As key basic components, precision parts for industrial equipment are widely used in industrial scenarios such as hydraulic systems and automated machinery. It adopts a composite structure of high-strength engineering plastics and metal inserts, and presents a regular annular sealing structure after precision injection molding, CNC machining and surface strengthening treatment. It has excellent sealing and protection performance, and can be adapted to equipment such as hydraulic oil pots and air pressure vessels to effectively prevent medium leakage and ensure stable operation of equipment. The precise size design perfectly matches the equipment interface, and can still maintain structural integrity under harsh working conditions (high and low temperatures, strong vibrations), providing solid support for the reliability and safety of industrial equipment. It is a core precision component that improves equipment efficiency and reduces operation and maintenance costs.
Oil-resistant and aging-resistant PA66 + GF30 engineering plastics are selected, matched with rust-proof metal inserts, long-term immersion in hydraulic oil without swelling, and stable mechanical properties under -40℃ - 120℃ environment. The sealing surface roughness Ra≤0.8μm, ensuring long-term sealing, and the leakage volume ≤0.01mL/h.
Performance parameters | Index value |
Main material | PA66 + GF30 |
Operating temperature | -40℃ - 120℃ |
Sealing surface roughness | Ra≤0.8μm |
Leakage | ≤0.01mL/h |
(II) Structural design highlights
The innovative ring slot and metal insert collaborative structure can be quickly snapped in place during installation, and has strong anti-vibration loosening ability. After 5g vibration test (10 - 2000Hz), there is no displacement. The edge chamfer and reinforcement rib design improve the structural strength, and the impact toughness reaches 15kJ/m² to prevent accidental damage.
(III) Adaptation and durability
The standardized size covers the mainstream industrial equipment interface and supports customized development. After 5000 opening and closing life tests, the sealing performance decay is ≤5%, and the metal insert has no rust after 720h salt spray test, which ensures the long-term stable operation of the equipment and reduces the frequency of spare parts replacement.
III. Product details
In the research and development stage, the sealing requirements of industrial equipment are deeply analyzed, and CFD simulation is used to simulate the leakage path of the medium to optimize the sealing structure and material compatibility. In the production process, a precision injection mold is used to form the main body in one step. After the metal insert is tempered and nickel-plated, it is perfectly combined with the plastic through ultrasonic hot melt process. Surface treatment: Wear-resistant coating is applied to plastic parts, and rust-proof treatment is strengthened for metal parts.
Before leaving the factory, each part is tested for air tightness (0.6MPa pressure maintenance for 30min without leakage), full dimensional inspection (tolerance ±0.05mm), and simulated working conditions are used to verify the vibration resistance and temperature change resistance. From the hydraulic system of heavy machinery to the air pressure control unit of the automated production line, the precision parts of this industrial equipment have excellent sealing, reliability, durability, and precise adaptation, becoming the "safety guard" of the equipment, helping industrial production to reduce costs and increase efficiency, ensuring the continuous and stable operation of equipment under complex working conditions, and laying a solid foundation for precision parts for intelligent manufacturing.