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Handbook of molded part shrinkage and warpage /
The handbook explains in plain terms why moldings shrink and warp, shows how additives and reinforcements change the picture, sets out the effect of molding process conditions, and tells why you never can have a single ""correct"" shrinkage value. But that's not all. The han...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Norwich, NY :
Plastics Design Library/William Andrew Pub.,
©2003.
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| Colección: | PDL handbook series.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Pressure-Volume-Temperature (PVT) Behavior
- Recrystallization and Stress Relief
- Mold Shrinkage (<24 hours)
- Post Mold Shrinkage (>24 hours)
- Material
- Crystalline vs. Amorphous
- Anisotropic Behavior
- Effect of Fillers
- Effect of Pigments
- Moisture Absorption
- Low Warp Materials
- Part Design
- Geometry & Thickness
- Sink Marks
- Mold Design
- Gate Design and Location
- Runner and Mold Cooling Design
- Part Ejection
- Processing
- Mold and Injection Temperature
- Holding Pressure and Time
- Injection Speed and Pressure
- Molded In Stress
- Annealing/Stress Relieving
- Post Mold Fixturing
- Factors Affecting Post Mold Shrinkage
- Pitfalls to Avoid
- Gas Assist and Multi Component Molding Options
- Computerized Shrinkage and Warpage Analysis
- How Does It Work?
- Does It Work?
- How Much Does It Cost?
- How and When to Use It
- Shrinkage and Warpage in Specific Applications
- Material Specific Data Collection of Hundreds of Graphs and Tables
- Shrinkage versus:
- Wall Thickness and Part Geometry
- Mold and Injection Temperatures
- Holding and Injection Pressures
- Time at Various Temperature and Humidities
- Filler Content
- PVT Curves
- Shrinkage Comparison for Thousands of Grades
- Discussions on Mold Shrinkage, Post Mold Shrinkage and Warpage
- Glossary
- Index.