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GB/T 467-2010 English PDF (GBT467-2010)

GB/T 467-2010 English PDF (GBT467-2010)

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GB/T 467-2010: Copper cathode

GB/T 467-2010
GB
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.30
H 62
Replacing GB/T 467-1997
Copper cathode
阴极铜
ISSUED ON. JANUARY 10, 2011
IMPLEMENTED ON. OCTOBER 01, 2011
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.
3. No action is required - Full-copy of this standard will be automatically and immediately delivered to your EMAIL address in 0~60 minutes.
Table of contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Requirements ... 5
4 Test method ... 7
5 Inspection rules ... 8
6 Marking, packaging, transportation, storage and quality certificates ... 10 7 Contract (or order) content ... 11
Foreword
This standard was drafted in accordance with the rules given in GB/T
1.1-2009.
In this standard, grade A copper (Cu-CATH-1) equivalently adopts the impurity limit of the designation (Cu-CATH-1) in EN 1978.1998 “Copper and copper alloys - Copper cathode”. The N.1 standard copper (Cu-CATH-2) modifies and adopts the impurity limit of the designation Grade2A in ASTM B 115-00 (R2004) “Electrolytic copper cathode”; AND the No.2 standard copper (Cu-CATH-3) modifies and adopts the impurity limit of the designation Cu-CATH-2 in EN 1978.1998 “Copper and copper alloy - copper cathode”.
As compared with EN 1978.1998 and ASTM B 115-00 (R2004), the differences of this standard are as follows.
- The limit of bismuth in standard copper (Cu-CATH-2) is ≤ 0.0005%, which is higher than that in designation Grade 2A (≤ 0.0003%) in ASTM B 115-00 (R2004). The limit of lead is ≤ 0.002%, which is lower than that in the designation Grade 2A (≤ 0.0040%). It does not consider the selenium,
tellurium, and silver. The limit of phosphorus is increased, BUT the rest limit indicators are the same;
- The bismuth and lead in No.2 standard copper (Cu-CATH-3) equivalently adopt the limit of the designation Cu-CATH-2 in EN 1978.1998; AND the
silver equivalently adopts the limit of the designation Cu-CATH-1.
This standard replaces GB/T 467-1997 “Copper cathode”. As compared with the original standard, the main changes are as follows.
- ADD the designation No.2 standard copper (Cu-CATH-3);
- ADD the specifications on the physical performance indicators AND the mass resistivity;
- MAKE unified specification on the surface quality;
- As for the copper cathode chemical composition analysis method, ADD the YS/T 464 “Methods for analytical of copper cathode – The optical emission spectrometry”;
- ADD the copper cathode production sampling and sample preparation
method.
This standard shall be under the jurisdiction of the National Nonferrous Metals Standardization Committee (SAC/TC 243).
Copper cathode
1 Scope
This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, quality certificate, and contract (or order) contents of the copper cathode.
This standard applies to copper cathode produced by electrolytic refining or electrolytic deposition. AND it is usually used in remelting.
2 Normative references
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this Standard.
GB/T 351 Metallic material – Resistivity measurement method
GB/T 5121 (all parts) Methods for chemical analysis of copper and copper alloys
GB/T 8170 Rules for rounding off for numerical values and expression and
judgement of limiting values
YS/T 464 Methods for analytical of copper cathode – The optical emission spectrometry
3 Requirements
3.1 Product classification
The copper cathode is divided into three designations in accordance with chemical compositions. grade A copper (Cu-CATH-1), No.1 standard copper (Cu-CATH-2), AND No.2 standard copper (Cu-CATH-3).
3.2 Chemical composition
3.2.1 The chemical composition of grade A copper shall comply with the
requirements of Table 1; the chemical composition of No.1 standard copper shall comply with the requirements of Table 2; AND the chemical composition of No.2 standard copper shall comply with the requirements of Table 3.
4.2 Copper cathode mass resistivity analysis method is in accordance with the requirements of GB/T 351.
4.3 The surface quality is inspected visually.
5 Inspection rules
5.1 Inspection and acceptance
5.1.1 The product shall be inspected by the technical supervision department of the supplier, to ensure that the product quality complies with the provisions of this standard or the contract (or the order form), AND meanwhile fill in the quality certificate.
5.1.2 The purchaser may conduct the quality inspection of the received
product. If the result of the inspection does not conform to the provisions of this standard, it may notice the supplier within 30 days after receiving the product, to make it settled through negotiation between the supplier and the purchaser. If arbitration is required, the arbitration sampling is made jointly by the supplier and the purchaser.
5.2 Batching
The product shall be submitted in batches, AND each batch is composed of the copper cathode of the same designation produced from the same day and the same circulation system. AND the mass of a batch shall not exceed 500 t. 5.3 Copper cathode sampling and sample preparation method
5.3.1 Production sampling method
Copper cathode sampling is made through the drilling machine, OR otherwise by the punch.
a) TAKE a bundle (1 to 3 blocks) from every 10 ~ 15 bundles of copper
cathode of this batch; TAKE samples from 10 points from each block,
wherein 9 points form a complete 3-transverse and 3-longitudinal
checked order, AND the other point is located at the edge; AND it shall take samples from the 4 different edges as composed by every 4 bundles
of samples.
b) USE a drill bit of a diameter 10 mm ~ 20 mm to drill several holes in the checked order within the rectangular area 100 mm around the copper
cathode, during which it is not allowed to use any lubricant; AND the
drilling speed shall be such as able to avoid oxidization.
c) During sampling, the surface shall be cleaned, the surface skin shall not be removed, AND the hole drilling depth shall be such as able to drill
through the sample block. MAKE the resulting cuttings be subjected to
40-mesh (420 µm) sieves; USE a magnet to remove the iron which is
5.4 Determination of test results
5.4.1 The numerical results of the test results shall be rounded off and determined in accordance with the provisions of GB/T 8170.
5.4.2 If the chemical composition and physical performance are inconsistent with this standard or contract (or order form), this batch is determined as disqualified.
5.4.3 If the test results of the surface quality are inconsistent with the provisions of this standard or the contract (or the order form), this block is determined as disqualified.
6 Marking, packaging, transportation, storage and
quality certificates
6.1 Copper cathode shall be packaged by the high strength materials which are not easy to produce pollution into bundles of such mass as suitable for handling. However, it may also not be packaged if agreed between the supplier and the purchaser.
6.2 Each bundle of copper cathode must have a clear marking, specifying. a) Manufacturer marking;
b) Product name and designation;
c) Batch number and weight.
6.3 Transportation and storage
During transportation and storage, it shall not contaminate the product. 6.4 Each batch of copper cathode shall be accompanied by a quality certificate, indicating.
a) Name and address of factory;
b) Product name and designation;
c) Batch number;
d) Number and batch weight;
e) Analytical test results and marking of technical supervision department; f) This standard number;
g) Exit-factory date.

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