GB/T 28412-2012 General specification of superalloy investment cast airfoils
GB/T 28412-2012 General specification of superalloy investment cast airfoils
Basic Information
Scope
〖STFZ〗1.1〖ST〗This standard specifies the technical requirements, test methods, inspection rules, and delivery conditions for the delivery of precision-cast turbine blades made from high-temperature alloys.
〖STFZ〗1.2〖ST〗This standard applies to precision-cast turbine blades and precision-cast turbine guide blades used in aeroengines, ships, and ground gas turbines, which are produced by ordinary precision casting, directional solidification casting, and single-crystal casting processes. Other types of cast blades can be used as reference.
〖STFZ〗1.3〖ST〗When the provisions in the contract agreement or dedicated technical documents are inconsistent with those in this standard, the provisions in the contract agreement or dedicated technical documents shall prevail.