1 Scope
This part of GB/T 8013 specifies the terms and definitions, classification, performance requirements, test methods, inspection rules and the like for anodic oxide coatings on aluminium and aluminium alloys.
This part is applicable to anodic oxide coatings on aluminium used in the fields such as mechanical engineering, municipal administration, transportation, electrical, packaging, construction, decoration, etc.
This part is not applicable to non-porous barrier anodic oxide coatings, anodic oxide coatings produced in chromic acid solution and anodic oxide coatings used as organic coatings or metallic undercoat.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 250 Textiles—Tests for color fastness—Grey scale for assessing change in color
GB/T 1865-2009 Paints and varnishes—Artificial weathering and exposure to artificial radiation—Exposure to filtered xenon-arc radiation
GB/T 2423.51 Environmental testing—Part 2: Test methods—Test Ke: Flowing mixed gas corrosion test
GB/T 6461 Methods for corrosion testing of metallic and other inorganic coatings on metallic substrates—Rating of test specimens and manufactured articles subjected to corrosion tests
GB/T 6682 Water for analytical laboratory use—Specification and test methods
GB/T 8005.3 Aluminium of aluminium alloys—Terms and definitions—Part 3: Surface treatment terms
GB/T 8014.1 Anodizing of aluminium and its alloys—The measuring method of thickness of anodic oxide coatings—Part 1: The measuring principle
GB/T 8014.2 Anodizing of Aluminium and Its Alloys—The Measuring Method of Thickness of Anodic Oxide Coatings—Part 2: Mass-loss Method
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 8753.1 Anodizing of aluminium and its alloys—Assessment of quality of sealed anodic oxidation coatings—Part 1: Measurement of the loss of mass after immersion in acid solution(s)
GB/T 8753.3 Anodizing of aluminium and its alloys—Assessment of quality of sealed anodic oxidation coatings—Part 3: Admittance
GB/T 8753.4 Anodizing of aluminium and its alloys—Assessment of quality of sealed anodic oxide coatings—Part 4: Dye spot test with prior acid treatment
GB/T 9789 Metallic and other non-organic coatings—Sulfur dioxide test with general condensation of moisture
GB/T 9790 Metallic and related coatings—Vickers and knoop microhardness tests
GB/T 10125 Corrosion tests in artificial atmospheres—Salt spray tests
GB/T 11112 Non-ferrous metals atmospheric corrosion testing method
GB/T 12967.1 Test methods for anodic oxidation coatings of aluminium and aluminium alloys—Part1: Measurement of mean specific abrasion resistance of anodic oxidation coatings with an abrasive jet test apparatus
GB/T 12967.2 Test methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 2: Measurement of wear resistance and wear index of anodic oxidation coatings with an abrasive wheel wear test apparatus
GB/T 12967.3 Test Methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 3: Copper accelerated acetic acid salt spray test (CASS test)
GB/T 12967.4 Test methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 4: Determination of the comparative fastness to ultraviolet light and heat of coloured anodic oxidation coatings
GB/T 12967.5 Test methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 5: Assessment of resistance of anodic oxidation coatings to cracking by deformation
GB/T 12967.6 Test Methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 6: Determination of color differences and appearance of colored anodic oxide films by viewing method
GB/T 12967.7 Test methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 7: Measurement of abrasion resistance of anodic oxidation coatings by sand falling test apparatus
GB/T 18911-2002 Thin-film terrestrial photovoltaic (PV) modules—Design qualification and type approval
GB/T 20854 Corrosion of metals and alloys—Accelerated testing involving cyclic exposure to salt mist “dry” and “wet” condition
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 8005.3 and the following apply.
3.1
dyed anodic coating
Anodic oxide coatings colored by adsorbing dye or pigment in pore structure
3.2
bright anodizing
Anodizing characterized by high specular reflectance
3.3
protective anodizing
Anodizing with corrosion resistance and abrasion resistance as its main features and appearance as secondary or unimportant features
3.4
decorative anodic coating
Anodic oxide coatings characterized by uniform and beautiful appearance
4 Classification
4.1 See Table 1 for the coating codes, surface treatment methods and typical application of anodic oxide coatings.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Performance requirements
6 Test methods
7 Inspection rules
Annex A (Normative) Measurement instructions of average coating thickness and local coating thickness
Annex B (Normative) Determination of hole sealing quality of anodic oxide coatings by sodium molybdate phosphate method without nitric acid predip
Annex C (Informative) Determination of alkali resistance—potentiometer method
1 Scope
This part of GB/T 8013 specifies the terms and definitions, classification, performance requirements, test methods, inspection rules and the like for anodic oxide coatings on aluminium and aluminium alloys.
This part is applicable to anodic oxide coatings on aluminium used in the fields such as mechanical engineering, municipal administration, transportation, electrical, packaging, construction, decoration, etc.
This part is not applicable to non-porous barrier anodic oxide coatings, anodic oxide coatings produced in chromic acid solution and anodic oxide coatings used as organic coatings or metallic undercoat.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 250 Textiles—Tests for color fastness—Grey scale for assessing change in color
GB/T 1865-2009 Paints and varnishes—Artificial weathering and exposure to artificial radiation—Exposure to filtered xenon-arc radiation
GB/T 2423.51 Environmental testing—Part 2: Test methods—Test Ke: Flowing mixed gas corrosion test
GB/T 6461 Methods for corrosion testing of metallic and other inorganic coatings on metallic substrates—Rating of test specimens and manufactured articles subjected to corrosion tests
GB/T 6682 Water for analytical laboratory use—Specification and test methods
GB/T 8005.3 Aluminium of aluminium alloys—Terms and definitions—Part 3: Surface treatment terms
GB/T 8014.1 Anodizing of aluminium and its alloys—The measuring method of thickness of anodic oxide coatings—Part 1: The measuring principle
GB/T 8014.2 Anodizing of Aluminium and Its Alloys—The Measuring Method of Thickness of Anodic Oxide Coatings—Part 2: Mass-loss Method
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 8753.1 Anodizing of aluminium and its alloys—Assessment of quality of sealed anodic oxidation coatings—Part 1: Measurement of the loss of mass after immersion in acid solution(s)
GB/T 8753.3 Anodizing of aluminium and its alloys—Assessment of quality of sealed anodic oxidation coatings—Part 3: Admittance
GB/T 8753.4 Anodizing of aluminium and its alloys—Assessment of quality of sealed anodic oxide coatings—Part 4: Dye spot test with prior acid treatment
GB/T 9789 Metallic and other non-organic coatings—Sulfur dioxide test with general condensation of moisture
GB/T 9790 Metallic and related coatings—Vickers and knoop microhardness tests
GB/T 10125 Corrosion tests in artificial atmospheres—Salt spray tests
GB/T 11112 Non-ferrous metals atmospheric corrosion testing method
GB/T 12967.1 Test methods for anodic oxidation coatings of aluminium and aluminium alloys—Part1: Measurement of mean specific abrasion resistance of anodic oxidation coatings with an abrasive jet test apparatus
GB/T 12967.2 Test methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 2: Measurement of wear resistance and wear index of anodic oxidation coatings with an abrasive wheel wear test apparatus
GB/T 12967.3 Test Methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 3: Copper accelerated acetic acid salt spray test (CASS test)
GB/T 12967.4 Test methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 4: Determination of the comparative fastness to ultraviolet light and heat of coloured anodic oxidation coatings
GB/T 12967.5 Test methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 5: Assessment of resistance of anodic oxidation coatings to cracking by deformation
GB/T 12967.6 Test Methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 6: Determination of color differences and appearance of colored anodic oxide films by viewing method
GB/T 12967.7 Test methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 7: Measurement of abrasion resistance of anodic oxidation coatings by sand falling test apparatus
GB/T 18911-2002 Thin-film terrestrial photovoltaic (PV) modules—Design qualification and type approval
GB/T 20854 Corrosion of metals and alloys—Accelerated testing involving cyclic exposure to salt mist “dry” and “wet” condition
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 8005.3 and the following apply.
3.1
dyed anodic coating
Anodic oxide coatings colored by adsorbing dye or pigment in pore structure
3.2
bright anodizing
Anodizing characterized by high specular reflectance
3.3
protective anodizing
Anodizing with corrosion resistance and abrasion resistance as its main features and appearance as secondary or unimportant features
3.4
decorative anodic coating
Anodic oxide coatings characterized by uniform and beautiful appearance
4 Classification
4.1 See Table 1 for the coating codes, surface treatment methods and typical application of anodic oxide coatings.
Contents of GB/T 8013.1-2018
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Performance requirements
6 Test methods
7 Inspection rules
Annex A (Normative) Measurement instructions of average coating thickness and local coating thickness
Annex B (Normative) Determination of hole sealing quality of anodic oxide coatings by sodium molybdate phosphate method without nitric acid predip
Annex C (Informative) Determination of alkali resistance—potentiometer method
