CN102637466A

CN102637466A - Grounding electrode and grounding wire of continuous casting copper-clad steel conductor

Info

Publication number: CN102637466A
Application number: CN2012101170640A
Authority: CN
Inventors: 陆军; 倪亚; 蔡国庆
Original assignee: YANCHENG YASHENG ELECTRICAL CO Ltd
Current assignee: YANCHENG YASHENG ELECTRICAL CO Ltd
Priority date: 2012-04-19
Filing date: 2012-04-19
Publication date: 2012-08-15

Abstract

The invention relates to a grounding electrode and a grounding wire of a continuous casting copper-clad steel conductor. Each design of the grounding electrode and the grounding wire comprises a conductor and an insulating layer (4) arranged outside the conductor, wherein the conductor consists of a steel core material (3) and a copper layer (1) at the outer surface. The grounding electrode and the grounding wire are characterized in that the conductor is provided with a copper steel molecular crystallizing layer (2) between the core material (3) and the copper layer (1). According to the grounding electrode and the grounding wire, a pioneered horizontal continuous casting production technique is adopted to realize metallurgy fusion of copper and steel to form the copper steel molecular crystalline layer, the binding force of copper and steel is good, and the copper and the steel can be drawn randomly like drawing single metal, can be machined into be in a shape with a large section and a large length without phenomena of disjoint, peeling and cracking; due to the high-temperature fusion adopted on a compound interface of the copper and the steel, no residuals are left, the binding surface has no corrosion phenomenon; and the copper layer on the surface is thicker, has strong corrosion resistance and long service life and lightens overhauling labor intensity.

Description

Continuous casting copper covered steel conductor earth electrode, earth connection

Technical field

The present invention relates to a kind of continuous casting copper covered steel conductor earth electrode, earth connection.

Background technology

The earth electrode of copper conductor, earth connection are present important conduction bar and wire rods, and bar is mainly used in power ground, and wire rod is mainly used in every field such as electric railway, lightning protection earthing system, communication, electronic devices and components leading foot; But along with the copper valency rises steadily; The copper raw material can not be met the need of market fully, and this gives a large amount of enterprises that produces earth electrode, earth connection as raw material with copper that uses, and brings big cost; A kind of effect with copper conductor, cheap copper covered steel conductor becomes application direction; At present, the copper covered steel on the market adopts electroplating technology basically, and it is low that electroplating technology has a cost, advantages of cheap price, but produce the comparison difficulty of thick copper layer, heavy in section, length, and the copper steel adhesion is poor, also has three-waste pollution.

Summary of the invention

The object of the present invention is to provide a kind of defectives such as copper steel adhesion difference that above-mentioned prior art exists of overcoming; Make it have copper bed thickness, heavy in section, length; The copper steel adhesion is good, a kind of continuous casting copper covered steel conductor earth electrode of three-waste free pollution, earth connection;

For realizing above-mentioned purpose; The technical scheme that the present invention adopted is: a kind of continuous casting copper covered steel conductor earth electrode, the earth connection that are designed; Comprise conductor and be arranged on the outer insulating barrier of conductor; Conductor comprises the copper layer of steel core and outer surface, it is characterized in that: said conductor is provided with copper steel molecular crystalline layer between core and copper layer;

Described a kind of continuous casting copper covered steel conductor earth electrode, earth connection is characterized in that: said conductor is single core conductor structure;

Described a kind of continuous casting copper covered steel conductor earth electrode, earth connection, it is characterized in that: said conductor is a multicore structure, twists together between each core;

Described a kind of continuous casting copper covered steel conductor earth electrode, earth connection is characterized in that: said steel core (3) is a mild steel;

Described a kind of continuous casting copper covered steel conductor earth electrode, earth connection is characterized in that: said steel core (3) is a hard steel.

The present invention's beneficial effect compared with prior art:

1, owing to adopts the horizontal casting method production technology of initiative; Realize that metallurgical welding forms copper steel molecular crystalline layer between copper and the steel; The copper steel adhesion is good; Can heavy in section, length be can be processed into as required as any drawing of the single metal of drawing, and skin, cracking phenomena do not occurred disconnecting, sticking up; 2, owing to composite interface between copper and the steel adopts the high temperature welding, therefore, noresidue, faying face corrosion phenomenon can not occur; Surface copper layer is thicker, and corrosion resistance is strong, and long service life alleviates maintenance labour intensity.

Description of drawings:

Fig. 1 is the longitudinal sectional drawing of embodiment of the present invention one;

Fig. 2 is the longitudinal sectional drawing of embodiment of the present invention two;

Fig. 3 is the longitudinal sectional drawing of embodiment of the present invention three;

Among the figure:

1. copper layer, 2. copper steel molecular crystalline layer, 3. core, 4. insulating barrier.

Embodiment:

Describe the present invention in detail below in conjunction with accompanying drawing:

Execution mode one:

As shown in Figure 1, a kind of continuous casting copper covered steel conductor earth electrode, earth connection, conductor comprises the copper layer 1 of steel core 3 and outer surface; Said conductor is provided with copper steel molecular crystalline layer 2 between core 3 and copper layer 1; Said conductor is single core conductor structure; Said steel core 3 can be mild steel, and said steel core 3 also can be hard steel;

Execution mode two:

As shown in Figure 2, a kind of continuous casting copper covered steel conductor earth electrode, earth connection comprise conductor and are arranged on the outer insulating barrier 4 of conductor that conductor comprises the copper layer 1 of steel core 3 and outer surface; Said conductor is provided with copper steel molecular crystalline layer 2 between core 3 and copper layer 1; Said conductor is single core conductor structure; Said steel core 3 can be mild steel, and said steel core 3 also can be hard steel;

Execution mode three:

As shown in Figure 3, a kind of continuous casting copper covered steel conductor earth electrode, earth connection comprise conductor and are arranged on the outer insulating barrier 4 of conductor that conductor comprises the copper layer 1 of steel core 3 and outer surface; Said conductor is provided with copper steel molecular crystalline layer 2 between core 3 and copper layer 1; Said conductor is a multicore structure, twists together between each core; Said steel core 3 can be mild steel, and said steel core 3 also can be hard steel;

Continuous metal cast process will be handled clean steel stamen and under protection of nitrogen gas, be heated to 1150 ℃ ~ 1250 ℃, utilize main frequency furnace with the cathode copper heat fused simultaneously, will heat back steel stamen fast through copper liquid, crystallize into the copper covered steel stock, be drawn into copper covered steel conductor again; This technology can make property metallurgical welding in the court of a feudal ruler between copper and the steel, the complete strong bonded in copper base-steel bi-metal interface, and it is the same to become single metal; Can draw arbitrarily and dial, the skin phenomenon does not appear sticking up in product, and copper layer thickness can be selected arbitrarily; The product specification great variety of goods is widely used, and especially is fit to produce high electricity conduction; The heavy in section, the product of length; Copper covered steel has combined the intensity of steel, the synthesis that the conductivity of copper is more excellent, and fewer and feweri along with this valuable genus of copper, copper covered steel will replace the fine copper material and take the position as the leading factor.

Claims

1. a continuous casting copper covered steel conductor earth electrode, earth connection; Comprise conductor and be arranged on the outer insulating barrier (4) of conductor; Conductor comprises the copper layer (1) of steel core (3) and outer surface, it is characterized in that: said conductor is provided with copper steel molecular crystalline layer (2) between core (3) and copper layer (1).

2. a kind of continuous casting copper covered steel conductor earth electrode according to claim 1, earth connection is characterized in that: said conductor is single core conductor structure.

3. a kind of continuous casting copper covered steel conductor earth electrode according to claim 1, earth connection, it is characterized in that: said conductor is a multicore structure, twists together between each core.

4. a kind of continuous casting copper covered steel conductor earth electrode according to claim 1, earth connection is characterized in that: said steel core (3) is a mild steel.

5. a kind of continuous casting copper covered steel conductor earth electrode according to claim 1, earth connection is characterized in that: said steel core (3) is a hard steel.