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!
More News From This Category
Tue, 08 Jul 2025 04:16:33 +0000
Welcome to RobinsPost.com's celebration of Amazon Prime Day 2025! From July 8 to July 11, shoppers can enjoy four days of incredible deals across tech, fashion, home goods, and more. We've rounded up the best offers from Amazon and its top competitors to help you save big this summer.
What Is Amazon Prime Day?
Amazon Prime Day was launched on July 15, 2015 to celebrate Amazon's 20th anniversary.
Designed as a mid-summer shopping event, it offered exclusive deals to Prime members across multiple categories.
Why Amazon Created It
- To reward loyal Prime members
- To attract new subscribers and boost Prime memberships
- To test logistics ahead of peak holiday shopping seasons
- To boost sales during a traditionally slow retail month
How Prime Day Has Grown
- Started as a 24-hour sale in 9 countries
- Now spans multiple days globally across 20+ nations
- Includes events like Prime Big Deal Days in October
Prime Day has become a cornerstone of Amazon’s retail calendar, matching the hype of Black Friday, while shaping how competitors respond with their own summer sales events.
Read More ...
Mon, 07 Jul 2025 11:55:10 +0000
Semitrucks are built tough, but even the most robust rigs face their fair share of breakdowns. If you’re a driver or fleet manager, knowing what typically fails can help you stay ahead of costly repairs and dangerous roadside situations. Let’s break down the most common things that break in semitrucks and how to address each concern.
Read More ...
Sun, 06 Jul 2025 11:28:23 +0000
Are you moving out and need to learn how to prepare meals for yourself? Or are your current cooking skills lacking despite years of practice? You might be feeling overwhelmed if all you seem to be able to produce are burnt, bland, or poorly cooked meals. Fortunately, though cooking may be harder than it looks, it’s a perfectly achievable life skill if you invest enough time and practice.
Read More ...
Sat, 05 Jul 2025 15:23:15 +0000
Log splitters have become an essential tool for anyone dealing with the challenging task of splitting logs efficiently. Whether for residential use or large-scale operations, these machines save time and energy while ensuring precision. Some of the most common applications for log splitters are a little closer to home than people realize. We’re discussing them below.
Read More ...
Fri, 04 Jul 2025 15:21:37 +0000
Nothing says “thoughtful” quite like something personalized when it comes to wedding gifts. Personalized gifts demonstrate your effort and create a lasting memory for the happy couple. We’ve curated five unique and personalized wedding gift ideas that will truly stand out if you’re looking for ideas that go beyond the usual toasting glasses or linen sets.
Read More ...
