The “HPS-Physical Foaming” screw model improves the plasticizing rate for physical foam injection molding by up to 30 percent.

The new “HPS-Physical Foaming” screw is universally applicable and offers improved plasticizing performance.

16:9

Spritzgießen

Kunststoffverarbeitung: Verfahren

Schaumspritzgießen

Schnecken und Plastifiziersysteme

Kunststoffverarbeitung: Maschinen und Komponenten

Spritzgießmaschinen

30 Percent Higher Plasticizing Rate

ARBURG is one of the world‘s leading manufacturers of plastic processing machines. The product portfolio encompasses ALLROUNDER injection moulding machines with clamping forces of between 125 and 6,500 kN, the freeformer for industrial additive manufacturing, plus robotic systems, customer and industry-specific turnkey solutions, and further peripheral equipment.

ARBURG GmbH + Co KG  

https://www.arburg.com

Abkantmaschinen, -pressen, -bänke

Blechbearbeitungsmaschinen

Maschinen für die spanlose Fertigung

Additive Fertigung

Anlagen für die Additive Fertigung

Antriebselemente

Lineartechnik

Maschinenelemente

Ceramic-Injection-Moulding, CIM

Condition Monitoring für die Qualitätssicherung

Industrie 4.0 für die Qualitätssicherung

Industrie 4.0

Energieeffizienz

Handling, Handhabungstechnik

Automatisierungstechnik

Kennzahlen

Qualitätsmanagement

Kennzahlen, Q-Leitstand, Q-Monitor

Qualitätssicherung

Kühlelemente, aktive

Kühlkörper

Elektromechanik

Software

Management-Informationssysteme

Medizintechnik

Mehrfarben-Spritzgießmaschinen

Mikrobauteile

Montage

Montagetechnik

Mikrospritzgießen

Mischer

Kunststoff-Aufbereitung

NE-Metalle

Metall Werkstoffe

PUR-Schäummaschinen

Schäumen / Reaktive Verarbeitung

Partikelschäumen

Produktionssystem

Rapid Manufacturing

Rapid Prototyping

Reinraumsysteme / -technik

Reinraumtechnik

Betriebsausrüstung / Betriebsmittel

Reporting-Tools

Rückverfolgbarkeit, Traceability

Schnecken und Zylinder

Simulation

Spanneinrichtungen

Systemperipherie

Spritzgieß-Zubehör und Einzelteile

Stetigförderer

Fördertechnik

Logistik

Trockner

Vorbeugende Instandhaltung für die spanende Fertigung

Industrie 4.0 für die spanende Fertigung

In cars, LEDs are taking over ever more applications and are increasingly used as differentiating design elements. In order to ensure a high luminous efficiency even with complex geometries and elongated structures, Engel has developed a new plasticizing process for manufacturing light guides.

The transformation of the automobile also strongly affects the vehicle interior. Light is gaining in importance as a design element

The Principle of Starve Feeding: Injection Molding Ultrahigh Purity Light Guides

Farbmessgeräte

Messtechnik

Optische Mess- und Prüftechnik

Spritzgießmaschinen, allgemein

LED / OLED-Systeme und Faseroptik

Lichttechnik

Less Granules  Stock Means More Quality

The required screw diameter can be ascertained on the basis of the shot volume. The formula for the average residence time can be used to estimate the degree of utilization and the thermal load on the material.

Various shapes of plasticizing screws. The correct design is approached in several steps

Part 1 of the Series Discusses the Basic Design of a Plasticizing Unit and the Correct Choice of Injection Unit

All about Plasticizing Screws

To be able to carry out the practical test in a resource-saving manner, the designers use simulation tools to assess the screw geometry. What is important here is explained using a 3-zone screw as an example.

The screw geometry is finely optimized in several calculation steps until the desired result is achieved. Subsequently, test screws are manufactured in original size and tested in practical tests with various material types

20:7

Part 2 of the Series Deals with Basic Methods for Evaluating a Screw Geometry

Lightweight parts, energy-saving processing or the practice of combining several process steps into one can all be subsumed under one current buzzword: sustainability. A technology that is highly promising in this regard is thermoplastic foam injection molding.

In physical foam injection molding, a blowing gas is injected into the polymer melt during plasticizing

New Developments in Thermoplastic Foam Injection Molding

Künstliche Intelligenz für die Qualitätssicherung

A Special Process that Is Becoming a Sustainable Normal Case

In the second part of the series, calculations were carried out on the throughput behaviour, pressure build-up capacity and the melting process on the basis of an exemplary geometry. These results are now to be examined in more detail and subsequently optimized.

Through empirical tests and simulation-supported test series, a screw can be designed in a tailor-made manner for the respective application 

Part 3 of the Series Deals with the Tests to Optimize the Screw Geometry

Spritzgießsimulation

Over past months, many in-house workflows and development processes have slowed down and also changed. Nevertheless, time has not stood still, also not in injection molding technology. The debate and development have been shaped by two themes: digitalization and the circular economy. Below are some examples of developments and projects that underpin this trend.

Two displays are seamlessly integrated into the continuously 3D-formed instrument panel

Innovative Injection Molding in Times of Pandemic

Steuern, Regeln

Mehrkomponenten-Spritzgießen

Folientechnik (IMD, IML, FIM, u.a.)

Digitale Transformation

Wirtschaft

Innovationen und neue Technologie

Spritzgießwerkzeuge

Werkzeuge für die Kunststoffverarbeitung

Biokunststoffe

Kunststoff Werkstoffe

Spritzgieß-Sonderverfahren

Nachhaltigkeit

Umweltmanagement

Industrie 4.0 für die Kunststoffverarbeitung

Machine Learning / Künstliche Intelligenz für die spanende Fertigung

Kunststoff-Recycling

Lasermarkieren

Oberflächentechnik

Laserbearbeitungen

Inline- / Online-Messsysteme

Qualitätssicherung Kunststoff

Kreislaufwirtschaft

There Is More beyond the Horizon

Which injection molding machine is the right one for which application? Below we will demonstrate why performance is not always performance, but physics is always physics.

Direct drives such as planetary roller screw drives are very precise and durable

How Feed Rate, Injection Volume and Filling Time Correlate with Injection Unit Performance

Kugelgewindetriebe

Getriebe

Elektrische Antriebe für Spritzgießmaschinen

Antriebe

Elektrische Antriebe

Elektromechanische Maschinen

A Question of Class

On the test stand: the University of Paderborn, Germany, investigated conventional and new concepts for extrusion screws in order to achieve higher throughputs while retaining machine sizes. The energy-transfer screws, a further development of the wave screw, scored particularly well.

Fig. 1. Unwound channel geometry of a double-wave (left) and an energy-transfer screw (right).

New Concepts for Extrusion Screws

Extrusion

On the Wave to Successful Mixing

The mixing effect of several wave screws compared with two barrier screws and a 5-section screw was investigated at the University of Paderborn.

The Wave Must Be Right

The iQ motion control assistance system from Engel optimizes the acceleration phases of mold movements and thus shortens cycle times.

The pressure to work efficiently is huge, especially in the packaging industry. The production of thin-wall containers clearly shows the potential of  iQ motion control to shorten cycle times.

iQ motion control Shortens Cycle Times in High-Performance Injection Molding

How about a Little Bit Faster?

The ComoNeoPredict process monitoring system is a proven option for ensuring the required quality in the injection molding production of medical devices.

In the medical technology industry, a high and validated product quality is inevitable.

Werkzeuginnendrucksensoren

Sensoren / Messwertaufnehmer

When Validated Quality Is Not a Competitive Advantage

At Fakuma 2023, Kistler will show what smart process monitoring can already achieve today, and which trends are set to shape the industry‘s evolution in the coming years.

With the AkvisIO IME production data software, users can evaluate data from their injection molding processes as the basis for optimization.

Mikrosensoren

Messe Fakuma

kunststoffe-international.com

kunststoffe.de

Sensoren

Lagertechnik

Piezosensoren

The Machine Becomes the Data Source

Susanne Schröder will become editor-in-chief of the magazines Kunststoffe and Kunststoffe international on December 1, 2020. The current editor-in-chief Dr. Karlhorst Klotz will leave the company by mutual agreement.

Susanne Schröder will become editor-in-chief of the magazines Kunststoffe and Kunststoffe international on December 1, 2020. Until now she has been editor-in-chief of the trade journal FORM+Werkzeug

Werkzeuge für Leichtbauwerkstoffe

Präzisionswerkzeuge

Tiefziehwerkzeug

Dienstleistungen

Werkzeug-, Formen- und Modellbau

Werkzeugüberwachung

Toolmanagement

Werkzeugwechselsysteme, Spritzgieß

Werkzeug- und Formenbau

Modulare Werkzeugsysteme

Absaugungen für Werkzeugmaschinen

Absaugvorrichtungen

Fluorkunststoffe

Thermoplaste

Werkzeugverwaltungssoftware

Prüfen von Kunststoffen

Presswerkzeuge, Kunststoff

Werkzeugreinigung, Kunststoffe

Standardkunststoffe

Kunststoffverarbeitung

Lohnfertigung

Technische Kunststoffe

Füllstoffe für Kunststoffe

Kunststoff

Bauwesen

Baustoffe

Kunststoffhandel

Handel

Betriebstechnik für Kunststoffverarbeitung (Peripherie)

Kunststofffasern

Verstärkungsstoffe

Hochleistungskunststoffe

Change in the Chief Editorial Office of Kunststoffe

Freedom from Internal Defects  for Brilliant Images

New “optimelt sequence” Software Reduces Microdefects in Optical Components

Injection molding of optical components is subject to strict requirements, including freedom from internal defects. Tomography analysis methods can identify even microdefects in the order of 20 µm. The main cause of these very small defects are gases that enter the melt either from the material or the environment. With new software, Engel intends to reduce gas inclusions during the processing of transparent plastics and ensures a consistent high melt quality.

Eyeglasses, cameras, or car headlamps – optical plastic components play an important role in our day-to-day lives. To ensure that plastics for optical applications can be processed in the highest quality, Engel Austria GmbH has been conducting intensive research for many years. The starting point are the developments in the smartphone industry. Ever since these multifunctional devices arrived on the scene, the performance of their cameras has increased continuously. The pictures have become ever sharper and the compensation for lighting conditions ever better. While the sensor resolution of the first camera-capable cell phones was in the range of 0.3 megapixels at the beginning of the 2000s, the latest models from leading smartphone manufacturers now offer over 100 megapixels. In addition, the number of installed camera modules is increasing steadily to further increase the quality via software-supported combining of images. In view of the fact that individual camera modules in turn consist of a large number of optical lenses, it becomes clear how important the quality of these tiny components is.

High-performance transparent plastics, particularly polycarbonate (PC) and cycloolefin copolymers (COC), have superseded glass in this market segment. The crucial factors are the lower weight, reduced energy input for processing and the resulting lower manufacturing costs. In addition, it is possible to reproduce both very complex and very fine structures by injection molding.

In the manufacture of optical lenses, there are principally two risks of defects:

<ul><li> first, on the surface, where streaks or other defects can occur;</li><li> second, the lens volume facilitates to the formation of small defects such as cavities.</li></ul>

While, in standard injection molding, the formation of cavities can be prevented by optimizing the process control, the risk of other small defects often state greater problems for the user. Particularly critical are so-called “microvoids,” microdefects of below 20 µm, which cannot be made visible via conventional light microscopy investigations. Engel therefore first had to find and evaluate a reliable measurement method for these kinds of defects, in order to subsequently optimize the injection molding process.

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