Method of debinding for injection molded objects
US5380476A · kind A · utility
14Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1991 |
| Grant date | Jan 10, 1995 |
| Priority date | — |
| Expiry date | Sep 16, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A debinding method for use in a process for producing a sintered object, by effecting a debinding pre-treatment by heating the injection-molded object in an atmosphere of reduced pressure at a temperature at which the vapor pressure of the component of the organic binder having the highest vapor pressure does not exceed the pressure of the atmosphere, thereby removing the organic binder in the amount of at least about 18 wt %; and effecting a further debinding heat treatment in which the injection-molded object is heated to and maintained at a temperature higher than the temperature in the debinding pre-treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.