GB 26488-2025 Safety specification for magnesium alloy die casting English, Anglais, Englisch, Inglés, えいご
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ICS77.120.20
CCS H 61
National Standard of the People's Republic of China
GB26488-2025
Replaces GB26488-2011
Safety specification for magnesium alloy die casting
Released on August 1, 2025 Implementation on February 1, 2026
State Administration for Market Regulation, National Standardization Administration
Contents
Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 General Requirements
5 Plant layout and buildings (structures)
6 Equipment and Facility Safety
7 Work Safety
8 Verification Method
Safety specification for magnesium alloy die casting
1 Scope
This document specifies the safety management, plant layout, and safety technical requirements for buildings (structures), equipment, and operations of magnesium alloy die casting production.
The verification method is described.
This document applies to the safety management of production links such as magnesium alloy high-pressure casting and semi-solid die casting.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references. For dated references, only the version corresponding to that date applies to this document. For undated references, the latest version (including all amendments) applies to this document.
GB15577 Safety Regulations for Dust Explosion Prevention
GB18218 Identification of Major Hazard Sources of Hazardous Chemicals
GB39800.1 Specification for the Provision of Personal Protective Equipment Part 1: General Principles
GB39800.3 Specification for the Provision of Personal Protective Equipment Part 3: Metallurgy and Nonferrous Metals
GB50016 Code for Fire Protection Design of Buildings
GB50057 Code for Lightning Protection Design of
Buildings
GB50058 Code for Design of Electrical Installations for Explosive
Atmospheres
GB50187 Code for General Layout Design of Industrial Enterprises
GB50544 Standard for General Planning and Transportation Design of Nonferrous Metals Industry
GB50630 Code for Fire Protection Design of Nonferrous Metals Engineering
GB55036 General Code for Fire Protection Facilities
GB55037 General Code for Fire Protection of Buildings
AQ4272 Technical Specification for Dust Explosion Prevention Safety in Machining of Aluminum and Magnesium Products
TSG21 Safety Technical Supervision Regulations for Stationary Pressure Vessels
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Shotsleeve
A cylindrical container that holds the molten metal to be injected and applies pressure to it.
3.2
Plunger is a plunger used
to inject molten metal from the injection chamber into the mold cavity and to withstand the pressure generated by the metal during the solidification process.
3.3
Die casting unit diecastingunit is a complete set of
automated production equipment consisting of a die casting machine and auxiliary equipment.
3.4
Cleaning of casting is the process of
removing the gate, vent groove, overflow groove, flash and burr, and runner of die casting parts.
Note: Usually mechanical punching, grinding machine, grinding wheel grinder or polishing machine, or file for trimming, but do not cause material shortage and deformation.
4 General Requirements
4.1 Safety facilities for new construction, renovation, and expansion projects should be designed, constructed, commissioned, and used simultaneously with the main project. Investment in safety facilities should be included in the construction project budget.
4.2 Enterprises should organize and implement safety education and training for employees at all levels. Key responsible persons and safety management personnel should pass safety knowledge and management capability assessments on a regular basis. Special operations personnel, special equipment operators, and special equipment safety management personnel should undergo specialized safety technical training and pass assessments, hold certifications, and undergo regular review.
4.3 The application of new processes, technologies, equipment, and materials should undergo safety condition demonstration, understand and master their safety and technical
characteristics, implement safety protection measures, and provide specialized safety education and training to employees to ensure they master the appropriate operating and emergency response skills before they can be put into use and operation.
4.4 Enterprises should establish a dual prevention mechanism for safety risk classification and control, as well as hazard investigation and management. Safety risk identification should be conducted based on the company's production process characteristics and risk types, and safety inspections should be conducted through a variety of methods, including comprehensive
inspections, special inspections, seasonal inspections, and holiday inspections.
4.5 Enterprises should identify major hazards in accordance with GB18218, monitor them, register them, and conduct regular inspections and assessments. They should also develop emergency response plans, inform employees and other relevant personnel of the emergency measures to be taken in the event of an emergency, and file all major hazards and related safety and emergency measures in accordance with the law.
4.6 Enterprises should establish a system for the use, maintenance, and overhaul of equipment, and develop a regular and routine inspection (and repair) plan. Equipment and facilities should be inspected and repaired regularly according to the plan. 4.7 Enterprises should establish emergency response plans for incidents such as magnesium alloy high-temperature molten metal leaks, dust explosions, and gas leaks, and equip them with emergency equipment and supplies,
