Method for welding large-area zinc electrolysis anode plates
A welding method and zinc electrolysis technology, applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of hidden dangers of environmental protection, occupational hazards, difficult to control welding quality effectively and stably, high labor intensity, etc., and improve the level of occupational hygiene. , The effect of energy saving and consumption reduction is remarkable, and the surface of the weld is smooth and flat.
Inactive Publication Date: 2013-09-04
YUNNAN CHIHONG ZINC & GERMANIUM
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Problems solved by technology
[0003] (1) Inefficiency: The welding depth of one side of the lead plate is about 2mm-3mm, and the lead plate of 7mm to 9mm needs to be welded twice on the front and back to meet the use
The anode plate needs to be turned over manually during the welding process, which is labor-intensive
Therefore welding efficiency is low
[0004] (2) Poor quality stability: the melting point of lead is low (327.5°C). When oxygen-acetylene welding is used, the lead-silver alloy plate is easily melted and flowed by heat, resulting in shallow welds and poor penetration, and the welding quality is difficult to effectively stabilize control
When the lead plate exceeds 7mm, it still cannot be welded through two times of front and back welding, which will affect the connection strength and conductivity of the anode plate
[0005] (3) Potential environmental hazards and occupational hazards: During the welding process, lead vapors are inevitably formed after the lead plates are heated by high-temperature flames, which bring harm to the occupational health of operators and the working environment.
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[0019] A large-area zinc electrolysis anode plate welding method is characterized in that the friction stir welding process is applied to the preparation of an anode lead plate, and an anode beam suitable for welding, a rolled lead plate structure and welding process parameters are developed.
[0020] 1) Prepare a new structure of anode beams and rolled lead plates
[0021] In order to meet the friction stir welding process, a new structure of anode beam 1 and rolled lead plate 3 is prepared to ensure that the thickness difference between the welded end face of the anode beam and the welded end face of the rolled lead plate is less than 0.3 mm; the straightness of the welded seam 2 after butt joint is less than 0.3 mm, to effectively control the butt joint within the stirring radius of the stirring welding needle. The schematic diagram of the welding of the anode beam 1 and the rolled lead plate 3 is as follows figure 1 shown.
[0022] 2) Test reasonable welding process par...
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The invention discloses a method for welding large-area zinc electrolysis anode plates. The method is characterized in that a stir friction welding technology is applied to manufacturing anode lead plates, and structures and process parameters which are suitable for welding the anode lead plates are developed. The method has the advantages that the stir friction welding technology is applied to welding the lead plates for the first time, a process is free of electric arc or splashing or slag inclusion or smoke or filler wires or beveling or the like, a welding procedure is clean and environment-friendly, weld joints are good in weld penetration, conductivity and corrosion resistance and high in welding strength, surfaces of the weld joints are smooth and flat, and the like.
Description
technical field [0001] The invention belongs to the technical field of zinc electrolysis anode plate welding method. Background technique [0002] At present, artificial oxygen-acetylene welding is used for zinc electrolysis anode plate welding. This technology has the following disadvantages: [0003] (1) Low efficiency: The welding depth of one side of the lead plate is about 2mm-3mm, and the lead plate of 7mm to 9mm needs to be welded twice on the front and back to meet the use. The anode plate needs to be turned over manually during the welding process, which is labor intensive. Therefore, welding efficiency is low. [0004] (2) Poor quality stability: the melting point of lead is low (327.5°C). When oxygen-acetylene welding is used, the lead-silver alloy plate is easily melted and flowed by heat, resulting in shallow welds and poor penetration, and the welding quality is difficult to effectively stabilize control. When the lead plate exceeds 7mm, it still cannot be...
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Inventor 黄云东罗永光张良红栾国红胡如忠朱贞平韩朝云王卫兵周开敏李启龙李明亮黄成彦
Owner YUNNAN CHIHONG ZINC & GERMANIUM