| 摘要 |
PURPOSE:To obtain a molding material which gives moldings having an enhanced magnetic efficiency, by adding a magnetic material in a specified ratio to a thermosetting resin. CONSTITUTION:5-80wt% (based on the total quantity of molding material) is added to a thermosetting resin. Examples of the magnetic materials are ferrite, such as soft or hard ferrite, and permalloy. Ferrite is preferred, because it causes little variability in quality. When the quantity of the magnetic material is less than 0.5wt%, magnetic efficiency can not be improved, while when the quantity exceeds 80wt%, electrical insulation resistance is greatly lowered. Additives such as hardener, curing accelerator, reinforcing agent, filler, mold release agent, colorant, etc. can be used.
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