A kind of hi-b steel manufactured by inherent inhibitor method and slab low temperature heating process

A technology of heating process and inhibitor, which is applied in the field of silicon steel production, can solve problems such as the inability to produce Hi-B steel, insufficient inherent inhibitory power, and complicated production process, so as to promote the development of secondary recrystallization, wide range of process adaptability, The effect of increasing the amount of precipitation
CN106399822BActive Publication Date: 2019-04-02ZHONG NAT ENG & RES CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHONG NAT ENG & RES CENT
Publication Date
2019-04-02

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Abstract

The present invention belongs to the technical field of silicon steel production, and in particular relates to a Hi-B steel produced using an intrinsic inhibitor method and a casting blank low-temperature heating process. The liquid Hi-B steel contains the following chemical components in mass percent: 0.04-0.065% of C, 3.1-3.3% of Si, 0.08-0.60% of Mn, 0.01-0.03% of P, less than or equal to 0.01% of S, 0.025-0.055% of Als, 0.007-0.013% of N, and 0.1-1.0% of Cu. The Hi-B is prepared with a sulfide serving as an auxiliary inhibitor and by means of the casting blank low-temperature heating process. According to the present invention, not only is low-temperature heating used for a casting blank, but also the process is wide in application range and sufficient in inhibition capability; and the Hi-B steel obtained according to the present invention has a value of B8 as high as 1.988T, and a value of P17 / 50 as low as 0.836W / kg.
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Description

technical field

[0001] The invention belongs to the technical field of silicon steel production, in particular to a Hi-B steel manufactured by adopting an inherent inhibitor method and a billet low-temperature heating process. Background technique

[0002] Oriented silicon steel refers to a 3% Si-Fe soft magnetic material with a single {110}<001> texture (ie Goss texture). Because of its complex production process and strict manufacturing technology, it is often called "art" in steel materials. At present, the more mature production processes of Hi-B steel mainly include: first, the production of Hi-B steel by "inherent inhibitor + high-temperature heating process of billet"; the main technical parameters of the technical scheme proposed by JFE for the production of oriented silicon steel are: AlN +Sb+MnSe is used as an inhibitor, and the main components (mass fraction%) of the slab are C0.03~0.055, Si2.9~3.3, Als0.007~0.02, Mn0.06~0.08, N0.004~0.008, S0. 002~0.005, ...

Claims

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