Shanxi Jianing Forging has collected real-world engineering cases of long shafts, short shafts, drive shafts, and marine nuclear power shaft forgings, fully showcasing the forging process of shaft forgings, finished product precision, and practical application scenarios for heavy equipment.
At a heavy building materials factory in Wuhai, Inner Mongolia, the shaft forgings required for key transmission parts have long faced challenges of high load and high wear during production. The shaft forgings supplied by the factory's original suppliers frequently experienced fatigue fracture issues during their service life, seriously affecting continuous production line operation and keeping maintenance costs high. To support the normal operation of the equipment, the plant sought shaft forging solutions that could provide long service life and reliable performance.
The shaft forgings of this heavy plant must withstand continuous heavy load impacts and alternating stresses. The original products had the following prominent issues: First, insufficient matching of material strength and toughness, leading to early fracture; Second, there is a large deviation in machining accuracy, resulting in additional vibration after assembly; Third, the heat treatment process is unstable, with uneven surface hardness, accelerating wear. These issues directly lead to an increased frequency of unplanned equipment downtime, with a single replacement taking several days and causing significant losses to production plans.
To address these pain points, a certain company provided a customized shaft forging solution for the customer. By optimizing alloy composition and forging processes, the fatigue resistance of materials is enhanced; Using multi-pass temperature-controlled forging technology, the grain structure is refined to enhance overall strength and toughness. Combined with good heat treatment processes, it helps ensure a reasonable hardness gradient between the surface layer and core of shaft forgings, improving wear resistance. At the same time, high-precision CNC equipment in the finishing process helps with dimensional tolerances and effectively reduces assembly deviations. The ultimately delivered shaft forgings operated continuously at the customer's site for over 12 months without any abnormalities, reducing maintenance frequency and helping the customer achieve efficient and stable equipment operation.
