T/ZJL 0015-2023 Wind turbine unit yaw gear ring tooth surface induction hardening process technical specifications

Scope

Scope: This document specifies the materials and basic requirements, process, and operational requirements for the induction hardening process of the yaw ring gear tooth surface of wind turbines, and describes the corresponding verification methods. This document is applicable to the specification of the induction hardening process of the yaw ring gear tooth surface of wind turbines. Main technical content: Materials and basic requirements: The standard materials and basic requirements for the products in this standard are explained. Induction hardening equipment: Regarding the induction hardening equipment needed for the product, requirements are set for its induction heating power supply, mechanical devices for induction hardening, and quenching cooling devices and media. The main requirements are as follows: 1) Induction heating power supply: For the yaw ring gear of wind turbines, the induction heating power supply should use IGBT with a power range of 80Kw-150Kw, and the control accuracy should meet the corresponding requirements. 2) Mechanical devices for induction hardening: It is stipulated that the induction hardening mechanical device should be a mobile quenching machine, and requirements are set for its mechanical accuracy. 3) Quenching media: Water-soluble quenching agents are used as quenching media. The quenching cooling tank should have sufficient capacity and be equipped with appropriate quenching media circulation devices and temperature regulation devices. When spraying quenching cooling, the cooling medium and flow rate should be adjustable and meet the corresponding requirements. Induction hardening process and operational requirements

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