Electric shaver battery cover product is shown in Figure 1. Maximum external dimensions of product are 50.67 mm * 47.62 mm * 12.00 mm, average thickness of plastic hard glue is 2.00 mm, base material of hard plastic is ABS, shrinkage rate is 1.005, weight of hard plastic is 4.38 grams. Soft rubber is TPE. Technical requirements for plastic parts are that there shall be no defects such as peaks, underfilling, flow lines, pores, warpage deformation, silver lines, cold materials, and spray lines.
Tag: two-color injection molding
Electric shaver battery cover product is shown in Figure 1. Maximum external dimensions of product are 50.67 mm * 47.62 mm * 12.00 mm, average thickness of plastic hard glue is 2.00 mm, base material of hard plastic is ABS, shrinkage rate is 1.005, weight of hard plastic is 4.38 grams. Soft rubber is TPE. Technical requirements for plastic parts are that there shall be no defects such as peaks, underfilling, flow lines, pores, warpage deformation, silver lines, cold materials, and spray lines.
Inner layer of plastic part is ABS757 hard plastic, and outer layer is TPE65 soft plastic. External dimension is 148 mm*38 mm*55 mm. Using two-color injection molding, main appearance surface requires uniform color, no weld marks, shrinkage holes, and air bubbles are allowed. However, there is an obvious air pocket during production of original mold, which cannot be eliminated after repeated adjustments, as shown in Figure 1. When mold is modified for the first time, insert is designed at position of air cavity, gap is used for exhaust, but it is easy to be blocked and cannot be mass-produced. Therefore, find reasons through mold flow analysis, guide and demonstrate new modified mold program.
Two-color molds can combine two resins with different characteristics and colors into a single two-color product, which can reduce assembly and post-processing of molded products. Reduce cost of melting and printing, increase appearance and visual effect of product, improve grade and added value of product. Not only has function of non-slip and increased friction, improvement of flexible resin material is more ergonomic and feels better. Two-color injection molding product has high quality stability, easy control of product deformation, short molding cycle and high output. Loss can be 7% lower than that of overmolding, and product manufacturing cost can be 20%-30% lower than that of overmolding.
Two-color injection molding refers to a molding process in which two different materials are injected into same set of molds, so as to realize injection molded parts made of two materials. A complete two-color or even multi-color injection molding program requires integration of injection molding machines, molds, turntables, automation, and auxiliary equipment. Complex structure and non-standard customization of two-color multi-color injection molding machine are much higher than that of single-color injection molding machine.
Two-color injection molding is to realize a part with two kinds of plastic injection molding. Two-shot injection in a broad sense includes overmolding, which is realized by two injections on an ordinary injection molding machine. Two-color injection molding in a narrow sense refers to use of two-color injection molding machines to inject two different plastics on same machine to complete parts, and common one is rotary.
Two-color injection molding refers to a molding process in which two different materials are injected into same set of molds, so as to realize injection molded parts made of two materials. A complete two-color or even multi-color injection molding program requires integration of injection molding machines, molds, turntables, automation, and auxiliary equipment. Complex structure and non-standard customization of two-color multi-color injection molding machine are much higher than that of single-color injection molding machine.
Two-color injection molding technology is also called two-component injection molding technology. This is a technology that uses two plastic materials to mix and inject plastic products. Its technical connotation is actually to use a mold component to shape shape and to weld molding work in mold. Therefore, basic principle is to plasticize two different plastic … Continue reading Two-color injection molding technology and its development
According to current structure and quality requirements of two-color automotive parts, characteristics of two-color molds are introduced, and two-color engine baffle plate of an automobile is taken as an example. With help of UGNX software, key parts of two-color mold are designed respectively: gating system, molded parts and ejection system, etc. Automobile two-color mold designed according to this has been successfully tested, design results can be promoted and applied to design and manufacture of two-color molds for automobile exterior parts with same structural characteristics.
With development of automobile industry, demand for large-scale two-color automotive plastic parts continues to increase. Consumers' requirements for two-color automotive plastic parts continue to increase. Requirements of enterprises for mold injection efficiency are also increasing. Mold practitioners should understand how to design and manufacture two-color injection mold for large two-color automobile plastic parts. Two-color injection molds for automotive plastic parts have attracted wide attention from enterprises, and they account for an increasing proportion of plastic molds. Now, taking automobile air ducts as an example, injection mold design for two-color automotive plastic parts is introduced.
Gud Mould 