The manufacturing process of the external self-sealing oil suction filter involves intricate assembly of multiple steps and components to ensure its effectiveness in filtering impurities from oil and protecting the hydraulic system. The following is a generalized outline of the manufacturing process, with specific details potentially varying according to product design and manufacturer:
I. Design and Planning
Needs Analysis: Firstly, determine the key parameters of the filter, such as specifications, filtration accuracy, and working pressure, based on application requirements.
Structural Design: Design the overall structure of the filter, including the upper cover, filter head, cylinder body, and filter element, ensuring it meets the requirements of a self-sealing system.
Material Selection: Choose suitable materials, such as aluminum die-casting blanks for the cylinder body, to ensure the filter's strength and corrosion resistance.
II. Component Production
Blank Molding: For components like the aluminum die-casting blank cylinder body, employ die-casting processes. This involves mold design, alloy melting, die-casting, and deburring.
Filter Element Production: Manufacture the filter element according to design specifications. The material and structure of the filter element directly affect filtration efficiency, typically consisting of porous materials like stainless steel mesh or fibrous materials.
Component Processing: Machine other components like the upper cover and filter head, involving drilling, tapping, turning, and other processes to ensure precise fitting between parts.
III. Assembly and Debugging
Component Assembly: Assemble the cylinder body, filter element, upper cover, filter head, and other components as per design specifications. During assembly, pay attention to the fitting relationships and sealing between components.
Self-sealing Device Installation: Install self-sealing valves to ensure automatic closure of the oil path during filter element replacement or other maintenance operations, preventing oil leakage.
Performance Debugging: Conduct performance testing on the assembled filter, examining key indicators such as filtration accuracy, working pressure, and self-sealing effectiveness to ensure compliance with design requirements.
IV. Surface Treatment and Coating
Surface Treatment: Prepare the filter surface through processes like polishing, degreasing, and derusting to enhance coating adhesion and aesthetics.
Coating: Apply a corrosion-resistant and wear-resistant coating to the filter surface using electrostatic spraying or similar techniques. The choice of coating material should be based on the application environment and the filter's material composition.
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