Method for determining a value for the description of the compression of a moldable material
US10589450B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2016 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Mar 4, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2945/76287
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method for determining at least one parameter for the description of the compression behavior of a material processed in a molding machine, at least a part of the processed material is introduced into a mold cavity via a distribution system and a gate, and the processed material solidifies in the mold cavity. A compression test is performed in which a volume storing the material is modified and a measurement of the resulting pressure modification is conducted or a pressure applied onto the material is modified and a measurement of the resulting modification of the volume is conducted. A parameter for the description of the compression behavior is calculated based on the result of the compression test by using a mathematical model. The compression test is conducted when the gate is at least substantially solidified or when the hot runner is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.