Plastic injection molding is a vital process in our modern society, and yet not many people know it exists. If you drove a car to work today, or use a coffee maker for your morning cup of joe, you’ve probably already interacted with injection molded parts today! Read on to learn how plastic injection molding works and why it’s so useful.
Designing a Mold
Before injection molding can begin, you must first design a mold. This is like a negative of your final product. Think of it as an ice cube tray. A mold has empty slots you can fill with molten plastic and cooled to get your final product. The best choice for mold design is to work with a professional injection molding company, as they can help you determine qualities like thickness and material.
Heating and Feeding Thermoplastic
Once you have a mold, the injection molding process starts with pellets of thermoplastic. When you heat these pellets, they melt down and become liquid. This liquid plastic is fed into the barrel of the machine, ready to be injected into your mold.
Injection, Holding, and Cooling
A screw in the injection molding machine pushes the molten plastic through a gate and into the mold, filling the mold completely. Then, the mold holds for a set period and the screw pulls back. Finally, the part cools within the mold before the mold opens and the part drops onto a conveyor belt, ready for its next destination.
Materials for Injection Molding
Many people do not know how to pick the right material for injection molding. There are tons of thermoplastics used for injection molding, from polypropylene to polycarbonate to low-density polyethylene. Each material has unique properties that make them suited for different applications.
Now that you know how plastic injection molding works, determine whether this is the right process for your business. Many industries make great use of plastic injection molding already—perhaps yours could be one of them!
Super Bowl LX | Seattle Seahawks vs. New England Patriots | Levi’s Stadium, Santa Clara | February 8th 2026 3:30 PM PST
Why this matchup matters
Super Bowl 60 isn’t just another championship game; it’s a collision between a reborn contender from the Pacific Northwest
and the most decorated dynasty of the modern NFL era. The Seattle Seahawks return to the Super Bowl for the first time
in 11 years, carrying a new identity on defense and a quarterback on a redemption arc.
Across the field, the New England Patriots arrive in their 12th Super Bowl, already holding the record
for most appearances and chasing a historic seventh Lombardi Trophy.
For Seahawks fans, this is about rewriting the memory of Super Bowl XLIX. For Patriots fans, it’s proof that their legacy
didn’t end with Tom Brady and Bill Belichick. The stakes are emotional, historical, and deeply personal on both sides.
Medical equipment represents a huge investment for any healthcare facility. You rely on these devices to provide patient care, so breakdowns disrupt operations and strain budgets. These tips for extending the lifespan of medical equipment can boost performance and save you from costly replacements. Learn the easy steps you can take to keep your critical equipment in great condition.
Your car's clutch works hard every time you drive. It bridges the gap between the engine and the transmission, managing the power transfer that gets your wheels turning. While factory clutches handle daily driving well, they can struggle when you add more power or change your driving habits. If you’re thinking about upgrading your car’s clutch, read our guide first about what to know before you make the investment.
Getting behind the wheel should feel second nature, yet many experienced drivers occasionally face unexplained hesitation. It is not always about heavy traffic or aggressive drivers in the next lane. Often, subtle environmental and mechanical details chip away at your assurance without you realizing it. To boost your driving confidence, let’s examine the hidden factors that impact it.
The beverage industry moves at an incredible speed. Consumer thirst for new products drives high demand, placing immense pressure on packaging lines to perform flawlessly. Every second counts on the production floor because a minor delay creates a ripple effect that hurts the bottom line.
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