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GB/T 5237.5-2017 English PDF

GB/T 5237.5: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 5237.5-2017185 Add to Cart Auto, < 3 mins Wrought aluminium alloy extruded profiles for architecture -- Part 5: Paint coating profiles Valid
GB 5237.5-2008358 Add to Cart 1 days [GB/T 5237.5-2008] Wrought aluminium alloy extruded profiles for architecture -- Part 5: PVDF coating profiles Obsolete
GB 5237.5-2004519 Add to Cart 4 days Wrought aluminium alloy extruded profiles for architecture -- Part 5: PVDF coating profiles Obsolete
GB/T 5237.5-2000439 Add to Cart 4 days Permeable sintered metal materials--Determination of fluid permeability Obsolete

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Basic data

Standard ID: GB/T 5237.5-2017 (GB/T5237.5-2017)
Description (Translated English): Wrought aluminium alloy extruded profiles for architecture -- Part 5: Paint coating profiles
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H61
Classification of International Standard: 77.150.10
Word Count Estimation: 20,263
Date of Issue: 2017-10-14
Date of Implementation: 2018-07-01
Older Standard (superseded by this standard): GB/T 5237.5-2008
Regulation (derived from): National Standard Announcement 2017 No. 26
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 5237.5-2017: Wrought aluminium alloy extruded profiles for architecture -- Part 5: Paint coating profiles


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Wrought aluminium alloy extruded profiles for architecture- Part 5. Paint coating profiles ICS 77.150.10 H61 National Standards of People's Republic of China Replace GB/T 5237.5-2008 Aluminum alloy building profiles Part 5. Painting profiles Part 5. Paintcoatingprofiles Released on.2017-10-14 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration issued

Foreword

GB/T 5237 "Aluminum Alloy Building Profile" is divided into 6 parts. --- Part 1. Substrate; ---Part 2. Anodized profiles; ---Part 3. Electrophoretic paint profiles; ---Part 4. Spray profiles; ---Part 5. Painting profiles; --- Part 6. Thermal insulation profiles. This part is the fifth part of GB/T 5237. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB 5237.5-2008 "Aluminum Alloy Building Profiles Part 5. Fluorocarbon Paint Spray Profiles". This part and Compared with GB 5237.5-2008, the main technical changes except editorial changes are as follows. --- Modified the standard name (see cover, cover of the.2008 edition); --- Deleted the statement in the preface that "this section 4.5.3.1, 4.5.5 is mandatory, and the remaining clauses are recommended" (see.2008 edition) Preface) --- Removed the preface "This section refers to AAMA2605-2005 "Aluminum extrusion materials and sheet metal properties of ultra-high performance organic coatings Summation of the test method "to be revised" (see the preface to the.2008 edition); --- Revised the applicable "scope" of this section (see Chapter 1, Chapter 1 of the.2008 edition); --- Revised the directives for normative references (see Chapter 2, Chapter 2 of the.2008 edition); --- Removed the normative reference document GB/T 228-2002 (see Chapters 2 and 5.2 of the.2008 edition); --- Removed the normative reference document GB 5237.4-2008 (see Chapters 2 and 5.4.7 of the.2008 edition); --- Removed the normative reference file GB/T 6461 (see Chapter 2 of the.2008 edition); --- Removed the normative reference file GB/T 16585 (see Chapter 2 of the.2008 edition); --- Removed the normative reference document GB/T 20975 (see Chapters 2 and 5.1 of the.2008 edition); --- Removed the normative reference document JC/T 480 (see Chapters 2 and 5.4.10 of the.2008 edition); --- Added normative reference document GB/T 5237.2 (see Chapters 2 and 7.3); --- Added normative reference document GB/T 8005.3 (see Chapters 2 and 3); --- Added normative reference document GB/T 14684 (see Chapter 2 and 5.4.11.1); --- Added normative reference document GB/T 17671 (see Chapters 2 and 5.4.8); --- Added normative reference document JC/T 479 (see Chapter 2 and 5.4.11.1); --- Amend GB/T 1865-1997 in the normative reference document to GB/T 1865-2009 (see Chapter 2 and 5.4.16.1, Chapter 2 of the.2008 edition and 5.4.15.1); --- Amend the normative reference document GB/T 8013.3-2007 to a normative reference file without a chronological number (see Chapter 2, 4.6.17, 5.4.8, 5.4.17 and 6.4, Chapters 2, 3, 4.2, 4.5.16.1, 4.5.16.2 and 5.4.16) of the.2008 edition; --- Revised guidelines for terms and definitions (see Chapter 3, Chapter 3 of the.2008 edition); --- Revised the definition of "decorative surface" (see 3.1, 3.2 of the.2008 edition); --- Removed the definitions of "paint film", "film thickness", "local film thickness", "minimum local film thickness" and "average film thickness" (see version 3.1 of.2008). 3.3, 3.4, 3.5 and 3.6); ---In the product classification, the "film layer type, film layer code, film layer composition, film layer characteristics and applicable environment of the corresponding profiles" were added. Rong (see 4.1.2); --- Revised the markup and example provisions in the product category (see 4.1.3, 4.1.2 of the.2008 edition); --- Added "quality assurance" content (see 4.2); --- Film performance project "color and color difference" was changed to "color difference" (see 4.6.3, 5.4.3 and 6,.2008 version 4.5.2, 5.4.2 and Chapter 6); --- Increased the boiling water resistance requirements and test method requirements (see 4.6.6 and 5.4.6); --- Revised the requirements for solvent resistance and test requirements (see 4.6.112 and 5.4.12,.2008 editions 4.5.11 and 5.4.11); --- Modify the heat and humidity resistance requirements to "the comprehensive damage level of the surface of the film should reach level 1" (see 4.6.15,.2008 edition) 4.5.14); --- Revised the requirements for accelerated weathering and test method requirements (see 4.6.16.1 and 5.4.11,.2008 version 4.5.15.1 and 5.4.15.1); --- Revised the requirements of natural weatherability and test method requirements (see 4.6.16.2 and 5.4.16.2,.2008 edition of 4.5.15.2 and 5.4.15.2); --- Revised the test method requirements for chemical composition and mechanical properties (see 5.1 and 5.2,.2008 and 5.1 and 5.2); --- Revised the test method requirements for film thickness (see 5.4.1, 5.4.3 of the.2008 edition); --- Revised the tolerance requirements for weight quality in the impact resistance test method (see 5.4.7, 5.4.6 of the.2008 edition); --- Revised the requirements of the test method for wear resistance (see 5.4.8, 5.4.7 of the.2008 edition); ---In the test method for hydrochloric acid resistance, "chemically pure hydrochloric acid" was changed to "analytically pure hydrochloric acid" (see 5.4.9, 5.4.8 of.2008 edition); --- Revised the test temperature and humidity requirements in the nitrate resistance test method (see 5.4.10, 5.4.9 of the.2008 edition); ---In the mortar resistance test method, the lime powder was modified to the building quicklime specified in JC/T 479, and the standard sand was modified to Standard sand specified in GB/T 14684 (see 5.4.11.1, 5.4.10 of.2008 edition); ---In the salt spray corrosion resistance test method, the requirement of "line width 1mm" is added (see 5.4.14); --- Modified the group batch method (see 6.2,.2008 version 6.2); --- Increase inspection classification (see 6.3); --- Revised the provisions of the inspection project (see 6.4, 6.3 of the.2008 edition); --- Revised the sampling regulations (see 6.5, 6.4 of the.2008 edition); --- Revised the judgment requirements of the test results (see 6.6, 6.5 of the.2008 edition); --- Revised the provisions of the logo (see 7.1.1, 7.1 of the.2008 edition); --- Revised the content requirements of the quality certificate (see 7.4, 7.5 of the.2008 edition); ---Modified the content requirements of the order form (or contract) (see Chapter 8, Chapter 8 of the.2008 edition); --- Added quality assurance content (see Appendix A); --- Added references (see references). This part was proposed by the China Nonferrous Metals Industry Association. This part is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243). This section is responsible for drafting units. Guangdong Xingfa Aluminum Co., Ltd., Guangdong Feng Aluminum Co., Ltd., Nonferrous Metals Technology and Economic Research Institute, Fujian Nanping Aluminum Industry Co., Ltd., Guangdong Jianmei Aluminum Profile Factory (Group) Co., Ltd., National Nonferrous Metals Quality Supervision and Inspection Center, Guangdong Industrial Analysis and Testing Center, Guangya Aluminum Co., Ltd., Sichuan Samsung New Material Technology Co., Ltd., Fujian Minfa Aluminum Industry Co., Ltd. Co., Ltd., Guangdong Xinhe Aluminum Industry Emerging Co., Ltd. The main drafters of this section. Chen Wenzhao, Ge Lixin, Xia Xiuqun, Chen Hui, Feng Dongsheng, Dai Yuexing, Sun Fengxian, Zhan Hao, Pan Xuezhe, Wang Zheng, Zhu Yaohui, Chao Xiaohui. The previous versions of the standards replaced by this section are. ---GB/T 5237.5-2000, GB 5237.5-2004, GB 5237.5-2008. Aluminum alloy building profiles Part 5. Painting profiles

1 Scope

This part of GB/T 5237 specifies the terms and definitions, requirements, test methods, inspection rules, marking, packaging, transportation, and Storage, quality certificate and order form (or contract) content. This section applies to organic solvent-based or aqueous solvent-based polyvinylidene fluoride (PVDF) paint as a coating for the construction of electrostatic spray aluminum alloy Hot extruded profiles (hereinafter referred to as profiles). Other aluminum alloy processed materials with the same application and surface treatment methods can also be referred to in this section.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 1732 paint film impact resistance test GB/T 1740 paint film moisture resistance test GB/T 1766 Paint and varnish coating aging rating method GB/T 1865-2009 Painted and varnish artificial weathering and artificial radiation exposure filtered xenon arc radiation GB/T 3199 Aluminum and aluminum alloy processing products packaging, marking, transportation, storage GB/T 4957 Non-conductive coating on non-magnetic base metal, thickness measurement of eddy current method GB/T 5237.1 aluminium alloy building profiles - Part 1. GB/T 5237.2 aluminium alloy building profiles - part 2. anodized profiles GB/T 6682 Analytical laboratory water specifications and test methods GB/T 6739 Paint and varnish pencil method for determination of film hardness GB/T 8005.3 Aluminium and aluminium alloys - Part 3. Surface treatment Aluminium and aluminium alloy anodized films and organic polymeric films - Part 3 GB/T 9276 coating natural weather exposure test method GB/T 9286 color and varnish paint film cross-cut test GB/T 9754 Determination of 20°, 60° and 85° specular gloss of paints and varnishes without metallic pigments Visual colorimetric test of GB/T 9761 paint and varnish GB/T 10125 artificial atmosphere corrosion test salt spray test GB/T 11186.2 Measurement methods for colour of coatings - Part 2. colour measurement GB/T 11186.3 Method of measurement of coating colours Part 3. Calculation of colour difference GB/T 14684 construction sand GB/T 17671 Cement mortar strength test method (ISO method) JC/T 479 Building Lime

3 Terms and definitions

The following terms and definitions as defined in GB/T 8005.3 apply to this document. 3.1 Decorative surface exposedsurfaces Profiles that are processed, assembled into articles and mounted on buildings, visually visible surfaces (including in an open or closed state).

4 requirements

4.1 Product Classification 4.1.1 Grade, Status and Size Specifications The grade, condition and size specifications shall comply with the provisions of GB/T 5237.l. 4.1.2 Type of film layer, film layer code, film layer composition, film layer characteristics and applicable environment of corresponding profiles The type of film layer, film layer code, film layer composition, film layer characteristics and applicable environment of the corresponding profiles are shown in Table 1. Table 1 Type of film layer, film layer code, film layer composition, film layer characteristics and applicable environment of corresponding profiles Membrane type film layer code a film layer composition characteristics and corresponding environment of the corresponding profile Two coat LF2-25 primer plus topcoat The second coating is generally a monochromatic or pearlescent mica scintillation effect film layer, which is not required Additional varnish protection. The second coating is suitable for solar radiation and the atmosphere Corrosive environment Three-coat LF3-34 primer, topcoat and varnish The three-coating is generally a metallic effect film in which the ball is used in the paint. Grinding aluminum powder to obtain metal texture effect, the metal texture is different from the second coating The layer of pearlescent mica film, because the aluminum powder is easy to oxidize or peel off, the surface of the film Varnish protection is required to ensure the overall performance of the film. Metallic aluminum paint Generally do not make two coatings. Three coatings are suitable for strong solar radiation and atmosphere Corrosive environment Four coat LF4-55 primer, barrier paint, top coat and varnish The four-coat layer is generally a metal effect film layer with higher performance requirements, and the film layer On the basis of the three-coat layer, a barrier film layer that blocks ultraviolet rays is added, Improved UV resistance. The four coatings are suitable for strong solar radiation, Extremely corrosive atmosphere Note. The film characteristics, coating characteristics and requirements of primer, barrier paint, topcoat and varnish are shown in Table A.2. a “LF” in the film designation indicates painting treatment, the first Arabic digit after “LF” indicates the type of film layer, and the Arabic number after “-” indicates the film layer. The minimum local film thickness. 4.1.3 Tags and examples Profile marking by product name, this part number, grade, status, section code and length, color (or color number), film order Show. Examples of tags are as follows. Example 1. The paint color is 2345, the film type is four coat, 6063 grade, T5 state, the cross-section code is YST10002, the length is 4000mm, the paint profile, the standard Recorded as. Painting profile GB/T 5237.5-6063T5-YST10002×4000 color 2345LF4-55 Example 2. The paint color is red, the film type is two coat, 6063 grade, T5 state, the cross-section code is YST10002, the length is 4000mm, the paint profile, the standard Recorded as. Painting profile GB/T 5237.5-6063T5-YST10002×4000 red LF2-25 4.2 Quality Assurance 4.2.1 Process Process assurance see A.1. 4.2.2 Raw materials Refer to A.2 for the quality of the substrate, pretreatment reagents and fluorocarbon paint. 4.3 Chemical composition The chemical composition should meet the requirements of GB/T 5237.1. 4.4 Mechanical properties Mechanical properties should meet the requirements of GB/T 5237.1. 4.5 Dimensional deviation After the profile is removed, the dimensional deviation shall comply with the provisions of GB/T 5237.1. Dimensional changes caused by the film layer should not affect its Assembly and use. 4.6 Film properties 4.6.1 Film thickness 4.6.1.1 The film thickness on the decorative surface shall comply with the requirements of Table 2. Table 2 film thickness Membrane type Average film thickness Mm Local film thickness a Mm Two coats ≥ 30 ≥ 25 Three coatings ≥40 ≥34 Four coatings ≥65 ≥55 a Due to the complexity of the cross-sectional shape of the profile, the local film thickness on some surfaces of the profile (such as internal corners, grooves, etc.) is allowed to be lower than the values specified in Table 2, but not allowed There is a phenomenon of exposure. 4.6.1.2 If the non-decorative surface requires film thickness, it shall be agreed between the supplier and the buyer and specified in the order form (or contract). 4.6.2 Gloss The gloss value of the film shall be in accordance with the order form (or contract), with an allowable deviation of ±5 gloss units. 4.6.3 Color difference The color of the film should be basically the same as the model agreed between the supplier and the buyer. The color difference between the monochromatic film and the sample when measured by the instrument method ΔE*ab≤1.5, the color difference ΔE*ab≤1.5 between the profiles of the same batch (referred to as the delivery batch). 4.6.4 Hardness After the pencil scratch test, the hardness of the film layer should be not less than 1H. 4.6.5 Adhesion The dry adhesion, wet adhesion and boiling water adhesion of the film layer should reach level 0. 4.6.6 Resistance to boiling water After the high-pressure water immersion test, the surface of the film layer should be free from falling off, wrinkling, foaming, loss of light, discoloration, etc., and the adhesion should reach 0. 4.6.7 Impact resistance After the impact resistance test, the film layer is allowed to have micro cracks, but a sticky film layer is not allowed on the adhesive tape. 4.6.8 Abrasion resistance After the falling sand test, the wear coefficient should be not less than 1.6L/μm. 4.6.9 Hydrochloric acid resistance After the hydrochloric acid resistance test, there should be no bubbles or other significant changes on the surface of the film. 4.6.10 Resistance to nitric acid After the nitric acid resistance test, the color difference value ΔE*ab ≤ 5.0 of the monochromatic film layer. 4.6.11 mortar resistance After the mortar resistance test, the surface of the film layer should not fall off or other obvious changes. 4.6.12 Solvent resistance After the solvent resistance test, the surface of the profile did not expose the substrate. 4.6.13 detergent resistance After the detergent resistance test, there should be no blistering, shedding or other obvious changes on the surface of the film. 4.6.14 Salt spray corrosion resistance After the salt spray corrosion test, the unilateral penetration corrosion width under the film on both sides of the scribe line shall not exceed 2.0 mm, and the sides of the scribe line shall be 2.0 mm apart. Some of the layers should not be corroded. 4.6.15 Heat and humidity resistance After the heat and humidity resistance test, the comprehensive damage level of the surface of the film layer should reach Grade 1. 4.6.16 Weather resistance 4.6.16.1 Accelerated weatherability After the accelerated weathering test, the gloss retention of the film layer (the gloss value after the film layer test is relative to the gloss value before the test) The ratio should be not less than 75%, the color difference value ΔE*ab≤3.0, and the chalking level reaches 0 level. 4.6.16.2 Natural weatherability When the demand side has requirements for natural weatherability, it shall be agreed between the supplier and the buyer, and shall be indicated in the order form (or contract), and the film shall be naturally resistant for 10 years. Membrane gloss retention rate after the test (can be set for different atmospheric corrosion test stations, but not less than 10 years) (The percentage of the gloss value after the film test is relative to the gloss value before the test) should be not less than 50%; the color difference value ΔE*ab≤5.0; film thickness loss The rate should be no more than 10%. 4.6.17 Other When the demand side has requirements for other performances, the supplier and the buyer shall refer to GB/T 8013.3 for specific agreement and indicate in the order form (or contract). 4.7 Appearance quality The film on the decorative surface of the profile shall be smooth and uniform, and no flow marks, wrinkles, bubbles, shedding and other defects affecting the use shall be permitted.

5 Test methods

5.1 Chemical composition The chemical composition analysis method is carried out in accordance with the provisions of GB/T 5237.1. The film layer on the surface of the sample should be removed before the test. 5.2 Mechanical properties The test method of mechanical properties is carried out in accordance with the provisions of GB/T 5237.1. The film layer on the surface of the sample should be removed before the test. 5.3 Dimensional deviation The method for detecting the dimensional deviation is carried out in accordance with the provi......

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