Additives for annealing separation agents
JP7878622B1Active Publication Date: 2026-06-23JFE STEEL CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- JFE STEEL CORP
- Filing Date
- 2026-02-05
- Publication Date
- 2026-06-23
AI Technical Summary
Benefits of technology
【0011】 本発明によれば、製造される方向性電磁鋼板の鋼中Nbを除去できる。
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Abstract
To remove Nb, an impurity in the steel of the manufactured grain-oriented electrical steel sheets, the present invention provides an additive for annealing separation agents used in the manufacture of grain-oriented electrical steel sheets, wherein the titanium oxide content is 95.00% by mass or more and the Nb content is 0.001% by mass or more and 0.150% by mass or less. The above annealing separation agent additive preferably has an anatase rate of 20.0% or more. The above annealing separation agent additive has a specific surface area of 3.0 m². 2 / g or more 100.0m 2 It is preferable that the value be less than or equal to / g.
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Claims
1. An additive added to an annealing separation agent used in the manufacture of grain-oriented electrical steel sheets, The titanium dioxide content is 95.00% by mass or more. An additive for annealing separation agents, having an Nb content of 0.001% by mass or more and 0.150% by mass or less.
2. The additive for annealing separation agent according to claim 1, wherein the anatase content is 20.0% or more.
3. Specific surface area is 3.0 m² ２ / g or more 100.0m ２ An additive for annealing separating agents according to claim 1 or 2, wherein the amount is less than or equal to / g.