I want to tell you the Shortcoming of traditional injection molding in water cooling, because traditional water-cooled injection molds are made of steels via the material removal process, […]
please remember, generally the rotary mold systems are more expensive, and the mold need two cavities and the injection machine need a large distance between tie bars in order to be rotatable, but rotary mold will offer greater design freedom.
for every application, when we choose a molding method for a particular molded part, it must be established individually from technical and economic aspects. […]
this kind of molding method has following disadvantages: […]
the most important thing is that kind of molding method does not need to open the machine and further transport of a molded part in one mold. […]
do you know core-back mold? I mean a mold with retractable slides and cores, that kind of mold structure has some attractive advantages: […]
but that kind of mold with transfer or insert technique has it’s own disadvantages, because it needs precise centering of the pre-molding, […]
here is a mold with transfer or insert technique, it also can mold two-colored materials or two different materials in one mold, […]
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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.