CN106757081A - A kind of processing method for removing aluminium shape surface corrosion pit - Google Patents

A kind of processing method for removing aluminium shape surface corrosion pit Download PDF

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Publication number
CN106757081A
CN106757081A CN201611205042.4A CN201611205042A CN106757081A CN 106757081 A CN106757081 A CN 106757081A CN 201611205042 A CN201611205042 A CN 201611205042A CN 106757081 A CN106757081 A CN 106757081A
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CN
China
Prior art keywords
section bar
aluminium section
parts
aluminium
shape surface
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Legal status (The legal status 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 status listed.)
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CN201611205042.4A
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Chinese (zh)
Inventor
张中礼
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Anhui Jingchang Aluminum Co Ltd
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Anhui Jingchang Aluminum Co Ltd
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Priority to CN201611205042.4A priority Critical patent/CN106757081A/en
Publication of CN106757081A publication Critical patent/CN106757081A/en
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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/12Light metals
    • C23G1/125Light metals aluminium
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23FNON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/22Light metals

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

The present invention relates to aluminium section bar technical field, and in particular to a kind of processing method of removal aluminium shape surface corrosion pit, following steps are specifically included:By the aqua calcis immersion that the aluminium section bar concentration being corroded for reclaiming is 53%;Aluminium section bar nitrogen after immersion is blown to surface;Aluminium section bar antioxygen immersion is steeped 12 days;Aluminium section bar is placed in boiling in the acetum that concentration is 5% again, until acetate concentration is changed into 1% stopping boiling;Wet aluminium section bar feeding fire grate is heated to 620 680 DEG C, 200 220 DEG C are then cooled to aluminium section bar with 20 DEG C of carbon dioxide, aluminium section bar is then heated to 550 600 DEG C again, then the aluminium shape surface of heat is sprayed with hydrogen peroxide again.Handling process of the present invention is easy, and mass energy can be saved compared to smelting aluminum again, and often the corrosion spot of the aluminium shape surface for the treatment of can be removed voluntarily, and the damage of aluminium section bar is only 0.3% in processing procedure, and the handling process is with low cost.

Description

A kind of processing method for removing aluminium shape surface corrosion pit
Technical field
The present invention relates to aluminium section bar technical field, and in particular to a kind for the treatment of side of removal aluminium shape surface corrosion pit Method.
Background technology
Aluminium alloy extrusions is most widely used class non-ferrous metal structural material in industry, Aeronautics and Astronautics, automobile, Machine-building, ship, building, finishing.And widely applied in chemical industry.With in recent years science and technology and industrial economy Develop rapidly, the demand to Welded structural member is increasing, the Research on Weldability for enabling aluminum alloy to also therewith deeply.Aluminium The extensive use of alloy promotes the development of aluminum alloy solder technology, while answering for aluminium alloy has been expanded in the development of solder technology again Just turn into one of focus of research with the solder technology in field, therefore aluminium alloy.Small (ρ=the 2.7g/cm of density of fine aluminium3), greatly It is approximately the 1/3 of iron, fusing point is low (660 DEG C), and aluminium is face-centred cubic structure, therefore with plasticity very high, it is easy to process, can be made into each Section bar, sheet material are planted, corrosion resistance is good;But the intensity of fine aluminium is very low, annealed condition value is about 8kgf/mm2, therefore should not make knots Structure material.By long-term production practices and scientific experiment, people gradually with add alloying element and with heat treatment etc. method Carry out reinforced aluminum, this has just obtained a series of aluminium alloy.Alloy that certain element formed is added the advantages of fine aluminium light weight is kept While can also have intensity higher, σ b values are respectively up to 24~60kgf/mm2.So so that its " specific strength " (intensity with The ratio σ b/ ρ of proportion) surpass many steel alloys, as preferable structural material, it is widely used in machine-building, Transport Machinery, moves The aspect such as power machinery and aircraft industry, fuselage, covering, compressor of aircraft etc. are often manufactured with aluminium alloy, to mitigate deadweight.Using Aluminium alloy replaces the welding of steel plate materialses, and construction weight can mitigate more than 50%.Aluminium section bar is chronically exposed in air after use, Its surface occurs substantial amounts of corrosion pit, so the general aluminium section bar for being subject to corrode mostly is directly to reclaim founding again, Again smelting aluminum can cause substantial amounts of energy waste.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of processing method for removing aluminium shape surface corrosion pit.
The technical problems to be solved by the invention are realized using following technical scheme:
A kind of processing method for removing aluminium shape surface corrosion pit, specifically includes following steps:
(1) aqua calcis that the aluminium section bar concentration being corroded for reclaiming is 53% is soaked 1-2 days;
(2) the aluminium section bar nitrogen after immersion is blown to surface;
(3) aluminium section bar is steeped 1-2 days with antioxygen immersion, then aluminium shape surface is cleaned up;
(4) aluminium section bar is placed in boiling in the acetum that concentration is 5% again, until acetate concentration is changed into 1% stopping steaming Boil;
(5) wet aluminium section bar feeding fire grate is heated to 620-680 DEG C, then with -20 DEG C of carbon dioxide to aluminium Section bar is cooled to 200-220 DEG C, and aluminium section bar then is heated into 550-600 DEG C again, then again with hydrogen peroxide to hot aluminium section bar Surface sprays, and is used after can be used as new aluminium section bar after aluminium section bar natural drying.
The antioxygen liquid is made up of the raw material of following parts by weight:4-8 parts of glutinous rice amylopectin, ethanol 8-12 parts, tetrem 0.5-1 parts of base ammonium bromide, ethylenediamine tetramethylene fork 0.5-1 parts of Alendronate, astragalin 3-4 parts, 2-2.5 parts of ribose -5- phosphoric acid, Water 160-200 parts;Its preparation method is that each raw material is well mixed.
The antioxygen liquid is made up of the raw material of following parts by weight:6 parts of glutinous rice amylopectin, 10 parts of ethanol, tetrem bromide Change 0.8 part of ammonium, 0.8 part of Alendronate of ethylenediamine tetramethylene fork, 3.5 parts of astragalin, 2.8 parts of ribose -5- phosphoric acid, 180 parts of water;Its Preparation method is that each raw material is well mixed.
The beneficial effects of the invention are as follows:Handling process of the present invention is easy, and mass energy can be saved compared to smelting aluminum again, passes through Often the corrosion spot of the aluminium shape surface for the treatment of can be removed voluntarily, and the damage of aluminium section bar is only 0.3% in processing procedure, The handling process is with low cost.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1
A kind of processing method for removing aluminium shape surface corrosion pit, specifically includes following steps:
(1) aqua calcis that the aluminium section bar concentration being corroded for reclaiming is 53% is soaked 1-2 days;
(2) the aluminium section bar nitrogen after immersion is blown to surface;
(3) aluminium section bar is steeped 1-2 days with antioxygen immersion, then aluminium shape surface is cleaned up;Antioxygen liquid by weighing as follows The raw material for measuring number is made:6 parts of glutinous rice amylopectin, 10 parts of ethanol, 0.8 part of tetraethylammonium bromide, ethylenediamine tetramethylene fork 0.8 part of Alendronate, 3.5 parts of astragalin, 2.8 parts of ribose -5- phosphoric acid, 180 parts of water;Its preparation method is to be well mixed each raw material ;
(4) aluminium section bar is placed in boiling in the acetum that concentration is 5% again, until acetate concentration is changed into 1% stopping steaming Boil;
(5) wet aluminium section bar feeding fire grate is heated to 620-680 DEG C, then with -20 DEG C of carbon dioxide to aluminium Section bar is cooled to 200-220 DEG C, and aluminium section bar then is heated into 550-600 DEG C again, then again with hydrogen peroxide to hot aluminium section bar Surface sprays, and is used after can be used as new aluminium section bar after aluminium section bar natural drying.
Embodiment 2
A kind of processing method for removing aluminium shape surface corrosion pit, specifically includes following steps:
(1) aqua calcis that the aluminium section bar concentration being corroded for reclaiming is 53% is soaked 1-2 days;
(2) the aluminium section bar nitrogen after immersion is blown to surface;
(3) aluminium section bar is steeped 1-2 days with antioxygen immersion, then aluminium shape surface is cleaned up;Antioxygen liquid by weighing as follows The raw material for measuring number is made:4 parts of glutinous rice amylopectin, 8 parts of ethanol, 0.5 part of tetraethylammonium bromide, ethylenediamine tetramethylene fork phosphine 0.5 part of sour sodium, 3 parts of astragalin, 2 parts of ribose -5- phosphoric acid, 160 parts of water;Its preparation method is that each raw material is well mixed;
(4) aluminium section bar is placed in boiling in the acetum that concentration is 5% again, until acetate concentration is changed into 1% stopping steaming Boil;
(5) wet aluminium section bar feeding fire grate is heated to 620-680 DEG C, then with -20 DEG C of carbon dioxide to aluminium Section bar is cooled to 200-220 DEG C, and aluminium section bar then is heated into 550-600 DEG C again, then again with hydrogen peroxide to hot aluminium section bar Surface sprays, and is used after can be used as new aluminium section bar after aluminium section bar natural drying.
Embodiment 3
A kind of processing method for removing aluminium shape surface corrosion pit, specifically includes following steps:
(1) aqua calcis that the aluminium section bar concentration being corroded for reclaiming is 53% is soaked 1-2 days;
(2) the aluminium section bar nitrogen after immersion is blown to surface;
(3) aluminium section bar is steeped 1-2 days with antioxygen immersion, then aluminium shape surface is cleaned up;Antioxygen liquid by weighing as follows The raw material for measuring number is made:8 parts of glutinous rice amylopectin, 12 parts of ethanol, 1 part of tetraethylammonium bromide, ethylenediamine tetramethylene fork phosphine 1 part of sour sodium, 4 parts of astragalin, 2.5 parts of ribose -5- phosphoric acid, 200 parts of water;Its preparation method is that each raw material is well mixed;
(4) aluminium section bar is placed in boiling in the acetum that concentration is 5% again, until acetate concentration is changed into 1% stopping steaming Boil;
(5) wet aluminium section bar feeding fire grate is heated to 620-680 DEG C, then with -20 DEG C of carbon dioxide to aluminium Section bar is cooled to 200-220 DEG C, and aluminium section bar then is heated into 550-600 DEG C again, then again with hydrogen peroxide to hot aluminium section bar Surface sprays, and is used after can be used as new aluminium section bar after aluminium section bar natural drying.
General principle of the invention and principal character and advantages of the present invention has been shown and described above.The technology of the industry Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its Equivalent thereof.

Claims (3)

1. it is a kind of remove aluminium shape surface corrosion pit processing method, it is characterised in that specifically include following steps:
(1) aqua calcis that the aluminium section bar concentration being corroded for reclaiming is 53% is soaked 1-2 days;
(2) the aluminium section bar nitrogen after immersion is blown to surface;
(3) aluminium section bar is steeped 1-2 days with antioxygen immersion, then aluminium shape surface is cleaned up;
(4) aluminium section bar is placed in boiling in the acetum that concentration is 5% again, until acetate concentration is changed into 1% stopping boiling;
(5) wet aluminium section bar feeding fire grate is heated to 620-680 DEG C, then with -20 DEG C of carbon dioxide to aluminium section bar 200-220 DEG C is cooled to, aluminium section bar is then heated to 550-600 DEG C again, then again with hydrogen peroxide to hot aluminium shape surface Spraying, being used after can be used as new aluminium section bar after aluminium section bar natural drying.
2. a kind of processing method for removing aluminium shape surface corrosion pit as claimed in claim 1, it is characterised in that described anti- Oxygen liquid is made up of the raw material of following parts by weight:4-8 parts of glutinous rice amylopectin, ethanol 8-12 parts, tetraethylammonium bromide 0.5-1 Part, 0.5-1 parts of Alendronate of ethylenediamine tetramethylene fork, astragalin 3-4 parts, 2-2.5 parts, water 160-200 parts of ribose -5- phosphoric acid; Its preparation method is that each raw material is well mixed.
3. a kind of processing method for removing aluminium shape surface corrosion pit as claimed in claim 2, it is characterised in that described anti- Oxygen liquid is made up of the raw material of following parts by weight:6 parts of glutinous rice amylopectin, 10 parts of ethanol, 0.8 part of tetraethylammonium bromide, second two 0.8 part of Alendronate of amine tetramethylene fork, 3.5 parts of astragalin, 2.8 parts of ribose -5- phosphoric acid, 180 parts of water;Its preparation method is will be each Raw material is well mixed.
CN201611205042.4A 2016-12-23 2016-12-23 A kind of processing method for removing aluminium shape surface corrosion pit Pending CN106757081A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112048728A (en) * 2020-09-04 2020-12-08 江苏科源铝业有限公司 Aluminum profile surface corrosion spot removing device and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102409325A (en) * 2011-12-06 2012-04-11 中国科学院金属研究所 Environmentally-friendly corrosion-resistant chromium-free chemical conversion liquid and method for preparing chemical conversion film
US20120094130A1 (en) * 2010-10-15 2012-04-19 Universidade Estadual De Campinas Coating Compositions With Anticorrosion Properties
CN103643235A (en) * 2013-11-29 2014-03-19 台澳铝业(台山)有限公司 High-brightness aluminum-alloy polishing section and production process thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120094130A1 (en) * 2010-10-15 2012-04-19 Universidade Estadual De Campinas Coating Compositions With Anticorrosion Properties
CN102409325A (en) * 2011-12-06 2012-04-11 中国科学院金属研究所 Environmentally-friendly corrosion-resistant chromium-free chemical conversion liquid and method for preparing chemical conversion film
CN103643235A (en) * 2013-11-29 2014-03-19 台澳铝业(台山)有限公司 High-brightness aluminum-alloy polishing section and production process thereof

Non-Patent Citations (1)

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张维 主编: "《客房服务与管理800题》", 30 September 1991, 辽宁科学技术出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112048728A (en) * 2020-09-04 2020-12-08 江苏科源铝业有限公司 Aluminum profile surface corrosion spot removing device and method

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