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Aluminum alloy smelting-purifying device and smelting-purifying method

A purification device and aluminum alloy technology, which is applied in the direction of improving process efficiency, etc., can solve problems such as easy cracks in aluminum alloys, low purity in smelting and purification, and easy corrosion at cracks, so as to improve performance, high purity in smelting and purification, and equipment compact effect

Active Publication Date: 2011-10-19
HARBIN ZHONGFEI NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problems that existing aluminum alloy smelting and purifying devices have complex structures, large volumes, low smelting and purifying purity, and the existing aluminum alloy smelting and purifying methods cause aluminum alloys to easily crack and the cracks are easy to corrode, and further provides an aluminum alloy smelting and purifying device. Alloy smelting purification device and smelting purification method

Method used

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specific Embodiment approach 1

[0025] Specific implementation mode one: as figure 1 As shown, the aluminum alloy smelting and purification device of the present embodiment includes an air guide pipe 1, a motor 2, a bearing 3, a furnace cover 4, a steel sleeve 5, a furnace body 10, an argon gas pipe 11, a graphite rotor 13, a crucible 14, a launder 19, Filter box 20, first pulley 22, second pulley 23, belt 24, a plurality of heating pipes 9, a plurality of first filter ceramic sheets 17 and a plurality of second filter ceramic sheets 18, the bottom end surface of the crucible 14 is open There is a discharge port 25, the furnace cover 4 is provided with an air guide hole 4-1, the lower end of the air guide pipe 1 is inserted into the air guide hole 4-1, and the outer wall of the crucible 14 is embedded in the furnace body 10, The furnace body 10 is provided with a plurality of heating tubes 9, the furnace cover 4 is covered on the upper end surface of the furnace body 10, the center of the furnace cover 4 is ...

specific Embodiment approach 2

[0026] Specific implementation mode two: as figure 1 As shown, the smelting and purifying device in this embodiment further includes a steel sleeve 5, the steel sleeve 5 is fitted on the graphite rotor 13, and the upper end surface of the steel sleeve 5 is in contact with the shoulder of the stepped hole 4-2. With such a design, the molten aluminum alloy can be filtered multiple times, and the smelting purification has high purity. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0027] Specific implementation mode three: as figure 1 As shown, the smelting and purifying device in this embodiment further includes a steel sleeve 5, the steel sleeve 5 is fitted on the graphite rotor 13, and the upper end surface of the steel sleeve 5 is in contact with the shoulder of the stepped hole 4-2. Such a design can increase the stability of the graphite rotor 13 . Other compositions and connections are the same as those in the first or second embodiment.

[0028] Specific implementation mode four: as figure 1 As shown, the smelting and purification device in this embodiment further includes two lifting rings 6 fixedly mounted on the upper end surface of the furnace cover 4 . Designed in this way, the furnace cover 4 is conveniently hoisted. Other components and connections are the same as those in the third embodiment.

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Abstract

The invention discloses an aluminum alloy smelting-purifying device and a smelting-purifying method, relates to a smelting device and a smelting method and aims at solving the problems that the existing aluminum alloy smelting-purifying device is complex in structure, big in volume and low in smelting purity; and the existing aluminum alloy smelting-purifying method causes the aluminum alloy to generate cracks easily and the crack parts are easy to corrode. The upper end of a graphite rotator penetrates through a stepped hole and is installed on a furnace cover by a bearing; an argon tube is arranged in the central through hole of the graphite rotator in a penetration way; a crucible is communicated with the inlet of a filter box through a liquid metal filter outlet; and the filter box is internally provided with a first filter cavity and a second filter cavity. The smelting-purifying method includes the steps as follows: firstly, cleaning the inner surface of the crucible; secondly, spraying zinc oxide aqueous solution; thirdly, adding primary aluminum and a master alloy and adding alloying elements; fourthly, introducing argon; fifthly, slagging; sixthly, standing; seventhly, vacuumizing; eight, entering the filter box for filtration; ninth, discharging melt out of the filtering box; and tenth, discharging solid blocky metal compound impurities out of the crucible. The aluminum alloy smelting-purifying device and the smelting-purifying method are used for the smelting and purification of the aluminum alloy.

Description

technical field [0001] The invention relates to an aluminum alloy smelting device and a smelting method using the device. Background technique [0002] Aluminum alloy smelting and purification has become a necessary condition for modern high-performance aluminum alloys. The purity of aluminum alloy refers to the content of impurities in the alloy (mainly Fe and Si in aluminum alloy), and the clarity of aluminum alloy refers to the content of non-metallic inclusions in the alloy. [0003] The inclusions in aluminum alloys are mainly non-metallic inclusions based on aluminum oxides. Aluminum is easily oxidized, and a dense oxide film can be formed on the surface of the melt to protect the melt. However, improper operation during melting and casting will mix oxides into the melt and even into the ingot, forming inclusions. Inclusions are the source of cracks and areas that are prone to corrosion, so they have a great influence on the processing and performance of the alloy. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/03C22B9/05C22B9/02C22B9/04
CPCY02P10/20
Inventor 李念奎
Owner HARBIN ZHONGFEI NEW TECH CO LTD
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