Atmosphere control process of high-magnetic-induction oriented silicon steel with excellent magnetism
A high magnetic induction orientation, excellent technology, applied in the direction of manufacturing tools, heat treatment process control, metal material coating process, etc., can solve the poor magnetic properties of high magnetic induction orientation silicon steel, the unusable high magnetic induction orientation silicon steel Insensitivity to low-quality oriented silicon steel and other problems, to achieve the effect of improving the accuracy of atmosphere control, reducing FeO content, and improving smelting efficiency
Pending Publication Date: 2021-04-09
海安华诚新材料有限公司
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[0003] When the existing high magnetic induction oriented silicon steel is produced, some atmosphere gas is required, and the existing process cannot effectively control the input of the atmosphere, resulting in inferior products of the high magnetic induction oriented silicon steel. , leading to the waste of raw materials, and the magnetic properties of the high magnetic induction oriented silicon steel produced by the existing pr
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[0022]Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.
[0023]Seefigure 1, An atmosphere control process of high magnetic alignment silicon steel, which is excellent, including the following steps:
[0024]Step 1: Smelting, smelting through the converter and RH refining to obtain molten water, passing into the air during smelting and sets the total amount of air volume of 100-300 nl / min, and the oxygen content in the air is 20-21%. between;
[0025]Step 2: Continuous casting, the steel water is pouring at a lateral heat of less than 50 ° C, and the pulley speed is 0.8 to 1.0 m / min, and ...
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The invention relates to the technical field of oriented silicon steel, and discloses an atmosphere control process of high-magnetic-induction oriented silicon steel with excellent magnetism. The atmosphere control process comprises the following steps of 1, smelting, specifically, smelting in a converter and RH refining to obtain molten steel, introducing air in the smelting process, and setting the total air inflow to be 100-300Nl/min and the oxygen content in the introduced air to be 20-21%. According to the atmosphere control process of the high-magnetic-induction oriented silicon steel with the excellent magnetism, the content of oxygen and the content of nitrogen in a certain proportion are added in different processes, the atmosphere control precision of each stage is effectively improved, therefore the obtained final high-magnetic-induction oriented silicon steel is excellent, the influence of air pressure, flow and other factors on the magnetic effect of the final high-magnetic-induction oriented silicon steel is avoided, the FeO content in the slag is reduced, the steel recovery rate is increased, the service life of a furnace lining is prolonged, the effect of reducing the production cost is achieved, accurate atmosphere control is conducted, the smelting effect is better in the smelting process of the high-magnetic-induction oriented silicon steel, and the magnetism of the smelted high-magnetic-induction oriented silicon steel is more excellent.
Description
technical field [0001] The invention relates to the technical field of oriented silicon steel, in particular to an atmosphere control process of high magnetic induction oriented silicon steel with excellent magnetic properties. Background technique [0002] Silicon steel has excellent magnetic properties such as low loss and low magnetostriction, and is the most important magnetic material in the electric power and electronics industries. Silicon steel is usually divided into oriented silicon steel and non-oriented silicon steel. Among them, the grain-oriented silicon steel utilizes the secondary recrystallization abnormal growth of the crystal grains to make the finished product have a preferred orientation of Gaussian texture. Due to the orientation characteristics of the finished crystal grains, the axis of the internal lattice is as parallel as possible to the rolling direction. This material has good magnetic permeability in the rolling direction and can obtain high ma...
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Login to view more IPC IPC(8): C23C8/26C21D1/26C21D1/74C21D8/12C21D11/00
CPCC23C8/26C21D8/1222C21D8/1261C21D8/1255C21D8/1277C21D8/1283C21D1/26C21D1/74C21D11/00
Inventor 严九江
Owner 海安华诚新材料有限公司
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