Analysis Of The Stress Cone

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Analysis of the Stress Cone The stress cone is shown in Figure 3-6 Stress cone, which has a shape of a cone, is the traditional technique to control the stress at the electrical termination of cables. It brings the stress to a subtle stop. To eliminate fires or electric surges by the high concentration of flux between the conductor cable and shield termination, stress cone must be install properly on middle to high voltage (46kV or up) systems. For this particular experiment stress cone is being made of a silicone rubber to provide reliable insulation against different voltage ratings. Silicone rubber is a preferred material for cable accessories due to its excellent mechanical and electrical properties. According to the termination type, there are two methods to manufacture …show more content…

Relatively new injection molding (first machine was built in 1930s) is often used in mass-production and prototyping. 4.3.1 The Injection Mold Process Even though injection molding seems to have a quite simple process, in order to successfully manufacture a product involves more complex steps. However, before pre-dying, the color, particle size and uniformity of the silicone rubber should be checked, and also the moisture content should be less than 0.02% before forming. Mainly, there are four steps in injection molding process, which also called injection molding cycle. 1. Clamping Clamping unit is one of the three basic parts in injection molding machine. Main purpose of the hydraulically powered clamping unit is to keep the mold halves press closed during injection and cooling. Before pouring material into the machine hopper, the two mold halves (movable half and fixed half) must be firmly closed by clamping unit. According to the size of the machine, changes the required time for clamping. The time can be estimated from the dry cycle time of the

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