Shanxi Jianing Forging regularly stocks 20#, A105, 45#, and other standard carbon and high-quality carbon steel raw materials. The station has complete real-world cases of carbon steel flanges, shafts, and ring forgings. Carbon steel forgings offer high cost performance and are suitable for manufacturing general industrial equipment.
A transmission machinery factory in Guiyang, Guizhou, set high requirements for carbon steel forgings when producing large transmission equipment. The factory specializes in manufacturing heavy-duty gearboxes and drive shaft components, requiring forgings with good internal microstructure density and mechanical properties to support continuous operation under harsh conditions. To meet the delivery pace of their bulk orders, forging supply must balance quality consistency and timeliness.
The plant has long faced several key issues: First, some carbon steel forgings supplied by suppliers have internal defects such as central looseness and segregation, leading to cracks during subsequent processing and low yield rates; Second, unstable control of forging dimensional tolerances, resulting in over-tolerance of the blank, increasing machining time and tool wear; Third, when switching between multi-variety and small-batch orders, delivery cycles fluctuate greatly, affecting the complete machine assembly plan.
To address these pain points, Jianing Forging has customized a specialized process plan for carbon steel forgings. In the raw material stage, carefully selected high-quality carbon structural steel that meets national standards and undergoes strict factory re-inspection to help stabilize chemical composition. The forging stage uses multi-directional forging technology, combined with optimized heating and deformation parameters, effectively eliminating microstructural defects in the cast, refining grains, and improving the overall density and isotropy of the forging. During the heat treatment stage, precise temperature control and isothermal cooling are implemented to ensure uniform hardness and stable overall mechanical properties. The inspection stage is equipped with ultrasonic flaw detection and full dimensional inspection, helping each product meet the drawings and standard requirements. At the same time, by optimizing production cycles and matching inventory, the delivery cycle for conventional customized products has been shortened to under 15 working days, effectively supporting customers' production scheduling needs.
