Hengjiu Group’s subsidiary Huangshan Hengjiu has recently achieved another milestone in chain manufacturing technology with the successful authorization of a new invention patent titled “A Carbonitriding Treatment Process for Wear-Resistant Chain Production.”
Recognized by the China National Intellectual Property Administration (CNIPA), this patent represents a further advancement in Hengjiu’s expertise in chain surface treatment technologies and highlights the company’s continuous efforts to improve product durability, reliability, and performance in demanding industrial applications.
For power transmission and conveyor systems, chain performance is closely related to equipment efficiency and operational stability. In industries such as construction machinery, agricultural equipment, mining systems, and heavy-duty conveying applications, chains are often required to operate under challenging conditions involving high loads, frequent impacts, dust contamination, and continuous cycling.
Under these environments, insufficient wear resistance can lead to accelerated component degradation, unexpected downtime, and increased maintenance requirements. Therefore, improving surface strength while maintaining internal toughness has always been a key focus in advanced chain manufacturing.
The newly patented carbonitriding treatment process focuses on optimizing the surface treatment stage during chain production. By improving the structure of the hardened layer and balancing surface hardness with core toughness, the technology helps enhance the chain’s resistance to wear, friction, and fatigue under heavy-duty operating conditions.
Compared with conventional treatment methods, this process provides a more balanced performance between surface durability and structural reliability, helping reduce failure risks caused by repeated loading, impact forces, and long-term operation.
Although chains are often considered basic mechanical components, their reliability directly affects the overall performance of industrial equipment. A stable production line or machine operation often depends on the consistent performance of every critical component.
The development of this patented technology reflects Huangshan Hengjiu’s long-term investment in material engineering, manufacturing process optimization, and product reliability improvement. Rather than focusing only on standard production, Hengjiu continues to explore advanced manufacturing solutions that enable more predictable service life and higher operational reliability for customers worldwide.
As industrial equipment continues to demand longer service intervals and improved efficiency, chain products with enhanced wear resistance, fatigue strength, and durability are becoming increasingly important.
This new invention patent is not only a recognition of Hengjiu’s technical capabilities but also another step toward providing customers with more reliable chain solutions for challenging operating environments.