GB/T 33945-2017Rods of chromium zirconium copper for engine commutator (English PDF)
电机整流子换向片用铬锆铜棒材
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 12, 2017
Implementation date
February 1, 2018
Scope
GB/T 33945-2017 is the English-translated version of 电机整流子换向片用铬锆铜棒材.
GB/T 33945-2017 is the Chinese national standard for the chromium zirconium copper rods used for the commutator segments of electric motors.
It fixes the requirements, the test methods, the inspection rules, the marking, the packaging, the transport and the storage, together with the quality certificate and the content of the purchase order or contract.
The grades, the tempers and the dimensions of the rod are set out in a table.
For the checks it cites the mechanical and physical test methods GB/T 228.1-2010, GB/T 231.1, GB/T 351, GB/T 3310 and GB/T 26303.2, the sampling standard GB/T 2828.1, the composition and packaging standards GB/T 5231 and GB/T 8888, all parts of the chemical analysis series GB/T 5121, and the non-ferrous metal methods YS/T 336, YS/T 478, YS/T 482, YS/T 668 and YS/T 815. It was issued on 12 July 2017 and has applied since 1 February 2018.
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Document preview — GB/T 33945-2017
National Standard of the People's Republic of China
- ICS
- 77.150.30
- Classification
- H 62
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Requirements
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
1 Scope
This standard specifies the commutator motor commutator with chromium zirconium copper bar requirements, test methods, inspection rules, signs, packaging, transportation, storage Deposit, quality certificate and purchase order (or contract) content.
This standard applies to commutator commutator with chromium zirconium copper bar (hereinafter referred to as bar).
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.
Tensile testing of metallic materials - Part 1: Test methods at room temperature
GB/T 231.1 Brinell hardness test of metallic materials - Part 1: Test methods
GB/T 351 metallic materials resistance coefficient measurement method
GB/T 2828.1 Sampling procedures for sampling inspection - Part 1: Batch inspection sampling plan retrieved by acceptance quality limit (AQL)
GB/T 3310 copper alloy rod ultrasonic testing methods
GB/T 5121 (all parts) - Methods for chemical analysis of copper and copper alloys
GB/T 5231 processing copper and copper alloy grades and chemical composition
GB/T 8888 non-ferrous metal processing products packaging, marking, transport, storage and quality certificate
GB/T 26303.2 copper and copper alloy processing materials Dimensions measurement method Part 2 rods, lines, profiles
YS/T 336 Copper, nickel and alloy pipes and bars fracture inspection methods
YS/T 478 copper and copper alloy conductivity eddy current test method
Methods for analysis of YS/T 482 copper and copper alloys - Photoemission emission spectrometry
YS/T 668 copper and copper alloy physical and chemical detection sampling method
YS/T 815 copper and copper alloys Preparation of mechanical properties and process performance samples
3 Requirements
3.1 Product classification
3.1.1 Brand, state, specifications
Bar grades, conditions and specifications should be consistent with the provisions of Table 1.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 228.1-2010Metallic Materials — Tensile Testing — Part 1: Method of Test at Room Temperature
- GB/T 231.1Metallic materials - Brinell hardness test - Part 1: Test method
- GB/T 351Metallic materials—Resistivity measurement method
- GB/T 2828.1Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
- GB/T 3310Ultrasonic testing method of copper and copper alloy bars
- GB/T 5231Designation and chemical composition of wrought copper and copper alloys
GB/T 5121 · YS/T 478
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Related Standards
GB/T 231.1-2018 — Metallic materials - Brinell hardness test - Part 1: Test method
GB/T 26303.2-2010 — Measuring methods for dimensions and shapes of wrought copper and copper alloy - Part 2: Rod，wire and profile
GB/T 2828.1-2012 — Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
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