Recently, Haadian Group successfully captured the 9FA heavy gas turbine core processing technology - rotor superalloy wheel broaching technology, to become internationally capable of manufacturing heavy gas turbine one of the enterprises. It is understood that heavy-duty gas turbine manufacturing technology as the world's most advanced and complex mechanical manufacturing technology, has become an important indicator of a company's manufacturing capabilities. Haadian Group has introduced the domestic research on 9FA heavy-duty gas turbines since its introduction in 2003 by the United States GE Company's F-class combined cycle unit technology. The core issue is the rotor roulette wheel broaching technology. To this end, HAL Group purchased the only German HOFFMANN high-speed CNC broaching machine that was suitable for 9FA heavy-duty gas turbine rotor disk broaching in 2008. In January this year, the machine has the conditions of the products roulette broaching machined turbo-level wheel geometry complete with the drawings. In addition, the compressor six-level roulette broaching was also carried out. All the profiles passed the inspection all at once, and the position accuracy was also all qualified. The smooth acquisition of this technology marks that Haadian Group has successfully entered the ranks of advanced enterprises in the field of gas turbine manufacturing in the world and ended its history that China can not independently manufacture heavy gas turbines.
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