Its product properties make the new grade the material of choice for large and complex applications in the household and electronics industries and contributes to improving their carbon footprint. Large parts for air conditioning devices, vacuum cleaners and coffee machines are just some examples of targeted applications.

Quality management and quality assurance is essential in the medical industry as companies manufacture highly sensible products. Regulations such as Good Manufacturing Practice (GMP) in the US and Medical Device Regulations (MDR) in Europe require companies to comply with strict and ever more extensive standards. They have to keep an impeccable paper trail throughout the entire production processes, just as the saying goes: “If it hasn’t been documented, it doesn't exist.” This need for full documentation puts a lot of pressure on companies. It increases the demand for integrated process solutions that both document and optimise all relevant process parameters. The ComoNeo process monitoring system by Kistler, for instance, accurately measures the pressure in all cavities and compares the resulting curve with the nominal curve. ComoNeoPREDICT uses artificial intelligence to predict product quality based on cavity pressure and temperature curves. All things considered, I believe that there is still a lot of untapped potential for digital solutions.

Over the last ten years, measuring quality assurance throughout production has become industry standard because it provides reliable information about the quality of both process and product. Equally, digitalisation and automation of process monitoring have come a long way. Daniel Kormann, head of business development for plastics at Kistler, discusses the state of process monitoring and process control in the light of current developments such as AI and new regulations.

Within our focus industries, the circular economy and especially the use of recyclates are currently the most pressing topics. While we don’t see the latter reflected in the medical field yet due to regulations, this could change soon if we can provide a solution which reliably and automatically compensates process fluctuations. When companies start to use larger percentages of recyclates in their manufacturing processes, measuring technology becomes even more important, while it will not change as such. Melts containing recyclates have a fluctuating viscosity and as a result, parameters which indicate viscosity changes such as cavity pressure need to be constantly monitored to ensure a high product consistency. Again, AI could also come into play to detect and even predict anomalies.

Industrial injection molding press machine for the manufacture of conditioner parts using polymers in the management of worker

While algorithm-based systems are already in use, there are two areas where we can improve and promote their reception. Firstly, when it comes to convincing companies of a solution they haven’t tried yet it is important to demonstrate that automated systems for the shopfloor are easy to set up and use. We will be working more closely with our customers to learn from their experiences, to improve our products as a whole and, as a result, to enhance their user experience.

During my time in the medical devices industry, I have seen several major changes. In 2010, when I started out, companies were still skeptical towards cavity pressure measurement. Those that went on to integrate the technology were mainly interested in using it for straightforward process monitoring, ignoring more sophisticated opportunities. When I joined Kistler, one major project was the creation of ComoNeo, a system which was a serious level-up to the previous solution ComoInjection. As a software designed specifically for injection moulders, ComoNeo provided a much better user experience and was quickly very successful on the market. It also attracted a lot of interest from the medical field. To meet the needs of medtech companies, we created a company-internal group to unite experts from the areas of plastics applications and advanced manufacturing. While the former bring a lot of material expertise, the latter have extensive knowledge in the monitoring of joining and assembly processes. Joining forces, the team saw the immense potential of gathering and analysing meaningful data in the medical field. This has lead to Kistler becoming the sole provider of the process navigator Stasa QC by Stasa, which enables the process monitoring system to provide efficient, automated documentation of the test plans and also to perform the corresponding process analyses. Most recently, we have also presented AkvisIO IME (Injection Moulding Edition), our inhouse process data solution to the broader public at Fakuma.

Stephen has been with PlasticsToday and its preceding publications Modern Plastics and Injection Molding since 1992, throughout this time based in the Asia Pacific region, including stints in Japan, Australia, and his current location Singapore. His current beat focuses on automotive. Stephen is an avid folding bicycle rider, often taking his bike on overseas business trips, and is a proud dachshund owner.

One way to make use of AI certainly lies in the analysis of data and automated predictions based on them. The key here would be a data platform such as Kistler’s akvisIO. It integrates production and measurement equipment such as sensors or field devices and collects their raw data. It then processes it and overall makes data from different sources comparable to each other. Machine learning algorithms can then use the data to draw larger conclusions on the performance of the overall production set-up, to predict maintenance needs and even anomalies. Our vision is that eventually, the algorithm will be able to foresee events that have never occurred before. To make that vision a reality and to also get users on board with the new way of utilising data, our large team of data scientists focus on usability and user experience in our continuous development. AkvisIO processes and analyses process data to be directly used as a basis for decision making. This eliminates the additional step of interpretation and makes the data more accessible. Of course, the user can also add their own interpretation of the data to the results based on their own experience. As the need for AI continues to develop within the industry, we’ve set up akvisIO in a modular way. Working with customers and identifying their specific needs will allow us to add features, or specific modules tailored to a particular application or user group. One area of application could be advanced process control including trends and prediction, which could make processes even more efficient and robust, especially in terms of energy and raw material consumption.

Currently, there are software modules and algorithms that allow injection moulders to automatically adjust process parameters if the measurement curve deviates from a previously defined ideal curve. For instance, if the cavity pressure measured by direct, indirect or non-contact sensors is too high or too low, the system can adjust the switch-over point automatically. The Multiflow software module by Kistler balances filling multiple cavities very efficiently. It analyses fill-time differences between the cavities based on cavity pressure. It then adjusts the tip temperature of the hot runner automatically to achieve a more simultaneous filling. Using automation is becoming ever more relevant as we look at a growing shortage of skilled workers on the shop floor.

Novodur P4XF exhibits high flowability – the melt volume rate (220 °C/10 kg) is at 60 cm3/10 min (ISO 1133). This allows customers to optimize their production tools for faster manufacturing by reducing the number of injection gates for large parts and by increasing the number of cavities in multi-cavity tools.

Ineos Styrolution has debuted a new ABS (acrylonitrile butadiene styrene) grade as part of its Novodur family of ABS specialty copolymers. The new material grade, Novodur P4XF, excels with a high flowability and at the same time offers an attractive balance profile between flowability and impact strength.

Artur Sokolowski, Sales Director Household and Electronics EMEA, comments: “Novodur P4XF is truly amazing. For large parts, it is an excellent alternative to many other materials. Depending on what materials customers are using today, they will experience faster cycle times, shorter cooling times, lower warpage, higher stiffness, higher surface quality and scratch resistance and less dust attraction/ electrostatic charge. In addition, less injection pressure allows for smaller injection machines when using Novodur P4XF.”

Secondly, education is crucial. Educational opportunities are not only helping companies to see the benefits of a digital solution for their specific use case, but also to support employees on different levels in using them. That is why we have established the Kistler Plastics Academy. Here, we support our customers’ digital journey on three levels. On the basic level, we provide training for machine operators, application engineers and mould makers on how to install sensors, how to use the ComoNeo process monitoring system and the data base. On the advanced level, process engineers and production experts learn what is really happening inside the injection mould. On the expert level, data managers and quality engineers get insights into the potential of data management and data analysis.

Material of choice for large housing applications in household and electronics industries; perfect fit for thin-walled applications; high flowability for easy processing and ultimately faster production.