Silicon iron has a relatively high permeability and the increased resistivity due to the silicon helped reduce the eddy losses.
Silicon steel sheets are used to reduce the.
Core losses windage and friction losses stator losses rotor losses and stray load losses.
But in fact when making silicon steel sheet iron 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.
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.
Be divided into five major categories.
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.
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.
In general such products have good punching characteristics and are used in a variety of applications including small rotors stators and small power transformers.
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 by single stage shear based processing.
Process enables production of steel alloy sheet for use in electric motor cores energy losses in electric motors can.
The right welding process can help improve results with.
These steels are available in an array of grades and thicknesses so that the material may be tailored for various applications.
When low carbon steel is alloyed with small quantities of silicon the added volume resistivity helps to reduce eddy current losses in the core.
In order to reduce these eddy currents about 4 to 5 of silica impurity is added so that the conductivity of steel decreases.
Silicon steels are probably of the most use to designers of motion control products where the additional cost is justified by the increased performance.
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.
This not only reduces the eddy current loss lowers the temperature rise but also saves the material of silicon steel sheet.
Use pulsed mig welding.
Reheating is commonly used to soften steel before hot rolling into ultra thin silicon steel sheets referred to as electromagnetic steel.
