Shanxi Jianing Forging includes real-life engineering cases of tube sheets, flanges, and various round disc forgings. The finished products of carbon steel and stainless steel disc forgings are clearly photographed, directly reflecting the processing precision of the forgings and the effectiveness of pipeline compatibility.
In the field of hydraulic equipment manufacturing, disc forgings, as key transmission and support components, have quality that directly affects the stability and service life of equipment. A hydraulic equipment factory in Jincheng, Shanxi, set higher requirements for disc forgings when upgrading its production line. With mature forging techniques and strict quality control, Jianing Forging provided customized solutions to help the plant achieve efficient production.
A hydraulic equipment factory is located in Jincheng, Shanxi, mainly engaged in the production of core components of hydraulic systems. Its newly developed hydraulic cylinders require a batch of disc forgings with relatively accurate dimensions and dense microstructure to handle high-pressure, high-frequency operating conditions. After extensive selection, the factory ultimately chose Jianing Forging as the forging supplier. Both parties conducted multiple rounds of technical coordination focusing on product specifications, performance indicators, and delivery times.
The factory's original disc forgings mainly relied on traditional open-die forging processes, which had the following prominent issues:
- Insufficient dimensional stability: The free forging has large machining allowance, resulting in time-consuming subsequent machining and obvious material waste.
- Internal quality fluctuations: Uneven grain size of forgings, looseness or segregation in some areas, affecting the sealing performance and fatigue life of the hydraulic cylinder.
- Uncontrollable delivery times: Multi-process outsourcing leads to long production cycles, making it difficult to match new production line startup plans.
To address these pain points, Jianing Forging has systematically optimized everything from mold design and forging processes to heat treatment:
- Adopts a closed die forging scheme, keeping the dimensional accuracy of the forging within 0.5mm, reducing subsequent turning allowance.
- Through multi-directional forging and temperature-controlled cooling technology, the grain structure is refined to ensure uniform overall hardness and no internal defects.
- Establish dedicated production schedules for full-process monitoring from raw material arrival to finished product shipment, reducing delivery cycles to 15 working days.
The delivered disc forgings were tested by a third party, and both mechanical properties and ultrasonic flaw detection met customer standards, helping the hydraulic equipment factory complete production line commissioning on schedule.
