| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 봄 (04/09 ~ 04/10, 고려대학교) |
| 권호 | 29권 1호, p.135 |
| 발표분야 | 고분자 가공/블렌드 |
| 제목 | Powder injection molding using water-soluble binder |
| 초록 | Powder injection molding (PIM) is an expanding technology for large volume production of small parts with complex shape which would be expensive and/or difficult to produce by other methods. PIM process is usually composed of mixing the organic binder with the metal powder (or ceramic), injection molding, debinding and sintering. In this study, water-soluble binder including polyethylene glycol (PEG) was used as a binder. To increase the mechanical properties and easy processability, two different polymers were added to PEG. Stainless steel powder with irregular shape and the average particle diameter of 8 µm was employed. The phase behavior of PEG and two polymers was studied by using turbidity measurement and optical microscopy. The isothermal crystallization of the binder was investigated with a differential scanning calorimeter (DSC) to find how fast the green part is ejected from an injection molder. The viscosity of the green part was measured by Advanced Rheometrics Expansion System (ARES) and the capillary rheometer. This work was supported by Korea Institute of Industrial Technology Evaluation and Planning. This work was also supported by National RND Program (M1-0214-00-0230) by MOST. |
| 저자 | 송민석, 박민수, 김진곤 |
| 소속 | 포항공과대 |
| 키워드 | PIM; binder |
