Patent ID: 8133358
Filing Date: 2012-03-13
Classification: C23C,H01J

Abstract:
1. A method for producing a coated steel wire, said wire comprising a steel core and a coating layer made of a metal alloy material having a composition comprising at least one first metal component and at least one second metal component, comprising the steps of: a) conveying the steel core along a predetermined path in a substantially continuous manner through a first and a second vacuum deposition chamber, said path comprising at least one forward length and at least one backward length spaced apart by a predetermined distance, the at least one forward length and the at least one backward length being substantially parallel with respect to one another, the first vacuum deposition chamber comprising a first group of cathodes, and the second vacuum deposition chamber comprising a second group of cathodes; and b) during said conveying of the steel core in a substantially continuous manner through the first and second vacuum deposition chambers: