Today we introduce something about plastic extrusion molding, because many products around us belong to plastic extrusion molding, The plastic extrusion molding process usually begins with a thermoplastic in the form of pellets or granules. […]
In our daily life or work, We often use a variety of products and equipment, maybe you don’t know most of them are from mold industry, There are too many ways of molding, Extrusion molding is one of them, […]
Yesterday, we share some informations about the snap latches designed onto some plastic parts, today we want to share some experience about the design of the snap latches. […]
maybe you have some products at hand, they consist of some plastic parts, I think you might be interested in how to assembly and disassembly, when we put them together, it snaps into a groove or a slot in the mating part, […]
Different gate position and cooling time often build stresses, then lead to warping or twisting, but also we find other causes. in mold design, […]
For an Experienced molding engineer, that is a common problem, but for a fresh molding engineer, maybe It is worth mentioning, at first, in almost every plastic part, there are different thickness, thick sections cool slower than thin sections, […]
maybe there are some plastic products or products with plastic parts at hand, when looking carefully, you can find some of them have textures or lettering on their inner or external surface. […]
When we decide to make textures and lettering on the plastic parts, depth and draft should be considered, draft for texturing is somewhat dependant on the mold design and the specific mold texture. […]
Today I check some mold designs from some Young mold designers, I find a common and Easily neglected problem—they often forget to add drafts in some areas, maybe they don’t realize it’s importance, […]
Today we discuss how to evaluate the stress concentration factor in a plastic part, actually in last blog, you can find a small illustration, please look at it carefully. there is a Mathematical relationship between radius and thickness for the stress concentration factor. it means when R/T values lesss than 0.5, the stress concentration factor [...]