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New Adaptive Process Control for auto components from Krauss Maffei

Supplier: HBM Plastics & Packaging Technologies
18 September, 2015

Krauss Maffei have recently installed an injection moulding line including in-mould labeling (IML) process equipped with their new APC (Adaptive Process Control) technology

Krauss Maffei  have recently installed an injection moulding line including in-mould labeling (IML) process equipped with their new APC (Adaptive Process Control) technology at KH Foliotec of Germany, where it is used to manufacture premium quality interior surface parts for the automotive industry. 

The line consists of a Krauss Maffei CXZ 500-2000/750 that is being used to create two-component entertainment console panels in a 1+1 injection mould incorporating a PC film with a scratch resistant coating and decorated in black as inserted into the mould. The transparent grey PC component for the display is injected first and the mould then rotates and the black PC-ABS for the case body follows in the same cavity.

The glass like surface requirement requires the mould to be cleaned several times during a shift to remove any particulates. These continual disruptions affect melt temperature and make it the ideal application for the Krauss Maffei APC technology - which evens out the fluctuations in the injection moulding process by adapting and continuously modifying the changeover point between injection and holding pressure for each individual shot by utilising online measurements of the melt viscosity.

The use of the APC has resulted in a part weight variation from 0.16 grams to only 0.03grams when restarting after cleaning.

Daniel Muller, Divisional Manager of KH Foliotec said that it has also significantly reduced the rejection rates in their production.

Krauss Maffei is represented in Oceania by HBM Plastics Technologies.