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Author: MULAN -Plastic Molding Manufacturer
What should be paid attention to in injection mold processing? Where is its key? Today, the mold processing manufacturer will talk to you about this issue, hoping to help you. In the mold, the micro-injection mold about precision mold processing equipment is much higher than the traditional injection mold molding: Injection molds generally have two trends in mold processing: one is to use mirror spark machining to ensure high precision mold processing Precision, graphite electrodes should be used for EDM, because the loss of graphite electrodes is much smaller than that of general copper electrodes. Another method compared with ordinary processing is to use electro-smearing, choose electro-forming technology to ensure very high precision, but the defect is the length of the processing cycle, and each point should be injection-molded processing, and there are subtle damages in production , cannot be corrected, only the damaged mold can be replaced.
In the mold, the mold temperature is also a very important parameter for micro-injection molding. In the face of high-end demand, the current comparative practice is to borrow the concept of high-gloss injection molding and introduce a rapid heating and cooling system: In theory, high temperature introduction of injection molds is very useful, avoiding thin-wall filling, the disadvantage However, excessive mold temperature will bring New problems, reducing deformation, shortening, etc., so it is appropriate to introduce a new mold temperature control system. In the injection molding process, the mold temperature can be advanced (it can exceed the melting point of the plastic used), so that the melt can quickly complete the cavity, avoiding the temperature drop during the filling process.
Too fast and incomplete filling; when removed, the mold temperature will drop, stay slightly lower than the heat distortion temperature of the plastic, and open the top. In addition, due to the quality of the millennium material product due to micro-injection molding. As long as less than 10% of the material is injected into the injection molded product, there are many casting systems, so it is possible to choose an injection mold to use the casting system.