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Long-acting composite type graphite stirring device for aluminum alloy refining and preparation method

A technology of stirring device and aluminum alloy, which is applied to mixers with rotating stirring devices, chemical instruments and methods, mixers, etc., to achieve uniform stirring effect, reliable use, and suitable for mass production

Active Publication Date: 2019-12-24
LIUZHOU VOCATIONAL & TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the surface of the graphite stirring device is metallized and modified, and a new type of TiC coating material is used to replace the traditional coating material, which enhances the oxidation resistance and corrosion resistance of the graphite stirring device, and fundamentally solves the problem of the existing graphite stirring device itself. inherent flaw

Method used

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  • Long-acting composite type graphite stirring device for aluminum alloy refining and preparation method
  • Long-acting composite type graphite stirring device for aluminum alloy refining and preparation method
  • Long-acting composite type graphite stirring device for aluminum alloy refining and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A long-term composite graphite stirring device for aluminum alloy refining, such as Figure 1-Figure 5 As shown, it includes a hollow shaft 6 with a through hole 61 and a lower straight-leaf spiral mixed-flow impeller 1, a lower sleeve 4, a multi-aperture blade 3, an upper sleeve 5, and an upper layer installed on the hollow shaft in sequence from bottom to top. Straight-leaf spiral mixed-flow impeller 2, the lower straight-leaf spiral mixed-flow impeller, the multi-aperture blade, the upper straight-leaf spiral mixed-flow impeller and the hollow shaft are connected by left-handed threads, the lower sleeve, the upper sleeve and the hollow shaft There is a gap fit between them. The lower straight blade spiral mixed flow impeller and the upper straight blade spiral mixed flow impeller are mainly composed of 5 straight blade radial flow blades 11 arranged at the bottom and 5 helical surface shafts with logarithmic helix as the profile line located above. The water guide b...

Embodiment 2

[0047] A long-term composite graphite stirring device for aluminum alloy refining, such as Figure 1-Figure 5 As shown, it includes a hollow shaft 6 with a through hole 61 and a lower straight-leaf spiral mixed-flow impeller 1, a lower sleeve 4, a multi-aperture blade 3, an upper sleeve 5, and an upper layer installed on the hollow shaft in sequence from bottom to top. Straight-leaf spiral mixed-flow impeller 2, the lower straight-leaf spiral mixed-flow impeller, the multi-aperture blade, the upper straight-leaf spiral mixed-flow impeller and the hollow shaft are connected by left-handed threads, the lower sleeve, the upper sleeve and the hollow shaft There is a gap fit between them. The lower straight blade spiral mixed flow impeller and the upper straight blade spiral mixed flow impeller are mainly composed of 6 straight blade radial flow blades 11 arranged at the bottom and 6 helicoid shafts with logarithmic helix as the profile line located above. The water guide blade 12...

Embodiment 3

[0050] A long-term composite graphite stirring device for aluminum alloy refining, such as Figure 1-Figure 5 As shown, it includes a hollow shaft 6 with a through hole 61 and a lower straight-leaf spiral mixed-flow impeller 1, a lower sleeve 4, a multi-aperture blade 3, an upper sleeve 5, and an upper layer installed on the hollow shaft in sequence from bottom to top. Straight-leaf spiral mixed-flow impeller 2, the lower straight-leaf spiral mixed-flow impeller, the multi-aperture blade, the upper straight-leaf spiral mixed-flow impeller and the hollow shaft are connected by left-handed threads, the lower sleeve, the upper sleeve and the hollow shaft There is a gap fit between them. The lower straight blade spiral mixed flow impeller and the upper straight blade spiral mixed flow impeller are mainly composed of 8 straight blade radial flow blades 11 arranged at the bottom and 8 helicoid shafts with logarithmic helix as the profile line located above. The water guide blade 12...

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Abstract

The invention relates to a long-acting composite type graphite stirring device for aluminum alloy refining and a preparation method. The long-acting composite type graphite stirring device comprises ahollow shaft, a lower layer straight blade spiral mixed-flow impeller, a lower sleeve, a multi-aperture blade, an upper sleeve and an upper layer straight blade spiral mixed-flow impeller, and the lower layer straight blade spiral mixed-flow impeller, the lower sleeve, the multi-aperture blade, the upper sleeve and the upper layer straight blade spiral mixed-flow impeller are installed on the hollow shaft. The straight blade spiral mixed-flow impellers are mainly composed of straight blade radial flow type blades and spiral face axial water guide blades with log spirals as molded lines. The stirring impeller structure is improved, advantages of axial flow type and radial flow type stirring impellers are combined, the multi-aperture blade is added, thus aluminum alloy melt can be dispersedinto small-size fluid masses effectively, and the stirring and mixing uniformity of aluminum alloy components is improved. In addition, metallization modified treatment is conducted on the surface ofthe graphite stirring device, a novel TiC coating material is adopted for replacing a traditional coating material, oxidation resistance and corrosion resistance of the graphite stirring device are enhanced, and the inherent defects of an existing graphite stirring device are overcome radically.

Description

technical field [0001] The invention relates to a long-acting composite graphite stirring device for aluminum alloy refining and a preparation method thereof, belonging to the technical field of aluminum alloy melting and casting. Background technique [0002] Existing technologies related to the long-term composite graphite stirring device and preparation method for aluminum alloy refining, such as: "A Whole Body for Purifying Aluminum Melt" disclosed in the Chinese Invention Patent (Patent No. 201610704027.8) applied by Xi'an Chaoma Technology Co., Ltd. Carbon-ceramic composite material rotor and its preparation method”, which specifically relates to an integral carbon-ceramic composite material rotor for aluminum melt purification and its preparation method. Another example: "A Method for Preparing Graphite Rotors Using Waste Graphite Cathodes of Aluminum Electrolyzers" disclosed in the Chinese invention patent (application number 201611106412.9) applied by Shenyang Unive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C1/06B01F7/00
CPCC22C1/026C22C1/06B01F27/11251B01F27/114Y02P10/20
Inventor 楼华山王大红陈文勇楼江燕宋东福陈冬玲李宏军莫文锋蔡英韦江波刘汉华汪东明
Owner LIUZHOU VOCATIONAL & TECHN COLLEGE
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