Anhui KORBOR Machinery Co., Ltd.,, founded previously known as Ruian KORBOR Camshaft Manufacturing Co., Ltd. in 1999, was initially located in the automobile and motorcycle parts industry zone of Wenzhou, Zhejiang. It moved to Fuzhou, Fujian in 2005, and moved again to Anqing, Anhui in 2023, and was renamed Anhui KORBOR. Anhui KORBOR Machinery Co., Ltd., is China Wholesale VOLGA Car Camshaft Suppliers And VOLGA Car Camshaft Company. It is now located in Susong Economic Development Zone, covering an area of 28,000 square meters, with a plant area of 22,000 square meters, a registered capital of 11 million yuan (about US Dollar 1.4 million), and a total investment of over 100 million yuan. It is one of the top camshaft manufacturers in the country.
The camshaft is a key component in engine. We select high-performance alloys and use heat treatment processes, such as tempering, carburizing and quenching to significantly enhance the strength, hardness and wear resistance of the camshaft, ensuring performance in working environments.
With 25 years of innovation and experience, camshaft is our only focus. Anhui KORBOR Machinery Co., Ltd., is China Wholesale VOLGA Car Camshaft Company. We have efficient production lines and strict quality management systems, achieving high-precision mass production and ensuring that every batch product has the same quality. We follow the IATF16949:2016 standard, maintain the "zero defect" production concept, implement multi-level and all-round quality control for every link in the production process, and win the favor of the global market with high cost performance and stable quality. With customers all over the world, we have established the strategic cooperation with many brands.
Our team is born for higher standards, and continuously iterating, so that every process contains innovative power. At present, our product covers more than 800 automotive and 600 motorcycle camshaft models. KORBOR provides you with mature technology and diversified solutions to help customers achieve greater success.
Meanwhile, we are committed to environmental protection, ensuring a healthy and safe working environment for employees by reducing waste generation, and requiring all partners in the supply chain to comply with strict environmental protection and labor standards. Regularly audit suppliers to promote the implementation of sustainable production methods throughout the entire chain.
From blank casting to finished products, KORBOR provide 1-stop service for each customer with reliable quality and punctual delivery time. Every year, we deliver more than 2.3 million sets of products to global customers and serve the market with professional capabilities. KORBOR is not only your trusted supplier, but also your ideal partner in the field of automotive and motorcycle engine camshafts. Let us work together to create quality with exquisite craftsmanship.
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Heat treatment process of VOLGA automotive camshaft
1. Carburizing treatment
Carburizing is the first step in the heat treatment of camshafts. It aims to increase the carbon content on the surface by infiltrating carbon atoms into the surface of the workpiece at high temperature, thereby improving hardness and wear resistance. KORBOR uses high-quality low-carbon alloy steel as the substrate, and uses a precisely controlled carburizing furnace to ensure that carbon atoms penetrate evenly to the predetermined depth, while avoiding excessive changes in the internal structure, laying a solid foundation for subsequent quenching. During the carburizing process, KORBOR uses an advanced computer control system to monitor the temperature, atmosphere and carbon potential in the furnace in real time to ensure the uniformity and depth consistency of the carburized layer, which is the prerequisite for high-precision camshaft manufacturing.
2. Quenching treatment
Quenching is a key step to quickly cool the carburized camshaft so that its surface obtains a high-hardness martensitic structure. KORBOR uses advanced oil quenching or water quenching technology to accurately set the cooling rate and medium according to material properties and design requirements to achieve an ideal balance between hardness and toughness. During the quenching process, KORBOR pays special attention to cooling uniformity. By optimizing the flow path of the quenching medium and temperature control, it effectively reduces thermal stress, avoids quenching cracks, and ensures the uniformity of the overall performance of the camshaft.
3. Tempering treatment
Tempering is to eliminate quenching stress, stabilize the organization, and improve the toughness and fatigue resistance of the camshaft. KORBOR selects the appropriate tempering temperature and holding time according to the specific application requirements of the camshaft, and achieves the best match between hardness and toughness through a precisely controlled tempering furnace. The tempering process not only helps to release residual stress, but also further refines the grains, improves the comprehensive mechanical properties of the material, and provides a guarantee for the long-term stable operation of the camshaft.
Control deformation during heat treatment to ensure dimensional stability and accuracy
1. Preheating and temperature equalization
Before formal carburizing and quenching, KORBOR will perform preheating treatment to make the internal temperature of the camshaft evenly distributed and reduce the thermal stress caused by the temperature gradient. This is an important measure to prevent deformation. The selection of preheating temperature needs to comprehensively consider the material properties and subsequent process requirements to ensure that the deformation tendency during heat treatment is effectively reduced without affecting the material properties.
2. Precise temperature and time control
During the entire heat treatment process, KORBOR uses a high-precision temperature control system and intelligent sensors to monitor and precisely control the temperature in the furnace in real time, ensuring that the temperature and time parameters of each heat treatment stage strictly meet the process requirements. This precise control not only helps to obtain the ideal microstructure, but also effectively reduces the dimensional changes caused by temperature fluctuations.
3. Selection and optimization of quenching medium
The type, temperature and flow rate of the quenching medium have a direct impact on the deformation of the camshaft. Through a large number of experiments and data analysis, KORBOR customizes the optimal quenching medium solution for camshafts of different materials to ensure that the cooling rate is moderate and uniform, which can not only obtain the required hardness but also minimize deformation. In addition, KORBOR continues to optimize the design of the quenching tank to ensure that the medium can evenly and fully contact the camshaft surface to further control deformation.
4. Subsequent correction and precision machining
Even after a carefully designed heat treatment process, the camshaft may still have a certain amount of minor deformation. To this end, KORBOR is equipped with advanced measuring equipment and correction technology to conduct a comprehensive inspection of the camshaft after heat treatment and accurately correct any deviations found. Subsequently, the camshaft is precision machined using high-precision CNC machine tools to ensure that its dimensional and shape accuracy meet the design requirements and reach the "zero defect" standard.
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