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Method for producing steel/aluminum composite conductive pole

A technology of aluminum composite and conductive pillars, which is applied in the direction of contact manufacturing and connecting contact materials, etc., can solve the problems of poor interface bonding and other problems, and achieve the effects of strong follow-up development, high bonding strength, and simple process

Inactive Publication Date: 2009-07-29
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of poor interface bonding and the like mentioned above, the present invention proposes to improve the design of the steel head, cooperate with the use of surface treatment technology and control the heating temperature to ensure the successful production of steel / aluminum composite conductive rods

Method used

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  • Method for producing steel/aluminum composite conductive pole
  • Method for producing steel/aluminum composite conductive pole

Examples

Experimental program
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Effect test

Embodiment 1

[0023] In the design process of the steel head, the steel head adopts a square hole structure, the outer size of the main body of the steel head is 130mm×130mm×60mm, and the size of the inner hole ensures that the ratio of the area of ​​the steel to the area of ​​the aluminum at the same height of the steel / aluminum composite part is 1:1.5 ; Weld two cross reinforcement ribs at the bottom of the steel head, with a diameter of 10mm, one with a height of 60mm, and the other with a height of 80mm. figure 1 A schematic diagram of the steel head structure. Before pouring, the part of the steel head that needs to be in contact with the aluminum water is subjected to high-temperature baking, oxidation degreasing, sandblasting and rust removal, and then surface pretreatment with potassium fluorozirconate aqueous solution. The temperature of the potassium fluorozirconate aqueous solution is kept at 80°C; The final steel head was heated at 450°C for 25 minutes; the pouring temperature o...

Embodiment 2

[0025] In the design process of the steel head, the steel head adopts a square hole structure, the outer size of the main body is 150mm×150mm×70mm, and the size of the inner hole ensures that the area ratio of the steel area to the aluminum area at the same height of the steel / aluminum composite part is 1:2.0; The bottom of the steel head is welded with reinforcing ribs with a diameter of 13mm, one with a height of 70mm and the other with a height of 130mm. Before pouring, the part of the steel head that needs to be in contact with the aluminum water is first subjected to high-temperature baking, oxidation degreasing, sandblasting and rust removal, and then surface pretreatment with potassium fluorozirconate aqueous solution. The temperature of the potassium fluorozirconate aqueous solution is kept at 80 °C; The treated steel head is heated at 430°C for 30 minutes; the pouring temperature of the aluminum water is controlled at 770°C; after the aluminum water is poured, keep coo...

Embodiment 3

[0027] In the design process of the steel head, the steel head adopts a square hole structure, the outer size of the main body is 160mm×160mm×80mm, and the size of the inner hole ensures that the ratio of the area of ​​the steel to the area of ​​the aluminum at the same height of the steel / aluminum composite part is 1:2.6; The bottom of the steel head is welded with reinforcing ribs, the diameter is 16mm, one is 80mm high, and the other is 180mm high; before pouring, the part of the steel head that needs to be in contact with aluminum water is degreased with high alkali, pickled and derusted, and rinsed with clean water Then use potassium fluorozirconate aqueous solution for surface pretreatment. The temperature of potassium fluorozirconate aqueous solution is kept at 85°C; the treated steel head is heated at 400°C for 35 minutes; the pouring temperature of aluminum water is controlled at 750°C; the aluminum water is poured well Afterwards, keep cooling slowly near the steel he...

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Abstract

The invention relates to a method for manufacturing a steel / aluminum composite conductive pillar, in particular to a method for obtaining the steel / aluminum composite conduction pillar through controlling the size of a steel head and processing the surface of the steel head with dip plating solution and finally utilizing liquid aluminum and solid steel. In the process of designing the steel head, area ratio of steel and aluminum of the same height on the steel / aluminum composite part is 1: (1.5 to 2.6); a strengthening rib is welded on the bottom of the steel head; surface pretreatments of degreasing, derusting and zirconium potassium fluoride water solution are carried out on a part of the steel head needing to be contacted with aluminum water before being poured with aluminum water; after the surface pretreatment, the steel head is heated for 25 to 35 minutes under temperature of 400 to 450 DEG C and the pouring temperature of the aluminum water is controlled within 750 to 800 DEG C; after the aluminum water is poured, cooling rate of an aluminum pole part is controlled within 10 to 40 DEG C / min to prevent aluminum from shrinking severely and avoid cracking of an interface. The method for manufacturing steel / aluminum composite conduction pillar can obviously improve bonding strength and service life of the steel / aluminum composite conduction pillar.

Description

technical field [0001] The present invention relates to a method for making a steel / aluminum composite conductive column, in particular to a method for controlling the size of the steel head and treating the surface of the steel head with an immersion plating solution, and finally combining liquid aluminum and solid steel to obtain a steel / aluminum composite conductive column. A method for aluminum composite conductive pillars. technical background [0002] In the production of electrolytic aluminum, the steel / aluminum composite conductive column connected to the anode steel claw is composed of two parts connected by a steel head and an aluminum rod. In specific use, the steel / aluminum conductive column is directly welded with the steel claw, which greatly reduces the welding workload, and has the advantages of low resistance and good electrical conductivity. It can be reused under different working conditions and is not easy to crack. It has good performance and is widely ...

Claims

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Application Information

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IPC IPC(8): H01R4/62H01R43/16
Inventor 陈刚赵玉涛
Owner JIANGSU UNIV
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