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E-raamat: Plastic Film and Foil Web Handling Guide [Taylor & Francis e-raamat]

(Film Handling Solutions, Circleville, Ohio, USA)
  • Formaat: 192 pages, 1 Tables, black and white; 90 Illustrations, black and white
  • Ilmumisaeg: 29-Oct-2002
  • Kirjastus: CRC Press Inc
  • ISBN-13: 9780429133480
  • Taylor & Francis e-raamat
  • Hind: 267,74 €*
  • * hind, mis tagab piiramatu üheaegsete kasutajate arvuga ligipääsu piiramatuks ajaks
  • Tavahind: 382,48 €
  • Säästad 30%
  • Formaat: 192 pages, 1 Tables, black and white; 90 Illustrations, black and white
  • Ilmumisaeg: 29-Oct-2002
  • Kirjastus: CRC Press Inc
  • ISBN-13: 9780429133480
Written to assist anyone who works with webs directly or indirectly, The Plastic Film and Foil Web Handling Guide is a handbook for diagnosing and correcting problems with web handling technology. Covering web handling fundamentals, process-related technologies, troubleshooting, and solutions, it includes sufficient technical information to identify and correct defects in rolls (of film or foil). Readers will appreciate this unbiased look at web handling that also serves as a counterpoint to information from equipment suppliers.

The text presents guidelines on:

Roller alignment in machines Tensioning of webs Use of web spreading and guiding devices Use of razor slitters Shear knife slitters Edge trim removal Trim disposal Management of electrostatic charges on webs Waste storage equipment

Winding technology is presented that addresses gage variation issues, cores and mandrels, vibration, speed issues, web thickness issues, web strength issues, coated web issues, laminated web issues, clear film issues, winding tension profile issues, and lay-on roller issues. A guide for troubleshooting web-handling problems and a glossary of terms for quick reference is also provided.
Section one
Web stability
3(18)
Imaginary resistive tension member concept
3(2)
Alignment requirements
5(2)
Structure and stresses affect film web behavior
7(10)
Tension limitations
17(2)
Tension limitations with temperature
19(2)
Tension isolation
21(12)
Nip roller tension isolators
21(5)
Three-roller nip systems
26(1)
``S'' wrapped driven rollers
27(3)
Vacuum rollers
30(1)
Vacuum belts
31(2)
Web tension measuring and control devices
33(8)
Web tension sensing
33(3)
Dancer-roller systems
33(3)
Load-cell rollers
36(1)
Mass-free dancer sensing
37(4)
Web spreading
41(10)
Increased diameter under web edges
41(2)
Concave rollers
43(1)
Bowed spreader rollers
44(2)
Air-bearing spreading
46(1)
Angled opposed-edge nip rollers
46(1)
Flexible-leaf spreading rollers
47(4)
Web guiding/steering
51(8)
Lateral shifting of the unwind and windup stands
51(4)
Pivoting steering/guide rollers
55(4)
Static management
59(8)
Charge buildup theory
59(3)
Static removal from webs
62(5)
Section two
Slitting technology
67(32)
Razor-blade slitting
67(9)
Bell or raised edges
67(3)
Blade angles and configuration
70(1)
Blade thickness and contamination generation
71(1)
Blade oscillation
72(1)
Slitting tension effects
73(1)
Shear knife slitting
74(1)
Shear knife setup
74(2)
Overspeed settings
76(2)
Other slitting techniques
78(1)
Trim disposal
79(5)
Trim chopping and shredding
84(4)
Automatic trim and bleed trim thread up
88(1)
Pneumatic trim disposal system
89(10)
Shred- and chop-conveying pipes
91(1)
Bypass air separation around grinder
92(2)
Functions of the grinder
94(1)
Sizing the blower
95(1)
Fundamentals of the cyclone separator
95(1)
Storage bins
96(3)
Winding technology
99(44)
Affects of gage/caliper variation
99(2)
Gage band randomization
101(5)
Windup oscillation on casting machines
102(2)
Unwind oscillation on converting machines
104(2)
Cores and mandrels
106(3)
Cores
106(2)
Mandrels
108(1)
Rigidity and vibration
109(5)
Lay-on roller issues
114(9)
Optimum thread path around lay-on roller, effects of eccentricity
114(1)
Lay-on roll dynamics
115(8)
Lay-on roll parameters
123(4)
Winding tension/profiles by products and processes
127(3)
Clear film issues
130(1)
Winding with edge knurls
131(1)
Laminated web issues
132(3)
Web spreading during winding
135(1)
Issues with coated low-strength films
135(4)
Web strength issues
139(1)
Speed issues
139(4)
Section three
Troubleshooting web-handling problems
143(14)
Wrinkle problems
143(3)
Web-steering problems
146(1)
Pucker problems on laminated webs
147(1)
Scratch problems
148(2)
Curl problems
150(1)
Web flatness problems
150(2)
Tin canning/MD wrinkles
152(1)
An MD wrinkle theory
152(2)
TD wrinkles
154(1)
Slip pimples
155(1)
Snail trails and other defects
155(1)
Static management
156(1)
Glossary 157(12)
Appendix 169(4)
Index 173


William E. Hawkins