【正文】
n 200 g, and the results in the range mm The only reasonable. The electrical insulation for the volume of mm3, the quality of about 4 g, the length of segregation, is expected to design a 140 mm long, and there are four cavity, so: From B to 8 mm From H to 5 mm Small trapezoidal bottom width from 6 mm, and its side perpendicular to the surface at the direction of about 100 percent. In addition the use of the outlet plate (that is, we are talking about the templates and the middle of the plate with a plate between), the shunt must be made trapezoidal crosssection, for diversion, and mainstream Liu Ning Road Stripping. Actual realtime processing, monly used crosssection the size of two trapezoidal channel, a large model, a small model. As shown below: 2. Length of the main shunt Shunt to as short as possible, and less bending, injection molding process for the most economic use of raw materials and the injection of energy consumption, reduce the pressure loss and heat loss. Road will be diverted straight into the design, the chief of 140 mm. 3. The design of shunt Road diversion of the main streaming of the two territories, following the flow shape Deputy shunt in the vertical direction of the flow on the taper of the taper for unilateralism, 20, the very bottom diameter of φ6 mm, the level of the direction of flow from top to bottom two floors of the diameter of φ4 mm, these values are based on experience, the total length of . 4. Shunt the surface roughness As shunt in contact with the outer layer of plastic mold rapid cooling, only the center of the plastic melt flow better, because of segregation, the inner surface roughness Ra does not require very low, generally from about μ m can, This is not just the surface smooth and help melt the plastic outer cortex fixed cooling, and the center of the melt between the poor have a certain speed, to ensure that the melt flow is appropriate when the shear rate and shear heat . Actual processing, milling machines used to flow Milling Road, less for the province to die, saved processing texture on the trip. (Province Die: manufacturing mold a very important process, generally equipped with a professional women die province, with grinding machine, sand paper, Whetstone, such as grinding tools will mold cavity surface polished, Moliang, lower cavity surface roughness Degrees.) 5. Shunt layout form Shunt at the surface of the arrangement and the foregoing cavity are closely related to a variety of different forms of layout, but should follow two principles: that is, on the one hand with tight, narrow platesize mold the other processes The shortest possible, the clamping force to balance. The flow of the mold form a balanced layout C. Gate Design Gate, also known as the feed mouth, is connected with the cavity of the Road diversion channel, in addition to direct gate, it was pouring system in the crosssect