GB/T 41823-2022 in English
VALIDQuality management specification of welding materials for items important to safety in nuclear power plants
- Issued on:2022-10-12
- Implemented on:2023-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
《GB/T 41823-2022核电厂安全重要物项用焊接材料质量管理规范》由TC58（全国核能标准化技术委员会）归口，TC58SC3（全国核能标准化技术委员会反应堆技术分会）执行，主管部门为国家标准化管理委员会。
Introduction
Background of Standard Specification Formulation
This specification replaces the original industry technical guidelines and establishes a five-level quality control model: starting from material selection demonstration, through assessment testing, production process traceability, two-way acceptance system and usage scenario monitoring. In particular, the special requirements for welding materials of third-generation nuclear power units such as AP1000 and Hualong One have been strengthened, and the requirements for radiation resistance verification have been strengthened.
Analysis of term definitions
| Terms | Key points of definition | Implementation impact |
|---|---|---|
| Important safety items | Key components affecting radiation protection | Triggering SIL2 quality control |
| Quality certification documents | Data package containing more than 200 parameters | Mandatory blockchain storage |
Quality management system architecture
Standard-based Process control system includes:
- Manufacturing side: Recipe management system (approval by separation of powers)
- Purchasing end: dual-source verification mechanism (cross-verification of certification materials)
- User end: three-level attenuation protection (dynamic monitoring of temperature and humidity)
Analysis of key technical points
Material assessment requirements
| Project | Manufacturer assessment | User assessment |
|---|---|---|
| Test temperature | -30℃~+350℃ gradient | Extreme value of working condition simulation |
| Detection frequency | 1 time/100kg | First piece must be inspected + 5% random inspection |
Procurement control requirements
Risk procurement management system stipulates that secondary suppliers must implement full-project DPU testing, and the number of charged particles in the flux is included in the key assessment indicators.
Engineering Application Guide
| Phase | Core Elements | Tolerance Standard |
|---|---|---|
| Storage Management | Temperature Fluctuation ≤±2℃ | 4.3 Chapter Mandatory Clauses |
| Failure Disposal | 24-hour Root Cause Analysis | 2 times of over-limit shutdown |
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