COIL AND ELECTRIC STEEL STRIP OR SHEET
The invention relates to a coil and an electric steel strip or sheet comprising at least one heat-curing adhesive hot-melt enamel layer, specifically a baked enamel layer, which is provided on one of the flat sides thereof and has an epoxy resin base, at least one curing agent, and at least one fill...
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Format: | Patent |
Sprache: | eng ; spa |
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Zusammenfassung: | The invention relates to a coil and an electric steel strip or sheet comprising at least one heat-curing adhesive hot-melt enamel layer, specifically a baked enamel layer, which is provided on one of the flat sides thereof and has an epoxy resin base, at least one curing agent, and at least one filler. In order to obtain a high degree of storage stability and longterm heat resistance, it is suggested that the filler in the baked enamel layer comprises a metallic carbonate, sulfate, sulfide, silicate or phosphate or any mixture of a plurality of these.
La invención se refiere a una bobina y una banda o lámina de acero eléctrico que comprende al menos una capa de adhesivo de fusion en caliente termoendurecible, específicamente una capa de barniz cocido, que está provista en uno de sus lados planos y contiene una base de resina epoxi, al menos un endurecedor y al menos un ingrediente de relleno. Con el fin de obtener un alto grado de estabilidad al almacenamiento y una restistencia a la temperatura a largo plazo, se propone que el relleno de la capa de barniz cocido comprenda un carbonato, sulfato, sulfuro, silicato o fosfato metálico o cualquier mezcla de varios de estos. |
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