The working conditions of two-color molds are mostly very harsh, and some often bear large impact loads, which leads to brittle fracture. In addition, abrasion resistance is also related to the type, quantity, form, size, and distribution of carbides in the material.Ģ. In general, the higher the hardness of the two-color mold parts, the smaller the amount of wear and the better the wear resistance. Hardness is the main factor affecting wear resistance.
Therefore, the wear resistance of the two-color mold material is one of the most basic and important properties of the mold. When the blank is plastically deformed in the mold cavity, it flows and slides along the surface of the cavity, causing severe friction between the cavity surface and the blank, which causes the two-color mold to fail due to wear. Improve efficiency and reduce costs: high response, high repeatability, and improved speed stability using 2 raw materials or 2 colors can be molded at the same time, greatly reducing process and labor to achieve cost savings parameter settings and system adjustments Very simple digital operation.ġ. The allowable deviation is generally between 0.01 and 0.00lmm.Įnergy-saving: The billet extraction system is adopted to reduce power consumption. The servo motor uses PLC technology for more precise control. The servo motor adopts permanent magnet technology, which is accurate and fast. High precision: The precision after transformation refers to the accuracy with which the output can follow the input. Due to the short production transition time, generally within 200ms, in order to achieve the requirements of overshoot, the front edge of the transition process is required to be steep, and the rising rate after energy-saving transformation To be large, the injection molding machine takes less than 0.03 seconds to reach 1500 revolutions. Good fast response: Fast response is one of the important signs of the dynamic quality of the servo system. Under given input or external interference, the system can reach a new equilibrium state after a short adjustment process, or return to the original equilibrium state. The supply of the injection molding machine is determined according to the demand of the injection molding machine. Good stability: The system is a double closed-loop control of pressure and flow. The injection molding machine can quickly adjust the supply according to its own needs, which can effectively improve the utilization rate of the injection molding machine's electrical energy, thereby achieving high efficiency and energy saving. Strong performance and energy saving: After the energy saving reformation of the injection molding machine, the system can respond quickly. (5) The oil circuit has ACC accumulator high-speed injection and closed-loop design. (4) Feeding, in addition to the standard hydraulic motor drive, there are ESD (ElectricScrewDrive) electric feeding structure (3) Clamping mold, standard type, vertical turntable type, horizontal turntable type, shaft type, manipulator rotation type, etc. (2) Mixed nozzles, special nozzles such as patterns, waves, flow marks, gradients, interlayers (1) Injection unit, parallel and parallel, horizontal and vertical L-shaped, Y-shaped single-cylinder injection structure In addition, the following requirements must be met: The two-color injection molding mating material must meet two basic compatibility conditions, adhesive compatibility and process compatibility. The latter has a good application range and good product quality, and high production efficiency is the current trend. The former does not require high equipment, but the production efficiency is low, which is basically only applicable to the molding of two materials that are not highly soft and hard rubber.
Narrow two-color injection molding refers to the use of a two-color injection molding machine to inject two different plastics on the same machine to complete the part, which is usually rotary. In the broad sense, two-color injection molding includes over-molding, which is achieved by ordinary injection molding machines and two injection molding. Two-color injection molding means that one part is realized by two kinds of plastic injection molding.
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