Stator Core Lamination Material

A stator core is built up as laminations.

Stator core lamination material. Electrical steel also called lamination steel silicon electrical steel silicon steel relay steel or transformer steel is specialty steel tailored to produce certain magnetic properties such as a small hysteresis area small. Stator laminations reduce eddy current by insulating the core. In a case scenario where the stator core is made from solely one solid piece of material the associated heat produced and currents will amount to a large sum resulting in a melted stator core. The inner surface of the stator is made up of a number of deep slots or grooves around the stator.

Heat often follows eddy current production. What is a lamination. Laminations sotek specializes in electrical steel laminations stacked stator core rotor core assembly manufacturing for motors and generators. As such there is a need to laminate the stator core and insulate each layer.

These steel transformer laminations vary in thickness s from between 0 25mm to 0 5mm and as steel is a conductor the laminations are electrically insulated from each other by a very thin coating of insulating varnish or by the use of an. Assuming a stator s core construction is the same as a transformer s construction this site has some good information including these little snippets. Past present and future john petro petro and associates consultants. Electrical steel also known as.

Segmented core method to amorphous material. The laminations are basically round with a round hole inside through which the rotor is positioned. Why is the stator core laminated. This forms an axial motor stator that when combined with coils and a permanent magnet rotor forms an electric machine that can be used as either a motor or a.

Here are some types of. The material is typically between 0 014 to 0 018 29 to 26 gauge thick and coated with a very thin layer of insulation as little as 0 001 thick. The stator core is made up of a stack of round pre punched laminations pressed into a frame which may be made of aluminium or cast iron. Thin silicon steel plates are stacked on top of one another around the center preventing eddy current flow.

Advanced materials for motor laminations. Stator core laminations have a very specific profile and the dimensions have exacting tolerances. The material is typically between 0 014 to 0 018 29 to 26 gauge thick and coated with a very thin layer of insulation as little as 0 001 thick. Few decisions in the design of an electric motor are as fundamental or have as far reaching consequences as the selection of the material to be used in the rotor or stator laminations.

Motor output heat rise weight and cost are only a few of the characteristics which are profoundly influenced by the selection of core material. Cools the stator core.