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successful test of the stator and rotor complex die

August 11, 2021
Recently, China North Locomotive Group Yongji Motor Factory successfully introduced the motor stator and rotor complex die for the railway technology to introduce the long-term passenger shares and the Alstom 200-km EMU.

YJ87A motor stator and rotor complex die is the iconic mold of Changke and Alstom projects. This set of molds has high precision and quality requirements, and the complexity of the shape and structure is not only the first time in the history of mold manufacturing in Yongji, but even the leaders in the domestic mold industry are not afraid to accept it. The leaders and technicians of Yongji Factory Tooling Factory were not intimidated by the difficulties. Without any experience, they set up a special technical team to combine a lot of production experience to find a large number of technical materials at home and abroad. After more than a month of staying up all night, the first assembly test in May 2006, all sizes meet the requirements, but the product burrs are out of tolerance.

"To make a good product." In the face of the problem, they launched a new round of research. After the technical analysis meeting, from the raw materials, stability and other reasons to find the reasons, after seven large-scale improvements, and finally created a "excellent and excellent education" for the technology introduction project. "Premium mother."

The delivery of this set of molds not only opened a new page in the manufacture of North Wing Yongji factory molds, but also created favorable conditions for the introduction of technology into localization.


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