Heavy-Duty Shaft Forgings with Normalizing for Optimal Performance

Jiangsu Weirun Forging Co., Ltd.
Established in 2001, Jiangsu Weirun Forging Co., Ltd. epitomizes the zenith of engineering excellence and synergy-driven innovation. A prestigious collaboration between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., Weirun emerges as a beacon of market innovation in China. Renowned for our unparalleled expertise in alloy steel smelting, we offer an impressive array of meticulously crafted forged products. Our founding moment sparked an unwavering journey toward revolutionary discoveries and an enduring pledge to outstanding quality, thereby securing our revered status as pioneers in the industry.
Our enterprise stands as a paragon of quality excellence, engaging in an extraordinary spectrum of endeavors, including alloy steel smelting, electroslag remelting, forging, and mold design. We've meticulously constructed a holistic industrial chain that seamlessly weaves together every facet, from material recycling to the precision of mold machining. Our steadfast dedication to excellence resonates globally, providing both domestic and international markets with products that adhere to exemplary quality standards.
Spanning a vast 60,000 square meters, our cutting-edge manufacturing facility boasts the latest technological advancements: featuring three 1-ton, along with larger 3-ton and 10-ton electroslag furnaces; two 2-ton, one 1-ton, and one 0.75-ton air hammers. Our advanced infrastructure includes 5-ton and 8-ton electro-hydraulic hammer production lines, sophisticated mechanical processing and heat treatment equipment, high-precision spectrometers, and an extensive range of physical and chemical testing apparatus. With fixed assets totaling an impressive 153 million yuan and an industrial output value soaring to 300 million yuan, we proudly employ over 200 dedicated professionals, including 20 top-tier technical experts. Our outstanding accomplishments position us among the top fifty enterprises in Danyang City in terms of annual sales and tax contributions.
Driven by our passion for innovation and growth, we have relentlessly concentrated on attracting a diverse range of technical expertise and forging strategic alliances with leading domestic universities and research entities. This visionary strategy has led to significant technological advancements, earning us 5 nationally recognized invention patents and 3 utility model patents, thereby cementing our esteemed status as leaders in the industry.
With an impressive annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity reaching 15,000 tons, our products are indispensable across a wide array of sectors, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by the principle of 'pursuing excellence and building a world brand,' we integrate seamlessly into the global market through a robust international brand strategy. Our unwavering commitment to international standards is validated by certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a devoted supplier of forged products, Weirun remains committed to upholding the principles of professionalism, constantly enhancing our capabilities to deliver unmatched, high-quality services to our valued clients.

• What is the difference between forging and casting?

  Forging: It is the process of transforming a solid from one shape to another. Casting: It is the process of transforming a shapeless liquid metal into a solid with a shape. The so-called casting is the process of casting molten metal into a model to obtain a casting. The casting profession focuses on the metal melting process and the control of processes during the casting process. Forging is a plastic forming process in the solid state, which can be divided into hot processing and cold processing. Forgings include extrusion, drawing, roughening, punching, and so on. Casting is a solid liquid solid process, while forging is a solid to solid process where a solid can change its shape into another shape at high temperatures. There are still differences in the shape process and process of the two.

• How to choose high-quality forgings?

  In the quality inspection of forgings, there are mainly external observation methods and internal inspection methods. The appearance method, as the name suggests, is to observe the appearance of the product, such as the shape, geometric dimensions, surface condition, etc. of the forging, in order to understand whether it meets the standards and whether there are external defects. Specifically, it is to check whether the external dimensions of the forging meet the specifications and whether there are defects on the surface, such as cracks, wrinkles, bubbles, indentations, pits, impurities, scratches, etc. on the surface of the forging. Internal testing mainly involves analyzing the chemical composition, macroscopic and microscopic structures, and mechanical properties of forgings. This inspection process requires the use of specialized instruments for high magnification inspection, with the aim of checking for any phenomena such as fractures and shrinkage within the forging, as well as defects such as dendrites and white spots, disordered flow lines, and throughflow. It also includes the tensile strength, ductility, hardness, plasticity, and heat resistance temperature of the forging.

• What are the characteristics of the forging process for blank forgings?

  The forging process of circular forgings mainly consists of the following processes: pier roughening, elongation, punching, and expanding. The difference between free forging and ring rolling processes is mainly in the process of expanding holes. In the production of ring forgings, free forging is usually used to expand the hole with a horse screw, while ring rolling is mainly used to expand the hole with rolling.