Valve gate hot runner technology produces better-quality plastic parts and faster cycle times by offering the most accurate gate control available. Valve gate systems are also an essential tool for automated injection molding because they enable faster mold start-ups, a wider processing window, and clean gates with no stringing or drooling of melt. [...]
Hot runner systems are such a common part of injection molds that hot runner suppliers must adjust component designs in order to meet increasingly stringent requirements in performance and materials, often adding to system complexity. […]
what is the function of cold-slug? It’s purpose is to store cold slug created intermittently by the nozzle due to heat loss and low temperature. Cold slugs could clog or slow down the material flow in runner and cavity and cause cold scars or cold marks on plastic part. A cold slug well is an [...]
but how to design a spure bush, I have some principles in the followin: […]
when a sprue allows the melt plastic material to flow into the cavity, that is called direct gate, in that case, the plastic part will be left with a trace by the sprue. […]
as for mold with rotary cores, how does it work? Let me tell you some details, in this technique, the quite different part is that both mold plates remain in position, only part of the ejector or nozzle side cavity with injected pre-molding is rotated.
Managing heat and delivering resin at a consistent temperature is the role of the nozzle. There are several features that one should consider before making a nozzle choice. It is important to maintain consistent heat due to the temperature processing window unique to today’s highly engineered resins. Engineered resins have an ideal target temperature that [...]
Managing heat and delivering resin at a consistent temperature is the role of the nozzle. There are several features that one should consider before making a nozzle choice. It is important to maintain consistent heat due to the temperature processing window unique to today’s highly engineered resins. […]