Two-Color plastic Lighter handle Injection Mould

Two-color injection molding generally refers to the molding of two different colors or different types of plastics. Because the two groups of injection units and nozzles of the two-color machine are separated, the color of the finished product is mostly two-colored and not mixed. The two-color mold can reduce the assembly and post-processing of the molded product, save costs, increase the aesthetic appearance of the product, and increase the added value of the product. The two-color product has been used around everyone's periphery.

Most two-color lighter handles are made from plastic injection molds with rotating shafts.

The rotating shaft process or the rotating core process means that the two-color plastic injection mold is not rotated by the injection molding machine, but the core is rotated by the injection molding machine or the injection mold cylinder. When the injection molded part is made into the second color, the controller of the injection molding machine will send a signal of the core pulling system, rotate the first core of the mold to the second position of the core, and then perform the injection of the second color.

Of course, the two-color lighter mold design and structure are more complicated than the single-color mold. The mechanics of the core should be very precise to avoid damage during the second injection. The rotating core should have high quality and durability to ensure mold performance and quality. At the same time, the full hot runner of each cavity is considered to improve the surface quality of two-color plastic products. Generally speaking, extensive experience in manufacturing mold design and two-color plastic injection molds is very important for obtaining high-quality two-color plastic products.

Lighter handles are mostly made of ABS, ABS resin (acrylonitrile-butadiene-styrene copolymer, ABS is an acronym for Acrylonitrile Butadiene Styrene). It is one of the common types of plastics. It is a high strength, good toughness, easy to process The thermoplastic polymer material has a glass transition temperature of about 105 ° C (221 ° F). Easily flow and color materials. Generally, as the amount of SAN component increases, the strength and rigidity of ABS will also increase; if the rubber content increases, the strength, hardness, heat resistance and rigidity of ABS will decrease. In short, this material can be divided into injection molding grade and extrusion grade, and then divided into medium, high and extra high impact resistance grade, there are other grades such as high heat, electroplating and fireproof grade.

Generally speaking, ABS is a hard and tough material that has high impact resistance and low water absorption even at low temperatures. It is a good insulator and its electrical properties are not affected by humidity. Usually made of transparent or translucent color, plastic parts have luster, stable size and high mold surface covering ability. The surface is not easy to wear, but the aging resistance is low. Better heat resistance and impact strength than TPS; better warping modulus than PP.

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