Standard Test Method for Measuring Edge Taper and Crown of Flat-Rolled Electrical Steel Coils

Importancia y uso:

5.1 Flat-rolled electrical steel master coils are usually slit into narrower coils. Usually these slit coils are punched or sheared into laminations of various shapes. The laminations are then uniformly stacked to become the cores of magnetic devices such as motors and transformers. Stacking of many laminations exhibiting excessive taper causes assembly problems and poor appearance. Nonuniform stack lengths in motors cause imbalance and noise. When the laminations are interleaved in transformers, taper causes air spaces within the core resulting in increased noise, increased exciting current, and higher core loss.

Subcomité:

A06.01

Referida por:

A1086-20, A0677-16R23, A0345-19

Volúmen:

03.07

Número ICS:

77.140.50 (Flat steel products and semi-products)

Palabras clave:

coupon; crown; edge taper; edge trim; gamma strip; master coil; slit coil;