The Shanxi Jianing Forging Forging Train Wheel, Mine Overhead Wheel, and Heavy-Duty Overhead Wheel Forging Project features mature forging technology for high-strength wheels, excellent load-bearing performance, and suitable for heavy-duty conditions in rail transit and mines.
A metallurgical forklift factory in Zhumadian, Henan, has long been engaged in material handling for the metallurgical industry. Its forklift wheels are frequently exposed to high-temperature, high-load environments, which imposes strict requirements on the strength and durability of forgings. A certain company (hereinafter referred to as "Jianing Forging") provides customized wheel forging solutions tailored to the actual working conditions of the factory, helping customers improve equipment operational stability.
The wheel forgings originally used by the forklift factory had the following prominent issues:
1. High-temperature deformation: The high ambient temperature in the metallurgical workshop makes ordinary forgings prone to deformation under sustained high temperatures, affecting forklift driving accuracy.
2. Excessive Wear: Frequent start-stop and heavy-duty operations cause wheel tread wear quickly, requiring replacement every three months on average, resulting in high maintenance costs.
3. Uneven internal structure: Traditional forging processes cannot facilitate continuous metal flow lines, making microcracks at the rim root prone to safety hazards.
4. Poor dimensional consistency: The fit clearance varies greatly between different batches, requiring repeated repairs during assembly, which affects production efficiency.
To address these pain points, Jianing Forging offers targeted solutions from three aspects: materials, craftsmanship, and quality control:
Material optimization: Heat-resistant alloy steel (such as 42CrMo) is selected, and high-temperature creep resistance is improved through fine-tuning of the composition, helping to maintain deformation even after long-term use below 300°C.
Process upgrade: Using multi-directional die forging technology, metal streamlines are fully distributed along the wheel contour, eliminating internal micropores and segregation, and improving rim root strength by about 30%.
Fine machining: Introduced CNC grinding ring and heat treatment automated production lines, keeping dimensional tolerances within ±0.2mm, ensuring good interchangeability of batch products; At the same time, through surface nitriding treatment, the tread hardness reaches HRC 50-55, extending its service life to over 12 months.
Full-process inspection: Ultrasonic flaw detection and hardness testing are performed individually to ensure that forgings leave the factory without internal defects. We cooperate with customers to complete a 48-hour full-load trial run test after loading, achieving zero failures.
