Connecting structure of aluminum electrolytic prebaked anode guide bar and steel jaw and preparation method thereof

A technology of prebaked anode and connection structure, which is applied in the field of connection structure between aluminum electrolytic prebaked anode guide rod and steel claw, which can solve the problems of increasing the repair cost of aluminum guide rod, easy fracture of aluminum-aluminum welding point, and high anode voltage loss, etc. problems, achieve the effect of reducing maintenance costs and use costs, small deformation, and reducing the rate of desoldering

Active Publication Date: 2010-07-28
YUNNAN ALUMINUM
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. There are many connection points, and they must be used together with explosive soldering tabs, with high resistivity and large anode voltage lo

Method used

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  • Connecting structure of aluminum electrolytic prebaked anode guide bar and steel jaw and preparation method thereof
  • Connecting structure of aluminum electrolytic prebaked anode guide bar and steel jaw and preparation method thereof
  • Connecting structure of aluminum electrolytic prebaked anode guide bar and steel jaw and preparation method thereof

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Example Embodiment

[0030] According to the thermal and physical properties of the metal phases, at a temperature of 750 to 800 ℃, use aluminum liquid or aluminum copper alloy liquid (copper accounts for 0.3%) to cast the steel claw hollow bucket (cast aluminum steel bucket), so that the guide rod and the steel The claws are connected as a whole. Such as Figure 4 As shown, the cast aluminum steel bucket has a protruding dovetail structure, and the aluminum guide rod casting head part has a dovetail groove: the lower part of the cast aluminum steel bucket is connected with the steel claws as a whole.

[0031] Specific production method:

[0032] 1. Clean and remove rust inside the steel bucket before aluminum casting;

[0033] 2. Coat a thin layer of rosin or solder paste on the inner wall of the steel bucket to prevent the inner wall of the steel bucket from being oxidized;

[0034] 3. Preheat the steel bucket and aluminum guide rod to 500~600℃ before casting aluminum;

[0035] 4. Heat aluminum or alum...

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Abstract

The invention discloses a connecting structure of an aluminum electrolytic prebaked anode guide bar and a steel jaw and a preparation method thereof. The connecting structure of the aluminum electrolytic prebaked anode guide bar and the steel jaw ensures that the guide bar and the steel jaw are connected into a whole by pouring a steel jaw hollow hopper with aluminum liquid or aluminum-copper alloy liquid with the temperature of 750-800DEG C at the temperature of 500-600DEG C. A connecting method of the aluminum electrolytic prebaked anode guide bar and the steel jaw has strong reliability and reduces the voltage loss of an anode steel jaw by about 10-20mv by fully utilizing good conductive performance of aluminum; and an aluminum-steel interface alloy layer has stable bonding, high strength and little deformation, thereby greatly reducing the desoldering rate of aluminum-aluminum soldering points and burst soldering points of the aluminum guide bar, effectively prolonging the service life of the anode guide bar and reducing the maintenance fees and the using cost.

Description

Technical field [0001] The invention relates to a connection structure and a manufacturing method of an aluminum electrolytic prebaked anode guide rod and a steel claw. technical background [0002] my country’s existing aluminum electrolytic cell has a single cell capacity of about 350kA. The improvement of electrolytic cell capacity and control level has reduced the DC power consumption per ton of aluminum produced by my country’s electrolytic aluminum production to about 13,500kWh, but the energy consumption and theoretical power consumption value of electrolytic aluminum production are still The difference is far. More than 50% of the electric energy used in the production of electrolytic aluminum is consumed by the electric field, magnetic field and hot spots in the aluminum electrolytic cell and the production process. The production of electrolytic aluminum still has great potential for energy saving. Energy saving in aluminum electrolysis is not only the only way to promo...

Claims

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Application Information

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IPC IPC(8): C25C3/12
Inventor 刘志祥邱哲生王新华周永全和锦黎李章洪杨新雨陈晓云
Owner YUNNAN ALUMINUM
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