We use the metal powder forming and sintering process, combined with subsequent finishing.
The gear with high strength, wear resistance and complex geometric structure is produced to meet the needs of modern transmission systems for lightweight, low noise and high efficiency.
Advantages of Powder Metallurgy:
• High precision: Precisely formed through molds, with high dimensional accuracy such as tooth profile and tooth pitch, and excellent meshing performance.
• High efficiency: Complex structures can be formed at one time, reducing cutting processing, resulting in high production efficiency and low cost.
• Material saving: The near-net-shape forming process has a material utilization rate of over 95%, thus conserving resources.
• Structural advantage: It can achieve complex structures (such as different combinations of tooth numbers and tooth orientations), and features a compact and integrated design.
• Stable performance: The material structure is uniform, and its wear resistance, strength and other properties are stable, making it suitable for mass production.
Powder metallurgy gears have the following characteristics:
• Material properties:
By adjusting the composition of metal powders (such as iron, copper, stainless steel, etc.) and their ratios, different requirements for strength, wear resistance and corrosion resistance can be met.
The pore structure is controllable and can self-lubricate with oil, reducing friction.
• Process characteristics:
High precision: Mold forming ensures the accuracy of tooth profile, tooth pitch, etc. (IT8-IT10 grades), suitable for high-precision transmission scenarios.
Complex forming: It can form complex structures such as double teeth, internal teeth, and helical teeth at one time, reducing assembly processes.
Near-net forming: Material utilization rate exceeds 95%, with less cutting volume, reducing costs and energy consumption.
• Performance characteristics:
Mechanical properties: The density can reach over 90% of the theoretical density, and the strength and hardness are close to those of traditional machined gears (for example, the tensile strength of iron-based gears can reach over 600MPa).
Self-lubricating property: Oil is stored in pores, suitable for low-oil or maintenance-free scenarios (such as household appliances and small gears in automobiles).
Batch consistency: High process stability, suitable for mass production, and good consistency of parts.
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