yes! You are right, while the melt plastic passes the spure, runners and gate, it fills out at elevated temperature and reduced pressure, due to friction. The melt plastic material gradually cools off in the cavity by heat transfer.
where is called gate in a feeding system? When melt plastic flows out of the nozzle of the injection molding machine into the mold, to a single cavity mold, […]
today we should discuss something about feeding system, because in mold design, […]
The tab gate —the most commonly used of the three—consists of a trapezoidal block milled into the parting line on an exterior surface of the part and is usually placed in a thicker wall section rather than thinner areas. Its position usually makes it easy to trim off, and while it typically leaves the largest [...]
as for three-plate mold, it has the following features: […]
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.
In order to achieve the shortest possible molding cycle, special cooling methods, added ejection features, special mold material and lubrication will be considered, on the other hand, some other elements may also have a significant impact on the molding cycle. For example Differences in the plastic, wall thicknesses, draft angles, methods of gating and so [...]
It also is important during the time you are packing the mold, to observe whether or not the gate is sealed. This is an area that causes a lot of trouble with new tools. They are absolutely sure—based on the long hold time they have used in the process—that the gates are sealed, […]