T/DXFFA 21-2024 Active Group standards

T/DXFFA 21-2024 Wind turbine group flange and annular forgings acceptance conditions for continuous casting round bars

Publish Date: 2024-07-26 Implement Date: 2024-08-10 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/DXFFA 21-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Comprehensive steel products

Publish Date: 2024-07-26

Implement Date: 2024-08-10

Scope

Scope: This document specifies the order content, dimensions, shape, weight, and allowable deviations for continuous casting billets used in the manufacture of flanges and ring forgings for wind turbine generators, as well as the technical requirements, test methods, inspection rules, packaging, marking, and quality certificates. This document is applicable to the acceptance of purchased continuous casting billets (raw materials) by wind turbine generator flange and ring forging manufacturers (purchasers), and also to the quality control during the production and delivery process of continuous casting billets by manufacturers (suppliers). Main technical contents: This document specifies the order content, dimensions, shape, weight, and allowable deviations for continuous casting billets used in the manufacture of flanges and ring forgings for wind turbine generators, as well as the technical requirements, test methods, inspection rules, packaging, marking, and quality certificates. This document is applicable to the acceptance of purchased continuous casting billets (raw materials) by wind turbine generator flange and ring forging manufacturers (purchasers), and also to the quality control during the production and delivery process of continuous casting billets by manufacturers (suppliers). 4. Order requirements 5. Dimensions, shape, weight, and allowable deviations 5.1 Dimensions and allowable deviations 5.2 Length and allowable deviations 5.3 Shape 6. Technical requirements 6.1 Grade and chemical composition 6.2 Manufacturing method 6.3 Delivery state 6.4 Low-magnification microstructure 6.5 Surface quality 6.6 Other inspection items 7. Inspection and test methods 8. Inspection rules 8.1 Inspection and acceptance 8.2 Batching rules 8.3 Sampling quantity 8.4 Manufacturer's reinspection and determination rules 8.5 Purchaser's reinspection at the factory 9. Packaging, marking, and quality certificates