Injection Molding
Thermal Cycling of Injection Molds Boosts Surface Quality
In the injection molding process, tool temperature is an important factor in achieving high-quality parts.
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Hourly Rates Rose in Second Half
Custom injection molders raised their machine-hour rates an average of 1% from June to December 2007, according to responses from 93 molders to our latest semi-annual survey.
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IML is for Large Parts, Too
The same economic and functional advantages that make in-mold labeling (IML) a growing trend in injection molded packaging are expanding its uses in large parts for durable goods as well.
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Sequential Hard/Soft Injection Molding with Water Assist
In 2004, the value of pairing two-material injection with water assist was demonstrated in production of two-layer automotive pipes and ducts (see Learn More). Further potential for this combination of advanced techniques in sequential injection of hollow automotive parts with rigid and flexible sections is being developed at the German Institute of Plastics Processing (known as the IKV). Water injection technology (WIT) was first developed at the IKV in the 1990s.
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Injection Molding Compounders Molders Get Control Of Their Materials
The combination of an injection molding press and a twin-screw compounding extruder represents a new paradigm for processors: They create their own materials as they mold them.
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PUR Machinery Gains in Versatility and Economy
Polyurethane equipment at K 2007 in Dusseldorf showed incremental advances in cost-effectiveness and ability to handle a wide range of applications.
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Precision Molder Takes on LSR
Liquid Silicone Rubber (LSR) injection molding makes up just 10% to 15% of U.S. medical or automotive applications that are also served by high-consistency silicone rubber (HCR), EPDM, latex, natural rubber, TPEs, flexible PVC, and even porcelain ceramic. Nonetheless, LSR molding is attracting growing interest (see Learn More), enough to prompt the formation of a new division dedicated to LSR by GW Plastics in Bethel, Vt.
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New Material Cures LSR Molding Headaches
For some problems the solution is to be soft but also be strong.
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Coatings Give Aluminum Molds Cost/Performance Edge Over Steel
New cost-effective technologies are designed to make aluminum an attractive alternative to tool steels in a range of plastics molding processes. One method uses a plasma technique to convert the aluminum surface into a hard, dense, wear-resistant ceramic. Another approach uses electro-deposition to apply a surface coating with high hardness, corrosion resistance, and chemical resistance.
Read MoreConair and Husky Jointly Offer PET Systems
WEB EXCLUSIVE The Conair Group, Inc., Cranberry Township, Pa., and Husky Injection Molding Systems Ltd., Bolton, Ont., have agreed to jointly supply complete PET preform manufacturing systems worldwide.
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