PT ZONE: Hot Runners
Two of the industry’s biggest names changed hands last month as mergers and acquisitions continue to grab headlines in plastics. More (+)
Tooling Advances Highlighted At Molding 2013 ConferenceMolds and tooling were a big topic at the Molding 2013 Conference in New Orleans this January. More (+)
MOST RECENT CONTENT: Hot Runners
Do You Still Get Stubborn Surface Defects, Even With Sequential Valve Gating?
7/30/2012Plastics Technology
Sequential valve gating either eliminates or greatly reduces the flow-front collisions, and resulting knit lines, between a set of nozzles. However, there are still applications using sequential molding where a “ghost mark” or marks occurs on the part between a set or pair of nozzles and/or near the gate itself.
Mold-Masters Gains Exclusive Use Of Ritemp Technology for Hot Runners3/27/2012Plastics Technology
Hot-runner supplier Mold-Masters Ltd., Georgetown, Ont., has obtained rights to exclusive global use of Ritemp evaporative cooling technology for hot-runner molds.
Cures for Common Hot-Runner Wiring Problems3/27/2012Plastics Technology
In the challenging environment of the last several years, manufacturers are looking inward to improve their manufacturing processes, streamline their supply chains, lower maintenance costs, andimprove their bottom lines.
Tooling at NPE: A Hot-Runner Bonanza in Orlando2/24/2012Plastics Technology
Most of the emphasis is on valve gating and on doing more in less space. Other highlights include standardized mold components, some impressive feats of moldmaking creativity, and advances in mold simulation.
News in Auxiliaries & Tooling at Fakuma Show10/25/2011Plastics Technology
Late last month, Friedrichshafen, Germany, hosted Fakuma 2011, the largest European plastics show of the year, growing to be second in size and importance to the K show in Dusseldorf.
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OVERVIEW:
Hot Runners
A hot runner system is an assembly of heated components—hot halves, nozzles and gates and—that inject plastic into the cavities of an injection mold. The system usually includes a heated manifold and a number of heated nozzles. The manifold distributes the plastic entering the mold to the nozzles, which then meter it precisely to the injection points in the cavities. The hot runner is equipped with its own temperature control system.
Product Announcements
- INJECTION MOLDING: Low-Cost, High-Performance Hot-Runner Controllers
- Plastic Engineering & Technical Services 1/29/2013
- INJECTION MOLDING: Single-Drop Hot Sprue Bushings for Prototyping & Short Runs
- DME Company 2/1/2012
- INJECTION MOLDING: Electric Valve Gate Provides Ultimate Needle Control
- Synventive Molding Solutions 12/28/2011
- INJECTION MOLDING: Unitized Hot Runners
- DME Company 8/23/2011
- INJECTION MOLDING: Hot Runners for Auto Lighting
- Synventive Molding Solutions 7/26/2011
