Recently, we have developed several porjects, which will be a plastic container with sealing. So, all customers imposed that "No warpage or shinkage is allowed on the contact surfaces". Here in this article, Qiqiangsheng Moulds will share the tips about how to solve the warpage & shrinkage problems for plastic molded parts. Usually, the molding defects were caused by below points: 1, Part desi...

There are many common quality defects when it comes to injection molding. Such as flow lines, warpage, air trapped and sink marks, etc. Among them, uneven shrinkage is one of the most common of defects in injection molding, let’s talk about what causes uneven shrinkage of injection molded parts in this article. There are some reasons for uneven shrinkage as below: 1. Melting Temperature The differ...