초록 ▼

The present invention relates to rolling practice. The proposed roll comprises a sleeve with a hard-alloy insert having a working surface and an element for protection of the insert against electrochemical wear. The element comprises an inductor coil located on the sleeve, and a magnet fixed station

The present invention relates to rolling practice. The proposed roll comprises a sleeve with a hard-alloy insert having a working surface and an element for protection of the insert against electrochemical wear. The element comprises an inductor coil located on the sleeve, and a magnet fixed stationary nearby the coil. Parts of turns of the coil located on the side of its outer surface are electrically connected to the hard-alloy insert, and parts of turns of the coil located on the side of its inner surface are adapted to be in electric contact with the coolant fluid.

대표청구항 ▼

A rolling-mill roll, comprising: a mandrel; a sleeve mounted on said mandrel and having a slot; a hard-alloy insert having a working surface and disposed within said slot; coolant fluid for cooling the roll; at least one inductor coil located on said sleeve and having an outer surface and an inner s

A rolling-mill roll, comprising: a mandrel; a sleeve mounted on said mandrel and having a slot; a hard-alloy insert having a working surface and disposed within said slot; coolant fluid for cooling the roll; at least one inductor coil located on said sleeve and having an outer surface and an inner surface; a plurality of turns arranged on said at least one inductor coil having outer sections located above said outer surface and inner sections located above said inner surface; said outer sections being electrically coupled to said hard-alloy insert; said inner sections being immersed in said coolant fluid; a magnet fixedly mounted adjacent said at least one inductor coil, said magnet establishing a direct current source; and wherein said magnet and said at least one inductor coil cooperatively form a protection element for protecting said working surface of said hard-alloy insert.