EFFECTS OF EXTRUSION BLOW MOLDING INTERNAL COOLING ...

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1.6 Statistical Methods Means for variables measured on conventional and on Fasti bottles were compared with two sample t-tests. Analyses of residuals showed this to be reasonable for the comparisons. Commonly, p-values of less than or equal to 0.05 are regarded as indicative of (statistical) significance. However, with large sets of multiple comparisons the level is made more stringent. For example, with the set of four or eight dimensional comparisons 0.01 is used and with a set of sixty-four thickness measurement points 0.001 is used. 18
2 – EXPERIMENTAL DESIGN AND TEST METHODS 2.1 Materials and Setup 2.1.1 Conventional Air Setup Setup of the conventional blow settings was accomplished with the help of Bekum America. The settings are set so that the container is formed in the shortest amount of time possible that would still allow complete formation of the container. The cycle time of this setup as shown in Table 3 is 9.51 seconds. The parison program was designed to create approximately equal wall thickness throughout the wall and heel of the container. These set points are saved in the machine as “16OZ ROUND THESIS” along with the parison program. 19
Page 1 and 2: EFFECTS OF EXTRUSION BLOW MOLDING I
Page 3 and 4: Copyright by Kirk Alan Valko 2004
Page 5 and 6: TABLE OF CONTENTS LIST OF TABLES ..
Page 7 and 8: LIST OF TABLES Table 1. Fasti Cost
Page 9 and 10: Figure 24. Assembly Drawing........
Page 11 and 12: 1 - INTRODUCTION AND LITERATURE REV
Page 13 and 14: The process of extrusion blow moldi
Page 15 and 16: and dropped onto the conveyor, the
Page 17 and 18: Internal cooling is the process of
Page 19 and 20: pin is entering the bottle finish.
Page 21 and 22: 1.3.3 Costs Total cost of the unit
Page 23 and 24: Figure 7. Machine Surround Before F
Page 25 and 26: Table 2. Effect of Decreased Crysta
Page 27: 1.4.2 Wall thickness In addition to
Page 31 and 32: to determine the connection between
Page 33 and 34: 2.2 Experimental Methods 2.2.1 Samp
Page 35 and 36: Average temperature, checked by the
Page 37 and 38: Table 5. Bottle Body Dimension Tole
Page 39 and 40: D 2659, 1995). Twenty samples from
Page 41 and 42: Figure 15. Compression Data Example
Page 43 and 44: Figure 16. DSC Sample Pan Crimper T
Page 45 and 46: 3 - DATA AND RESULTS 3.1 Cycle time
Page 47 and 48: Table 7. Dimensional Test Result Co
Page 49 and 50: 3.3 Compression Strength Compressio
Page 51 and 52: Table 10. Percent Crystallinity of
Page 53 and 54: Table 12. Percent Crystallinity at
Page 55 and 56: wall thickness. Compression strengt
Page 57 and 58: performance tests. It would be desi
Page 59 and 60: 5.8 Optical Microscopy Optical micr
Page 61 and 62: 51 APPENDIX A Dimensional Results T
Page 63 and 64: 53 Table 15. Dimensional Test Resul
Page 65 and 66: Figure 18. Conventional Wall Thickn
Page 67 and 68: Figure 22. Fasti Wall Thickness 2 0
Page 69 and 70: Table 18. Compression Test Results
Page 71 and 72: Bekum Blow Molder Operating Instruc
Page 73 and 74: a) “SP1”(set point one) tempera
Page 75 and 76: i) Only one function may be used at
Page 77 and 78: ) Use Screwdriver to turn catch abo
Page 79 and 80:
Figure 25. Detail 01 - Adaptor 69
Page 81 and 82:
Figure 27. Detail 03 - Cooling Slee
Page 83 and 84:
Figure 29. Detail 05 - Tip 73
Page 85 and 86:
APPENDIX E Fasti Setup Experiment E
Page 87 and 88:
Data Analysis Figures 31, 32, and 3
Page 89 and 90:
Figure 31. Main Effects Plot for Fa
Page 91 and 92:
BIBLIOGRAPHY ASTM Standard D2463-95
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