Sintered Oil Pump Gear
Powder metallurgy sintered oil pump gear is a precision gear component prepared using powder metallurgy technology, mainly used in oil pump systems in the fields of automobiles, engineering machinery, etc. It achieves hydraulic oil transportation and pressure regulation through tooth meshing. Its core characteristics include mainly iron-based materials, high-precision tooth shaped structures, and sintering forming processes, which have advantages such as high material utilization, low manufacturing costs, and stable mechanical properties.
- Product Introduction
Materials and Preparation Techniques
• Material system: Using iron-based powder as the main raw material, alloy elements such as nickel, copper, molybdenum can be added according to demand, and the formability can be improved through powder pretreatment (such as adding lubricants).
• Key process steps:
1. Powder preparation: Metal powder is produced using atomization or reduction methods to ensure particle uniformity and purity;
2. Forming process: Unidirectional compression molding is carried out through hard alloy molds, and the compression density can reach 6.7-7.4g/cm ³;
3. Sintering core: Solid phase sintering is carried out in a decomposed ammonia atmosphere, with a temperature range of 1050-2000 ℃, to achieve metallurgical bonding between powder particles;
4. Post treatment strengthening: By heat treatment (such as high-frequency quenching), the hardness is increased to HRC30-50, and some products require finishing or oil immersion treatment to optimize accuracy and wear resistance.
product Parameter (specification)
|
Commodity |
Factory customized high precision strong wear resistance powder metallurgy sintered oil pump gear |
| Accuracy | ±0.02mm |
| Density | 6.7-7.4g/cm³ |
| Hardness | HRC30-40 (after heat treatment ) |
| Sintering Temperature | 1050-2000℃ |
| MOQ | 2000 PCS |
Producing Equipment
Inspection Method
FAQ
Advantages of sintered oil pump gears
The inherent advantages brought by manufacturing processes
• Strict tolerance control: Through powder pressing and sintering processes, gear molecules are tightly arranged to achieve high-precision dimensional tolerances, ensuring precise fit with pump bodies, bearings, and other components, and reducing clearance leakage during operation.
• High manufacturing repeatability: Standardized molds and unified production parameters (such as temperature and pressure) ensure extremely high consistency of gears in mass production, reducing assembly errors and improving the stability of the entire oil pump performance.
• Material utilization and environmental friendliness: As an additive manufacturing process, sintering process wastes less materials and is more energy-efficient and environmentally friendly compared to traditional cutting processing, meeting the requirements of modern industry for green production.
The advantage of balancing performance and cost
• Cost economy: By eliminating a large number of cutting processes, the utilization rate of raw materials is improved, especially in small and medium-sized production, which can significantly reduce manufacturing costs and simplify subsequent processing procedures.
• Adapt to the working conditions of the oil pump: Sintered gears can be optimized through material formulation (such as adding wear-resistant alloy components) to improve wear resistance and impact resistance, and adapt to the load requirements of high viscosity media (such as lubricating oil) transported by the oil pump.
The synergistic advantage with the oil pump function
• Compact structure: The sintering process can manufacture complex tooth shaped structures, and the gear volume is small, which helps to reduce the overall size of the oil pump and conforms to the design characteristics of "simple and compact structure" of gear pumps.
• Low maintenance cost potential: High precision tooth surfaces reduce mechanical wear during operation, combined with the low maintenance cost of the oil pump itself, which can further extend the service life of the equipment and reduce long-term operation and maintenance investment.
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