A zinc electrolytic lead-silver alloy anode plate and manufacturing method thereof

Abstract

The invention belongs to the technical field of heavy non-ferrous metal zinc electrolysis techniques and particularly relates to a lead-silver alloy anode plate used for zinc electrolysis and a manufacturing method of the lead-silver alloy anode plate. The lead-silver alloy anode plate used for zinc electrolysis comprises a conductive copper bar, sheathing alloy of the conductive copper bar and an alloy anode plate face. The sheathing alloy of the conductive copper bar and the alloy anode plate face are integrally formed through cast rolling. A manufacturing technique process comprises the following steps that liquid alloy is manufactured; the conductive copper bar is coated with a welding agent and placed into a mold; the mold is assembled and heating is conducted; the liquid alloy is poured into a mold cavity and the temperature is lowered; an upper mold plate is pressurized; and cooling and dismounting are conducted. According to the lead-silver alloy anode plate for zinc electrolysis and the manufacturing method of the lead-silver alloy anode plate, the problems that anode plates manufactured through methods in the prior art are low in density and bad in form and welding seams influence the conductive quality are solved, and the technical effects of good integrality, compact structure and good conductivity are achieved.

Description

technical field [0001] The invention belongs to the technical field of zinc electrolysis process for heavy nonferrous metals, and in particular relates to a zinc electrolysis lead-silver alloy anode plate and a manufacturing method thereof. Background technique [0002] For a long time, the traditional process of the anode plate used in zinc electrolysis at home and abroad has the following two processing forms: 1. Manual casting method: that is, the copper conductive rod and the plate surface are cast into the anode plate by hand on the steel mold or sand mold at the same time; 2. .Manual coating and calendering method: first coat the copper conductive rod with lead coating and then weld it with the calendered and sheared alloy plate to form the anode plate. These two methods have different disadvantages. The anode plate of the manual pouring method has low density, poor shape, unevenness, and easy bending. The most important thing is that it is not durable and produces dou...

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Problems solved by technology

These two methods have different shortcomings. The anode plate of the manual pouring method has low density, poor shape, unevenness, and easy bending. The most important thing is that it is not durable and produces double waste that affects the output and quality of electrolysis: manual coating The anode plate produced by the pressing and rolling method has copper conductive rods, manual soldering of lead, and outsourcing lead clothing. The work efficiency is low, and the work of soldering lead is harmful to the physical and mental health of workers. Rolling the alloy plate requires multiple large-scale rolling equipment, which consumes a lot of power and requires a lot of manpower and rolling. The generated flash has the disadvantage of repeated melting, and the manufacturing cost of the anode plate processed by this method is high. The welding of the lead-coated conductive rod and the alloy rolled plate produces a lot of slag inclusions, which affects the conductivity, and the oxides produced by the weld are extremely easy Corroded by the electrolyte, the anode plate is broken from the weld and scrapped

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