GB/T 34524-2017 in English
SUPERSEDEDWind turbines-Shaft
- Issued on:2017-10-14
- Implemented on:2018-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
《GB/T 34524-2017风力发电机组 主轴》由TC50（全国风力发电标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
In-depth interpretation of GB/T 34524—2017 Wind Turbine Main Shaft Standard
1. Background and significance of the standard
GB/T 34524—2017 Wind Turbine Main Shaft is an important standard for China's wind power industry, which aims to standardize the design, manufacturing and inspection requirements of the main shaft to ensure its safety and reliability in various environments. This standard was formulated by the National Technical Committee for Standardization of Wind Machinery and is applicable to the forged main shaft of horizontal axis wind turbines.
2. Comparison of standard frameworks
| Standard dimensions | Scope | Technical requirements | Inspection methods | Implementation suggestions |
|---|---|---|---|---|
| Material selection | Alloy steels such as 42CrMo4 and 34CrNiMo6 | Chemical composition control, mechanical properties testing | Smelting analysis, finished product analysis | Prioritize low-temperature materials |
| Forging process | Forging molding | Forging ratio ≥ 4, continuous fiber forging | Ultrasonic flaw detection, magnetic particle flaw detection | Optimize forging parameters |
| Heat treatment process | Quenching and tempering treatment | Tempering temperature ≥ 580°C | Tensile test, impact test | Establish heat treatment curve monitoring |
| Surface treatment | Sandblasting and coating | Meet ISO12944-4 requirements | Scratch test, adhesion test | Regularly maintain surface coating |
3. Implementation Suggestions
Case Analysis:
When purchasing the main shaft, a wind power plant strictly selected the low-temperature unit main shaft made of 34CrNiMo6 in accordance with GB/T 34524-2017 standard. During the manufacturing process, continuous fiber forging technology was used, and tempering heat treatment was performed to ensure the mechanical properties of the main shaft in a -40°C environment. At the same time, no internal defects were found through ultrasonic flaw detection and magnetic particle flaw detection, ensuring the reliability of the product.
4. Summary
GB/T 34524—2017 standard provides comprehensive technical guidance for the manufacture and inspection of wind turbine main shafts. By strictly controlling material selection, manufacturing processes and testing methods, the quality and reliability of the main shaft can be effectively improved to ensure the safe operation of wind power generation equipment.
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