2009/12/22 9:14:44
Wittmann Battenfeld UK (WIBA UK) introduced its Ecopower injection-moulding machine at the Fakuma exhibition last month. The Ecopower machine features a variety of peripheral equipment, such as temperature controllers and dryers, that can be integrated into the machine's control system and fitted into the actual machine frame and connected with it.The Ecopower's B6 control system assumes the funct……
2009/12/14 8:37:28
The selection of the right hot runner system will minimize mold building costs and maintenance expenses over the life of the mold.The decision to invest in a hot runner system is a major step in reducing molding costs. Some of the major benefits of adding any type of runnerless molding technology include: reduced or eliminated regrind, decreased cycle time and improved process capability. The sele……
2009/12/10 11:16:56
This month, we look at the specific issues of disassembling and troubleshooting hot runners—long gate vestiges, in particular. Hot-runner maintenance is tedious work that requires focus, patience and a deft hand when removing and handling tooling. It takes discipline to stop and investigate if you feel excessive resistance when removing or installing valve pins, heaters, manifolds, and……
2009/12/9 8:56:21
Is extruder alignment important? You bet it is. And the larger and longer the extruder, the more important it becomes. An extruder that is poorly aligned causes excessive wear and tear on both the screw and barrel. The movement of the barrel as it tries to accommodate a screw that is being bent on each rotation can cause several other undesirable effects, such as screw breakage, heater crawl……
2009/12/8 9:41:15
Apparently undaunted by a lackluster economy that has slowed capital equipment investment and stymied product development in many areas, Windmoeller & Hoelscher last month strutted out six new technologies for film extrusion. W&H demonstrated the new products, among them a new line that uses water to cool blown film, at a November open house at its headquarters in Lengerich, Germany. W&……
2009/12/7 10:51:48
Over the past several years, significant innovations have occurred in the area of polypropylene nucleation. Up to now, nucleating agents have been used typically to improve PP's stiffness and crystallization rate. Today, they can provide a much wider range of benefits to injection molders of PP. Nucleation can be used to solve many molding challenges. With nucleation, higher crystallization ……
2009/11/25 9:39:27
Most extrusion processors know that in order to boost output you need more power. But how are output and power connected? How do you know how much power you really need? And why is so much power required in the first place? Knowing the answers to these questions can help you spec a new machine, or troubleshoot an existing one.Let’s answer the last question first. Extruders melt polymers prim……
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