GB/T 33228-2016: Translated English of Chinese Standard. (GBT 33228-2016, GB/T33228-2016, GBT33228-2016): Aluminum Alloy Extruded Tubes for High-frequency Electric Transformer
https://www.chinesestandard.net, 12.07.2019 - 13 Seiten
This Standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage, quality certificate and order form (or contract) contents of aluminum alloy extruded tubes for high-frequency electric transformer. This Standard applies to aluminum alloy round tubes (hereinafter referred to as tubes) which are produced by divergent die extrusion in the fields of transmission, transformation and distribution.
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Marking packaging transportation storage and quality certificate
Order form or contract contents
allowed to cut allowed to inspect alloy extruded tubes Alloy grade aluminum alloys GB/T aluminum and aluminum Aluminum Co appearance quality arbitration batch or heat Brinell hardness test buyer chemical composition China Nonferrous Metals conductivity and microstructure Cut one sample deliver the qualified deviation Negative deviation dimension deviation distribution OR inspected extrusion front end foreign metal inclusions form or contract hardness The Brinell heat treatment furnace High-frequency Electric Transformer inner diameter Inspection method judge the batch length L meters low-magnification organization sample melting order Nominal outer diameter order form organization is unqualified Positive deviation Negative properties at room provisions of GB/T quality certificate requirements of GB/T requirements of Table room temperature sample is unqualified sampling quantity specified in GB/T specified in Table Standard status and dimensions tensile mechanical properties tensile test test method tube for repeated Tube GB/T Tubes for High-frequency tubes shall comply vertical tensile mechanical wrought aluminum