Basic Info.
Application
Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car
Hardness
Hardened Tooth Surface
Gear Position
External Gear
Manufacturing Method
Forged Gear
Toothed Portion Shape
Spur Gear
Transport Package
Wooden Box
Product Description
Product Description
The manufacturing process of large gears, especially giant gears with a diameter of 2 meters or more, is a complex and highly specialized process. It covers a series of steps from raw material selection to final inspection, and requires strict quality control and adherence to specific standards to ensure its performance and lifespan. The following are the main processes, precautions, and key points of quality control in the manufacturing of large gears. The manufacturing process usually listed as below:
Material Selection:
Choose suitable steel according to the usage environment and load requirements, usually using high-quality alloy steel. Considering the size effect, special attention may need to be paid to the uniformity and purity of the material.
Forging:
For large gears, preliminary forming is usually carried out through free forging or die forging. During the forging process, temperature, pressure, and cooling rate must be strictly controlled to ensure the optimization of internal structure and reduce defects.
Heat Treatment:
including processes such as normalizing, quenching, and tempering, aimed at improving the mechanical properties of materials, such as hardness, strength, and toughness. The temperature control, cooling rate, and uniformity during the heat treatment process are crucial for the quality of the final product.
Rough Machining:
After heat treatment, the gear blank is mounted on a heavy-duty lathe for preliminary turning to form its rough shape. Though precision requirements are low at this stage, sufficient material must be left for subsequent fine machining. Operators follow design specifications to cut the outer diameter, end faces, and inner bore, ensuring adequate allowance for future grinding or boring. Controlling cutting parameters like speed and depth is crucial to avoid deformation or surface cracks. Upon completion, inspections verify the correct shape and allowances, preparing the piece for high-precision machining. This step bridges heat treatment with detailed work, impacting final dimensional accuracy and surface quality.
Precision Machining:
Precision machining for big gears includes processes like grinding and shaving to achieve the high precision and surface smoothness essential for design specifications. Grinding involves using precision grinders to finely hone the tooth profile, ensuring exact dimensions and a smooth surface finish. Shaving refines the tooth shape further, correcting minor inaccuracies from the grinding stage and ensuring perfect meshing between teeth. These steps are crucial for maximizing transmission efficiency and stability. Operators meticulously adjust machine settings based on specific gear parameters and use advanced measuring tools to monitor accuracy throughout. This meticulous process not only enhances performance but also extends the gear's lifespan under demanding operational conditions, ensuring reliable and efficient operation. Strict quality control measures are applied to meet design standards, with CNC technology facilitating consistent and repeatable results.
Testing and Inspection:
Using various non-destructive testing methods (such as ultrasonic testing, magnetic particle testing) to inspect internal and surface defects; And verify the product quality through hardness testing, dimensional accuracy measurement, and other methods.
Key Points:
Size Control:
Due to the large size of the large gear, any small error can lead to assembly problems or operational failures.
Stress Analysis:
In the design phase, it is necessary to fully consider the stress distribution under actual working conditions to avoid failure caused by local overload.
Temperature Management:
Both forging and heat treatment stages require precise temperature control to prevent material performance degradation.
Quality Control and Standards
ISO 6336: International standards are used to calculate the load-bearing capacity of gears, including fatigue strength and wear life prediction.
Throughout the entire manufacturing process, it is necessary to strictly follow the above standards and combine modern manufacturing technologies, such as the application of CNC machine tools, to improve production efficiency and product consistency. In addition, continuous monitoring and improvement of production processes are also important measures to ensure the quality of large gears.
Product Parameters
Diameter | ≤10 meters |
Module | ≤45 |
Material | 17CrNiMo6,AIS4140, 40CrNiMo, Bronze or other customized Material |
Process | Cast Alloy Steel, Cast Carbon Steel, Forged Alloy Steel, Forged Carbon Steel |
Heat treatment | Quenching & Tempering, Normalizing & Tempering, Carburizing & Quenching & Tempering |
Weight | 1-10tons |
Structure From | Integrated, Half to Half, Four Pieces and More Pieces |
Tooth Form | Annular Gear, Outer Gear Ring |
Application | Cement, electric power, metallurgy, chemical, non-metallic mining and other industries |
Packaging & Shipping
The importance of safe packaging lies in its ability to ensure that gears remain intact during transportation and storage. Good packaging can effectively prevent gears from being physically damaged, corroded, and affected by environmental factors such as moisture and dust, thereby ensuring that the quality and performance of gears are not compromised. In addition, appropriate packaging can simplify the logistics process, improve handling efficiency, and reduce overall costs. Therefore, safe packaging is a key step in ensuring the satisfaction of end users with the product.
Most shipment by Sea.
Company Profile
Since its establishment, EnDao Industry and its cooperative factories have accumulated over 20 years of professional experience. We specialize in producing products such as spur, helical, bevel, large-sized forged gears, and gearboxes. With our excellent product quality and customer service, we have established a good reputation in the industry.
We have not only established long-term cooperative relationships with numerous high-quality raw material suppliers, but also hold shares in heat treatment plants. This means that every step from raw material procurement to final product can be optimized for cost control and quality assurance. This vertical integration greatly improves production efficiency, reduces costs, and ensures high-quality product output.
Our Advantages
Above 20 years of experience.
Competitive Price & Stable Quality
Fast Delivery with Most Kinds of Gears
Welcome Both Small and Big Orders
Address:
5th Floor, No.35 Lunshang Village, Jimei District, Xiamen, Fujian, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Industrial Equipment & Components
Company Introduction:
Since its establishment, EnDao Industry and its cooperative factories have accumulated over 20 years of professional experience. We specialize in producing products such as spur, helical, bevel, large-sized forged gears, and gearboxes. With our excellent product quality and customer service, we have established a good reputation in the industry.
We have not only established long-term cooperative relationships with numerous high-quality raw material suppliers, but also hold shares in heat treatment plants. This means that every step from raw material procurement to final product can be optimized for cost control and quality assurance. This vertical integration greatly improves production efficiency, reduces costs, and ensures high-quality product output.
Considering the customer′s demand for cost-effectiveness, the factory optimizes internal processes and management to reduce costs, thereby providing products at competitive prices while maintaining high quality. In addition, for orders of different scales, whether it is small-scale trial production or large-scale mass production, the factory can flexibly respond and try its best to meet the specific requirements of each customer. In terms of service, the factory promises to respond promptly to customer needs, whether it is pre-sales consultation or after-sales support, with a professional team on standby at any time to ensure that problems can be quickly and effectively resolved.
In short, our factory stands out in the industry with its rich product line, strong supply chain system, favorable pricing strategy, and high-quality service attitude. EnDao is not only a simple component manufacturer, but also a trusted partner for many enterprises.