PEEK (Polyether Ether Ketone) is a high-performance thermoplastic known for its exceptional mechanical strength, chemical resistance, and thermal stability. However, injection molding PEEK is far more challenging than molding common plastics like ABS or PP. Due to its high melting point (~343°C), high crystallinity, and sensitivity to cooling rates, deformation (warpage or shrinkage) is a common headache.
If you're struggling with warped PEEK parts, don't worry — you're not alone. The good news is that deformation can be minimized or even eliminated with the right approach. Here’s a systematic guide to achieving dimensionally stable PEEK injection molded parts.
A medical precision micro injection mold is specialized for manufacturing ultra-small, high-cleanliness, and biocompatible components used in minimally invasive medical devices, diagnostic equipment, and disposable medical accessories. Medical-grade ETFE is the ideal fluoropolymer for micro medical molding due to its excellent biocompatibility, high transparency, sterilization resistance, and stable shrinkage performance. A professional medical precision micro injection mold must follow strict minimum size standards and medical-level precision control to produce qualified ETFE micro parts for clinical use.
READ MOREIn precision injection molding, material selection directly determines mold lifespan, production efficiency, product yield, and final part performance. Among high-performance fluoroplastics, PTFE (Polytetrafluoroethylene) and ETFE (Ethylene Tetrafluoroethylene) are two widely used materials with unique properties. Although both belong to the fluoropolymer family and offer excellent corrosion resistance and non-stick performance, their mold adaptability, processing methods, and industrial application scenarios differ drastically.
READ MOREYou‘ve just ejected a fresh batch of parts, but instead of nice, flat components, you’re looking at twisted, bowed, or curled scrap. This is warpage – one of the most frustrating and costly defects in injection molding.
Warpage happens when different areas of a part shrink unevenly during cooling. The good news is that with the right mold design and process control, it is entirely preventable.
Let‘s break down why warpage happens and how to fix it.
A practical guide to choosing the right gate type, avoiding common defects, and optimizing your plastic part quality.
If you've ever dealt with injection molding defects like jetting, burn marks, or sink marks, chances are the root cause traces back to one small but critical feature: the gate.
The gate is the tiny opening that allows molten plastic to enter the mold cavity. It might be small, but it controls everything – part appearance, dimensional stability, strength, and cycle time.
In this guide, we'll walk through the most common gate types – from workhorse edge gates to automated pinpoint gates – and show you exactly how to design them for success.
If you've ever seen small burn marks on the edge of a molded part, or noticed incomplete filling at the end of a rib, you've likely encountered trapped gas. It's one of the most common defects in injection molding, yet many shops struggle to solve it consistently.
The good news? Most trapped gas issues can be fixed without expensive mold modifications. The bad news? Many operators reach for the wrong solution first.
Let me walk you through what trapped gas actually is, why it happens, and most importantly — how to fix it, starting with the simplest adjustments.
