A conductive wire for electrical properties testing having high hardness and conductivity, which is composed of a copper alloy, and includes in its outer periphery portion a fibrous structure extending at an angle of 0.5 to 20 degrees with respect to the length direction of the conductive wire.

A particle production apparatus including a generating device, a conveying device, and a straightening device is provided. The generating device includes a tank filled with a dense medium, an electric power source, a first and a second electrical conducting element received in the dense medium and coupled to an anode and a cathode of the electric power source respectively. The conveying device is configured to convey a metal wire into the tank and make the metal wire to contact the first electrical conducting element and the second electrical conducting element in a straight-line direction, so as to produce an electric explosion to form a plurality of particles in the dense medium.

A particle production apparatus including a generating device, a conveying device, and a straightening device is provided. The generating device includes a tank filled with a dense medium, an electric power source, a first and a second electrical conducting element received in the dense medium and coupled to an anode and a cathode of the electric power source respectively. The conveying device is configured to convey a metal wire into the tank and make the metal wire to contact the first electrical conducting element and the second electrical conducting element in a straight-line direction, so as to produce an electric explosion to form a plurality of particles in the dense medium.

A particle production apparatus including a generating device, a conveying device, and a straightening device is provided. The generating device includes a tank filled with a dense medium, an electric power source, a first and a second electrical conducting element received in the dense medium and coupled to an anode and a cathode of the electric power source respectively. The conveying device is configured to convey a metal wire into the tank and make the metal wire to contact the first electrical conducting element and the second electrical conducting element in a straight-line direction, so as to produce an electric explosion to form a plurality of particles in the dense medium.

The present invention provides a mold method for surface treatment of aluminum component comprising: providing straightening and rounding the aluminum component; the scraping pretreatment; the oxidation prevention and lubrication of scraping; the precise scraping of the aluminum rod. The present invention enables on-line high precision shape finishing and surface cleaning of the aluminum component which satisfies the processing requirement of providing uniformity and consistent treatment by the subsequent extrusion processing as part of the production line in order to produce high quality aluminum, aluminum alloy, aluminum bimetallic and multi-metallic composite profiles and special profiles.

Apparatus (10) for straightening a metal wire (W) comprising a support structure (11) on which there are mounted in sequence at least a straightening unit (12), configured to reduce the tensions present in the metal wire (W), a main drawing unit (13), which is configured to exert a certain pull on the metal wire (W) for its advancement, and an outlet unit (14), which is configured to guide the metal wire (W) along an outlet axis (X). The present invention also concerns a process for straightening a metal wire (W).

Apparatus (10) for straightening a metal wire (W) comprising a support structure (11) on which there are mounted in sequence at least a straightening unit (12), configured to reduce the tensions present in the metal wire (W), a main drawing unit (13), which is configured to exert a certain pull on the metal wire (W) for its advancement, and an outlet unit (14), which is configured to guide the metal wire (W) along an outlet axis (X). The present invention also concerns a process for straightening a metal wire (W).