GB/T 40386-2021 Recycling materials for pure aluminium
1 Scope
This document specifies the classification, requirements, test methods, inspection rules, incoming inspection and acceptance, packaging, transportation, storage and quality certificate as well as purchase order (or contract) information of recycling materials for pure aluminium.
This document is applicable to pure aluminium materials for investment casting (hereinafter referred to as materials) obtained from recycled aluminium after processing such as sorting.
2 Normative references
The following documents contain provisions 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/T 8005.1 Aluminium and aluminium alloy - Terms and definitions - Part 1: Product and method of processing and treatment
GB/T 40382-2021 Recycling materials for wrought aluminium alloys
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 8005.1 and the following apply.
3.1
recycling materials for pure aluminium
pure aluminium materials for investment casting that meet the relevant requirements of this document and are obtained from recycled aluminium after processing such as sorting
3.2
foreign material
non-metallic substance mixed in or attached to a material
Note: Including wood, textile, plastic, glass, stone, paper, sand, rubber, sludge, powder (powder, oil stain, crystalline salt, fiber powder, etc.) with a particle size of not greater than 2mm, and blocks covered with organic polymer coating, excluding the packaging material of this product and other substances that need to be used during transportation.
3.3
volatile substance
substance that may be separated from materials after proper heating treatment at a temperature below the melting point of the metal
3.4
metal recovery rate
proportion (mass fraction) of pure aluminium produced after the materials are subjected to pretreatment and smelting according to the methods specified herein
4 Classification
4.1 See Table 1 for the category, description, source and packaging method of materials and Annex A for the typical examples of material sources.
Table 1 Category, description, source and packaging method of materials
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Requirements
6 Test methods
7 Inspection rules
8 Incoming inspection and acceptance
9 Packaging, transportation, storage and quality certificate
10 Purchase order (or contract) information
Annex A (Informative) Typical examples of material sources
Annex B (Normative) Incoming inspection and acceptance
