Know-How
Having Output Problems? Check Your Feed-Port Design
With an extruder, like all other devices, “it can’t come out unless it goes in first.” That’s the first thing I remember when I am asked to figure out why an extruder is performing below expectations.
Read MoreYou Think You Know Your Molds? Try These 10 Questions to Find Out for Sure
A mold repair technician’s job has always been to make molds run—anyhow, any way.
Read MoreGood Reasons to Make a Short Shot, and How to Do It Right
Making a proper short shot is an important aspect of practicing “scientific molding.” Upon startup of almost any mold, the first step is to make a short shot.
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Injection Molding Know-How: The ABCs of Delta P: Setting the First-Stage Pressure Limit
Here’s another trick of the trade that will make your life easier.
Read MoreTooling Know-How: Five Tips on Profile Die Design
A poorly designed profile die—one that does not permit the part to be extruded with the same dimensions from run to run—coupled with a lack of understanding of the extrusion process, is a recipe for scrap generation.
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Extrusion Know-How: The Whys & Hows (& Ifs) of Vented Extruders
Vented or two-stage screws only make sense when volatiles must be removed in order to make a satisfactory product.
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Tooling Know-How: Troubleshooting Defects--Part II: Hot-Runner Long Gate Vestiges
Last month, we discussed the general issues of an organized and disciplined process of troubleshooting and correcting mold defects.
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Extrusion Know-How: Proper Alignment Saves Wear & Tear ... or Worse
Is extruder alignment important?
Read MoreInjection Molding Know-How: Drying Tips: A Dozen Details You Should Know
Drying is complicated.
Read MoreHow Much Horsepower Do You Need?
Most extrusion processors know that in order to boost output you need more power.
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