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SINO ENGINEERING  GROUP(HK) CO., LIMITED
Beijing Add:18th  Floor ,Bright China Chang An Buliding  
158 Indoor Street,Jianguo Gate,Dongcheng  District ,Beijing China
Tel: +86 10-57196788Fax:  +86 10-57199088
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Steel Products

Electric Steel

Electric Steel
  • ProductsElectric Steel

Detailed

Electric Steel

 

 

 

variety

 Steel grade
standard/specification
Purposes & LYS product characteristics
Cold-rolled electric steel
LWB1300
LWB1000
LWB800
LWB600
Technology specification
It is delivered as cold-rolled coil, and also is used as substrate in heat treatment line of full-processed electric steel. After further treatment in full-processed electrical steel heat treatment line (decarburizing, annealing and coating) by the customer, its electromagnet is almost the same quality with the physical object of full-processed electric steel of the same grade.
Semi-processed electric steel
(CRML-6、CRML-49、S85)
Technology specification
It is delivered as cold-rolled and coil, and is used to make electromagnetic elements of compressor, small motor, etc.. Customers should first punching the sheet, then decarburizing and annealing, bluing, and eventually use it with lamination. It has low iron loss, good electromagnetic, low cost and was energy-efficient and environment-friend. After annealing by the customer, its typical electromagnetic value is iron loss 3.5-5.0W/kg, magnetic induction ≥1.72T.

 

 

       Main performance index
      1、 Semi-processed electric steel(CRML-64、CRML-49、S85)

 

 

Index
Hardness
(HV)
Iron loss
(W/kg)
Magnetic conductibility
Thickness deviation
(mm)
Roughness of surface
(μm)
Control value
100-180
≤5.8
≥2000
±0.020
0.8~2.0

 


      2、cold-rolled electric steel(LWB600、LWB800、LWB1000、LWB1300)

 

 

Index
Chemical composition
Thickness deviation(mm)
GAMA(mm)
Control value
Requirement can be satisfied
+0.010,-0.015
≤0.018

 


      3、 Hot-rolled substrate of electric steel(LGW800、LGW600)

 

 

Index
Chemical composition
Physical performance
Thickness deviation
Control value
Requirement can be satisfied
For reference only (not for delivery)
±0.10(except for 15 meters of both head and tail)

 

        Technical assurance of the key process
        1.Use HMPT—BOF process to produce low-S hot metal;
        2. Oxygen and temperature control of the hot metal from BOF;
        3. Deoxygenating and aluminum alloying (high acid-soluble aluminum) control in RH;
        4. [O],[N] and inclusion control in hot metal;
        5.CSP continuous casting parameters (shrouded casting, casting speed and cooling system) define;
        6. Hot rolling schedule and temperature control during rolling;
        7. Roller gap and gauge reduction control during hot rolling;
        8. Surface quality control, especially the control of scale and other defects;
        9. Reduction distribution control in cold rolling;
       10. Adopt roll shift, roll bending and convex roll;
       11. Leveling Elongation control;
       12.Level with dull roll.

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