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GB/T 33824-2017

Chinese Standard: 'GB/T 33824-2017'
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Detail Information of GB/T 33824-2017; GB/T33824-2017
Description (Translated English): Aluminum and aluminum alloys plates, sheets and strips for cans and caps of new energy power batteries
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H61
Classification of International Standard: 77.150.10
Word Count Estimation: 15,122
Date of Issue: 2017-05-31
Date of Implementation: 2017-12-01
Quoted Standard: GB/T 3190; GB/T 3199; GB/T 3880.1-2012; GB/T 3880.3-2012; GB/T 4156; GB/T 5125; GB/T 6417.1; GB/T 7999; GB/T 8170; GB/T 16865; GB/T 17432; GB/T 19867.4; GB/T 22085.2; GB/T 30512; GB/T 20975.1; GB/T 20975.2; GB/T 20975.3; GB/T 20975.4; GB/T 20975.5; GB/T 2
Drafting Organization: Suzhou Nonferrous Metals Research Institute Co., Ltd., Northeast Light Alloy Co., Ltd.
Administrative Organization: National Standard Committee on Nonferrous Metals (SAC/TC 243)
Proposing organization: China Nonferrous Metals Industry Association
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, China National Standardization Administration Committee
Summary: This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage and quality certificates and orders (or contracts) of new energy power battery shells and covers with aluminum and aluminum alloy plates. This standard applies to electric vehicles, electric bicycles, power storage, communications energy storage and other fields with new energy power battery shell and cover with aluminum and aluminum alloy sheet (hereinafter referred to as sheet), aluminum and aluminum alloy strip (hereinafter referred to as strip).

GB/T 33824-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.10
H 61
Aluminum and aluminum alloys plates, sheets and strips
for cans and caps of new energy power batteries
新能源动力电池壳及盖用铝及铝合金板, 带材
ISSUED ON. MAY 31, 2017
IMPLEMENTED ON. DECEMBER 01, 2017
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
China.
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Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 Requirements ... 6
5 Test methods ... 10
6 Inspection rules ... 11
7 Marking, packaging, transportation, storage and quality certificate ... 15
8 Order (or contract) content ... 16
Annex A (normative) Evaluation method for laser welding property ... 17
Annex B (informative) Laser welding test procedure ... 19
Foreword
This Standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard is proposed by China Nonferrous Metals Industry Association.
This Standard is under the jurisdiction of National Technical Committee on Nonferrous
Metals of Standardization Administration of China (SAC/TC 243).
Responsible drafting organizations of this Standard. Suzhou Nonferrous Metals
Research Institute Co., Ltd., Northeast Light Alloy Co., Ltd.
Participating drafting organizations of this Standard. Suzhou Zhongse Zhongyan
Power Technology Co., Ltd., Chalco Ruimin Co., Ltd., Southwest Aluminum (Group)
Co., Ltd., Nonferrous Metals Techno-Economic Research Institute, Jiangsu Dingsheng
New Energy Materials Co., Ltd. , Guangxi Liuzhou Yinhai Aluminum Co., Ltd., Ningde
Contemporary Amperex Technology Co., Ltd., National Nonferrous Metals Quality
Supervision and Inspection Center, Guangdong Industrial Analysis and Testing Center,
Fujian South Aluminum Plate, Sheet and Strip Processing Co., Ltd., Guangdong
Yonglijian Aluminum Co., Ltd.
Main drafters of this Standard. Pan Yanfeng, Zhao Pizhi, Yang Chunxiu, Xi Huan, Xu
Hongda, Chi Zhidong, Chen Wei, Que Shisheng, Meng Fanping, Cai Hui, Shi Xiangjun,
Jiang Tao, Tan Shudong, Wu Baojian, Wen Jianping, Li Pu, Huang Xianzhi, Li Quankun,
Peng Wenwei, Xiong Qiquan.
Aluminum and aluminum alloys plates, sheets and strips
for cans and caps of new energy power batteries
1 Scope
This Standard specifies the requirements, test methods, inspection rules and marking,
packaging, transportation, storage and quality certificate and order (or contract)
content of aluminum and aluminum alloys plates, sheets and strips for cans and caps
of new energy power batteries.
This Standard applies to aluminum and aluminum alloys plates, sheets (hereinafter
referred to as plates, sheets) and aluminum and aluminum alloys strips (hereinafter
referred to as strips) for cans and caps of new energy power batteries for electric
vehicles, electric bicycles, power storage, communications energy storage and other
fields.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the dated edition cited applies. For undated
references, the latest edition of the referenced document (including all amendments)
applies.
GB/T 3190 Wrought aluminium and aluminium alloy - Chemical composition
GB/T3199 Wrought aluminium and aluminium alloy products - Packing, marking,
transporting and storing
GB/T 3880.1-2012 Wrought aluminium and aluminium alloy plates, sheets and
strips for general engineering - Part 1. Technical conditions of delivery
GB/T 3880.3-2012 Wrought aluminium and aluminium alloy plates, sheets and
strips for general engineering - Part 3. Tolerances on forms and dimensions
GB/T 4156 Metallic materials - Sheet and strip - Erichsen cupping test
GB/T 5125 Method for deep drawing cups testing of non-ferrous metals
GB/T 6417.1 Classification and explanation of imperfections in fusion welded joints
GB/T 7999 Optical emission spectrometric analysis method of aluminum and
5.1.2 “A1” mass fraction is calculated according to the method specified in GB/T 3190.
When calculating the “A1” mass fraction, take the sum of the analysis value of routine
analysis elements and suspected-excess non-routine analysis elements as “the sum
of the mass fraction of elements”.
5.1.3 The test method for prohibited substances of products shall comply with the
provisions of GB/T 30512.
5.1.4 The determination of the analysis value uses the rounding off comparison method.
Rules of rounding off for numerical values are in accordance with the provisions of
GB/T 8170, and rounding off digit shall be consistent with the limit digit specified in this
Standard or in GB/T 3190.
5.2 Dimension deviation
The measurement method for dimension deviation shall comply with the provisions of
GB/T 3880.3-2012, using corresponding measuring tools that can ensure the accuracy
to measure the split layer and tower shape. The dimension measured values are not
allowed to be rounded off.
5.3 Mechanical properties at room temperature
The sample and test method for longitudinal tensile mechanical properties at room
temperature shall comply with the provisions of GB/T 16865.
5.4 Earing rate
The test method for earing rate shall comply with the provisions of GB/T 5125.
5.5 Cupping value
The test method for cupping value shall comply with the provisions of GB/T 4156.
5.6 Laser welding property
The test method for laser welding property shall comply with the provisions of Annex
A. The laser welding test procedure may comply with the provisions of Annex B.
5.7 Appearance quality
The test method for appearance quality of products shall comply with the provisions of
GB/T 3880.1-2012.
6 Inspection rules
6.1 Inspection and acceptance
substances is in accordance with the
provisions of GB/T 30512
Dimension
deviation
For plates/sheets, take 3 pieces for
inspection; for strips, inspect roll by roll 4.3 5.2
Tensile
mechanical
properties at
room temperature
For strips, take 2 % of total rolls from each
batch (furnace), but not less than 2 rolls, and
take 3 samples from each roll;
for plates/sheets, take 2 % of total pieces
form each batch (at least 3 pieces), and cut 1
sample from each plate/sheet
4.4 5.3
Earing rate
For strips, take 2 % of total rolls from each
batch (furnace), but not less than 2 rolls, and
take 3 samples from each roll;
for plates/sheets, take 2 % of total pieces
form each batch (at least 3 pieces), and cut 1
sample from each plate/sheet
4.5 5.4
Cupping value
For strips, take 2 % of total rolls from each
batch (furnace), but not less than 2 rolls, and
take 3 samples from each roll;
for plates/sheets, take 2 % of total pieces
form each batch (at least 3 pieces), and cut 1
sample from each plate/sheet
4.6 5.5
Laser welding
property
For strips, take 1 % of total rolls, but not less
than 2 rolls from each batch (furnace); for
plates/sheets, take at least 3 pieces from
each batch; cut 2 sets of samples (1 set
consists of 2 samples) from each roll
(plate/sheet)
4.7 5.6
Appearance
quality Inspect piece (roll) by piece (roll) 4.8 5.7
6.6 Determination of test results
6.6.1 When the chemical composition of any of the samples is unqualified, and if the
furnace batch of products can be distinguished, then the furnace batch represented by
this sample is determined unqualified. Other furnace batches shall be inspected in turn,
and delivery the qualified products. If the furnace batch of products cannot be
distinguished, then this batch is determined unqualified.
6.6.2 When the prohibited substances of any of the samples is unqualified, and if the
furnace batch o......
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