On December 2, the reporter learned from the Ledu Industrial Park of Haidong City that Qinghai Middle Titanium Blue Forging Equipment Manufacturing Co., LTD. (hereinafter referred to as “Middle Titanium Blue Forging”) in the Ledu Industrial Park of Haidong Industrial Park continued to promote technological innovation and successfully produced the country’s first new high-temperature alloy large diameter thin-wall pipe for 650℃ grade power stations. This breakthrough marks China’s major progress in the field of high-temperature alloy pipes for power stations, which not only fills the relevant technical gaps in China, but also has far-reaching significance for the high-end equipment manufacturing of China’s power industry.
China Titanium Blue Forging successfully overcome the problems of narrow hot processing window of superalloy, difficult structure and property control, complex extrusion process design, etc., successfully produced the first new superalloy (GH2070P) large-diameter thin-wall pipe for 650℃ grade power station in China on the 680MN extrusion machine, with an outer diameter of 610mm, wall thickness of 30mm, and length of more than 6.4m. It is reported that during the trial production process, titanium blue forging gives full play to the technical advantages of the industry, from the precise selection and ratio of raw materials, to the optimization and innovation of the forging process, to the fine control of heat treatment and subsequent processing processes, each link has undergone rigorous research and development and repeated trials. In the meantime, advanced forging equipment and precision testing instruments are used to ensure that the dimensional accuracy of the pipe, internal organizational performance and other indicators are in line with high standards.
“High combination 2070p superalloy pipe is a new type of power station pipe, this material due to its superb deformation resistance, making the molding difficult, the thick wall pipe used by each power station before, resulting in very high power station operation costs.” Through technological optimization and innovation, we have successfully produced the first ultra-thin-wall high-tech pipeline in China, which can greatly reduce the cost of power stations and has certain significance for promoting the realization of the dual-carbon goal in China.” Du Hongqiang, vice general manager of China Titanium blue forging, said.
It is reported that in recent years, China Titanium blue forging has a complete production and manufacturing system such as preforming, forging, hot extrusion/die forging, heat treatment, processing, testing, etc. The key equipment 680MN/260MN unit is the world’s first dual-function heavy equipment that integrates hot extrusion and die forging independently designed and built in China, and the hot extrusion capacity ranks first in the world.