Fine Finish Forged Parts with Cylinder Shape for Quality Assurance

Jiangsu Weirun Forging Co., Ltd.
Founded in 2001, Jiangsu Weirun Forging Co., Ltd. represents the pinnacle of engineering excellence and innovative collaboration, resulting from the synergy between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. Established as a beacon of market leadership and expertise in China, Weirun excels with its unparalleled skill in alloy steel smelting and its expansive range of meticulously crafted forged products. Our foundation heralded a relentless quest for cutting-edge innovation and an unwavering dedication to superior quality, which has earned us an esteemed reputation as pioneering leaders in the industry.
Our company is the embodiment of unparalleled quality excellence, undertaking a remarkable array of initiatives that include alloy steel smelting, electroslag remelting, forging, and mold design. We have meticulously developed a comprehensive industrial chain that seamlessly integrates every aspect, from material recycling to precision mold machining. Our steadfast commitment to excellence resonates across borders, serving both domestic and international markets with the highest quality standards.
Spanning an impressive 60,000 square meters, our cutting-edge manufacturing facility is outfitted with the latest technological advancements. It features 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 sophisticated facilities also include 5-ton and 8-ton electro-hydraulic hammer production lines, advanced mechanical processing and heat treatment equipment, high-precision spectrometers, and a comprehensive range of physical and chemical testing apparatus. With fixed assets reaching a substantial 153 million yuan, and an industrial output value soaring to 300 million yuan, we proudly employ a dedicated team of over 200 skilled professionals, including 20 top technical experts. Our outstanding achievements place us among the top fifty enterprises in Danyang City for annual sales and tax contributions.
Driven by our fervor for innovation and expansion, we have meticulously focused on attracting a wide array of technical expertise and forging strategic alliances with leading domestic universities and research bodies. This visionary approach has led to significant technological advances, securing us 5 nationally recognized invention patents and 3 utility model patents, thereby cementing our leading position as industry trailblazers.
With a formidable annual production capacity that exceeds 30,000 tons of steel ingots and a forging capacity reaching 15,000 tons, our products fulfill a vital role across a vast array of sectors, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Adhering to the principle of 'pursuing excellence and building a world brand,' we seamlessly integrate into the global market through a robust international brand strategy. Our unwavering commitment to international standards is underscored by certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a devoted provider of forged products, Weirun remains committed to the principles of professionalism, continually enhancing our capabilities to deliver unparalleled, high-quality services to our esteemed clientele.

• 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.