Now there are some children's toys, industrial products […]
Now there are some children's toys, industrial products, daily necessities, medical equipment, etc. do you find that they have more beautiful appearance colors than before. The two colors are wrapped together, which is very beautiful, and the hand feeling is excellent. This is the process result of two-color mold injection molding. What is the two-color injection molding? Now let's talk about this topic.
In fact, two-color mold is that two kinds of plastic materials are injected into the same injection molding machine, and the injection molding is divided into two times, but the product is only out of the mold once, and the first injection molding is the semi product of the product. In the injection molding of a color, the quality of a semi product is directly related to the problem of B-color plastic coating. If a product is not made well, then the flash will occur during the injection of B-color, which will affect the appearance of the product. Therefore, B color products must absolutely ensure the mold precision, because the product sealing position is a color product directly. And B-color injection molding machine last stage speed is absolutely slow, injection products to achieve perfect results.
Two color injection molding can be divided into two categories:
1. Mixed color injection mold
In other words, the two nozzles of the injection molding machine alternately inject materials of different colors into the same mold cavity to form decorative products without obvious boundaries,
2. Double layer double color injection mold
That is to say, two kinds of nozzles shoot two kinds of materials into the two-color products with obvious boundary successively, the first nozzle injects the material into the small cavity and then forms, then opens the mold but does not eject. The mold is closed after the mold is rotated 180 degrees, and then the second nozzle injects another material into the large cavity with the first material, so that the two materials are stuck together and then the mold is opened and ejected for the second time.