Patent · US Active

Method for determining an actual volume of an injection moldable compound in an injection molding process

US11213986B2 · kind B2 · utility

0Cited by

4References

14Claims

0Family size

Assignee

Kraussmaffei Technologies GMBH · DE

Inventors

Reinhard Schiffers · Munich, DE
Stefan Moser · Hallbergmoos, DE
Stefan Kruppa · Munich, DE
Matthias Busl · Karlsfeld, DE

Key dates

Filing date	Oct 5, 2016
Grant date	Jan 4, 2022
Priority date	—
Expiry date	Jul 31, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C2945/76933
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method for determining an actual volume Vr of an injection-moldable compound during an injection-molding process is disclosed. The injection-moldable compound is introduced into at least one cavity of the mould. The method includes the steps of: a) determining a theoretical volume Vt from process variables at least during a filling phase of the injection-molding process, b) determining and/or measuring at least one value for at least one compound pressure pM, c) selecting a material-specific compression k (p), corresponding to the value of pM, of the injection-moldable compound, and d) calculating an actual volume Vr by taking into account the compression k (p).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.