MANUFACTURE OF COILS FOR ELECTROTECHNICAL COMPONENTS USING STRIPS OF UNSEALED ANODISED ALUMINIUM

摘要

The invention relates to a method for manufacturing a strip of impregnated anodised aluminium, for use in a coil of an electrotechnical component, said coil including an interstitial material providing dielectric cohesion and insulation functions, said interstitial material being suitable for cross-linking, in other words for forming, by chemical reactions between the components thereof when subjected to certain physical conditions, molecular structures being organised in a lattice, the method comprising: a step of applying the precursor mixture of said interstitial material to the anodised aluminium; at least one step of cross-linking the precursor mixture in order to form said interstitial material on the strip of aluminium; characterised in that the anodised aluminium has not been subjected to the sealing of the pores of the alumina formed by anodisation prior to the application of the precursor mixture of said interstitial material.

主权项

1. Method for manufacturing a strip of impregnated anodised aluminium, intended to be used in a coil of an electrotechnical component, said coil comprising an interstitial material providing the functions of cohesion and dielectric isolation,
said interstitial material being obtained from a precursor mixture able to cross-link, said method comprising:
a step of applying the precursor mixture of said interstitial material to the anodised aluminium,at least one step of cross-linking the precursor mixture in order to form said interstitial material on the aluminium strip, wherein anodised aluminium has not undergone sealing of the pores of the alumina formed by anodising before application of the precursor mixture of said interstitial material.