2008/3/8 8:51:37
The injection molding of micro parts calls for innovative hot runner solutions to comply with the demands of injection molders and toolmakers.The injection molding of precision and micro parts creates special demands on the moldmaker and hot runner supplier. Since the weight of the parts ranges from 0.05g to 2g the weight of the runner system has an increasing influence on part price. Due to the f……
2007/12/30 8:45:17
Successful application of a hot runner in the molding environment requires detailed analysis of gating styles, resin and molder expectations.Hot runner systems are a key component of the multi-cavity injection mold. Ironically, hot runners are probably the least understood mold component from the moldmakers’ perspective. A hot runner is a complex system including mechanical actuation, heatin……
2007/12/30 8:43:44
One shop is finding great success—through special standardization—cutting scrap and runner costs by balancing the flow in the molds and reducing cycle times while using smaller, most cost-efficient presses.With many custom mold shops losing business to foreign competition, it is clear that thinking outside of the box is necessary to compete globally. One custom molder, Viking Plastics ……
2007/12/30 8:39:58
Criteria that can be used in making ejector sleeves, which will minimize or eliminate failures as well as improve the performance and function of ejector sleeves and minimize maintenance. Basically, the function of an ejector sleeve in a mold is to eject either an entire finish molded piece part or apply ejection force to some portion of the molded piece part to ……
2007/12/30 8:35:55
Benefits of using a secondary guide rod on lifter core assemblies.Conventional lifter cores have been somewhat limited in their performance given the large mold footprints they create. Reactionary forces and bending moments within conventional lifter core rods require smaller rod angles, which can increase mold die height and footprint. A new approach to designing lifter cores utilizes a second gu……
2007/12/30 8:34:08
The injection molding of micro parts calls for innovative hot runner solutions to comply with the demands of injection molders and toolmakers.The injection molding of precision and micro parts creates special demands on the moldmaker and hot runner supplier. Since the weight of the parts ranges from 0.05g to 2g the weight of the runner system has an increasing influence on part price. Due to the f……
2007/12/30 8:30:29
The polylactic acid trend, material benefits and challenges to injection molding and injection mold design.Booming populations and the growth of the global economy are creating increased demand for plastic injection molded products. But plastic parts also are contributing to over-capacity in landfills and a nationwide littering problem. At the same time, oil resources are at risk, and oil and gas ……
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