GB/T 38472-2023 Recycling material for cast aluminium alloys
1 Scope
This document specifies the classification, requirements, test methods, inspection rules, incoming inspection, marking, packaging, transportation, storage and quality certificate as well as purchase order (or contract) information of recycling materials for cast aluminium alloys.
This document is applicable to the recycling material for cast aluminium alloys obtained from aluminium scrap after pretreatment such as shearing, disassembly and artificial separation.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 5085 (All parts) Identification standards for hazardous wastes
GB/T 7999 Optical emission spectrometric analysis method of aluminum and aluminum alloys
GB/T 8005.1 Aluminium and aluminium alloy - Terms and definitions - Part 1: Product and method of processing and treatment
GB/T 8005.4 Aluminium and aluminium alloy terms and definitions - Part 4: Aluminium scrap
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 17432 Methods for sampling for analyzing the chemical composition of wrought aluminum and aluminum alloys
GB/T 20975 (All parts) Methods for chemical analysis of aluminium and aluminium alloys
YS/T 491 Flux for aluminium and aluminium alloy
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 8005.1 and GB/T 8005.4 apply.
4 Classification
4.1 See Table 1 for the category, description, typical source, type of composition and packaging method of materials.
Table 1 Category, description, typical source, type of composition and packaging method of materials
Figure 1 Densified bale of aluminium piece - From mixed new processing residues, chippings and solids (see Tough A in Table 1, GB/T 13586-2021)
Figure 2 Densified bale of aluminium piece - From new aluminium foil (see Terse in Table 1, GB/T 13586-2021)
a) Appearance b) Profile
Figure 3 Briquetted piece of aluminium piece - From new aluminium foil (see Terse in Table 1, GB/T 13586-2021)
Figure 4 Briquetted piece of chips - From aluminium chips of the same designation (see Teens in Table 1, GB/T 13586-2021)
4.2 The size specification and net weight of secondary aluminium ingots shall be determined by the supplier and the purchaser through negotiation. See Table 2 for the size specification and net weight of aluminium pieces and chips.
Table 2 Size specification and net weight of aluminium pieces and chips
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Requirements
6 Test methods
7 Inspection rules
8 Incoming inspection
9 Marking, packaging, transportation, storage and quality certificate
10 Purchase order (or contract) information
Annex A (Informative) Typical examples of aluminium pieces and chips with cast aluminium alloy or multiplex material as aluminium material
Annex B (Informative) Vibrating sieve
Annex C (Normative) Test method of volatile substance
Annex D (Normative) Radioactive pollution inspection
Annex E (Informative) Hydraulic single-shaft shredder
Annex F (Normative) Incoming inspection
Annex G (Normative) Preparation of test samples for arbitration analysis of chemical composition and inspection method of metal recovery rate
Annex H (Informative) General requirements of portable spectrometer and test method for inspection items
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