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LY/T 3199-2020: Bamboo plastic composite profile reinforced with aluminum alloy
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Bamboo plastic composite profile reinforced with aluminum alloy
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LY/T 3199-2020
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Basic data | Standard ID | LY/T 3199-2020 (LY/T3199-2020) | | Description (Translated English) | Bamboo plastic composite profile reinforced with aluminum alloy | | Sector / Industry | Forestry Industry Standard (Recommended) | | Classification of Chinese Standard | B70 | | Classification of International Standard | 79.060 | | Word Count Estimation | 17,159 | | Date of Issue | 2020-03-30 | | Date of Implementation | 2020-10-01 | | Regulation (derived from) | Announcement No. 6 of 2020 by the State Forestry and Grassland Bureau | | Issuing agency(ies) | State Forestry and Grassland Administration | LY/T 3199-2020: Bamboo plastic composite profile reinforced with aluminum alloy---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Bamboo plastic composite profile reinforced with aluminum alloy
ICS 79.060
B 70
Aluminum alloy reinforced bamboo-plastic composite profile
2020-03-30 released
2020-10-01 Implementation
Issued by the State Forestry and Grassland Administration
People's Republic of China Forestry Industry Standard
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed and managed by the National Bamboo and Rattan Standardization Technical Committee (SAC/TC263).
Drafting organizations of this standard. Beijing Forestry University, Guangde Forestry Bureau, Anhui Sentai Wood Plastic Group Co., Ltd., International Bamboo and Rattan Center.
The main drafters of this standard. Zhang Shuangbao, Fang Minggang, Tang Daoyuan, Song Wei, Liu Feng, Cao Yang, Chen Zhenghao, Cheng Haitao, Wang Cuicui, Huang
Donghui, Yang Zexun, Wu Guangrong, Weng Qin, Li Lei, Deng Shaohua, Wu Wenlong, Zhang Kaiqiang, Hong Gonghua, Lin Jianyong, Hu Xiaoxia, Yu Xuefei,
Hu Yuan, Li Rongrong, Shen Yinlan, Meng Yang, Hao Chengyi, Zhou Jizhe, Li Shuxiang, Yin Hongnian, Chang Qing, Luo Junqiang, Li Ming.
Aluminum alloy reinforced bamboo-plastic composite profile
1 Scope
This standard specifies the terms and definitions, product classification, requirements, inspection methods, inspection rules, and standards for aluminum alloy reinforced bamboo-plastic composite profiles.
Logging, packaging, transportation and storage.
This standard is applicable to pellets with bamboo and thermoplastics as the main components as raw materials, aluminum alloy as the skeleton, and co-extrusion process.
The profiles are used for flooring, indoor and outdoor decoration, etc.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 228.1-2010 Metallic materials tensile test Part 1.Room temperature test method
GB/T 2411-2008 Plastics and hard rubber use a durometer to determine the indentation hardness (Shore hardness)
GB/T 2828.1-2012 Sampling inspection procedure by attributes Part 1.Batch inspection sampling plan retrieved by acceptance quality limit (AQL)
GB/T 8424.3 Textile color fastness test color difference calculation
GB/T 15102-2017 Impregnated adhesive film paper facing artificial board
GB/T 17657-2013 Test method for physical and chemical properties of wood-based panels and facing wood-based panels
GB/T 18259-2018 Artificial board and its surface decoration terms
GB/T 19367-2009 Determination of the size of wood-based panels
GB/T 22412-2016 Aluminum-plastic composite panel for general decoration
GB/T 24508-2009 Wood Plastic Flooring
3 Terms and definitions
The following terms and definitions defined in GB/T 18259-2018 apply to this document.
3.1
A profile made of bamboo and thermoplastics as the main components of pellets, aluminum alloy as the skeleton, and co-extrusion process.
3.2
Defect
Defects such as local unevenness and foreign matter on the surface of the profile.
4 categories
4.1 According to the profile cross section.
a) Solid aluminum alloy reinforced bamboo-plastic composite profile;
b) Hollow aluminum alloy reinforced bamboo-plastic composite profile.
See Appendix A.
4.2 According to the use environment.
a) Aluminum alloy reinforced bamboo-plastic composite profile for indoor use;
b) Aluminum alloy reinforced bamboo-plastic composite profile for outdoor use.
4.3 By purpose.
a) Aluminum alloy reinforced bamboo-plastic composite profile for decoration;
b) Aluminum alloy reinforced bamboo-plastic composite profile for floor.
5 requirements
5.1 Appearance quality
Should meet the requirements of Table 1.
5.2 Specifications and deviations
The shape and size are negotiated by both parties. The size deviation should meet the requirements of Table 2.
5.3 Physical and mechanical properties
Should meet the requirements of Table 3.
9 Coefficient of linear thermal expansion
6 Inspection method
6.1 Preparation of test pieces
Randomly select 3 samples from the product, and prepare test pieces according to Table 4 and Figures 1 to 3.Place the test piece at (20±2)℃, relative
Condition the treatment for 48 h under the condition of humidity (50±5)%.
6.2 Appearance quality
6.2.1 Cracks, aluminum alloy exposure, bubbles, defects, scratches
Carry out in accordance with the provisions of 6.1 of GB/T 15102-2017.
6.2.2 Color difference
According to the provisions of GB/T 8424.3.
6.3 Dimensions
6.3.1 Length, width
Carry out in accordance with the provisions of GB/T 19367-2009 in 8.2.
6.3.2 Thickness
According to the provisions of GB/T 19367-2009 in 8.1.
6.3.3 Warpage
According to the provisions of 6.5.5 in GB/T 22412-2016.
6.3.4 Edge straightness
According to the provisions of 6.5.4 in GB/T 22412-2016.
6.3.5 Diagonal difference
According to the provisions of 6.5.3 in GB/T 22412-2016.
6.4 Physical and mechanical properties
6.4.1 Bending failure load
6.4.1.1 Principle
Determine the ability of the specimen to withstand bending loads.
6.4.1.2 Instruments and tools
Universal testing machine, accuracy 1N; the length of the support of the testing machine is longer than the width of the sample, and the diameter is (15±0.5) mm. Indenter, and support
Same length and diameter (30±0.5) mm. Deformation measuring equipment, testing the deformation at the center of the test piece span, with an accuracy of 0.1mm. Force measurement system,
The accuracy is 1%. Micrometer, graduation value 0.01mm. Vernier caliper, the graduation value is 0.1mm.
6.4.1.3 Test procedure
According to the provisions of 6.5.2.3 of GB/T 24508-2009, the span between the two supports is 500mm.
6.4.1.4 Results and presentation
Record the maximum failure load of each specimen to the nearest 1N. The tested bending failure load is the average of the bending failure load of the six specimens.
Mean value, accurate to 1N.
6.4.2 Flexural strength and flexural modulus
6.4.2.1 Principle
The bending strength is to determine the ratio of the bending moment and the bending section modulus of the specimen under the maximum load. The bending modulus is to determine the
The ratio of stress to strain caused by bending load within the limits of the performance.
6.4.2.2 Instruments and tools
Universal testing machine, accuracy 1N; the length of the support of the testing machine is longer than the width of the sample, and the diameter is (15±0.5) mm. Indenter, and support
Same length and diameter (30±0.5) mm. Deformation measuring equipment, testing the deformation at the center of the test piece span, with an accuracy of 0.1mm. Force measurement system,
The accuracy is 1%. Micrometer, graduation value 0.01mm. Vernier caliper, the graduation value is 0.1mm.
6.4.2.3 Test procedure
The test is carried out in accordance with 6.5.2.3 of GB/T 24508-2009, and the span between the two supports is 500mm.
6.4.2.4 Results and presentation
The bending strength and bending elastic modulus are accurate to one decimal place. Flexural strength f
Calculate according to formula (1).
6.4.3 Tensile strength and elastic modulus
6.4.3.1 Principle
The tensile strength determines the ratio of the maximum tensile load of the specimen to the cross-sectional area of the specimen. The elastic modulus is to determine the elastic limit range of the test piece in the material
, The ratio of stress to strain produced by tensile load.
6.4.3.2 Instruments and tools
Tensile testing machine, vernier caliper, accuracy 0.01mm.
6.4.3.3 Test procedure
Prepare the test piece in accordance with GB/T 228.1-2010 clause 6.Fix the prepared test piece between the two chucks of the tensile testing machine.
The distance is about 50mm, the test piece should be kept vertical, and the center of the test piece should pass through the axis of the movable fixture of the testing machine. The entire test should be evenly loaded, take note
The maximum load max is accurate to 1% of the load value.
6.4.3.4 Results and presentation
The tensile strength and elastic modulus are accurate to one decimal place. Tensile strength of specimen t
Calculate according to formula (3).
6.4.4 Low temperature drop hammer impact
Carry out according to the provisions of 6.4.16 in GB/T 24508-2009.
6.4.5 Surface wear resistance
According to the provisions of 4.44 in GB/T 17657-2013.
6.4.6 Surface scratch resistance
6.4.6.1 Principle
Detect the ability of the surface of the test piece to resist the diamond needle scratching under a certain force.
6.4.6.2 Instruments and tools
Pneumatic five-finger scratch instrument, see appendix B.
6.4.6.4 Test procedure
Wipe the surface of the test piece and fix the tested surface upward on the stage of the five-finger scratch tester. Place the diamond tip with different weights
When the tip part touches the surface of the test piece, the tip part should touch the plane position of the test piece as much as possible.
The diamond needle is drawn across the surface of the specimen from right to left, remove the specimen, and observe the condition of the marked part of the specimen.
6.4.6.4 Results and presentation
Under natural light, at a distance of about 40cm from the surface of the test piece, observe with the naked eye from any angle whether there are obvious scratches or scratches on the surface of the scratched test piece.
Like, record the weight force value corresponding to the scratch when the naked eye just observes the scratch, that is, the surface scratch resistance value.
6.4.7 Surface hardness
Carry out according to the provisions of 8.1 in GB/T 2411-2008.
6.4.8 Surface bonding strength
According to the provisions of 4.16 in GB/T 17657-2013.
6.4.9 Resistance to cold and heat cycles
6.4.9.1 Principle
Determine the ability of the test piece to resist changes in cold and heat.
6.4.9.2 Instruments and tools
6.4.9.2.1 Warm refrigerator.
6.4.9.2.2 Calipers, the measuring range is.200 mm ~ 300 mm.
6.4.9.2.3 Right angle ruler.
6.4.9.2.4 Black marker pen.
6.4.9.2.5 Constant temperature water tank.
6.4.9.3 Test procedure
Record the length, width, thickness, and weight of the specimen, and immerse it in water at 60℃ for 12h (if necessary, use heavy objects)
Press them down), and then place the test piece in an ultra-low temperature refrigerator at (-35±1)℃ for 24h. This process constitutes a cycle.
After five cycles, put it in normal temperature water 23℃±2℃ and soak for 15min, and then leave it for 2h.
Observe the appearance and measure the size and weight.
6.4.9.4 Results and presentation
Measure the external quality of the test piece, and record the size expansion rate and water absorption rate of the test piece. The size expansion rate and water absorption rate of the tested piece are three sets of numbers
The arithmetic average of the data is accurate to 0.1%. The length, width, thickness expansion rate and water absorption rate are calculated according to formula (5) ~ formula (8).
6.4.10 Coefficient of linear thermal expansion
6.4.10.1 Principle
Determine the length change of the test piece under the alternating heat and cold.
6.4.10.2 Instruments and tools
Constant temperature blast drying oven, ultra-low temperature refrigerator, vernier caliper, precision 0.01mm.
6.4.10.3 Test procedure
Put the measured length of the test piece into a drying oven that has a constant temperature of 60°C, and place the test piece on the glass of the drying oven. After continuous heating for 48 hours
take out. The current length measurement is completed within 2 minutes. After recording, quickly put the specimen in the -20℃ environment and freeze it for 48 hours before taking it out. The measurement will be completed within 2 minutes.
Make the current length measurement and record the data.
6.4.10.4 Results and presentation
The linear thermal expansion coefficient lA of the test piece is calculated according to formula (9).
6.4.11 Color fastness to light
6.4.11.1 Principle
Place the test piece under a certain amount of exposure to determine the light fastness of the sample.
6.4.11.2 Instruments and tools
UV lamp aging test chamber, color difference meter.
6.4.11.3 Test procedure
Place the test piece in the UV lamp aging test box, the program is set to. light for 8h, irradiance 1.55W/(m2·nm), (blackboard temperature
60±3℃), spray for 0.25h, dark and high humidity 3.75h (blackboard temperature 50±3℃); cycle for 1000h, in the process of aging
The 360h, 720h, and 1000h specimens were compared with the specimens that were not subjected to the UV aging test.
6.4.11.4 Results and presentation
Measure the ΔE* for three periods of time, and use the ΔE* of 1000h to determine the light fastness of the test piece.
7 Inspection rules
7.1 Inspection classification
7.1.1 Factory inspection
The factory inspection is based on batches. Aluminum alloy reinforced bamboo-plastic composite profile for interior decoration, the inspection item is 5.3, the item number is 2, 3,
4, 5, 7, 8, 9, 10, 12.Aluminum alloy reinforced bamboo-plastic composite profiles for outdoor decoration, the inspection items are 5.3 and the item numbers are 2-12.
Aluminum alloy reinforced bamboo-plastic composite profiles for outdoor floors, the inspection items are 5.3 and the item numbers are 1-12.
7.1.2 Type inspection
Type inspection items are all required. Under normal circumstances, an inspection is carried out every year (except for aging indicators), and an inspection every three years
Aging inspection. Type inspection should be carried out in one of the following situations.
a) Trial type identification of new products or old products transferred to factories;
b) After formal production, if there are major changes in raw materials and processes, which may affect product performance;
c) When production resumes after a long-term suspension of production;
d) When there is a big difference between the factory inspection result and the last type inspection;
e) When the national market supervision and management agency requests for type inspection.
7.2 Batching and sampling
7.2.1 Batch
Take the same raw material, process, formula and specifications as one batch, and the quantity of each batch shall not exceed 50t. If the output is less than 50t, take the output of 7d as
A batch.
7.2.2 Sampling
Appearance and size inspection adopt GB/T 2828.1-2012 normal inspection one-time sampling plan, take general inspection level I, qualified quality level
AQL6.5, the sampling plan is shown in Table 5.For product performance inspection, a sufficient number of samples shall be randomly selected from samples that have passed the appearance and size inspections.
Products (generally 3).
7.3 Judgment rules
Product appearance quality, specifications and dimensions, physical and chemical properties of aluminum alloy reinforced bamboo-plastic composite profiles, and hazardous substances limit test results have all reached the same level
The batch of products shall be judged as qualified when required by the grade, otherwise the batch of products shall be judged as unqualified.
7.3.1 Determination of qualified items
7.3.1.1 Judgment of appearance and size
The appearance and size inspection results are judged according to Table 4.
7.3.1.2 Judgment of performance
In the performance test results, if there are unqualified items, double samples should be randomly selected from the original batch, and the item should be re-inspected. The re-inspection results
If all items are qualified, the performance is qualified; if there are still unqualified items in the re-inspection result, it is not qualified.
7.3.2 Determination of qualified batches
Appearance, size, performance inspection results are all qualified, then the batch is judged as qualified; if there is one unqualified, the batch is judged as unqualified.
8 Marking, packaging, transportation and storage
8.1 Logo
8.1.1 Product marking
Before the product is put into storage, the product model, trademark and production date should be marked on the appropriate part of the product.
8.1.2 Packaging mark
The package should be marked with the code, factory name, factory address, product name, production date, trademark, specification model, category, grade, and space of this standard.
The weight, quantity and drop mark of the core profile per meter length.
8.2 Packaging
Products should be packaged separately according to product category, specification and grade when leaving the factory. Enterprises should provide detailed Chinese installation and practicality based on product characteristics
Instructions. The packaging should be such that the products are bumped, scratched and non-damaged. Packaging requirements can also be negotiated by both parties.
8.3 Transportation
When loading, unloading and transporting the product, avoid heavy pressure, load and unload lightly, and should not be hit or thrown.
8.4 Storage
During storage, the products are stacked flat, away from heat sources to prevent contamination. They should be stacked separately according to category, specification, and grade.
Should be marked.
Appendix A
(Normative appendix)
Cross-sectional schematic diagram of solid and hollow aluminum alloy reinforced bamboo-plastic composite profiles
The section of solid aluminum alloy reinforced bamboo-plastic composite profile is shown in Figure A.1; the section of hollow aluminum alloy reinforced bamboo-plastic composite profile is shown in Figure A.2.
Figure A.1 Solid aluminum alloy reinforced bamboo-plastic composite profile
Figure A.2 Hollow aluminum alloy reinforced bamboo-plastic composite profile
Appendix B
(Normative appendix)
Schematic diagram of pneumatic five-finger scratcher
Figure B.1 Schematic diagram of pneumatic five-finger scratcher
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