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GB/T 15115-2024: Die casting aluminum alloys Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 15115: Historical versions
Similar standardsGB/T 15115-2024: Die casting aluminum alloys---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT15115-2024GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.120.10 CCS J 31 Replacing GB/T 15115-2009 Die casting aluminum alloys Issued on. APRIL 25, 2024 Implemented on. APRIL 25, 2024 Issued by. State Administration for Market Regulation; Standardization Administration of the People's Republic of China. Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Terms and definitions... 6 4 Alloy designations and codes... 6 5 Technical requirements... 7 6 Test methods... 8 7 Inspection rules... 9 8 Marking, quality certificate, packaging, transportation and storage... 10 Annex A (informative) Comparison of major die casting aluminum alloy codes at home and abroad... 12 Annex B (informative) Die casting aluminum alloy performance and other characteristics... 13 Annex C (informative) Characteristics and application examples of die casting aluminum alloys... 15 Annex D (normative) Testing method for slag inclusion in die casting aluminum alloy ... 161 ScopeThis document specifies the designations and codes, technical requirements, test methods, inspection rules and markings, quality certificates, packaging, transportation and storage of die casting aluminium alloys. This document is applicable to the production and inspection of die casting aluminum alloy materials (aluminum alloy liquid and aluminum alloy ingots).2 Normative referencesThe following referenced documents are indispensable for the application 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 5611, Foundry terminology GB/T 7999, Optical emission spectrometric analysis method of aluminum and aluminum alloys GB/T 20975.3, Methods for chemical analysis of aluminium and aluminium alloys - - Part 3.Determination of copper content GB/T 20975.4, Methods for chemical analysis of aluminium and aluminium alloys - - Part 4.Determination of iron content GB/T 20975.5, Methods for chemical analysis of aluminium and aluminium alloys - - Part 5.Determination of silicon content GB/T 20975.7, Methods for chemical analysis of aluminium and aluminium alloys -3 Terms and definitionsFor the purposes of this document, the terms and definitions defined in GB/T 5611 apply.4 Alloy designations and codes4.1 Representation methods for alloy designations The aluminum alloy designation for die casting is composed of the chemical symbols of aluminum and the main alloying elements. 4.2 Representation methods for alloy codes In the alloy code, "YL" ("Y" and "L" are the first letters of the Chinese pinyin for "Ya" and "Lü" respectively) indicates die casting aluminum alloy. The first digits 1, 2, 3, and 4 after YL respectively represent Al-Si, Al-Cu, Al-Mg, and Al-Zn series alloys, representing the alloy code.5 Technical requirements5.1 Chemical composition The chemical composition of die casting aluminum alloy shall comply with the requirements of Table 1. 5.2 Slag inclusion The slag inclusion grade of die casting aluminum alloy shall comply with the requirements in Table 2. 5.3 Appearance and fracture 5.3.1 The appearance quality of the die casting aluminum alloy liquid surface shall be clean, without obvious slag and non-metallic floating objects. 5.3.2 The surface of the die casting aluminum alloy ingot shall be free of contaminants such as grease, dirt, corrosion products, scum or any other foreign matter.6 Test methods6.1 Chemical composition 6.1.1 The test method for chemical composition shall be carried out in accordance with No. Alloy designation Alloy code b 6.1.2 In case of dispute over the analysis results, arbitration shall be conducted in accordance with GB/T 20975.3, GB/T 20975.4, GB/T 20975.5, GB/T 20975.7, GB/T 20975.8, GB/T 20975.10, GB/T 20975.11, GB/T 20975.12, GB/T 20975.14, GB/T 20975.16 and GB/T 20975.17. 6.2 Slag inclusion The testing method for slag inclusions in die casting aluminum alloys shall be carried out in accordance with the provisions of Annex D.7 Inspection rules7.1 Inspection items The inspection items are shown in Table 3. 7.2 Batching A batch is composed of products from the same aluminum ladle or melting furnace. 7.3 Sampling Sampling regulations are shown in Table 4. 7.4 Judgement rules 7.4.1 If the chemical composition test fails, double the number of samples can be taken for reinspection. 7.4.2 If the slag inclusion test fails, it is allowed to take double the number of samples for reinspection. 7.4.3 If the appearance and fracture inspection fail, the batch of products will be deemed unqualified.8 Marking, quality certificate, packaging, transportation and storage8.1 Marking 8.1.1 Each packaging unit (ingot bundle, insulation bag) of die casting aluminum alloy shall have the following mark. When the purchaser has special requirements, it shall be determined by negotiation between the supplier and the buyer. 8.1.2 The number identification, production batch number and material designation of the die casting aluminum alloy liquid insulation bag shall be clear. 8.2 Quality certificate Inspection item Sampling regulations 8.3 Packaging 8.3.1 Die casting aluminum alloy ingots shall be bundled. Each designation shall be bundled separately. The packaging shall be firm to ensure that it will not fall apart during transportation. 8.4 Transportation 8.4.1 During transportation, die casting aluminum alloy ingots shall meet the stacking requirements and be protected from rain, moisture, dropping and severe collision. 8.5 Storage Die casting aluminum alloys shall be stored in dry, well-ventilated warehouses without harmful gases. They shall not be stored together with acids, alkalis or other corrosive chemicals. 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