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Titanium-coated aluminium laminated composite plate and preparation method thereof

An aluminum composite panel and layered composite technology, applied in metal layered products, chemical instruments and methods, coatings, etc., can solve problems such as large internal resistance of materials, achieve good electrical conductivity, uniform current distribution, and improve electrical conductivity. Effect

Inactive Publication Date: 2009-11-11
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a titanium-clad aluminum layered composite material with simple preparation process, low production cost, high material utilization rate, high dimensional accuracy and good electrical conductivity to solve the problem of large internal resistance of existing titanium electrode materials. preparation method

Method used

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  • Titanium-coated aluminium laminated composite plate and preparation method thereof
  • Titanium-coated aluminium laminated composite plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1 The surface of a 120×120×0.8mm titanium plate was degreased and sandblasted. Using the working parameters of spraying voltage 32V, current 160A, air pressure 0.5MPa, and spraying distance 100mm, a CDM-1620 arc spraying machine was applied on the surface of the titanium plate. Spray a 1mm thick aluminum layer on one side, hot-roll at a temperature of 500°C, and then cold-roll to obtain a titanium / aluminum composite plate. Coat the aluminum surfaces of two titanium / aluminum composite plates with a layer of aluminum welding agent, and the aluminum layer A certain pressure is applied relative to the superposition, heat preservation in a heating furnace at 500°C for 60 minutes, cold rolling, and welding by argon arc welding to obtain a titanium-clad aluminum layered composite plate. The coating is applied to electrolysis and the cell voltage is lower than that of pure titanium plates. 15%.

Embodiment 2

[0026] Example 2 Degrease and sandblast the surface of a 120×120×0.8mm titanium plate, and use a CDM-1620 arc spraying machine to spray a 1mm thick aluminum layer with the working parameters of spraying voltage 36V, current 180A, air pressure 0.5MPa, and spraying distance 100mm , hot-rolled at a temperature of 500°C, and then cold-rolled to obtain a titanium / aluminum composite plate. The aluminum surface is coated with a layer of aluminum solder, and a certain pressure is applied to the aluminum layer. It is kept in a heating furnace at 600°C for 60 minutes. Rolling, edge welding by argon arc welding, made of titanium-clad aluminum layered composite plate, coating, applied to the electrolytic cell voltage is 15% lower than that of pure titanium plate.

Embodiment 3

[0027] Example 3 Degrease and sandblast the surface of a 120×120×0.8mm titanium plate, put it into an argon atmosphere deposition chamber, preheat it to 300°C and atomize and deposit a 1mm thick aluminum layer on one side, and carry out hot rolling at a temperature of 500°C , and then cold-rolled to obtain a titanium / aluminum composite plate. Coat the aluminum surface of two titanium / aluminum composite plates with a layer of aluminum welding agent. , welded with argon arc welding to make a titanium-clad aluminum composite plate, and the coating is applied to the electrolytic cell voltage, which is 25% lower than that of the pure titanium plate.

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Abstract

The invention discloses a titanium-coated aluminium laminated composite plate used for an insoluble anode in electrolysis process and a preparation method thereof, belonging to the technical field of wet-process metallurgy. The preparation method comprises the following steps of: adopting one or more of techniques of electric arc spraying, spray deposition, composite rolling, melt plating and thelike to coat an aluminium layer on the single surface of the surfaces of the titanium plate, obtaining two titanium / aluminium composite plates which are then prepared into the titanium-coated aluminium laminated composite electrode material which takes aluminium as an inner core (for improving the electric conductivity of the electrode) and is coated by titanium at the outer layer. The prepared titanium-coated aluminium laminated composite plate has the advantages of excellent interface coherency, good electric conductivity, good corrosion resistance, low cost and the like, a coating titaniumanode prepared by adopting the laminated composite plate as a substrate leads the internal resistance of inert electrode to be reduced, the current distribution to be even and the electrolytic productpurity to be improved, thus achieving the effects of saving energy and reducing consumption; and the bath voltage is reduced by 10 to 30 percent compared with that of the pure titanium coating anode.

Description

technical field [0001] The invention relates to a preparation method for an insoluble anode substrate titanium-clad aluminum layered composite plate used in the fields of nonferrous metal electrolysis and chlor-alkali industry. Background technique [0002] Electrodes play a very important role in the electrolysis industry. At present, the insoluble anode materials used for rare metal extraction are mainly lead-based alloy electrodes (referred to as lead electrodes) and titanium-based coated electrodes (referred to as titanium electrodes). However, the strength of lead is low, High density, easy dissolution, high internal resistance, and the use of lead alloy as an inert anode lead to an increase in lead content in electrolytic products; while titanium has high internal resistance and high price are unavoidable contradictions. [0003] At present, the research focus at home and abroad is mainly to carry out a lot of research on the alloy system and coating to improve the per...

Claims

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Application Information

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IPC IPC(8): B32B15/01B32B15/20B21B1/38B21B47/00C23C4/12C23C4/08C23C2/12C23C4/131
Inventor 竺培显杨秀琴周生刚黄文芳张瑾许健
Owner KUNMING UNIV OF SCI & TECH
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