938214
| Pregunta | Respuesta |
| What does Lamination do? | Gives additional protection from wear or the weather/moisture |
| What does the cold process of lamination involve? | Self adhesive plastic |
| What does the hot process of lamination do? | Heats the plastic until it sticks to the paper/card |
| What is the most important method of plastic production? | Injection Moulding |
| How does Injection Moulding work? | Plastic granules are heated then under pressure injected into a mould cavity |
| What are the disadvantages of injection moulding? | High mould cost means IM is only suited to mass production |
| What are the advantages of injection moulding? | -Rapid cycle time -Very efficient, no waste material -Objects require no finishing -Uses thermoplastics |
| Describe the process of vaccuum forming | 1-Sheet plastic heated until it goes soft 2- Soft plastic is placed over a mould 3-Mould is raised, then air removed to form a vacuum 4-The plastic is cooled using fans to reduce cycle time |
| Describe the process of line bending? | 1-Plastic placed across a heated element 2-Plastic goes soft and is bent to the desired angle |
| What scale of production is line bending suited to? | Small scale and Batch production |
| Name an advantage of line bending | Simple process |
| What do jigs do to help line bending? | Enable angles/shapes to be made with consistency and accuracy |
| Describe the process of blow moulding | 1-Preform is injection moulded 2-Preform is heated then blown out to final form 3-Final plastic form is allowed to cool then released from the mould |
| Name an advantage of blow moulding | Cycle time is just seconds |
| What does blow moulding manufacture? | Hollow forms such as bottles |
¿Quieres crear tus propias Fichas gratiscon GoConqr? Más información.