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. […]
hot runner system is used for production of large parts or long flow length. It saves material, lowers the part cost, improves part quality, shortens the cycle time, and improves production yield. […]
A quality hot runner system is critical to the injection molding of consistent, high quality parts. One of the most important performance aspects of a hot runner system is its temperature uniformity. The temperature should be consistent across the hot runner system and should not vary with time. Even slight variations in temperature can have [...]
do you know a hot runner nozzle with a needle valve? That is so called valve gate, the gate mark produced by a valve gate tends to be clear, round and smooth, […]
we know a kind of heating nozzle is the shape of a needlepoint, when it penetrate into the gate hole, it will forms very minute mark, […]
but how to design a suitable nozzle, different product has different requirement, so you can see different dimension of gate mark on different product. […]
as for outer heated hot runner, let me tell you some, in this kind of system, the feeding runner of fused materials is heated exteriorly. […]
in an inner heated hot runner system, the most important element we will concern is the thermal uniformity of fused materials arriving at the cavity. It is determined by these three elements: […]
but what about inner Heated Hot runner? At first , please understand heating element, […]
thermal insulation runner is one of the simplest in hot runner system, at first, in the hot runner, because the molded materials have the poor thermal conductivity and the large section of the runner, […]