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Custom CNC machining high-precision custom hydraulic valve cores

Custom machined hydraulic control valve spool

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Common materials for hydraulic valve cores include:

  1. Carbon Steel: Such as 45# steel. Carbon steel, after appropriate heat treatment, has high strength and hardness, making it suitable for general hydraulic valve cores.
  2. Alloy Steel: Such as 40Cr, 42CrMo, etc. Alloy steel, after quenching and tempering treatment, has high strength, toughness, and wear resistance, making it suitable for hydraulic valve cores with higher requirements.
  3. Stainless Steel: Such as 304 and 316 stainless steel. Stainless steel has excellent corrosion resistance, making it suitable for hydraulic valve cores that need to operate in corrosive environments.
  4. Tool Steel: Such as Cr12, D2, etc. Tool steel has extremely high hardness and wear resistance, making it suitable for hydraulic valve cores that require high precision and wear resistance.
  5. Powder Metallurgy Materials: Powder metallurgy materials can produce parts with complex shapes and high hardness and wear resistance, making them suitable for hydraulic valve cores with special requirements.
  6. High-Strength Alloy Aluminum: In applications with weight reduction needs, high-strength alloy aluminum can also be used to manufacture hydraulic valve cores.

The selection of these materials depends on specific factors such as the operating environment, working pressure, and machining processes.

The processing of hydraulic valve cores has the following characteristics:

  1. High Precision Requirements: Hydraulic valve cores typically require high precision in dimensions and shapes to ensure the reliability and performance of the hydraulic system. Minimal machining errors and low surface roughness are basic requirements.
  2. Complex Shapes and Structures: Hydraulic valve cores often have complex structures, including multiple steps, grooves, and holes, which require multi-axis CNC machines for processing.
  3. Material Selection: Hydraulic valve cores are usually made of high-strength, wear-resistant materials such as alloy steel and stainless steel. Processing these materials requires selecting appropriate tools and cutting parameters to improve machining efficiency and quality.
  4. Heat Treatment and Surface Treatment: To enhance the hardness and wear resistance of the valve core, heat treatments such as quenching and tempering are typically required. Additionally, surface treatments like chromium plating and nitriding may be needed to further improve wear resistance and corrosion resistance.
  5. Precision Machining Processes: The processing of hydraulic valve cores requires precision machining processes such as precision turning, grinding, honing, and polishing. Grinding and honing, in particular, can improve the dimensional accuracy and surface quality of the parts.
  6. Automation and Efficient Production: To improve production efficiency and consistency, automated processing equipment and production lines are often used, including CNC lathes, CNC grinders, and automated loading and unloading systems.
  7. Inspection and Quality Control: Strict inspection and quality control are required during and after processing. Common inspection methods include coordinate measuring machines (CMM), optical inspection, and non-destructive testing to ensure that the valve cores meet all technical requirements and design standards.
Material: Steel.
Process: Raw material cutting, CNC milling.
Surface treatment: Self surface.
Tolerance: +/-0.01mm
MOQ: 1 pieces.
Testing equipment Vernier caliper, Projector, Coating thickness gauge。
Packaging: Seaworthy packing with protection for productions or customers’ requirement.
Delivery: 10 days.