INJECTION KNOW HOW

Injection Know How

Understanding—and Using—Decompression to Your Advantage

Decompression—aka suckback—is a very important setting on an injection molding machine. On today’s machines, molders typically get the option to set decompression before and after screw rotation/recovery. Are they using this feature to their advantage?

Injection Know How

How to Deal With Residual Stress in Molded Parts

Here are design, molding, and fixturing considerations to help you handle this unavoidable issue.
#bestpractices

Hot Runners

How to Manage Pressure Loss in Injection Molding

Achieving a process window wide enough to ensure consistent part quality depends on achieving sufficient pressure at end of fill.
#bestpractices

Injection Molding

How to Quickly Verify Your Machine & Process Setpoints

For a quick check of your process setup, the injection-pressure-vs.-time graph is your best tool.
#bestpractices #monitoring

Injection Know How

The 'Butterfly Effect' in Injection Molding—A Connected Process

In injection molding, a seemingly minor change in a setpoint can have a significant impact on part quality and process robustness and repeatability. That’s why Scientific Molding focuses on process outputs, not setpoints.
#processingtips #scientificmolding #bestpractices

Injection Molding

Mold-Clamping Details for Profit

Taking time to sweat the details of clamping is not much fun, but they do make a difference in a company’s bottom line.
#scientificmolding #bestpractices

Injection Molding

What’s With All the Static?

Static buildup on polymers can cause a variety of problems, some rather unpleasant. Yet there’s an inexpensive way to eliminate it, and we have data as proof.
#bestpractices

Injection Know How

PART 2: The Importance of Consistent Fill Time

To make identical parts, you need to keep fill time constant. In part one we covered the why. Here’s the how.
#processingtips #scientificmolding #bestpractices

Injection Know How

Part 1: The Importance of Consistent Fill Time

To make identical parts, you need to keep fill time constant. Here’s why.
#processingtips #scientificmolding #bestpractices

Injection Know How

Identifying and Correcting Splay

Splay adjustments can be a simple fix, or can require several hours of babysitting a press and head scratching. Learn to find the root cause.