Car windows can be framed more economically and more securely with a novel thermoplastic elastomer based on styrene block copolymers (TPS), as opposed to rubber seals. Advantageously, the typically low viscosity of TPS leads to reduced glass breakage and allows thinner glass to be used. 

Novel Thermoplastic Elastomer with Good Flow Behavior and High Surface Finish 

Kunststoff Werkstoffe

Kautschuk / Elastomere

Elastomer-Spritzgießen

Messgeräte für Viskosität

Oberflächenveredelung

Flexible Auto-Glass Framing 

The lighting industry is going through a technological change – from light bulb via energy saving lamp to the light emitting diode (LED). Especially for high-power LED the limit of the optical materials is reached, which affects the durability significantly. Transparent liquid silicone rubber offers a promising alternative because of its good thermal properties and high UV-stability.  

LED-Lenses Made of Liquid Silicone Rubber for Light Applications in the Automobile 

Spritzgießen

Optik

Kunststoffe

Silicone in Automotive Headlights 

With the increasing digitalization of injection molding, new process parameters are coming under the spotlight. Engel, together with the Polymer Competence Center Leoben and Montan University Leoben, Austria, is using machine-learning methods to explore the potential of mold breathing for quality assurance in rubber injection molding. This research project was supported by the partner company SKF Sealing Solutions Austria.

The collection and interpretation of process data supports producers of safety-relevant rubber products in ensuring a constant high quality

Automatic Process Monitoring with iQ Clamp Control and Machine Learning

Kunststoffverarbeitung: Verfahren

Steuerungen (Hardware und Software)

Automatisierungstechnik

Industrie 4.0 für die Qualitätssicherung

Industrie 4.0

Mess-, Steuer- und Regelgeräte

Qualitätssicherung

Qualitätssicherung Kunststoff

Industrie 4.0 für die Kunststoffverarbeitung

Machine Learning für die Qualitätssicherung

Rubber Injection Molding with  Quality Recognition

Plastic manufacturer Dow has announced the launch of more sustainable polyolefin elastomers. The new brand will help the footwear industry to unlock a lower carbon footprint and develop more sustainable products.

Crocs is the first footwear brand to go-to-market with this new material technology.

16:9

Thermoplastische Elastomere

Thermoplaste

Walking on Bioplastics

Trelleborg Sealing Solutions launches its latest lightweight thermoplastic composite bearing.

Trelleborg’s enhanced dual-layer bearing with a low-friction modified PEEK layer that reduces friction and increases wear performance for use in bearing, wear ring, and bushing applications.

Lightweight Thermoplastic Composite Bearing

Dupont is adding new, more sustainable grades to the Hytrel TPC-ET product family. Hytrel Eco B is based proportionately on renewable raw materials.

Messe K-Kunststoffmesse

kunststoffe-international.com

Kunststoffe, biobasiert

Biokunststoffe

kunststoffe.de

TPC with up to 72 Percent Biomass Content

Engel Austria GmbH, Schwertberg, Austria has developed a new injection moulding machine for the processing of all common rubber compounds and other elastomer materials. The new Engel flexseal 300 T horizontal machine with a clamping force of 3,000 kN has been designed specifically for the needs of international O-ring and flat gasket manufacturers and sets new standards for the industry with its features. 

Injection Molding Machine for O-Rings and Flat Gaskets 

Spritzgießmaschinen

Flexseal 300 T 

At the Deutsche Kautschuk-Tagung DKT 2015 in Nuremberg, Germany from June 29th to July 2nd, Arburg GmbH + Co KG, Lossburg, Germany, presented a compact manufacturing cell for removal suction cups with a threaded brass insert. The system is centered around a vertical injection molding machine (type: Allrounder 275 V) fitted with an elastomer processing package. 

Insert Molding with EPDM 

Inserttechnik

Automated Elastomer Processing 

Industry 4.0, lightweight construction, and combined technology – that is how one could summarize the current trends and challenges that have been the subject of countless injection molding developments during the past years. In their advance releases for the K exhibition, exhibitors clearly indicate that they are continuing along these lines. 

Injection Molding between Industry 4.0, Lightweight Construction, and Combined Technologies 

Verbundwerkstoffe / Werkstoffverbunde

Spritzgießwerkzeuge

Spritzgieß-Sonderverfahren

Mehrkomponenten-Spritzgießen

Spritzprägen

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

Hybridtechnik

Schaumspritzgießen

Reinraumsysteme / -technik

Trip to a Known Destination 

Despite the proven superiority of high-tech rubber injection molding machine models, robust lean-tech alternatives still have a large body of support, even though the available methods for increasing rubber plastication performance have already been successfully used for over ten years. This is demonstrated with a practical report at the North-German rubber and silicone processor Präzisa in Ratekau near Lübeck. 

The Rubber Injection Molding Machine Manufacturer LWB Steinl Is Staging a Sporty Comparison between Two Injection Molding Concepts 

Steuern, Regeln

Manufacturing Quality Parts Faster 

The announcements in the field of injection molding give the impression that the developments of recent years are continuing. These include the increasing digitalization of injection molding production, as well as highly integrated production cells that combine very different competencies. The spotlight shines not only on the machinery, but rather on optimum system solutions for integrating molds and individually configured peripheries in the digital and the real world. 

Fakuma 2018: Injection Molding Networked and Integrated 

Handling, Handhabungstechnik

ERP-Systeme

Treibmittel

Temperiertechnik

The Communicative Machine 

The Dow Chemical Company (Dow), Midland, USA, has expanded its elastomer technology platforms and capabilities, including a  range of Silastic silicone and fluorosilicone rubber technologies. For example the Silastic LTC 9400 Liquid Silicone Rubber (LSR) product line is a low-temperature-cure (LTC) LSR solution that enables short cure times at low temperatures and features processing benefits including improved rheology for fast low-pressure injection. According to the manufacturer, that creates new opportunities for part design by enabling overmolding of low-melting-point thermoplastics, actives and electrical components. These LSRs also increase robustness by reducing sensitivity to temperature gradients. 

Low-Temperature-Cure Silicone  

Silikone

Extended Elastomer Product Line from Dow 

The integration of individual parts to a multifunctional assembly is one of the important innovation potentials of plastic injection molding, e. g. the production of glass window modules for car rear doors, as practiced at Henniges Automotive. They consist of the glass pane, a web strip, and fastening clips, which are overmolded by a TPE frame to a ready-to-install assembly. For the manufacturing the automotive supplier relies on vertical C-frame injection molding machines from LWB Steinl. 

Assembly of Higher Integrated Car Window Modules through Injection Molding 

Montage-Spritzgießen

KFZ-Zulieferer

From the Vertical Machine into the  Car Door 

LSR optics offers a wide range of applications due to the optical brilliance, the possibility to produce undercut shapes not to mention the competitive pricing. The adhesive surface which is almost impossible to clean however makes the LSR parts vulnerable against contaminations. This characteristic however limits the possible application fields. To overcome this limitation Wilhelm Weber has partnered with Fraunhofer IFAM in a recent research project.

Half of the board was treated with VUV while the other half has covered. Afterwards norm dust was applied onto the board uniformly and than knocked off (once) in upright position. The dust sticks to the untreated areas while falls of the treated areas

Surface Modification of LSR Components Hinders Adhesion of Dirt

LED / OLED-Systeme und Faseroptik

Lichttechnik

Oberflächentechnik

Silikonkautschuk

No Chance for Dust and Contaminations

Once again, the K 2019 in Düsseldorf, Germany, lived up to its claim to be the leading trade show for plastics technology. At least in the field of injection molding, there were exciting global innovations to see – if you looked closely.

Fig. 1. Smart Operation – the machine is operated with only four buttons (© KraussMaffei)

Injection Molding Trends at K 2019

Smart Factory

Energieeffizienz

Mikrospritzgießen

Spritzgießmaschinen, allgemein

Kunststoffverarbeitung: Maschinen und Komponenten

Werkzeuge für die Kunststoffverarbeitung

Fließpressen

Handling, Handhabungstechnik für die spanende Fertigung

Spritzgießsimulation

Software

Simulation

Linearroboter für die Kunststoffverarbeitung

Industrieroboter

Montagetechnik

Knickarmroboter

Co-Injektion (Barriere-/Sandwich-Spritzgießen)

Hybrid-Spritzgießen (Metall / Kunststoff)

Ressourcenmanagement

Produktion

Technical Excellence thanks  to Digital Assistance

Perfluoroelastomers for Semiconductor Sealing

Trelleborg Sealing Solutions showcased two new additions to its Isolast PureFab FFKM material range at Semicon Europa 2022.

Trelleborg Sealing Solutions showcased two new additions to its Isolast PureFab FFKM material range at Semicon Europa 2022 in Munich, Germany.

The first addition, Isolast PureFab JPF40, is an ultra-high temperature perfluoroelastomer (FFKM) developed for demanding subfab applications and thermal processes, including rapid thermal processing (RTP), atomic layer deposition (ALD), and oxidation. The material reportedly offers unrivalled compression set performance at operating temperatures from +200 °C/+392 °F to +300 °C/+552 °F. This ensures sealing integrity for critical processes, withstanding peak application temperatures over +325 °C/+617 °F, the highest temperature capability of an elastomer material.

According to the company, the second addition called Isolast PureFab JPF22 is an excellent all-round FFKM seal with superior chemical compatibility suitable for a wide range of semiconductor applications. The material offers excellent resistance to wet process chemicals and steam, as well as amine-based ALD precursors.

Chris Busby, Semiconductor Segment Director at Trelleborg Sealing Solutions, says: “With extreme temperatures and increasingly more aggressive chemical precursors used in semiconductor environments, reliable sealing solutions are essential to prevent premature failure.”

Trelleborg Sealing Solutions Germany GmbH 

https://www.tss.trelleborg.com/de

At Semicon Europa 2022 Trelleborg Sealing Solutions showcased two new additions to its Isolast PureFab FFKM material range.

2022-11-29 Trelleborg Produkt

Halbleiterfertigung

Elektronik

issue 04/2023

issue 03/2023

issue 02/2023

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