Silicon Steel Sheets Are Used To Reduce The

Be divided into five major categories.

Silicon steel sheets are used to reduce the.

Use pulsed mig welding. Since hot rolled silicon iron has approximately the same magnetic properties in all directions in the plane of the laminations a simple 90 butt overlap corner joint could be used for stacked cores. Sheet metal comes in a range of thicknesses and people may have different definitions of what they consider sheet metal to be depending on their application. Reheating is commonly used to soften steel before hot rolling into ultra thin silicon steel sheets referred to as electromagnetic steel.

In general such products have good punching characteristics and are used in a variety of applications including small rotors stators and small power transformers. Goss the early inventor of the cold rolled grain oriented silicon steel or crgo steel manufacturing process in 1933 gave the idea in his own words i have experimental evidence which leads me to believe that there is an apparent relation between the grain size and ductility of a specimen and its magnetic properties. When low carbon steel is alloyed with small quantities of silicon the added volume resistivity helps to reduce eddy current losses in the core. If pure steel is used as a magnetic core in a transformer it acts as a good conductor and whenever a time varying flux passes through core circulating current are produced and are known as eddy currents.

In theory if the thickness of the silicon steel sheet is thinner to reduce the eddy current the narrower the spliced strips the better the effect. In order to reduce these eddy currents about 4 to 5 of silica impurity is added so that the conductivity of steel decreases. High heating rates are required to reduce the time spent in the reheating furnace to increase the efficiency of producing ultra thin electromagnetic steel sheets and decrease fuel consumption. Silicon iron has a relatively high permeability and the increased resistivity due to the silicon helped reduce the eddy losses.

Until the late 1930s thin laminations of hot rolled silicon iron often referred to as silicon steel were used almost exclusively in transformer cores. These steels are available in an array of grades and thicknesses so that the material may be tailored for various applications. For the purposes of this article the term sheet metal refers to material 1 8 inch thick or less. But in fact when making silicon steel sheet iron core.

This not only reduces the eddy current loss lowers the temperature rise but also saves the material of silicon steel sheet. Core losses windage and friction losses stator losses rotor losses and stray load losses. Semi processed nonoriented silicon steels are used for applications in which the customer does the stress relief anneal. The right welding process can help improve results with.