HGC rebuild is up and running at Yingkou

—— CISDI’s electro-mechanical-hydraulic expertise successfully applied

A new hydraulic gap control system is operating ahead of schedule at Minmetals’ Yingkou Plate Mill.

The new finishing mill system is performing well and manufacturing high quality plate.

CISDI’s electro-mechanical-hydraulic core equipment was applied to the control system and is enabling operation data to far exceed the specified guarantees. This lays a solid foundation for further improvements in the mill’s production quality and yield.

Yingkou’s original HGC system had a slow response, caused a large deviation in final product thickness and produced out-of-tolerance head-tail ends.

CISDI proposed a total solution and rebuild plan through hydraulic servo simulation and testing technology, and took into account the reconstruction cycle and cost.

Critical to the quality of medium plate production, HGC is a high-precision servo closed-loop control system, posing rigorous requirements on manufacture and integration.

It took CISDI two months to complete the design, simulation, manufacture and integration test of the new HGC system.

The integration test was implemented on CISDI’s new-generation testing platform for step, hysteresis loop, bandwidth and other dynamic data. Results verified the system’s capacity and equipment manufacture quality in a comprehensive and quantified way.

It took only ten days to remove the old pipeline and install and commission its new replacement.

“Thanks to the concerted efforts of multi-disciplinary engineers, our new HGC has been commissioned successfully ahead of schedule and has resulted in high manufacturing quality and system performance,” said a spokesperson for Yingkou.

The HGC system, under integration test

The HGC system, now operating at Yingkou Medium Plate Mill