CN102312276A - Electrolytic polishing solution for aluminium silicon alloy - Google Patents

Electrolytic polishing solution for aluminium silicon alloy Download PDF

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Publication number
CN102312276A
CN102312276A CN201110240299A CN201110240299A CN102312276A CN 102312276 A CN102312276 A CN 102312276A CN 201110240299 A CN201110240299 A CN 201110240299A CN 201110240299 A CN201110240299 A CN 201110240299A CN 102312276 A CN102312276 A CN 102312276A
Authority
CN
China
Prior art keywords
electrolytic polishing
silicon alloy
polishing solution
acid
polishing
Prior art date
Application number
CN201110240299A
Other languages
Chinese (zh)
Inventor
谢利荣
Original Assignee
吴江市精工铝字制造厂
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 吴江市精工铝字制造厂 filed Critical 吴江市精工铝字制造厂
Priority to CN201110240299A priority Critical patent/CN102312276A/en
Publication of CN102312276A publication Critical patent/CN102312276A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25FPROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00Electrolytic etching or polishing
    • C25F3/16Polishing
    • C25F3/18Polishing of light metals
    • C25F3/20Polishing of light metals of aluminium

Abstract

An electrolytic polishing solution for aluminium silicon alloy is characterized by comprising ingredients of 65-75ml/L phosphoric acid, 5-10ml/L sulfuric acid, 1-15ml/L glycerin, 1-10 wt% of melamine and 1-5ml/L hydrofluoric acid. The electrolytic polishing solution of the invention is suitable for polishing of a silicon-aluminium alloy casting; and the polished casting has a flattening, hard spot free and shining surface.

Description

The electrolytic polishing liquid of aluminum silicon alloy
Technical field
The present invention relates to a kind of metal-polishing liquid, relate to a kind of electrolytic polishing liquid of aluminum silicon alloy specifically.
Background technology
Aluminium is the more rich metallic element of occurring in nature margin, has light weight, good, the easy processing of ductility, corrosion resistant advantage, but physical strength is relatively poor.The content of silicon in industrial electrolysis aluminium is 0.01-0.15%, only is lower than iron, and siliceous high-purity aluminum-silicon alloy up to 3% has red brittleness, and the alloy of silicon content about 5% can be used and adnornment industry through the anodic oxidation black in color.In the silumin,, add the defective in the casting, make the surface treatment of this type cast aluminium alloy have big difficulty because the existence of silicon makes the metal structure heterogeneity.The decoration processing of aluminium and aluminum alloy surface; All occupy certain position in machine building, aircraft industry, opticinstrument, civilian industry; Aluminum current and aluminum alloy surface polishing are to adopt mechanical polishing, acid electrochemical etching, acidic chemical polishing, basic chemical polishing; Wherein acid electrochemical etching need use chromic acid, brings the difficult problem of wastewater treatment, not enough environmental protection.
Summary of the invention
Technical problem to be solved by this invention provides a kind of electrolytic polishing liquid of aluminum silicon alloy, has good polishing effect, and need not to use chromic acid.
For solving the problems of the technologies described above, the present invention realizes like this
The electrolytic polishing liquid of aluminum silicon alloy is characterized in that comprising following component:
Phosphoric acid 65-75ml/L
Sulfuric acid 5-10ml/L
Glycerine 1-15ml/L
Trimeric cyanamide 1-10wt%
Hydrofluoric acid 1-5 ml/L.
Glycerine plays corrosion inhibition, and hydrofluoric acid, sulfuric acid play the effect of activation matrix, and phosphoric acid is main dissolved substance, and trimeric cyanamide has the effect to duraluminum bleaching and leveling.
The processing parameter of polishing is following: temperature 75-85 ℃, and voltage 10-20v, anodic current intensity 20-30A/dm 2, time 3-5min, anode material are stainless steels or plumbous.
The present invention has following positive effect: the present invention is suitable for the polishing of silumin foundry goods, through smooth, the no pit of surface of polished, light.
Embodiment
Below in conjunction with embodiment the present invention is done further detailed description.
The specification of the silumin that present embodiment adopts is 2 * 20 * 50mm 3
Embodiment 1
The electrolytic polishing liquid of aluminum silicon alloy comprises following component: phosphoric acid 65ml/L, sulfuric acid 10ml/L, glycerine 10ml/L, trimeric cyanamide 5wt%, hydrofluoric acid 2ml/L.
The processing parameter of polishing is following: 75 ℃ of temperature, voltage 10v, anodic current intensity 20A/dm 2, time 3min, anode material are stainless steels.Foundry goods light after the polishing, surfacing.
Embodiment 2
The electrolytic polishing liquid of aluminum silicon alloy comprises following component: phosphoric acid 75ml/L, sulfuric acid 5ml/L, glycerine 15ml/L, trimeric cyanamide 10wt%, hydrofluoric acid 5ml/L.
The processing parameter of polishing is following: 85 ℃ of temperature, voltage 20v, anodic current intensity 25A/dm 2, time 5min, anode material are stainless steels.Foundry goods light after the polishing, surfacing.
Embodiment 3
The electrolytic polishing liquid of aluminum silicon alloy comprises following component: phosphoric acid 70ml/L, sulfuric acid 8ml/L, glycerine 5ml/L, trimeric cyanamide 2wt%, hydrofluoric acid 1ml/L.
The processing parameter of polishing is following: 80 ℃ of temperature, voltage 15v, anodic current intensity 30A/dm 2, time 3min, anode material are plumbous.Foundry goods light after the polishing, surfacing.
Above-mentioned embodiment does not limit technical scheme of the present invention in any form, and the technical scheme that mode obtained that every employing is equal to replacement or equivalent transformation all drops on protection scope of the present invention.

Claims (1)

1. the electrolytic polishing liquid of aluminum silicon alloy is characterized in that comprising following component: phosphoric acid 65-75ml/L, sulfuric acid 5-10ml/L, glycerine 1-15ml/L, trimeric cyanamide 1-10wt%, hydrofluoric acid 1-5 ml/L.
CN201110240299A 2011-08-22 2011-08-22 Electrolytic polishing solution for aluminium silicon alloy CN102312276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110240299A CN102312276A (en) 2011-08-22 2011-08-22 Electrolytic polishing solution for aluminium silicon alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110240299A CN102312276A (en) 2011-08-22 2011-08-22 Electrolytic polishing solution for aluminium silicon alloy

Publications (1)

Publication Number Publication Date
CN102312276A true CN102312276A (en) 2012-01-11

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CN201110240299A CN102312276A (en) 2011-08-22 2011-08-22 Electrolytic polishing solution for aluminium silicon alloy

Country Status (1)

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CN (1) CN102312276A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104032365A (en) * 2014-06-19 2014-09-10 南昌航空大学 Formula and process aiming at electrolytic polishing of siliceous aluminum alloy
CN104032364A (en) * 2014-06-19 2014-09-10 南昌航空大学 Formula and process aiming at phosphoric-acid-free electrolytic polishing of siliceous aluminum alloy
CN107177848A (en) * 2017-05-10 2017-09-19 广东伟业铝厂集团有限公司 A kind of aluminium smokeless-polishing liquid
WO2019006603A1 (en) * 2017-07-03 2019-01-10 深圳市宏昌发科技有限公司 Polishing agent, aluminum alloy part and polishing process therefor
CN111719179A (en) * 2020-05-11 2020-09-29 唐山钢铁集团有限责任公司 Electro-corrosion marking liquid for aluminum-silicon-plated coating plate and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1107904A (en) * 1994-12-29 1995-09-06 华中理工大学 Electrochemical polishing method for aluminum or aluminum alloy welding wire
CN1249367A (en) * 1998-09-25 2000-04-05 李伟明 Non-corrosion pulsively electrochemical polishing solution and process
CN1412352A (en) * 2001-10-10 2003-04-23 Wkw艾尔伯斯略自动化股份有限公司 Method and application for aluminium electrolytic polishing
US6579439B1 (en) * 2001-01-12 2003-06-17 Southern Industrial Chemicals, Inc. Electrolytic aluminum polishing processes
CN101935863A (en) * 2009-06-30 2011-01-05 比亚迪股份有限公司 Aluminum alloy electrolytic polishing solution, preparation method and aluminum alloy electrolytic polishing method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1107904A (en) * 1994-12-29 1995-09-06 华中理工大学 Electrochemical polishing method for aluminum or aluminum alloy welding wire
CN1249367A (en) * 1998-09-25 2000-04-05 李伟明 Non-corrosion pulsively electrochemical polishing solution and process
US6579439B1 (en) * 2001-01-12 2003-06-17 Southern Industrial Chemicals, Inc. Electrolytic aluminum polishing processes
CN1412352A (en) * 2001-10-10 2003-04-23 Wkw艾尔伯斯略自动化股份有限公司 Method and application for aluminium electrolytic polishing
CN101935863A (en) * 2009-06-30 2011-01-05 比亚迪股份有限公司 Aluminum alloy electrolytic polishing solution, preparation method and aluminum alloy electrolytic polishing method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
张允诚等: "《电镀手册第2版》", 31 July 1997, 国防工业出版社 *
张英: "《精细化学品配方大全》", 31 May 2001, 化学工业出版社 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104032365A (en) * 2014-06-19 2014-09-10 南昌航空大学 Formula and process aiming at electrolytic polishing of siliceous aluminum alloy
CN104032364A (en) * 2014-06-19 2014-09-10 南昌航空大学 Formula and process aiming at phosphoric-acid-free electrolytic polishing of siliceous aluminum alloy
CN107177848A (en) * 2017-05-10 2017-09-19 广东伟业铝厂集团有限公司 A kind of aluminium smokeless-polishing liquid
CN107177848B (en) * 2017-05-10 2018-04-24 广东伟业铝厂集团有限公司 A kind of aluminium smokeless-polishing liquid
WO2019006603A1 (en) * 2017-07-03 2019-01-10 深圳市宏昌发科技有限公司 Polishing agent, aluminum alloy part and polishing process therefor
CN111719179A (en) * 2020-05-11 2020-09-29 唐山钢铁集团有限责任公司 Electro-corrosion marking liquid for aluminum-silicon-plated coating plate and preparation method thereof

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Application publication date: 20120111