| 摘要 |
The invention relates to an insulation process for soft-magnetic (low-retentivity) semifinished products which is based on the use of water-soluble salts of aluminium and/or of magnesium. The solution is applied to the semifinished product, and magnesium oxide and/or aluminium oxide is only formed by subsequent heat treatment of the semifinished product at a temperature of above the decomposition temperature of the salt. This makes it possible to shape the semifinished products, for example by stamping, cutting or dividing, before the oxide ceramic grain providing the actual insulation is formed. This reduces the tool wear during shaping. |
