Views: 0 Author: Nicole Publish Time: 2026-09-14 Origin: Site
If you work in the mould making or plastic industry, you see the word "Injection" everywhere—on your website, in RFQs, and during technical meetings. It stands for Plastic Injection Moulding, the backbone of how we make parts.
But when you're dealing with international clients, "Injection Types" can mean two things: the types of moulds you build, and the types of processes you use.
To help you communicate clearly with overseas buyers, we’ve broken down the essential English terminology. No fluff, just the practical terms you need for daily work.
The Core Concept: Plastic Injection Moulding
At its heart, Plastic Injection Moulding is the process of melting plastic pellets and injecting them into a steel or aluminium mould under high pressure. Once cooled, you get a solid, precise part.
It’s the standard for manufacturing everything from tiny gears to car dashboards.
Types of Moulds (By Product Application)
When a client asks what kind of moulds you make, here are the standard English terms used in the industry:
What it is: Moulds for automotive interior and exterior components.
Client Focus: Overseas car part buyers care most about Dimensional Accuracy and Material Certification . They often ask if the mould meets OEM Standards .
What it is: Moulds for two-wheeler components like fairings, panels, and headlamp housings.
Client Focus: Buyers look for Surface Finish and Aesthetic Quality , as these parts are usually visible.
What it is: Moulds for large household items like washing machine panels, AC units, and vacuum cleaners.
Client Focus: These are often large parts. Buyers will ask about your Clamping Force apacity and Cooling Efficiency.
What it is: Moulds for everyday items like storage boxes, chairs, and kitchenware.
Client Focus: The key here is Cost-Effectiveness and High Cavitation to keep the unit price low for high-volume production.
Types of Injection Processes (The "How-To")
Beyond the mould itself, how you inject the plastic matters. Here are the technical terms for different methods:
1. Standard Injection Moulding
The term: This is your regular, single-material, single-colour process.
When to use it: For 90% of structural parts and standard housings.
2. Overmoulding (2K / Two-Shot Moulding)
The term: Injecting one material over another (e.g., rigid plastic with a soft-touch rubber grip).
When to use it: Perfect for tools, toothbrushes, or medical devices where ergonomics matter. Use the keyword "Soft-touch" to attract buyers.
3. Insert Moulding
The term: Placing a pre-formed metal part (like a threaded insert) into the mould before injecting plastic.
When to use it: Ideal for creating strong, permanent assemblies (like a plastic part with a metal screw thread) in one step.
4. Gas-Assisted Injection Moulding
The term: Injecting inert gas (usually nitrogen) into the molten plastic to create hollow sections.
When to use it: Used for thick, heavy parts (like large handles or furniture) to reduce weight and prevent Sink Marks.
Key Services to Highlight
When describing your factory’s capabilities, use these precise terms:
Mould Design: Mention DFM (Design for Manufacturability) reports. Clients love seeing that you check for potential problems before cutting steel.
Mould Manufacturing: Highlight High-Speed CNC Machining and EDM (Electrical Discharge Machining).
CNC Machining: Use this for general metal cutting services.
3D Printing & Prototyping: Refer to this as Rapid Prototyping. It tells the client you can quickly validate designs before investing in an expensive mould.
Summary: The Takeaway
For international trade, "Injection Types" is about matching the right Mould to the right Process.
Whether you are making Auto Parts Moulds or doing Overmoulding, using the correct English terminology shows professionalism and helps you win the trust of global clients.
Get in touch with our engineering team today:
WhatsApp / Mobile: +86-18966109175
Email: renhangying@hmmouldplast.com / HMInjectionmould02@gmail.com
Website: https://www.hongmeimold.com
Factory Address: 2F, Building 14, Zone A, Yuxin Small and Micro Park, Xinqian Street, Huangyan, Taizhou, Zhejiang, China (Postal Code: 318020)
