Rare earth-copper alloy wire for railway electric power continuous lines, and preparation method thereof
A rare earth copper and alloy wire technology is applied in the fields of non-ferrous metal wire processing and forming, and copper alloy material preparation. , to ensure the effect of purity
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[0027] Example 1
[0028] The rare earth content is 0.01%, and the high-purity electrolytic copper plate and the high-purity mixed rare earth are placed in a vacuum induction furnace according to the proportion, and the vacuum degree in the furnace is 1.0×10 -2 Pa, heated to 1150℃~1250℃, and smelted into rare earth copper alloy ingots with a diameter of Φ150mm; put the rare earth copper alloy ingots into the electron beam melting furnace, evacuated the furnace body and the gun chamber, and the vacuum of the gun chamber was 1.0 ×10 -4 Pa, the vacuum in the furnace is 1.0×10 -3 Pa, through electron beam smelting, solidification, purification and impurity removal, a high cleanliness rare earth copper alloy ingot with a diameter of Φ200mm is obtained. Remove and polish the surface defects of the ingot, put it into a heating furnace protected by an inert gas such as argon, and heat it. When heated to 800 °C, hold it for 4 hours and then carry out water-sealing extrusion. The preh...
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[0029] Example 2
[0030] The rare earth content is 0.003%, and the high-purity electrolytic copper plate and the high-purity mixed rare earth are placed in a vacuum induction furnace according to the proportion, and the vacuum degree in the furnace is 5.0×10 -3 Pa, heated to 1200℃~1250℃, and smelted into rare earth copper alloy ingot with a diameter of Φ180mm. The rare earth copper alloy ingot is put into the electron beam melting furnace, and the furnace body and the gun chamber are evacuated, and the vacuum of the gun chamber is 2.5×10 -5 Pa, the vacuum in the furnace is 5.0×10 -4 Pa, through electron beam smelting, solidification, purification and impurity removal, a high cleanliness rare earth copper alloy ingot with a diameter of Φ300mm is obtained. Remove and polish the surface defects of the ingot, put it into a heating furnace protected by an inert gas such as argon, and heat it. When heated to 780 °C, hold it for 4.5 hours and then carry out water-sealing extrusion...
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[0031] Example 3
[0032] The rare earth content is 0.04%, and the high-purity electrolytic copper plate and the high-purity mixed rare earth are placed in a vacuum induction furnace according to the proportion, and the vacuum degree in the furnace is 1.0×10 -2 Pa, heated to 1240℃~1300℃, and smelted into rare earth copper alloy ingot with a diameter of Φ150mm. The rare earth copper alloy ingot is put into the electron beam melting furnace, and the furnace body and the gun chamber are evacuated, and the vacuum of the gun chamber is 5×10 - 4 Pa, the vacuum in the furnace is 3.0×10 -3 Pa, through electron beam smelting, solidification, purification and impurity removal, a high cleanliness rare earth copper alloy ingot with a diameter of Φ200mm is obtained. Remove and polish the surface defects of the ingot, put it into a heating furnace protected by an inert gas such as argon, and heat it. When heated to 850 °C, hold it for 4 hours and then carry out water-sealing extrusion. T...
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