Melting and casting method of aluminum alloy sacrificial anode
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NORTHEASTERN UNIV LIAONING
- Publication Date
- 2016-09-28
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention belongs to the technical field of corrosion and protection, and in particular relates to a melting and casting method of an aluminum alloy sacrificial anode. Background technique
[0002] At present, the smelting process of aluminum alloy sacrificial anodes at home and abroad is based on primary aluminum ingots with a purity of 99.85% and zinc ingots with a purity of 99.99% as raw materials. Stirring - standing - slag removal - alloying - standing - casting and other processes, the aluminum alloy sacrificial anode is prepared. Furnaces are usually heated by electricity or gas. Since the metal ingot is heated from room temperature to 780°C, the smelting time is long, the energy consumption is high, and the oxidation and burning loss of the metal is serious. Generally, the oxidation burning loss rate is as high as 10%. Due to the lack of refining process in the smelting of sacrificial anode, there are a large number of bubbles and metal o...