Challenges Facing Moldmakers In Design Process

Just as mold manufacturers are constantly looking for ways to streamline the mold

design and build process while maintaining quality and accuracy as molds get more complex, they also wish to reduce the amount of suppliers with which they deal. It is more important than ever that a supplier not only sell equipment-but offer a variety and possess a working knowledge of the moldmaking process. Hot runner and components suppliers are listening to their customers. Hot runner systems and mold components are becoming more streamlined and standardized-increasing productivity, reducing maintenance and improving efficiencies. According to Dave Lange, Director of Sales at DME Company (Madison Heights, MI), moldmakers face application hurdles that include: challenging part shape/geometry, required higher cavitations and volume and in-mold assembly, increased end market regulations and improved part cosmetics. All of the advances we are seeing in hot runners, components and anything else relating to moldmaking are coming from customer demand for reduced overall tooling costs, reduced design time and overall leadtime, Lange states. Below, a number of major suppliers join Lange in weighing in on where they believe the markets are heading. Michael Ellis, Director, Sales Support and Marketing for Mold-Masters Ltd. (Georgetown, ON), notes that the most common questions molders and moldmakers ask the company is regarding materials used, hot runner balance and warranties. Variables, such as material toughness, wear rates, thermal profile, etc. are all key to a moldmakers ability to create a good, durable and long-lasting mold, he elaborates. Something that is critical in ensuring that their customersthe molders and end usersmaximize the uptime of their molding processes. This is why we spend so much time testing and developing new materials and designs that continuously increase the longevity of our systems. Hot runner balance is key in order to mold a good part, Ellis continues, affecting everything from part fill rate to color change. A variety of factors affects hot runner balance, but the manufacturing of the manifold and the thermal profile of the entire system are two variables that have the most impact, he states. Because we use brazed-in heaters with optimal heat profile, plus our nozzle design allows for thermocouples to be installed close to the gate for accurate thermal readings, our entire hot runner system ensures an accurate heat profile. We have also developed special technology manifolds to ensure that all internal runners are optimized with no sharp corners or dead zones-allowing the melt to flow through the channels without any obstructions. Moldmakers commonly ask Synventive Molding Solutions (Peabody, MA) what the company can do to help them keep down costs and simplify installations, notes its Chief Engineer Bill Rousseau. Synventive puts a strong emphasis on satisfying this request with everything we develop, including a product that greatly reduces the time required to integrate a valve gate hot runner into the mold and prepare it for first article testing, he states. Tony Brusca, President of Alba Enterprises Inc. (Rancho Cucamonga, CA), notes that his customers ask questions like how fast can they get a quote; and can Alba process high-end technical materials. Over at HASCO America, Inc. (Fletcher, NC), Brenda Clark, Applications Engineer and Inside Sales Manager, says the common moldmaker questions are about applications in areas like cost reduction, increased productivity, cleanroom technology, improved service life, maintainability, cycle time abbreviation, reduction of wear and improved energy efficiency. With its high quality products such as impact crusher and professional jaw crusher, Hongxing Machinery has ascended in the front rank of the world in the exporting of mining equipment.

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