Conditions for using hot runner in the manufacture of two-color molds

  What conditions are required for using hot runner systems in the manufacture of two-color molds? Hot runner molds are molds that utilize heating devices to keep the melt in the runner from solidifying. Due to their shorter molding cycle and material savings compared to traditional molds, hot runner molds are widely used in all industrialized countries and regions around the world. So, what conditions are required for using hot runner systems in the manufacture of two-color molds?

1. The gate direction forms a certain or vertical angle with the mold opening direction.

One method to increase production without increasing the tonnage of the injection molding machine is to adopt multi-layer molds, which have multiple parting surfaces and are fully realized by a hot runner system.

3. Injection molded products with strict quality requirements.

4. Co-injection process for various plastics and colors.

Some industrial products have internal doors in deep parts, and their appearance requirements are very strict. When in use, they must not reveal any door marks, such as small parts like cosmetic lipstick covers, which are as large as car interiors. At this time, the sprue needs to be opened inside the part. When the depth of the part is too great, it is impossible to use cold runner sprues, and only hot runner nozzles can be used to extend into the interior of the part for injection molding.

Label: Two-color mold injection molding manufacturing