초록 ▼

Apparatus for a continuous tandem electrical heat treating process for wire conductors for cables uses electrical contact pulleys having faces of a high melting point conductive material such as tungsten-copper. The melting point of the material is at least 1200°C. The novel apparatus has reduced we

Apparatus for a continuous tandem electrical heat treating process for wire conductors for cables uses electrical contact pulleys having faces of a high melting point conductive material such as tungsten-copper. The melting point of the material is at least 1200°C. The novel apparatus has reduced wear, arcing and wire breakage. Free running pulleys are also used instead of driven ones to avoid excessive tension. The free running pulleys have low torque contacts to apply high electrical current to heat the wire.

대표청구항 ▼

Electrical heat treating apparatus for solid wire electrical conductors comprising a plurality of electrical contact pulleys and insulated guide pulleys feeding a wire conductor along a predetermined path, and means applying electrical current to said contact pulleys and wire for heating said wire,

Electrical heat treating apparatus for solid wire electrical conductors comprising a plurality of electrical contact pulleys and insulated guide pulleys feeding a wire conductor along a predetermined path, and means applying electrical current to said contact pulleys and wire for heating said wire, said contact pulleys having wire contacting faces of a metallic material having a melting point of at least 1200°C and a relatively high resistance to wear.