Pioneer Plastech
written by Joyce W.
edited by Joyce W.
Injection molding is a key process in
manufacturing, used to make accurate and durable parts for products like cars,
electronics, and everyday items. One common problem in this process is sink
marks – small dents on the surface of molded parts that can make them look
bad and even affect their performance.
What Are Sink Marks?
Sink marks are tiny dents or dips on the
surface of a plastic part made by injection molding. They happen when the
plastic cools unevenly, especially in areas where the part is thicker. Even
though they might look small, sink marks can cause issues like product
rejections and higher production costs.
Why Do Sink Marks Happen?
How Can We Fix Sink Marks?
How to Prevent Sink Marks in the Future
Conclusion
Sink marks might seem like a small issue,
but they can have a big impact on product quality and costs. By understanding
why they happen and how to fix them, you can create better parts and improve
your manufacturing process. With careful design, smart material choices, and
advanced tools, you can avoid sink marks and ensure your products meet the
highest standards.