#BESTPRACTICES

Injection Molding

Process Capability and the ‘Hesitation Effect’

Understanding the concepts of pack and hold and applying them during process development is critical for molders to achieve consistent part quality.
#processingtips #scientificmolding #bestpractices

Materials Know How

Part 1: Heat Deflection Temperature vs. Dynamic Mechanical Analysis

Does the industry need a better way of reporting the temperature-dependent behavior of plastics? With DMA, it already has one. But it’s been glacially slow to catch on.
#bestpractices #Elastomers

Injection Molding

PART 2 OF 2: Tricks of the Trade on RTOs, RSOs

They have a lot more to offer molders than just shutting off a cavity. Let’s take a closer look.
#bestpractices

Extrusion

Unraveling the Complexity of Single-Screw Scale-Up

Variables such as shear rates, melting rate, residence time and conductive heating are all influenced in the scale-up.
#bestpractices #screws

Injection Molding

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

Automation

Best of…Best Practices in Injection Molding

Fifty expert speakers at Plastics Technology’s annual Molding Conference will offer their insights to help you optimize your process.
#processingtips #scientificmolding #bestpractices

Injection Molding

Meet the Author, Live the Article at Molding 2019

Attendees of Molding 2019 have the chance to sit in on presentations by some of Plastics Technology’s leading injection molding columnists and then pick their collective brain as a group during a special panel discussion.
#bestpractices

Automotive

Worldwide Switch to New Gauging System Pays Off for Haartz

Leading supplier of sheet and roll stock for automotive applications reevaluated its thickness-measurement technology in 2012, and now has 15 scanners in place worldwide from one supplier.
#sustainability #planttour #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

Extrusion Know How

Telltale Signs of Screw Wear

Determining the cause of wear is the first step in eliminating it.
#bestpractices #screws

Molds & Tooling

Tricks of the Trade on RTOs and RSOs

The more you know about these runner diverters and shutoffs, the more you’ll use them. Here’s how to put them to work in your mold..
#bestpractices

Additives

Part 11: A Processor's Most Important Job

It’s the processors job to ensure molded parts contain enough stabilizer to perform to the expectations of the end use.
#processingtips #bestpractices

Injection Molding

Good, Better, Best (Practices): Molding 2019 Agenda Finalized

Approaching its third decade as the go-to gathering for injection molders, Molding 2019 (March 19-21; Indianapolis) will offer attendees best practices on the key elements of the process.
#bestpractices

Commodity Resins

A Gel By Any Other Name...

Gels…unmelt…contaminants…inclusions…whatever you call them, you want to avoid them. Proper maintenance and good housekeeping—lids on boxes, closed hopper doors, core-free reclaim systems—go a long way towards defect-free product.
#processingtips #bestpractices #polyolefins

Resin Conveying

Road Trip: Bulk-Handling Systems on Wheels

Coperion, Coperion K-Tron launch Traveling Equipment Display to showcase  solutions for handling bulk-solid materials.
#bestpractices

Molds & Tooling

Why Ejector Pins Break and How to Prevent It: Part 4

In this installment the focus is on bearing length, clearances, keying, and machining.
#bestpractices

Mold Maintenance

Tooling: Why Ejector Pins Break and How to Prevent It, Part 3

Here we focus on forces, friction, surface finish, and lubrication.
#bestpractices

Extrusion Know How

Extrusion: Head Pressure and Output Stability

Use drag- and pressure-flow equations to analyze fluctuating output.
#processingtips #bestpractices

Injection Know How

Injection Molding: Sliding vs. Locking Ring—Which Non-Return Valve Is Right for You?

The locking-ring style appears to dominate the market, as most believe it makes a make a better seal and leaks less. But is this really so?
#scientificmolding #processingtips #bestpractices

Materials Know How

A Processor's Most Important Job, Part 9: Avoid Molded-In Stress

How to establish molding conditions that minimize internal stress in a part.
#processingtips #bestpractices