Method for preparing capacity-increased and energy-saving overhead power transmission shaped conductor

Abstract

The invention relates to a method for preparing a capacity-increased and energy-saving overhead power transmission shaped conductor, which comprises the following steps: (1) an aluminum base is meltedto make a round aluminum rod; (2) a round mongline is prepared; (3) the round mongline is rolled into a rectangular line; (4) the rectangular line is drawn into a shaped aluminum mongline; (5) a shaped soft aluminum mongline is obtained after continuous drawing and quenching and tempering heat treatment are conducted to the shaped aluminum mongline; (6) a material for a strength-bearing layer isselected; and (7) the twisting of a plurality of layers of the shaped soft aluminum monglines is completed once and for all in a line twisting machine, which takes the strength-bearing layer materialas the center. The method has the advantages that: the conductivity of the shaped soft aluminum conductor made by the method can reach up to 63 percent IACS or higher, which can be proven by a laboratory test report. In addition, the method can improve material utilization rate and working efficiency and reduce loss and compared with a hot extrusion method, the loss is reduced by 8 to 20 percent and the working efficiency is improved by one time.

Description

technical field

[0001] The invention relates to the technical field of cable conductor production, in particular to a preparation method for capacity-increasing and energy-saving special-shaped conductors for overhead power transmission. Background technique

[0002] Generally, there are two types of process methods for making high-voltage overhead conductors. The first type of single wire is drawn into a round aluminum hard single wire by a circular hole die, and then multi-strand round single wires are layered and stranded on a load-bearing single (multiple) strand circle. Shaped steel core or other circular load-bearing material outer circumference, called circular aluminum concentric stranded wire; the second type is made of special-shaped soft aluminum single wire by hot extrusion, and then layered by multiple special-shaped soft aluminum single wires Twisted around the outer circumference of a load-bearing round core. It is called different-shaped concentric stranded ...

Examples

preparation example Construction

[0028] according to Figure 1-3 As shown, a method for preparing a capacity-increasing and energy-saving special-shaped wire for overhead power transmission, the steps are as follows:

[0029] 1. A round aluminum rod with a diameter of 9.5mm is manufactured after melting the aluminum base, and the component weight of the aluminum base material is kg:

[0030] Si 0.06

[0031] Fe 0.15

[0032] Cu 0.05

[0033] Mg 0.08

[0034] Cr 0.003

[0035] Mn 0.004

[0036] Ti 0.005

[0037] V 0.002

[0038] Al 99.646

[0039] When the impurity content exceeds 0.015kg, boron is added for boronization process;

[0040] 2. It is made into a round single wire of Φ5.0mm through a multi-channel circular hole die drawing process;

[0041] 3. The above-mentioned round single wire is rolled into a rectangular wire of the required size through a cold-pressed roll;

[0042] 4. The rectangular wire is drawn through three special-shaped wire drawing dies image 3 -a profiled aluminum singl...

Embodiment 2

[0047] according to Figure 1-3 As shown, a method for preparing a capacity-increasing and energy-saving special-shaped wire for overhead power transmission, the steps are as follows:

[0048] 1. A round aluminum rod with a diameter of 12mm is manufactured after melting the aluminum base, and the component weight of the aluminum base material is kg:

[0049] Si 0.10

[0050] Fe 0.10

[0051] Mg 0.01

[0052] Cr 0.001

[0053] Mn 0.002

[0054] Ti 0.003

[0055] V 0.004

[0056] Al 99.78

[0057] When the impurity content exceeds 0.015kg, boron is added for boronization process;

[0058] 2. It is made into a round single wire of Φ6mm through a multi-channel circular hole die drawing process;

[0059] 3. The above-mentioned round single wire is rolled into a rectangular wire of the required size through a cold-pressed roll;

[0060] 4. The rectangular wire is drawn through three special-shaped wire drawing dies image 3 -b shows profiled aluminum single wire, as fig...

Embodiment 3

[0065] according to Figure 1-3 As shown, a method for preparing a capacity-increasing and energy-saving special-shaped wire for overhead power transmission, the steps are as follows:

[0066]1. A round aluminum rod with a diameter of 12mm is manufactured after melting the aluminum base, and the component weight of the aluminum base material is kg:

[0067] Si 0.08

[0068] Fe 0.12

[0069] Cu 0.07

[0070] Cr 0.002

[0071] Mn 0.003

[0072] Ti 0.004

[0073] V 0.003

[0074] Al 99.718

[0075] When the impurity content exceeds 0.015kg, boron is added for boronization process;

[0076] 2. It is made into a round single wire of Φ6.5mm through a multi-channel round hole die drawing process;

[0077] 3. The above-mentioned round single wire is rolled into a rectangular wire of the required size through a cold-pressed roll;

[0078] 4. The rectangular wire is drawn through three special-shaped wire drawing dies image 3 -C profiled aluminum single wire, as figure 2 T...

technical field

[0001] The invention relates to the technical field of cable conductor production, in particular to a preparation method for capacity-increasing and energy-saving special-shaped conductors for overhead power transmission. Background technique

[0002] Generally, there are two types of process methods for making high-voltage overhead conductors. The first type of single wire is drawn into a round aluminum hard single wire by a circular hole die, and then multi-strand round single wires are layered and stranded on a load-bearing single (multiple) strand circle. Shaped steel core or other circular load-bearing material outer circumference, called circular aluminum concentric stranded wire; the second type is made of special-shaped soft aluminum single wire by hot extrusion, and then layered by multiple special-shaped soft aluminum single wires Twisted around the outer circumference of a load-bearing round core. It is called different-shaped concentric stranded ...

Examples

preparation example Construction

[0028] according to Figure 1-3 As shown, a method for preparing a capacity-increasing and energy-saving special-shaped wire for overhead power transmission, the steps are as follows:

[0029] 1. A round aluminum rod with a diameter of 9.5mm is manufactured after melting the aluminum base, and the component weight of the aluminum base material is kg:

[0030] Si 0.06

[0031] Fe 0.15

[0032] Cu 0.05

[0033] Mg 0.08

[0034] Cr 0.003

[0035] Mn 0.004

[0036] Ti 0.005

[0037] V 0.002

[0038] Al 99.646

[0039] When the impurity content exceeds 0.015kg, boron is added for boronization process;

[0040] 2. It is made into a round single wire of Φ5.0mm through a multi-channel circular hole die drawing process;

[0041] 3. The above-mentioned round single wire is rolled into a rectangular wire of the required size through a cold-pressed roll;

[0042] 4. The rectangular wire is drawn through three special-shaped wire drawing dies image 3 -a profiled aluminum singl...

Embodiment 2

[0047] according to Figure 1-3 As shown, a method for preparing a capacity-increasing and energy-saving special-shaped wire for overhead power transmission, the steps are as follows:

[0048] 1. A round aluminum rod with a diameter of 12mm is manufactured after melting the aluminum base, and the component weight of the aluminum base material is kg:

[0049] Si 0.10

[0050] Fe 0.10

[0051] Mg 0.01

[0052] Cr 0.001

[0053] Mn 0.002

[0054] Ti 0.003

[0055] V 0.004

[0056] Al 99.78

[0057] When the impurity content exceeds 0.015kg, boron is added for boronization process;

[0058] 2. It is made into a round single wire of Φ6mm through a multi-channel circular hole die drawing process;

[0059] 3. The above-mentioned round single wire is rolled into a rectangular wire of the required size through a cold-pressed roll;

[0060] 4. The rectangular wire is drawn through three special-shaped wire drawing dies image 3 -b shows profiled aluminum single wire, as fig...

Embodiment 3

[0065] according to Figure 1-3 As shown, a method for preparing a capacity-increasing and energy-saving special-shaped wire for overhead power transmission, the steps are as follows:

[0066]1. A round aluminum rod with a diameter of 12mm is manufactured after melting the aluminum base, and the component weight of the aluminum base material is kg:

[0067] Si 0.08

[0068] Fe 0.12

[0069] Cu 0.07

[0070] Cr 0.002

[0071] Mn 0.003

[0072] Ti 0.004

[0073] V 0.003

[0074] Al 99.718

[0075] When the impurity content exceeds 0.015kg, boron is added for boronization process;

[0076] 2. It is made into a round single wire of Φ6.5mm through a multi-channel round hole die drawing process;

[0077] 3. The above-mentioned round single wire is rolled into a rectangular wire of the required size through a cold-pressed roll;

[0078] 4. The rectangular wire is drawn through three special-shaped wire drawing dies image 3 -C profiled aluminum single wire, as figure 2 T...

Images