Why Control Melt Decompression? Just Shut It Off!
Thursday, September 08, 2011
Columbiana, OH—Effective control over the melt-phase of plastic materials in the injection molding process depends upon a number of key factors, not the least of which is the pressing need to eliminate stringing and drooling through effective control over melt decompression. However, Mini-Shut™ —an inexpensive, automatic, miniature nozzle shut-off tip that now is exclusively available in the USA from Md Plastics Incorporated, (Columbiana, OH; www.mdplastics.com)—not only eliminates stringing and drooling, but also eliminates the need for melt decompression itself.
In addition, Mini-Shut™ is engineered to ensure repeatable part weight distribution, while also significantly reducing any chance of surface imperfections ever appearing on molded parts.
Easy to install and remove, and designed to fit on the majority of all nozzle bodies, Mini-Shut™ provides repeatable operation, even at temperatures exceeding 750°F. And, in addition to ensuring low pressure drop and low shear, Mini-Shut™ also allows for the simultaneous operation of the clamp and the screw to boost productivity. What’s more, Mini-Shut™ can easily be cleaned using conventional purging methods.
“Our miniature automatic shut-off nozzle fills an existing void in the industry by supplying an inexpensive, low maintenance, easily installed and removed solution that prevents drooling and minimizes excessive melt decompression,” says Michael F. Durina, President of MD Plastics Incorporated.
“I honestly believe that a Mini-Shut™ should be installed on every molding machine in the world, since the benefits that it offers to the molding process are so easy to understand. However, until now, an inexpensive, easy-to-use, miniature device that provides such benefits simply didn’t exist.”
Md Plastics, which has applied for a U.S. patent on the Mini-Shut™ for injection molding, distributes the product in the USA through its own offices, as well as through DME Molding Supplies (www.dme.net/moldingsupplies). SE System Engineering AG, (Däniken, Switzerland; www.se-ag.com) is its exclusive distributor throughout Continental Europe, while Cooper Technology (Bangor, County Down, N. Ireland; www.coopertech.com) distributes Mini-Shut™ in both the UK and Ireland
Mini-Shut™ is now in stock and available Stateside, off-the-shelf, for all machine sizes and molding applications.
Fig. 1: Engineered for installation on most nozzle bodies, the new Mini-Shut™ nozzle shut-off tip shuts off drooling and stringing, while ensuring repeatable part weight distribution, shot after shot.
MD Plastics Incorporated is a leader in the design, engineering, manufacturing, and marketing of plasticating components that add value to the science of Melt Preparation Technology. Since 1999 the company has emerged as a leader in the design, engineering, manufacturing and marketing of screws, screw tips, barrels, nozzles, end caps, nozzle adapters, and heater-bands. Its globally sourced products and processing expertise help its customers cost-effectively improve both product quality and productivity.
For More Information, Contact:: Michael F. Durina