when you change the injection conditions during the injection process, such as injection force, time, and temperature. They will directly affect the shrinkage of the plastic material. For example, at the higher injection pressure, plastic parts usually shrink less.
as a new mold designer, the shrinkage of the plastic material must be understood well, not only each plastic material has an unique shrinkage rate, but also it may vary by it’s manufacturer, batch number, and water and volatile contents.
As a new comer, today I finally have a chance to design a plastic part, now I want to share something I gained during design: […]
Of course, after understanding product well, in mold designer side, he or she also allow to suggest changes, especially in the areas of fragile mold cores or thin ribs, not only to make the mold easier to build but also to extend the life of the mold and to improve its serviceability.
As a professional mold designer, it is very important to understand product well. For example, where and how is the product to be used? Required fits with other products, finish, strength, location of gate, ejector, etc.
Recycling is part of our everyday lives. At home, recycling is done almost exclusively as our way of protecting the environment. At work—especially with in a manufacturing company—the concept of recycling goes far beyond the curb-side service done at home. By choosing the right recycling program, mold manufacturers can help sustain both the environment and [...]
There are many factors to consider when selecting a stainless mold steel.The final plastic part requirements are the most important factors to consider when selecting the proper mold material. Cosmetic requirements, resin type and filler content are the main considerations along with the expected tool life. […]
Wire EDM machines are, by nature, fairly large users of energy, due to the fact that they employ electrical spark erosion. This requires a generator/power supply to convert the standard three-phase current into cutting pulses, and to run all the servo drive and pump motors to support the process. Ten or 15 years ago, many [...]
In order to make sure that the tolerances shown on the product drawing make sense and can be achieved. the mold designer must know molding characteristics of specified plastic well, […]
Our product designers often make mistakes in assigning tolerance to the product that are not necessary for the function of product. The proper method is to give a relatively large general tolerance and tighten up dimensions only where it is necessary for the function of the product or where it is required in the assembly [...]