Articles
Braskem Buys Dow's PP Business
Braskem in Brazil has acquired the polypropylene business of Dow Chemical Co., Midland, Mich.
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.
Read MoreThe Truth About Barrel Heating
The main purposes of the heaters are to melt the polymer that remains in the barrel at cold startup, to assist in forming the initial melt, and to “trim” the barrel temperatures for specific purposes such as improving feed rate.
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Recent Polyethylene Decreases are about to Change!
In July we saw higher feedstock cost, lower inventories and increasing pricing and exports in Asia.
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Commodity Prices Fall; More Dips Coming?
Falling prices for the four main commodity thermoplastics was the trend by mid-July.
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Energy Miser: Use Less Energy to Generate Compressed Air
Last month, we addressed how to minimize your plant’s usage of costly compressed air.
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Boost Performance, Speed, Economy with Servo-Controlled Welding
Ultrasonic welding is one of the most widely used processes for bonding polymers, valued for its speed, flexibility, and low cost.
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Novel Molds & Machinery for Medical Molding
The combined MD&M East and Plastec East shows in N.Y.C. in June presented intriguing developments for medical injection molders.
Read MoreInternal Air Pressure vs. Vacuum Sizing for Ovality Issues?
To achieve more consistent ovality in an application like medical tubing extrusion, consider vacuum sizing.
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Compounder’s Low Headroom Doesn’t Stunt Its Growth
With careful planning and the use of bulk-bag discharging and conveying equipment, The Plastics Group of America was able to accommodate its latest expansion on one level of its 60,000-ft² building.
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Why—and How—to Baseline Your Extruder
If you don’t baseline your extruder, then how are you going to set realistic expectations for its performance? Here's how to get going.
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