The aim of this presentation is to guide you through the factors and the numbers that will help you determine if a robot is a smart investment for your application. Agenda:  Why are you considering automation? What problems are you trying to solve? How and why automation can help Crunch the numbers and determine the ROI

Across the show, sustainability ruled in new materials technology, from polyolefins and engineering resins to biobased materials.

In amorphous polymers, annealing is performed to draw down the internal stresses to a level not achievable within the conditions of a normal molding process. But a few parameters are important to achieving the desired results.

Previously we have discussed the effects of temperature and time on the long-term behavior of polymers. Now let's take a look at stress.

Learn about sustainable scrap reprocessing—this resource offers a deep dive into everything from granulator types and options, to service tips, videos and technical articles.

Celebrating its monumental 75th anniversary, Interplas has long been the heart of innovation and change in the plastics sector. This year, it will boast over 500 exhibitors, providing a platform for 12,000 attendees to gain insights into the latest advancements in plastics manufacturing processes, technologies, materials, and services.

This month’s resin pricing report includes PT’s quarterly check-in on select engineering resins, including nylon 6 and 66.

Join Engel in exploring the future of battery molding technology. Discover advancements in thermoplastic composites for battery housings, innovative automation solutions and the latest in large-tonnage equipment designed for e-mobility — all with a focus on cost-efficient solutions. Agenda: Learn about cutting-edge thermoplastic composites for durable, sustainable and cost-efficient battery housings Explore advanced automation concepts for efficient and scalable production See the latest large-tonnage equipment and technology innovations for e-mobility solutions

Plastics Technology’s Tech Days is back! Every Tuesday in October, a series of five online presentations will be given by industry supplier around the following topics:  Injection Molding — New Technologies, Efficiencies Film Extrusion — New Technologies, Efficiencies Upstream/Downstream Operations Injection Molding — Sustainability Extrusion — Compounding Coming out of NPE2024, PT identified a variety of topics, technologies and trends that are driving and shaping the evolution of plastic products manufacturing — from recycling/recyclability and energy optimization to AI-based process control and automation implementation. PT Tech Days is designed to provide a robust, curated, accessible platform through which plastics professionals can explore these trends, have direct access to subject-matter experts and develop strategies for applying solutions in their operations.

Rosti Group, a global plastics injection moulding company and contract manufacturer, announced its European business development technical director Tony Austin, will take the stage during Interplas 2023 on 26th September from 14.00 - 14.45pm at the NEC in Birmingham.

This Knowledge Center provides an overview of the considerations needed to understand the purchase, operation, and maintenance of a process cooling system.

While the major correction in PP prices was finally underway, generally stable pricing was anticipated for the other four commodity resins.

Second quarter started with price hikes in PE and the four volume engineering resins, but relatively stable pricing was largely expected by the quarter’s end.

You can forgo the elevated mold temperatures normally recommended for high-performance semi-crystalline materials. But it’s risky and likely to yield parts that under-perform expectations … assuming that they emerge from the annealing process looking anything like the drawing.

Mixed in among thought leaders from leading suppliers to injection molders and mold makers at the 2023 Molding and MoldMaking conferences will be molders and toolmakers themselves.

Therefore, while it is technically possible to forgo the elevated mold temperatures normally associated with best practices for processing high-performance semi-crystalline materials, it is very risky and likely to yield parts that dramatically under perform expectations—assuming that they emerge from the annealing process looking anything like the drawing. In our next column we will extend the annealing discussion to its application in crosslinked materials.

Across all process types, sustainability was a big theme at NPE2024. But there was plenty to see in automation and artificial intelligence as well.

In this collection of content, we provide expert advice on welding from some of the leading authorities in the field, with tips on such matters as controls, as well as insights on how to solve common problems in welding.

technotrans says climate protection, energy efficiency and customization will be key discussion topics at PTXPO as it displays its protemp flow 6 ultrasonic eco and the teco cs 90t 9.1 TCUs.

Mike Sepe has authored more than 25 ANTEC papers and more than 250 articles illustrating the importance of this interdisciplanary approach. In this collection, we present some of his best work during the years he has been contributing for Plastics Technology Magazine.

Processors with sustainability goals or mandates have a number of ways to reach their goals. Biopolymers are among them.

You would think we’d know all there is to know about a material that was commercialized 80 years ago. Not so for polyethylene. Let’s start by brushing up on the basics.

Ultradent's entry of its Umbrella cheek retractor took home the awards for Technical Sophistication and Achievement in Economics and Efficiency at PTXPO.

In this three-part collection, veteran molder and moldmaker Jim Fattori brings to bear his 40+ years of on-the-job experience and provides molders his “from the trenches” perspective on on the why, where and how of venting injection molds. Take the trial-and-error out of the molding venting process.

BIRMINGHAM, ENGLAND - DECEMBER 2019: "Welcome to the NEC" on a giant LED screen outside the entrance to the Birmingham National Exhibition Centre.

In addition to Interplas session participation, Rosti representatives will highlight the company’s role in precision moulding and contract manufacturing, including:

Mold maintenance is critical, and with this collection of content we’ve bundled some of the very best advice we’ve published on repairing, maintaining, evaluating and even hanging molds on injection molding machines.

ABOUT THE AUTHOR  Mike Sepe is an independent, global materials and processing consultant whose company, Michael P. Sepe, LLC, is based in Sedona, Ariz. He has more than 40 years of experience in the plastics industry and assists clients with material selection, designing for manufacturability, process optimization, troubleshooting, and failure analysis. Contact: (928) 203-0408 • mike@thematerialanalyst.com.

Multiple speakers at Molding 2023 will address the ways simulation can impact material substitution decisions, process profitability and simplification of mold design.

The final problem with “annealing in” most or all of the crystalline structure goes back to something we mentioned in our last article: Crystals formed in the solid state through annealing are not as large or as perfect as crystals formed from the melt. It is known that crystals that are “annealed in” will melt at a temperature slightly higher than the temperature at which they were created. Consider PEEK again. A common annealing routine for PEEK is a 2-hr exposure to 200 C (392 F). This temperature is well above the Tg of the polymer and will effectively provide that last little bit of crystallinity that we could not obtain from the molding process.

Exhibitors and presenters at the plastics show emphasized 3D printing as a complement and aid to more traditional production processes.

Gifted with extraordinary technical know how and an authoritative yet plain English writing style, in this collection of articles Fattori offers his insights on a variety of molding-related topics that are bound to make your days on the production floor go a little bit better.

Say “manufacturing automation” and thoughts immediately go to the shop floor and specialized production equipment, robotics and material handling systems. But there is another realm of possible automation — the front office.

While prices moved up for three of the five commodity resins, there was potential for a flat trajectory for the rest of the third quarter.

The converse is also true, and with most high-performance semi-crystalline materials, achieving the optimal structure requires the use of mold temperatures that cannot be achieved with traditional water heaters. Instead, pressurized water, oil, or heater cartridges are required. This can be a significant barrier to entry for some processors. Consequently, some processors attempt to anneal into the parts most of the crystallinity that is required. Instead of using the annealing process to produce the last 10% of the achievable crystallinity, they run the material at a low mold temperature that essentially results in an amorphous structure and then they “bake in” the crystal structure after the parts are molded.

While the melting process does not provide perfect mixing, this study shows that mixing is indeed initiated during melting.

Resin drying is a crucial, but often-misunderstood area. This collection includes details on why and what you need to dry, how to specify a dryer, and best practices.

Successfully starting or restarting an injection molding machine is less about ticking boxes on a rote checklist and more about individually assessing each processing scenario and its unique variables.

Core Technology Molding turned to Mold-Masters E-Multi auxiliary injection unit to help it win a job and dramatically change its process.

High-performance semi-crystalline polymers typically have high glass-transition temperatures. This results in the need for high mold temperatures to ensure that an appropriate level of crystallinity is established in the part. Polymers such as PPS, PEEK, PPA, SPS, and even some PET polyesters fall into this high-performance class where mold temperatures of at least 120 C (248 F) and as high as 200 C (392 F) are needed in order to achieve the desired structure. Some PET suppliers have developed nucleating technologies that allow for development of an appropriate level of crystallinity while still using mold temperatures that can be achieved with traditional water heating.

In a time where sustainability is no longer just a buzzword, the food and beverage packaging industry is required to be at the forefront of this innovation. By adopting circular packaging processes and solutions, producers can meet regulatory requirements while also satisfying consumer demand and enhancing brand reputation. Join Husky to learn more about the broader implications of the circular economy — as well as how leading brands are leveraging this opportunity to reduce costs, increase design flexibility and boost product differentiation. Agenda: The cost and operational benefits of embracing circularity Key materials in circular packaging — including rPET and emerging bioplastics How to design a circular food and beverage package Strategies for selecting sustainable closures to future-proof packaging solutions Optimization and streamlining of production processes for enhanced efficiency How Husky Technologies can enable your sustainable success

“Interplas has always been a beacon of innovation in the plastics industry, and this year's event is especially significant as it marks its 75th anniversary,” said Mark Wrigley, SVP sales & marketing, Rosti Group.

But consider a part that has been molded in an essentially an amorphous state. When annealed at 200 C, assuming the part is still in a form that is recognizable, it will consist of crystals that melt at approximately 220 C (428 F). This is a long way from the typical melting point of 343 C (649 F) that we expect from the polymer. It is also below even the quoted continuous-use temperature for the material, which on the UL yellow card can be as high as 260 C (500 F).

“We're honoured to have Tony Austin represent Rosti in such a critical discussion on reshoring and the future of contract manufacturing. It's not just about understanding the changes in the industry but actively shaping its future. At Rosti, we believe in driving the conversation forward, and Interplas 2023 is the perfect platform that allows us to do this in conjunction with other thought leaders.”

What many of us forget is that mold-shrinkage values are calculated from the way that parts shrink after they have been formed under significant pressure. As a material cools in a mold, we continue to apply pressure to compensate for the relatively large change in volume that would occur if the part were to cool in an unrestrained state. Amorphous polymers typically exhibit mold shrinkage values of approximately 0.5%, but we know that the melt density of an amorphous polymer is approximately 10% lower than that of the solid material. Without the constraints of the mold and the ability to apply pressure while the material is cooling, our experience of the way materials shrink would be very different.

Despite price increase nominations going into second quarter, it appeared there was potential for generally flat pricing with the exception of a major downward correction for PP.

Sustainability continues to dominate new additives technology, but upping performance is also evident. Most of the new additives have been targeted to commodity resins and particularly polyolefins.

The Plastics Industry Association (PLASTICS) has released final figures for NPE2024: The Plastics Show (May 6-10; Orlando) that officially make it the largest ever NPE in several key metrics.

Plastics Technology covers technical and business Information for Plastics Processors in Injection Molding, Extrusion, Blow Molding, Plastic Additives, Compounding, Plastic Materials, and Resin Pricing. About Us

Take a deep dive into all of the various aspects of part quoting to ensure you’ve got all the bases—as in costs—covered before preparing your customer’s quote for services.

Formnext Chicago is an industrial additive manufacturing expo taking place April 8-10, 2025 at McCormick Place in Chicago, Illinois. Formnext Chicago is the second in a series of Formnext events in the U.S. being produced by Mesago Messe Frankfurt, AMT – The Association For Manufacturing Technology, and Gardner Business Media (our publisher).

The pivotal roundtable debate and discussion will delve into the post-COVID manufacturing landscape, where Austin and fellow panelists will shed light on reshoring, contract manufacturing, and what lies ahead for the industry.

I once worked with a processor who had corrected a warpage problem in a long connector of a semi-crystalline material by reducing the mold temperature from 120 C (248 F) to 35 C (95 F). When the customer received the parts, it promptly placed them in an oven at 120 C and the parts warped to an even greater degree than they had coming out of the hot mold. The processor claimed that the customer was “cheating.” I explained to them that the customer was merely determining what would happen to the parts when they reached their operating temperature in the field and that the crystallinity that they had suppressed to correct the warpage problem would occur anyway once the part reached the operating temperature of the device.

In this collection of articles, two of the industry’s foremost authorities on screw design — Jim Frankand and Mark Spalding — offer their sage advice on screw design...what works, what doesn’t, and what to look for when things start going wrong.

Last month we briefly discussed the influence of temperature on the mechanical properties of polymers and reviewed some of the structural considerations that govern these effects.

The dimensional changes that the part will exhibit during annealing will be much greater than expected from our experience as processors.

After successfully introducing a combined conference for moldmakers and injection molders in 2022, Plastics Technology and MoldMaking Technology are once again joining forces for a tooling/molding two-for-one.

Join this webinar to explore the transformative benefits of retrofitting your existing injection molding machines (IMMs). Engel will guide you through upgrading your equipment to enhance monitoring, control and adaptability — all while integrating digital technologies. You'll learn about the latest trends in IMM retrofitting (including Euromap interfaces and plasticizing retrofits) and discover how to future-proof your machines for a competitive edge. With insights from industry experts, it'll walk you through the decision-making process, ensuring you make informed choices that drive your business forward. Agenda: Maximize the value of your current IMMs through strategic retrofitting Learn how to integrate digital technologies to enhance monitoring and control Explore the benefits of Euromap interfaces and plasticizing retrofits Understand how retrofitting can help meet new product demands and improve adaptability Discover how Engel can support your retrofitting needs, from free consultations to execution

When, how, what and why to automate — leading robotics suppliers and forward-thinking moldmakers will share their insights on automating manufacturing at collocated event.

Discover how artifical intelligence is revolutionizing plastics processing. Hear from industry experts on the future impact of AI on your operations and envision a fully interconnected plant.

Additive technology creates air pockets in film during orientation, cutting down on the amount of resin needed while boosting opacity, mechanical properties and recyclability.

Annealing takes place in an unrestrained environment. Therefore, the dimensional changes the part will exhibit during annealing will be much greater than expected from our experience as processors. In addition, a part molded at a relatively low mold temperature will contain a much higher degree of retained orientation in its structure. The material that forms the surface will have a substantially different structure than the material in the core, and during the annealing process the molded-in stress will tend to relax. This frequently results in warpage.

While this may work in some cases, it is an approach fraught with downsides. These can be appreciated by illustrating what occurs structurally when a material that “wants” to be semi-crystalline is molded in an amorphous state and is then crystallized later. PEEK is a good example of a material that can be fabricated into an amorphous or a semi-crystalline structure, depending upon the rate at which the material is cooled. In fact, some data sheets for unfilled PEEK give a density for both the amorphous and the semi-crystalline form of the material. As a semi-crystalline material, the density is given as 1.30 g/cm3. In amorphous form it is 1.26 g/cm3.

For these polymers, annealing is done to establish a level of crystallinity that cannot be practically obtained within the parameters of a normal molding cycle. Here’s some guidance on setting annealing time and temperature.

August 29-30 in Minneapolis all things injection molding and moldmaking will be happening at the Hyatt Regency — check out who’s speaking on what topics today.

In the case of PPA, almost all suppliers of this class of materials have developed fast-crystallizing grades as an alternative to the original materials that required the more demanding mold temperatures. However, this improvement was achieved by manipulating the chemistry of the polymer so that the glass-transition temperature (Tg) is reduced. This is something that material suppliers neglect to mention, and while the molder may be very pleased to be able to produce parts without resorting to extreme mold temperatures, the end user may not be so enthusiastic.

Most of us know that semi-crystalline polymers shrink more out of the mold than amorphous materials. A typical mold shrinkage value for an unfilled amorphous polymer is 0.005 mm/mm or about 0.5%. Unfilled PEEK in semi-crystalline form shrinks approximately 1.5%. This may lead a processor seeking to “anneal in” the crystal structure of PEEK to calculate that the molded part dimensions will be reduced by approximately 1% during the annealing process. However, the difference in density between the amorphous and the semi-crystalline form suggests a volume change of over 3%. Why the discrepancy?

While prices moved up for three of the five commodity resins, there was potential for a flat trajectory for the rest of the third quarter.

Thousands of people visit our Supplier Guide every day to source equipment and materials. Get in front of them with a free company profile.

Relatively rapid cooling rates in processing introduce internal stress. If functional problems in use result, annealing may draw down the stress to levels that may not be achievable during processing.

The accompanying graph shows a plot of modulus as a function of temperature for a high-performance PPA and a fast-crystallizing grade. The fast-crystallizing grade sacrifices over 50º C (90º F) of performance. This is an excellent illustration of the continual tradeoff between processability and performance that we see in the world of plastics. If a change is made to a material that makes life easier for the processor, it almost certainly involves a reduction in field performance.

Introduced by Zeiger and Spark Industries at the PTXPO, the nozzle is designed for maximum heat transfer and uniformity with a continuous taper for self cleaning.

Wrigley added, “Interplas 2023 stands out as a unique opportunity for leaders in the plastics industry to come together. We are immensely proud to have Tony Austin represent Rosti, offering invaluable insights and sparking meaningful discussions that underscore the industry's ongoing evolution."

Join Wittmann for an engaging webinar on the transformative impact of manufacturing execution systems (MES) in the plastic injection molding industry. Discover how MES enhances production efficiency, quality control and real-time monitoring while also reducing downtime. It will explore the integration of MES with existing systems, emphasizing compliance and traceability for automotive and medical sectors. Learn about the latest advancements in IoT and AI technologies and how they drive innovation and continuous improvement in MES. Agenda: Overview of MES benefits What is MES? Definition, role and brief history Historical perspective and evolution Longevity and analytics Connectivity: importance, standards and integration Advantages of MES: efficiency, real-time data, traceability and cost savings Emerging technologies: IoT and AI in MES

In this collection, which is part one of a series representing some of John’s finest work, we present you with five articles that we think you will refer to time and again as you look to solve problems, cut cycle times and improve the quality of the parts you mold.

Join KraussMaffei for an insightful webinar designed for industry professionals, engineers and anyone interested in the manufacturing processes of PVC pipes. This session will provide a comprehensive understanding of the technology behind the production of high-quality PVC pipes: from raw material preparation to final product testing. Agenda: Introduction to PVC extrusion: overview of the basic principles of PVC pipe extrusion — including the process of melting and shaping PVC resin into pipe forms Equipment and machinery: detailed explanation of the key equipment involved — such as extruders, dies and cooling systems — and their roles in the extrusion process Process parameters: insight into the critical process parameters like temperature, pressure and cooling rates that influence the quality and consistency of the final PVC pipes Energy efficiency: examination of ways to save material and energy use when extruding PVC pipe products