In contrast, Henan Forging Emperor Industry has always adhered to the production philosophy of high standards and strict requirements. Relying on its complete equipment system and mature technological experience, it has produced intermediate shaft forgings with stable performance and reliable quality, which have won wide recognition in the industry. Its forging process is scientific and rigorous, with the entire process controllable and traceable, which is specifically reflected in the following key links:
1. Select high-quality materials and strictly control the source
Henan Forging Emperor Industry strictly screens its cooperative steel mills to ensure that the steel billets used have clear material certificates and stable chemical compositions. Each batch of raw materials undergoes spectral analysis and ultrasonic flaw detection to eliminate original defects such as slag inclusion, shrinkage cavities and cracks, ensuring the intrinsic quality of the forgings from the source.
2. Uniform heating and precise temperature control
By adopting advanced medium-frequency induction heating and gas furnace combined temperature control technology, the steel billet is heated evenly and the temperature rise is stable. The heating temperature and holding time are precisely controlled to avoid overheating and overburning, ensuring that the metal is in the best plastic state and laying a foundation for high-quality forming.
3. Multi-directional free forging, dense structure
Relying on large-scale hydraulic free forging presses, plastic deformation is repeatedly applied through processes such as upsetting, drawing, and multi-directional downward pressing to fully compact the internal voids of the metal, refine the grains, optimize the distribution of metal flow lines, and significantly enhance the density, strength, and fatigue resistance of the forgings.
4. Scientific heat treatment ensures balanced performance
According to the technical requirements of the product, a complete heat treatment process including normalizing and quenching and tempering is implemented. The automatic temperature control system is adopted to ensure that the entire process of heating, holding and cooling is precisely executed, enabling the forging to obtain a uniform and stable metallographic structure and achieve a good match between high strength and high toughness.
5. Comprehensive testing and closed-loop management
Each intermediate shaft forging undergoes multiple quality inspection methods such as dimensional inspection, magnetic particle flaw detection, ultrasonic testing, hardness testing and mechanical property testing before leaving the factory to ensure there are no surface or internal defects, performance meets standards, and data is traceable, truly achieving worry-free quality. It is precisely this entire set of rigorous, professional and reliable forging processes that has enabled Shanxi Yongxinsheng Heavy Industry to stand out in the field of intermediate shaft forgings. Compared with ordinary manufacturers in the market that have unstable processes and loose quality control, Yongxinsheng, with its outstanding technical strength and unwavering pursuit of quality, has become a reliable partner for high-end equipment manufacturers.