scientific molding
Why Multi-Cavity Molds Fill Unevenly
Balanced filling is critical for making identical parts, achieving high CPKs, holding tight tolerances, and getting “good” data from design of experiments.
Read MoreWhat Percentage of Barrel Capacity Should Your Shot Size Be?
The answer combines both experience and science, and it may be one of those molding details that gets overlooked but could be stealing a chunk of your profits.
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Plasticating Rates: Your Profits Are at Stake
To get the best cycle time you need the right machine, and few molders take the time to specify this critical component of the process.
Read MoreShort Shots Redux
Deliberately making a short shot permits you to do a scientific molding viscosity curve. It will also prevent you from damaging the mold by overpacking if you set shot size incorrectly.
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Mold Filling Simulation: What, When, Why, How
Mold-filling analysis is the right direction to go, but if you want to arrive at your destination—good parts and an efficient process—you’ll need to pay attention to all the details and select an experienced professional to do the analysis.
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Screws and Pellets: One Size Does Not Fit All
Screw design, pellet type/size and material behavior are all critical issues to consider to deliver uniform melt to the mold.
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Why Non-Return Valves Leak
We all recognize that the non-return valve is a problem. The question is where is the research to figure out how to correct this so we have a better shot at making more consistent parts
Read MorePay Attention to Your Nozzle Body & Tip
These are overlooked components that can cost you thousands.
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Injection Molding: How to Set Second-Stage (Pack & Hold) Pressure
Most molders work with two parameters for establishing second-stage pressure. But within Scientific Molding there are actually four.
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