Non Oriented silicon steel sheet

Non Oriented silicon steel sheet thickness: 0.35,0.50,0.65 mm width: 700-1260mm length < / = 2.0m or coil coil ID: 508mm

Non Oriented silicon steel sheet

Commonly known as silicon steel or silicon steel, silicon steel is very low carbon electricity, electronics and military industry, indispensable soft magnetic alloy of ferrosilicon, is also the largest output of metal functional materials, with its output accounting for one percent of world steel production, It is a silicon 0.8% -4.8% silicon iron alloy, silicon steel sheet by hot, cold rolled into a thickness of less than 1mm. Adding silicon iron resistivity and the maximum permeability, lower coercivity, core loss (iron loss) and magnetic aging, mainly used as the core of a variety of motors, generators and transformers.

 A silicon steel sheet classification:A silicon steel sheet according to their silicon content can be divided into two kinds of low silicon and high silicon. Low silicon silicon content below 2.8%, it has a certain mechanical strength, mainly used in the manufacture of motors, commonly known as motor silicon steel; high silicon silicon content of 2.8% -4.8%, which are magnetic, but more brittle, mainly with in the manufacture of transformer core, commonly known as the transformer silicon steel. Both in actual use, there is no strict boundaries, commonly used in wafer manufacturing large motors.

B, according to the production process can be divided into two kinds of hot-rolled and cold-rolled, cold rolled and can be divided into the grain orientation and grain-oriented two. Cold-rolled thickness uniformity, surface quality, higher magnetic, with industrial development, the hot-rolled piece be replaced by the cold-rolled piece (China has explicitly asked to stop using the hot-rolled silicon steel sheet, which is pre-mentioned hot to cold on behalf of ").

 Second, the definition of non-oriented silicon steel sheet:Non-oriented silicon steel sheet according to certain production processes, the formation of the orientation of the deformation texture crystalline structure of silicon steel.

 Third, the relationship between non-oriented silicon steel and oriented silicon steel sheet:1, both cold-rolled silicon steel sheet, but the silicon content. Cold-rolled non-oriented silicon steel sheet silicon content of 0.5% -3.0% cold rolled oriented silicon steel sheet silicon content above 3.0%.2, production technology and performance: non-oriented silicon steel sheet oriented silicon steel sheet technology requirements are relatively low.

 Non-oriented silicon steel billet or billet hot-rolled into a thickness of about 2.3mm coil. Manufacture of low-silicon pickling of hot rolled coils, a cold-rolled to 0.5mm thick. Manufacture of high-silicon products, hot-rolled band after acid pickling (first 800 ~ 850 °C normalization after pickling), cold-rolled to 0.55 or 0.37mm thick, in the mixed atmosphere of hydrogen and nitrogen in a continuous furnace annealed at 850 °C, and then The reduction ratio of 6 to 10% cold rolled to 0.50 or 0.35mm thick. Cold rolling reduction ratio allows annealing grain growth, lower iron loss. These two cold-rolled plates in 20% of hydrogen and nitrogen mixed atmosphere continuous furnace 850 °C final annealing, and then coated with the insulating film of the phosphate and chromate. After cold rolling to the finished thickness, the supply of state more than 0.35mm and 0.5mm thick strips. Cold-rolled non-oriented silicon steel Bs higher than that of grain oriented silicon steel.

Oriented silicon steel sheet oxide inclusions in steel content is low, and must contain C0.03 ~ 0.05% and the inhibitor (the second phase dispersion particle or grain boundary segregation of elements). Inhibitors prevent the initial recrystallization grain growth and promote the development of secondary recrystallization to obtain high (110) [001] orientation. Inhibitor itself magnetic harmful, so after the completion of the inhibitory effect, subject to high temperature purification annealing. Inhibitor of the second phase, the slab heating temperature must be increased to make the solution of the original coarse second phase particles, followed by hot rolling or normalization of small particle precipitation, in order to enhance the inhibition. The cold-rolled finished thickness of 0.28,0.30 or 0.35mm. Cold rolled oriented thin silicon steel with 0.30 or 0.35mm thick oriented silicon steel strip and then pickling, cold rolling and annealing is made. Compared with cold-rolled non-oriented silicon steel and oriented silicon steel than the non-oriented silicon steel loss is much lower, magnetism has a strong directional; superior high permeability and low loss characteristics in the rolling direction of the easy magnetization. Orientation strip in the rolling direction of the iron loss is only 1/3 horizontal permeability ratio of 6:1, the iron loss of about 2.5 times that of hot rolled 1/2, the permeability of the latter .

 3, Properties and Uses: The existence of two different performance characteristics in the direction of the difference in cold-rolled non-oriented silicon steel sheet main use is for generator manufacturing, it is also known as cold-rolled motor silicon. Cold-rolled grain oriented silicon steel with the main purpose is for transformer manufacturing, also known as cold-rolled transformer silicon steel.

 (1) silicon steel sheet performance indicators:A, low iron loss. The most important indicator of the quality of countries around the world to the core loss divided into grades, the iron loss, the lower the grade the higher the quality.

 B, magnetic induction. Can obtain higher magnetic sense of silicon steel in the same magnetic field, the smaller size and weight of the motor or transformer core used to make relative savings of silicon steel, copper, and insulation materials.

 C, high stacking factor. Silicon steel sheet surface is smooth, smooth and uniform thickness, and improve the manufacturing core stacking factor.

 D, the Punching good. Manufacture of small, micro motor core, which is more important.

 E, good adhesion and weldability of the surface of the insulating film to corrosion and to improve the punching.

F, magnetic aging phenomenonSilicon steel sheet is subject to annealing and pickling after delivery.

 (2) Standard:(A) Electrician hot-rolled silicon steel sheet (GB5212-85)Electrical hot-rolled silicon steel sheet with low carbon loss ferrosilicon soft magnetic alloy material, the hot-rolled into a thickness of less than 1mm sheet. Electrician, also known as hot-rolled silicon steel sheet hot-rolled silicon steel sheet.Hot-rolled silicon steel sheet according to their co silicon content can be divided into low silicon (Si ≤ 2.8%) and silicon (Si ≤ 4.8%) two kinds of steel.

(B) Electrical cold rolled silicon steel sheet (GB2521-88)Silicon content of 0.8% -4.8% of the electrical silicon steel as a material made by cold rolling.The cold rolled silicon steel sub-grain non-oriented and grain oriented two strip. Cold-rolled electrical steel with a smooth surface, uniform thickness, high stacking coefficient, good punching characteristics, and higher than hot-rolled electrical steel magnetic induction and low iron loss. With cold instead of hot-rolled with the manufacture of motors or transformers, its weight and size can be reduced to 0% -25%. Cold rolled oriented with better performance, and use it instead of hot-rolled or low-level cold-rolled transformer electricity consumption can reduce 45% -50%, and the transformer performance is more reliable.Used in the manufacture of motors and transformers. Typically, grain oriented cold-rolled as a motor or welding transformer, the state; grain-oriented cold-rolled as the core of power transformers, pulse transformer and magnetic amplifier.

The size of the steel sheet specifications: 0.35,0.50,0.65 mm in thickness, width 800-1000mm, length ≤ 2.0m

(C) of the appliance with hot-rolled silicon steel sheet (GBH46002-90)Appliances with the grades of hot-rolled silicon steel sheet J (home) D (electric) R (hot) said namely JDR 's. JDR after the number for the iron loss value * 100, the digital dash after the plate thickness (mm) * 100. Appliances with hot-rolled silicon steel sheet on the electromagnetic performance requirements slightly lower iron loss value (P15/50) the minimum value of 5.40W/kg. Generally not equipped to wash delivery.For a variety of electric fans, washing machines, vacuum cleaners, range hoods and other home appliances Differential.

Tolerance:

A, thickness 0.35 & 0.50mm : +/-8%

thickness 0.65mm : +/-6%

Vertical thickness 0.35 & 0.50mm: 5%

Vertical thickness 0.65mm: 6%

horizontal thickness 0.35 & 0.50mm: 0.020mm

Horizontal  thickness 0.65mm: 0.030mm

B, Cutting edge:

700mm </= Width </= 1000mm: 0 - 1.0

1000mm </= Width </= 1260mm:  0 - 1.5

Non - Cutting edge:

700mm </= Width </= 1000mm: 0 - 5

1000mm </= Width </= 1260mm:  0 - 5

parameter:

   Grade    Thickness  Theoretical     Iron Lost                 Magnetic                     Stacking

                                   Density                                         Induction                     Factor

                                                            < / =                        > / =                          > / =

                  (mm)         (kg/dm3)      (P15/50 W/kg)            (B50T)                        (%)

Standard checking:

Application Technology:

Mobile Phone Vibration Motor - B20AT1500                  

The Large Traction Motor - B65A470                               

Hybrid Power Automobile Drive Motor - B35AHEV-1  

DC Inverter Air Conditioner Compressor                        

Wind Power Generation                                                     

Antiproton and particle synchrotron                                 

High frequency of air-conditioning compressor            

Origin Mill:

1. Form "Bao Steel" 2. From "Tai Steel" (TISCO) 3. From "An Steel" 4. From "Wu Steel" (WISCO)

5. From " BX Steel "

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Non Oriented silicon steel sheet