.0 MATERIAL SELECTION
GENERAL PROPERTIES OF ENGINEERING MATERIALS
METALS AND ITS PROPERTIES
FERROUS METALS
PROPERTIES OF STEEL
NON FERROUS METALS
GLASS AND ITS PROPERTIES
WOOD AND ITS PROPERTIES
TYPES OF WOOD
MATERIAL OF CONSTRUCTION FOR PROJECT
ANALYSIS OF OTHER MATERIALS USED IN CONSTRUCTION
CHAPTER FOUR
ENGINEERING METHOD
4.1 ENGINEERING DRAWING
COLLECTION OF MATERIALS
DIMENSIONING AND MARKING OUT
CUTTING AND WELDING
FILING OF EDGES
BUILDING OF THE BOX
PLACING OF FURMICA
TRANSFORMER CONSTRUCTION
ELECTRICAL CONNECTION
CHAPTER FIVE
DISCUSSION
CHAPTER SIX
CONCLUSION
CHAPTER SEVEN
RECOMMENDATION
APPENDIX
REFERENCES
COST ESTIMATION
CHAPTER ONE
INTRODUCTION
Cellophane sealing machine is basically used for cellophane and nylon materials sealing. It is a machine that uses the principle of light, heating materials or element to seal two impressed surfaces or even more impressed surface depending on the nylon usage and application.
The packaging phenomenon was previously done by the use of paper bags but as time went on, this method changed to cellophane packaging system and till date, it has been growing. This cellophane can be obtained by the process of polymerization of organic compounds to form polyethene.
With the invention or introduction of technology, different types of packaging systems have been deviced, of which the most highly used is the cellophane packaging and sealing. Although, the use of time in packaging is still in use. Cellophane packaging excels since it can be easily obtained, fabricated, as well as store materials of different shapes and sizes.
The properties of poly ethane that made it to be highly useful in all aspects of packaging are inertness, high resistance of acid attack, water, base, organic chemicals, low coefficient etc polyehtene is used in packaging goods like ice cream, treated water, beverages, and biscuits, pharmerceutical products and some other fungicides like cocoabre sandus, copper sulphate (blue stone), ridomil plus etc.
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