1 Scope
This standard specifies the classification, grading and mark, technical requirements, test methods, inspection rules, packaging, transport and storage, etc. of zinc alloy die castings.
This standard is applicable to the zinc alloy die castings.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 228 Metallic materials - Tensile testing at ambient temperature
GB/T 231.1 Metallic materials - Brinell hardness test - Part 1: Test method
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2829 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
GB/T 5678 Sampling methods of spectrochemical analysis for cast alloys
GB/T 6060.1 Roughness comparison specimens - Cast surfaces
GB/T 6060.3 Surface roughness comparison specimen - Part 3: Spark-eroded, shot-blasted, grit-blasted, lapped, filed and polished surface
GB/T 6414 Castings - System of dimensional tolerances and machining allowances
GB/T 12689.1 Methods for chemical analysis of zinc and zinc alloys - Part 1: Determination of aluminum content - Chromazurol S polyethylene glycol octyl phenylether-cetylpyridine bromine spectrophotometry, Chromeazurol S spectrophotometric method and EDTA titrimetry
GB/T 12689.3 The methods for chemical analysis of zinc and zinc alloys - The determination of cadmium content - The flame atomic sbsorption spectrometric method
GB/T 12689.4 The methods for chemical analysis of zinc and zinc alloys - The determination of copper content - The lead diethyldithio-carbamate spectrophotometric method and the flame atomic absorption spectrometric method and the electrolytic method
GB/T 12689.5 The methods for chemical analysis of zinc and zinc alloys - The determination of iron content - The sultosalicylic acid spectrometric method and the flame atomic absorption spectrometric method
GB/T 12689.6 The methods for chemical analysis of zinc and alloys - The determination of lead content - The oscillopolarographic method
GB/T 12689.7 The methods for chemical analysis of zinc and zinc alloys - The determination of magnesium content - The flame atomic absorption spectrometric method
GB/T 12689.10 The methods for chemical analysis of zinc and zinc alloys - The determination of tin content - The phenylfluorone-cetyltrimethyla-mmonium bromide spectrophotometric method
GB/T 13822 Test specimens for non-ferrous die-casting alloys
3 Classification, grading and marking of castings
3.1 Classification of zinc alloy die castings
Foreword i
1 Scope
2 Normative references
3 Classification, grading and marking of castings
4 Technical requirements
5 Quality assurance
6 Inspection method and rules
7 Delivery, packaging, storage and transport of die castings
Annex A (Informative) Surface quality grading of zinc alloy die castings
Annex B (Informative) Grades comparison and typical mechanical and physical performances of die casting zinc alloys
