07-10
Gas assisted injection molding is a special injection molding technology developed on the basis of traditional thermoplastic injection molding technology, which is suitable for special performance req...
By using plastic injection molding, elastomers are created. It feels soft at room temperature. Elastomers have a variety of applications due to its great characteristics. Its application range has been widened to include construction, electronic and electrical, textile, automobile, machinery, leather and paper, chemical and light industry, metal and paint, medicine and medical treatment, in addition to its use as a special material in aviation, advanced technology, and military technology
One technique for Overmolding, known as Elastomer + Elastomer, involves injecting TPE adhesive material coated with other soft adhesive materials through an injection molding machine. One of the most crucial TPE overmolding processes or applications, Overmolding clearly demonstrates all of the material's practical properties. For example, certain handle goods are made of Elastomer + Elastomer. The addition of material enhances the product's grip and feel due to the TPE adhesive substance's unique comfortable touch.
TPE, commonly known as thermoplastic elastomer, is an injection-moldable material with excellent strength and resilience. TPE overmolding has many uses, protects the environment, is non-toxic and safe, and has good coloring.
TPU, also named as thermoplastic polyurethane, is a material with exceptional wear resistance, weather resistance, oil resistance, and elasticity. It is frequently used in high-consumption products like shoes and wheels.
TPR, full name of this substance is thermoplastic rubber elastomer, and it has a texture that is somewhat similar to both rubber and silicone. High elastic insoles, skin-friendly medical gloves, and children's toys can all be made from thermoplastic elastomers because of their softness and color stability.
Silicone. The silicone can be used to produce food processing containers, transmission orbit leather, and other sexual contact-related products because of its soft feel and non-toxicity. Silicone can tolerate temperatures between -40°C and 220°C.
Because the second piece is molded directly onto the first portion rather than having to entirely manufacture the two pieces separately and then combine them, Elastomer + Elastomer can reduce production time. For demanding applications, plastic Overmolding has additional advantages like:
Typically, Elastomer + Elastomer uses a Dual Shot injection molding machine, which has two injection molding stations. During the molding process, primarily:
Drying.
Hard plastic parts processing.
Establishing injection parameters.
Temperature setting for mold.
Five steps for mold removal cooling.
Elastomer + Elastomer is one of the methods of Overmolding, which is through injection molding machine to inject soft material coated on other soft adhesive materials.
There are various substrates that can be used in elastomer overmolding, such as plastics (ABS, polycarbonate, nylon), metals (aluminum, steel), and even other elastomers. The substrate should be compatible with the overmolding material and have sufficient surface preparation for bonding.
Its application range has been widened to include construction, electronic and electrical, textile, automobile, machinery, leather and paper, chemical and light industry, metal and paint, medicine and medical treatment.
The thickness of the elastomeric overmold layer can vary depending on the application and desired properties. It can range from a few thousandths of an inch (mil) to several millimeters.
