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A kind of preparation method of stable working cable
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A stable, cable technology, applied in cable/conductor manufacturing, conductor/cable insulation, circuits, etc., can solve the problems of buried cable corrosion, shorten cable life, increase in harmful substances, etc., and achieve heat resistance, corrosion resistance and structural strength. Improve, improve material properties, good physical properties
Active Publication Date: 2018-01-02
上海浦东电线电缆(集团)有限公司
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Abstract
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Problems solved by technology
[0003] With the emergence of smog in recent years and the deterioration of the air environment, both overhead cables and buried cables have been affected to a certain extent. The harmful substances in the air environment have increased, and the surface of overhead cables in such air for a long time will suffer There are some corroded spots, which greatly shorten the life of the cable. At the same time, the sewage formed by the rainfall flows into the ground, which is also corrosive to the buried cable.
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Embodiment 1
[0036] The preparation method of the stable working cable of the present embodiment comprises the following steps:
[0037] (1) Ingredients: The mass percentage of each component in the raw material is: C: 0.05%, Fe: 1.25%, Mn: 0.42%, S: ≤0.020%, P: ≤0.030%, Cr: 0.13%, Ni: 1.35%, Zn : 1.75%, Cu: 7.95%, Mo: 0.03%, Ti: 1.47%, Pd: 0.02%, Pt: 0.21%, Au: 0.41%, W: 0.05%, Nd: 0.03%, Ce: 0.03%, Eu : 0.01%, Lu: 0.02%, the balance is Ag;
[0038] (2) Smelting: heating and melting the cable raw materials with stable work, as follows:
[0039] a. Add the raw materials into the furnace according to the mass percentage of each component in the predetermined working stable cable, raise the temperature in the furnace to 1650 degrees Celsius to 1680 degrees Celsius, and the raw materials are smelted to form an alloy solution;
[0040] b. Cool the alloy solution obtained in the previous step, and use water cooling to cool the alloy solution to room temperature at a cooling rate of 26-28°C / s;...
Embodiment 2
[0057] The preparation method of the stable working cable of the present embodiment comprises the following steps:
[0058] (1) Ingredients: The mass percentage of each component in the raw material is: C: 0.15%, Fe: 1.56%, Mn: 0.73%, S: ≤0.020%, P: ≤0.030%, Cr: 0.26%, Ni: 1.63%, Zn : 1.96%, Cu: 8.46%, Mo: 0.06%, Ti: 1.69%, Pd: 0.05%, Pt: 0.33%, Au: 0.62%, W: 0.15%, Nd: 0.06%, Ce: 0.07%, Eu : 0.04%, Lu: 0.03%, the balance is Ag;
[0059] (2) Smelting: heating and melting the cable raw materials with stable work, as follows:
[0060] a. Add the raw materials into the furnace according to the mass percentage of each component in the predetermined working stable cable, raise the temperature in the furnace to 1650 degrees Celsius to 1680 degrees Celsius, and the raw materials are smelted to form an alloy solution;
[0061] b. Cool the alloy solution obtained in the previous step, and use water cooling to cool the alloy solution to room temperature at a cooling rate of 26-28°C / s;...
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Abstract
The invention relates to a preparation method of a cable with high working stability. The preparation method comprises the steps of 1, preparing a raw material; 2, melting; 3, performing continuous casting and rolling on melted alloy; 4, performing wire drawing; 5, forging; 6, quenching; 7, intertwisting the raw material for preparing a wire core, wrapping an insulating layer on the cable core, performing electroplating of a zinc-nickelalloycoating on the external surface of the insulating layer, intertwisting two wire cores for preparing a conductor, and utilizing at least one conductor as a cable core; 8, successively wrapping a shielding layer and an oversheath on the cable core, wherein clearances are reserved among the cable core, the shielding layer and the oversheath, and a zinc-plated steel wire armoring layer wraps the shielding layer, and an outmost oversheath is a flame-retardant halogen-free corrosion-resistant polyolefin sheath layer; (9), performing vacuum pumping on the clearances which are reserved among the cable core, the shielding layer and the oversheath; and 10, applying the coating. The preparation method has advantages of greatly improving integral corrosion resistance and structure strength of the cable, ensuring normal operation of the cable in various environments, and prolonging service life of the cable.
Description
technical field [0001] The invention relates to a method for preparing a cable with stable operation, and belongs to the technical field of power cables. Background technique [0002] At present, with the development of science and technology, both industry and human daily life are developing in the direction of electrification, and the status of cables in the field of industry and power is gradually increasing. Cables include power cables, control cables, compensation cables, shielded cables, high temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, aluminum alloy cables and so on. The cable is usually a rope-like cable twisted by several or several groups of wires, and each group is twisted with at least two wires. Each group of wires is insulated from each other and is often twisted around a center. The entire outer surface is covered with a highly insulated Covering layer, used to connect circuits, appliances, etc. ...
Claims
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Application Information
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