Electrical steel

The term is commonly used

Specific total loss (iron loss)

At a given frequency f(Hz) and a given magnetic induction intensity peak Bm(T), the power consumed in the core sample per unit mass is expressed in W/kg. The symbol P(10Bm/f) is used for iron loss at a given frequency and given peak magnetization of magnetic induction intensity.

Peak magnetic induction intensity

When the peak value of AC magnetic field reaches a certain calibration value at standard frequency, the peak value of magnetic induction of the core sample is the peak value of magnetic induction, and the unit is T(Truss), which is expressed as B(0.01H).

Number of bending

The number of repeated bends before the first crack on the base metal is observed by the naked eye, which represents the ductility of the material.

rocker

The maximum distance between the longitudinal edge of the strip and the two ends of the measured edge.

Measurement of shear burrs

The thickness of the steel strip at the shear and the inside of the steel strip was measured, and the burr was calculated by the thickness difference between the two (t=t1-t2).

Resistance between the layers

Interlayer resistance is a parameter that describes the insulation performance of electrical steel sheet (strip) coating.

Overstow coefficient

The stacking coefficient is the percentage of the ratio of the theoretical thickness calculated from the mass, density, length and width values of the silicon steel sheet specimen to the stacking thickness measured at a certain pressure.

coating

The surface coating of electrical steel is a thin and uniform insulating coating with certain tension, which can improve electromagnetic properties and reduce eddy current loss. In addition, when manufacturing motor and transformer core, to electrical sheet shearing into blank, and then by argon arc welding and hot aluminum will be folded edge of a certain number of chips is fixed, therefore, not only requires electrical steel has good insulation and high resistance between the layers, and need to have good stampings, adhesion, weldability, can endure stress relief annealing.

Mechanical properties 

Oriented electrical steel

Product features

The electromagnetic performance

Low iron loss, high magnetic induction; The product has excellent application performance.

The thickness of the precision

Vertical and transverse thickness difference is small, stacking coefficient is high.

Processing performance

Easy to cut, slice size accuracy is high.

Insulation coating

Uniform color, good insulation, strong adhesion, good heat resistance, corrosion resistance. There are a variety of insulation coating for choice, tested by professional testing institutions, harmful substances content in line with the existing domestic and foreign environmental laws and regulations, including the European Union ROHS and REACH.

The brand indicates the methodThe steel grade comprises the following in the order given:

1) one hundred times the nominal thickness of the material in millimeters;

2) characteristic letter:

Q: capital letter of Chinese Pinyin"Qu”; G: capital letter of Chinese Pinyin"Gao”

RK: domain refined grades by laser scribingto be deteriorated when

subjected to heat treatment.

3) one hundred times the maximum value of specific total loss in watts per killogram at 1.7 T and 50 Hzunless otherwise specified.

Mechanical properties

Cold rolled unoriented electrical steel

Product Designation

The steel grade comprises the following in the order given: 1) one hundred times the nominal thickness of the material, in   millimeters; 2) W: capital letter of Chinese pinyin “Wu” 3) Characteristic letter:  W: capital letter of Chinese Pinyin “Wu”;   TG: capital letter of Chinese Pinyin “Te Gao”;   GP: capital letter of Chinese Pinyin “Gao Ping”  H: high permeability non-oriented electrical steel  K: non-oriented electrical steel for magnetic switch 4) one hundred times the maximum value of specic total loss in watts  per kilogram at 1.5 T and 50 Hz, unless otherwise specified

Surface Coating Designation

The surface coating is usually T4, and the grade with sufx such as "H4", "K", "L", "V" and "Z" refers to special coating  designation. H4: chromium free semi organic coating K: chromium free and water soluble thick coating, equivalent to C5 according to IEC 60404-1-1 L: chromium free and water soluble extreme thick coating, equivalent to C6 according to IEC 60404-1-1 V: chromium free and water soluble thin coating, equivalent to C4 according to IEC 60404-1-1 Z: chromium free, water soluble and self-bonding coating, equivalent to C3 according to IEC 60404-1-1.

Mechanical properties 

Non-oriented electrical steel for driving motors of new energy vehicles

Technical support

● To support customers in electrical steel grade selection for motor design, in order to achieve excellent performance and cost control. 

 ● To support customers in optimization of material and structure of motor core to achieve performance improvement or cost reduction. 

● To support customers in iron core manufacturing to achieve a good match between material and working facilities. 

● To recommend customers with new products and new technology to improve the competency of their new products

Technical service

● prototype iron core cutting and testing.

● Prototype iron core cutting service: To provide our customer  with electrical steel material, iron core cutting service to avoid  prototype punching die building investment in early stage of  new product development to shorten the R & D cycle.

● Properties testing: Iron core testing, motor testing.

Material Selection

To support customers for electrical steel selection for design of  traction motor of clean-energy vehicle considering cost and performance, comparison would be done according to core design,  manufacturing process design by simulation and experiments to  realize an optimized performance price ratio.

Magnetic and mechanical properties

The STEEL described provides stamping, swing shearing, leveling, laser cutting, laser welding and strip processing, and we also have a professional logistics team to provide you with a full range of services.

Let us know if you're interested.