 Brenda Chamulak will become company president and CEO effective June 30 as part of a planned leadership transition.

Brenda Chamulak will become Tekni-Plex‘spresident and CEO effective June 30 as part of a planned leadership transition

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Kunststoffverarbeitung: Verfahren

Verpackungstechnik

Logistik

Kunststoffverarbeitung

Dienstleistungen

Lohnfertigung

Kunststoff-Verpackungsmaschine

Kunststoffverarbeitung: Maschinen und Komponenten

Sondermaschinen

Tekni-Plex Names New President and CEO

The consumables required for In-vitro diagnostics are manufactured in a production process that is subject to high requirements in terms of precision and quality, but also the complex cleanroom manufacturing environment. This has implications for the entire plant technology – especially toolmaking.

64-cavity tool for pipette tips. The hot runner system is balanced across all cavities

Strategic Approach through Classification according to Product Groups

Spritzgießwerkzeuge

Werkzeuge für die Kunststoffverarbeitung

Werkzeug- und Formenbau

Werkzeug-, Formen- und Modellbau

Medizinprodukte

Medizintechnik

Mold Platforms for IVD Consumables

SPS – Industrial Automation Fair (SIAF) Guangzhou and Asiamold, the first China fairs to be hosted by Messe Frankfurt in 2021, concluded on 5 March after three days, with the visit number increasing an impressive 27% to 63,968.

Sensorik für Werkzeugmaschinen

Industrie 4.0

Industrie 4.0 für die spanende Fertigung

Verfahren für die additive Fertigung

SIAF Guangzhou and Asiamold Conclude Successfully

The ZKW Group manufactures premium lighting systems for automotive customers. In order to be able to produce trouble-free and in permanently high quality in the injection molding process, several hundred temperature control units from HB-Therm are also used, among others.

ZKW manufactures both complete lighting systems and the necessary components, such as diffusers and lenses or the associated electronics

The ZKW Group Manufactures Innovative Lighting Systems for the Automotive Industry

Temperiergeräte

Gießanlagen

Temperiertechnik

Kfz-Leuchten, Beleuchtung

Elektronik

Kfz-Systeme

KFZ-Zulieferer

Where Night Becomes Day

When no injection molder could be found who could process the company‘s own electroluminescent foils to a high standard in series production, the Swiss lighting technology specialist Lumitec, with the help of its machine supplier Arburg, took over the injection compression molding technology virtually „overnight“.

The panels are installed in sports car seats and glow as a welcome when the car door is opened. The assembly elements are subsequently ultrasonically welded to the component

Lumitec Masters Injection-Compression Molding thanks to Arburg Application Technology

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

Spritzprägen

A Luminous Greeting

The design of parts and components made of fiber-reinforced composites needs to take the coefficient of thermal expansion into account because it determines the extent to which a material changes in length when heated or cooled. Neglecting this quality criterion can have far-reaching consequences

Thermomechanical analyzer TMA 402 F3 Hyperion Polymer Edition

The Coefficient of Thermal Expansion Can Help to Ensure Product Quality

Messtechnik

Prüfen von Kunststoffen

Thermische Mess- und Prüfverfahren

Qualitätssicherung

Qualitätssicherung Kunststoff

A Change of Length Has Consequences

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

Schaumspritzgießen

Künstliche Intelligenz für die Qualitätssicherung

Industrie 4.0 für die Qualitätssicherung

Schnecken und Plastifiziersysteme

Spritzgießmaschinen

A Special Process that Is Becoming a Sustainable Normal Case

Pipette tips feature a challenging wall thickness/length ratio, an inner geometry that is key for analysis results, and a tip opening just a few tenths of a millimeter wide. They have been in extremely high demand during the coronavirus pandemic, which is why the mold construction and hot runner specialist Männer has developed a mold with an innovative cluster concept.

At the Männer test center in Bahlingen, Germany: an injection mold for manufacturing pipette tips, shown here in operation. Automation of the system is currently being set up

Pipette Tips: Männer Presents a Mold with Replaceable Clusters

Heißkanalsysteme

Komponenten für die Kunststoffverarbeitung

Maintenance During (Nearly)  Uninterrupted Production

Space-saving machine concepts for demanding production environments are booming. A real-life example of a slit micro-membrane for pharmaceutical glass vials shows how intelligent machine functions make an important contribution to supporting machine operators and continuous documentation of the production process.

Injection molding and slitting of an LSR membrane for a glass-vial closure for pharmaceutical products make high demands on precision

KraussMaffei Delivers a Customized Solution for LSR Processing

Automatisierungszellen

Automatisierungstechnik

Mikrospritzgießen

Silikonkautschuk

Kunststoff Werkstoffe

Kautschuk / Elastomere

Transparency in Production

RKT has been manufacturing plastic products for medical and industrial technology for 45 years. Discs for the rapid analysis of multi-resistant hospital germs are a lighthouse project within the sophisticated product portfolio.

 A six-axis robot picks the molded parts out of the mold under an inert gas atmosphere and conveys them into the cleanroom for further processing and packaging

High-Tech Production of Life-Saving Disks for Fast Analysis of Dangerous Germs

Reinraumsysteme / -technik

An All-Round Winner

Closing the circle: a tool manufacturer with a long track record in injection molding is taking particle foam processing to the next level. A new machine and highly efficient molds are intended to streamline the technology and make it interesting even for injection molders.

Managing Director Stefan Hofmann (left) and Project Manager Johannes Schütz in front of the prototype of the new “<a href="http://Bead.Machin">Bead.Machin</a>e”, the development of which started a good two years ago © Hofmann

On the Launch of a Molding Machine for Particle Foams

Doriat, Clemens, Dr.

Innovationsentwicklung

Wirtschaft

Innovationen und neue Technologie

Partikelschäumen

Schäumen / Reaktive Verarbeitung

The Impulse Machine

In the injection molding of engineering plastics, mold temperature control consumes more than one third of the total energy input. A novel technology offers the opportunity to reduce this continuous major cost factor – and eliminate hotspots.

Fig. 1. The temperature control units have the highest energy share in the injection molding process

Source: M. Schläger et al [2]; graphic: © Hanser

Reduced Energy Consumption and Shorter Cycle Times due to Structurally Integrated  Heat Pipe Mold Cores

Cooling with Heat Pipes

Thermoplastic foam injection molding enables lower melt viscosity due to the addition of blowing agent, which is also attractive for the production of thin-walled packaging. Since injection molded packaging is often decorated through in-mold-labeling, it is important to understand how the blowing agent affects adhesion between the film and the molded part to avoid bubble formation at the interface.

Selecting the right IML film is critical for visually appealing molded parts

How Does the Addition of Blowing Agent Affect Adhesion and Molded Part Properties?

Properly Foamed with IML

The new injection-molding machine Engel duo speed combines productivity and efficiency with short cycle times in a high clamping force range. The two-platen machine is thus making inroads into a range of packaging applications that were formerly the domain of toggle machines.

If you want a somewhat larger sized pail: the duo speed large machine was developed specifically for manufacturing pails and transport boxes

Engel Duo Speed Expands the Machine Portfolio for Packaging Applications

Spritzgießmaschinen, allgemein

High-Speed Machine with a  Small Footprint

The resource-economical determination of an optimized operating point in injection molding is still a challenge. Machine learning offers great potential for re-using knowledge from a flow simulation that has already been generated.

Significant reduction of the effort for determining the optimum operating point by machine learning

Machine Learning: Combining Simulation and Experimental Test Data

Spritzgießsimulation

Software

Simulation

DOE-Software

Qualitätsmethoden

Industrie 4.0 für die Kunststoffverarbeitung

Digitaler Zwilling

Quicker Evaluation of the Optimum Operating Point

Chinese Company Investigates Cracking Behavior

Cracked screws are a frequent cause of customer complaints. The Chinese manufacturer EJS has identified the source of the problem.

As a screw manufacturer, E.J.S Industry Co., LTD, Ningbo, China (EJS), often receives complaints like this: “We have received your screws. Are you sure your people have carried out an inspection? Look at this crack, I think anyone can see that it is damaged. How can we install such a screw on our machine? How fast can you ship us a replacement? We need one immediately. Please let me know.”

When the first 125 hard-faced screws were ready for inspection, the employees at EJS noticed that there were cracks. How could that happen? Was it caused by poor temperature control, inferior bimetallic alloy powder, poor quality base steel, or process management? To find out why, the company scheduled a number of tests, and applied numerous labels to the product for later identification. After an extensive process of trial and error, EJS at last identified the cause of the cracks and their relationship.

Hard-faced screws are normally processed by a PTA welding machine. The energetic plasma arc generates temperatures of over 1000  °C to fuse the alloy powder and weld in the flights one by one until the screw is complete. This process inevitably results in repeated thermal expansion and contraction due to the big difference between the temperature of 1000 °C and the ambient temperature (5 to 40 °C).

Since 2015, EJS has used a special furnace to maintain the hard-faced screws at high temperature for several hours after PTA welding, which helps it to reduce the numbers of cracks. Unfortunately some cracks still remain. Is there any way to get rid of them?

As a quality-oriented company, EJS has tried everything to avoid cracks. However, it is not possible to completely exclude the possibility of cracks forming. The company has consulted senior engineers, checked with experts, analyzed together with experienced production managers and sought advice from long-term customers in different countries. In the end, the Chinese company accepted the fact that cracks are inevitable for some alloys on big sizes, because no cracks means soft flights. There are some alloys for which micro cracks cannot be avoided. They have always been present. Moreover EJS has found that

<ul><li>severe cracking is acceptable if the flights remain intact;</li><li>long cracks are acceptable if the flights remain intact;</li><li>wide cracks are acceptable if the flights remain intact;</li><li> it is acceptable if the cracks are regular in one direction;</li><li>however, it is unacceptable if the cracks cause peel-off of the facing.</li></ul>

Using these simple questions, customers can check whether their screws are okay or not. In case of doubt, the experienced EJS staff will be happy to help. (ed.)

E.J.S. Industry Co. Ltd.  

https://www.ejs-screwbarrel.com

Ausgabenartikel

During production, large temperature differences sometimes occur, which are one reason for crack formation

EJS has investigated the cracks in various comprehensive analyses. The result: the cracks are very small and do not reduce the quality and durability of the screws

According to the company, the cracks are not production defects

According to EJS cracks can occur on the screws, especially with large screw diameters

Name - Hauptartikel

<b>E.J.S Industry Co., Ltd,</b> Ningbo, China, is specialized in producing, repair and rebuilding screws, barrels and components for plastic product manufacturers, rubber product manufacturers, extruder and injection molding producer. With 25 years experience they are aim to supply screws barrels with more wear resistance and corrosion resistance.