CRNO Silicon Steel
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Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of crno silicon steel in China. If you're going to wholesale high quality crno silicon steel made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
Cold Rolled Non-Oriented Silicon Steel, also known as CRNO steel, is a type of electrical steel that is widely used in the manufacturing of various electrical components and equipment. It is specifically designed to have low magnetic losses and high electrical resistance, making it ideal for applications that require efficient electrical performance.
Cold Rolled Non Oriented Steels (CRNO) are suitable for rotating machines like Motors, Generators as well as small transformers. Silicon content in this kind of steel ranges from 1 to 2.99 %. CRNO steels have similar magnetic with their grains running both transversely and in the rolling direction. Quality CRNO always depends on its superior properties like low core loss, high permeability, superior coatings suitable for welding with consistent thickness maintenance.
Cold rolled Non oriented silicon steel
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Product Name
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Cold Rolled Non-Oriented Silicon Steel
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Standard
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M310, M350, M470, M600, M800, M1300
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Thickness
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0.35mm-0.5mm
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Width
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10mm-1250mm
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Length
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Coil Or As Required
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Technique
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Cold Rolled
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Surface Treatment
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Coated
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Application
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Widely used in transformers, generators, various household motors and micro-motors, etc.
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Special Use
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Silicon Steel
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Sample
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For Free (Within 10 KG)
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Cold Rolled Non Oriented Electrical Steel Production Process
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smelt |
Silicon steels is mainly smelted by oxygen converter, combined with vacuum treatment of molten steel and AOD technology during smelting and aluminum (0.2-0.5%) content to meet the requirements of different magnetic properties. The silicon and aluminum content of high-grade silicon steel sheets should be increased accordingly. Carbon, sulfur and inclusions should be minimized. |
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rolling |
The magnetism, surface quality, filling factor and punchability of cold-rolled silicon steel sheets are better than those of hot-rolled silicon steel sheets, and they can be produced in coils. Therefore, some countries have stopped producing hot-rolled silicon steels sheets since the 1960s. China adopts a low temperature of about 900 ℃ one-time rapid hot rolling and stacking annealing under the protection of hydrogen to manufacture hot-rolled silicon steels sheets. The yield is high, and the surface quality and magnetic properties of the finished products are good. |
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pickling |
The oxides of the hot-rolled steels strip are removed by the descaling machine and the hydrochloric acid tank to prevent surface defects of the cold-rolled finished product. |
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cold rolling |
In order to ensure the thickness and material for different purposes, the deceleration ratio is set at 40%-90%, and advanced control equipment such as automatic thickness control and automatic shape control is realized. |
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annealing |
It is a process of softening the material of the steel strip hardened in the cold stamping process. Through metal heating and rapid cooling, steel for deep processing and high-tensile steel are produced, and boxing (cover annealing) annealing and continuous annealing methods are adopted. |
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insulating coating |
When the silicon steels plates is processed into an iron core, in order to improve its processing performance and prevent eddy current loss equivalent to the multiplication of the thickness of the steels plate, continuous coating equipment is used to spray insulating coating liquid on the upper and lower sides of the steel plate. |
Grain Non oriented silicon steel factory
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