摘要:
A non-oriented electromagnetic steel sheet contains 0.005 wt. % or less C, 0.2 wt. % or less P, 0.005 wt. % or less N, 4.5 wt. % or less Si, 0.05 to 1.5 wt. % Mn, 1.5 wt. % or less Al and 0.001 wt. % or less S, at least one element selected from the group of 0.001 to 0.05 wt. % Sb, 0.002 to 0.1 wt. % Sn, 0.0005 to 0.01 wt. % Se and 0.0005 to 0.01 wt. % Te; and the balance being Fe and inevitable impurities. The non-oriented electromagnetic steel sheet is produced by the steps of: hot-rolling a slab to form a hot-rolled steel sheet, cold-rolling the hot-rolled steel sheet to form a cold-rolled steel sheet; and finish annealing the cold-rolled steel sheet.
摘要:
Provided is a toothpaste composition for dentin hypersensitivity that effectively prevents pain attributed to dentin hypersensitivity, instantaneously and sufficiently seals the openings of dentinal tubules in an exposed dentinal surface, and has excellent sustainability of the effect of suppressing the pain attributed to dentin hypersensitivity. The toothpaste composition for dentin hypersensitivity comprises the following components (A), (B), and (C): (A) a powder having a sparingly water-soluble property selected from a fatty acid divalent metal salt (A-1) derived from a saturated fatty acid having from 12 to 18 carbon atoms, a fatty acid acyllysine (A-2) having an acyl group derived from a saturated fatty acid having from 12 to 18 carbon atoms, and a fatty acid acyltaurine divalent metal salt (A-3) having an acyl group derived from a saturated fatty acid having from 12 to 18 carbon atoms; (B) a desensitizing agent selected from potassium nitrate, potassium citrate, strontium chloride, and strontium acetate; and (C) water; in which a mass ratio ((A)/(B)) of the component (A) to the component (B) is from 0.02 to 0.5.
摘要:
A steel sheet for an explosion-proof band contains 0.001 to 0.05% by mass of C, 0.2 to 1% by mass of Si, 0.5 to 2.3% by mass of Mn, 0.02 to 0.12% by mass of P, not higher than 0.005% by mass of 0, not higher than 0.020% by mass of S, and not higher than 0.005% by mass of N, and has not higher than 100% of a P segregation rate within the steel sheet, which is represented by (Pmax−Pave)×100/Pave, where Pmax denotes the maximum P concentration within the steel sheet, and Pave denotes the average P concentration within the steel sheet, 10 to 25 μm of an average ferrite grain size, and not lower than 10,000 of an anhysteretic magnetic permeability.