Optimize prescription of plastics to avoid shrink mark
Optimize prescription of plastics and prefer use resins with low shrinkage; reduce dosage of recycled materials; dry the material as much as possible; […]
Optimize the structural design of injection products to avoid shrink mark
The injection products should not be too thick and when necessary the stiffening rid can be added to reduce wall thickness; the wall thickness must be kept as uniform as possible and the shape and structure should be simple and symmetric; […]
Introduction to shrink mark and shrinkage porosity
Both the shrink mark and shrinkage porosity are defects of injection products due to the molding shrinkage at thick walls where no sufficient follow-up compensation is made. During the injection process, the surface layer of products often condenses first, followed by the center layer, which will cause sinking on the surface of parts with thick [...]
what is welding mark?
as an injection molding engineer, he should be very familiar with welding mark, the thread mark formed at the front confluence of two or more melt flows in the cavity is called welding mark or welding line. […]
How to treating welding mark in injection molding, mold design and product design
In actual engineering practice, commonly-used methods for treating welding mark include: […]
Adverse factors of plastic material and injection mold affect injection filling
Adverse factors of plastic material and injection mold are in the following: […]
Adverse factors of injection machine and product structure design affect injection filling
Adverse factors of injection machine and product structure design are in the following: […]
Plastic parts mean cost savings
Maybe you don’t understand when you look at this title, at first, Plastic materials fall into two basic types of process groups: Thermoset and Thermoplastic. […]
plastic product design has more design options
please don't limite your design when you design a plastic part, because it Increases your design options and requirements and still keep costs down, and plastic is easy in producing complex shapes. you know, when we design a metal product, there are many many design limitations if we put several metal stampings or castings fastened [...]
Plastic products are easy to gain good structural strength
As a professional engineer, he(she) really knew how to choose the right materials to build a strong house. The right plastics make your products light-weight, easier to use and yet possess increased structural strength. If we use engineering grade materials in our products, Plastic parts can be stronger than metal parts. In structural design of your [...]