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.
In the field of metallurgical equipment manufacturing, the quality of shaft forgings directly affects the stability of equipment operation and service life. Below is a case study of shaft forgings cooperation at a metallurgical equipment factory in Anyang, Henan, showcasing Jianing Forging's technical capabilities in solving customers' practical problems.
This client is a company specializing in the production of complete metallurgical machines, whose drive shafts in core equipment must withstand high temperatures, heavy loads, and frequent start-stop conditions. Previously, the customer had long been troubled by early fatigue fracture issues in shaft forgings, resulting in high equipment downtime maintenance costs and frequent production interruptions. After extensive investigation, the customer chose to cooperate with Jianing Forging to seek a more reliable shaft forging solution.
The customer's original shaft forgings mainly faced three pain points: first, insufficient material purity, with non-metallic inclusions easily becoming sources of cracks; Second, the distribution of forging flow lines is unreasonable, causing early cracking in stress concentration areas; Third, the stability of the heat treatment process is poor, with an imbalance between hardness and toughness, making it difficult to meet both wear resistance and impact resistance requirements. These issues not only affect the lifespan of individual products but also restrict the continuous operation efficiency of the entire production line.
To address these pain points, Jianing Forging offers targeted solutions from three levels. First, vacuum degassing refining technology is used to improve the cleanliness of molten steel, effectively controlling the size and distribution of inclusions; Second, multi-directional forging technology optimizes the metal flow line direction, aligning the forging's force direction with the flow line and reducing stress concentration risk; Finally, a segmented controlled cooling and tempering process is applied to accurately adjust the bainite-to-martensite ratio, achieving a good balance of hardness, strength, and toughness. Finished shaft forgings have been tested by customers for installation and testing, showing that the service life of the original supplier's products is over 40% longer than the original supplier's products, and there has been no further premature breakage.
