| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an annealing-separation agent for preventing the burning-sticking of both grain-oriented electromagnetic steel sheets, and an annealing method utilizing it, and a method for producing the grain-oriented electromagnetic steel sheet using this annealing-separation agent. <P>SOLUTION: The annealing-separation agent contains an Al compound in a state of solution or colloidal solution and further, a stable compound at a high temperature, and has ≤25 (mPa s) viscosity. Further, this annealing-separation agent is applied to the steel sheet and the coated steel sheet is annealed. Furthermore, a slab produced from molten steel containing prescribed components, is rolled to a finished sheet thickness to form the steel sheet and recrystallize-annealing and a first batch annealing with the above annealing method are applied and successively, a continuous annealing and a second batch annealing are applied by applying the second annealing-separation agent to produce the grain-oriented electromagnetic steel sheet. Therein, the recrystallize-annealing is applied either before applying a first annealing-separation agent or after applying the first annealing-separation agent and before batch annealing. Further, the coating amount of the first annealing-separation agent per one side surface is 0.005-5 g/m<SP>2</SP>. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
