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About UsYantai Daming Hydraulic Technology Co., Ltd. is located in Zhifu District, Yantai City, Shandong Province. Founded in 2021, the company is a technology-driven enterprise specializing in the R&D, manufacturing, and sales of core hydraulic components and control system integration for construction machinery.
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Contact UsWith a global vision and a down-to-earth approach, driven by technology and powered by exceptional service, Yantai Dameng is steadily advancing toward its vision of becoming a leading, specialized brand in hydraulic attachment and hydraulic circuit control.
What are the machining processes for hydraulic valves?
2026-02-27
Hydraulic valves are critical components in hydraulic transmission systems, responsible for controlling the flow direction, pressure levels, and system stability. The manufacturing of hydraulic valves relies heavily on precision machining processes; below, we will examine these processes in detail.
I. Processing Methods
The machining of hydraulic valve manifolds encompasses multiple processes, including cutting on CNC machine tools, drilling or milling, and grinding.
1. Machining: The machining process is carried out on CNC machine tools and requires the use of auxiliary equipment such as fixtures, collets, and tool holders to secure the workpiece, thereby ensuring machining accuracy.
2. Drilling and Milling: The flow passages in hydraulic valves require drilling and milling, which necessitate the selection of appropriate cutting tools and cutting speeds. At the same time, the hole diameters must be correctly determined in accordance with design requirements, and the perpendicularity of the drill axis, as well as the accuracy of diameter and depth, must be ensured.
3. Grinding: Primarily used for machining special-shaped surfaces such as valve seats and filter holes.
II. Material Selection
Hydraulic valves are typically manufactured from steel or aluminum alloy. Steel offers high hardness and strength, making it suitable for applications involving heavy loads and high pressures; aluminum alloys, on the other hand, are lightweight and exhibit excellent corrosion resistance, making them the preferred choice for producing lightweight valves. The selection of materials should be based on the specific requirements of the operating environment and the intended application of the hydraulic valve.
III. Processing Precautions
The manufacturing of hydraulic valves requires strict adherence to rigorous technical specifications and a comprehensive set of requirements and standards. Below, we will examine the key considerations during the machining process:
1. Prior to each process step, inspect the quality and composition of materials and maintain appropriate records; nonconforming materials shall be promptly handled or scrapped.
2. Prior to machining, verify that the part’s integrity and surface condition meet the machining requirements to minimize scrap and determine the appropriate machining method.
3. Appropriate fixtures or other clamping methods shall be used to ensure secure and stable workpiece holding without inducing deformation.
4. Cutting tools should be selected with appropriate cutting-edge geometry and dimensions, and coated or designed for enhanced thermal conductivity to minimize friction and heat-induced tool wear.
5. CNC machine tool operation should minimize manual intervention to ensure machine accuracy and stability.
In summary, the manufacturing of hydraulic valves requires strict adherence to a comprehensive set of machining specifications and requirements; only in this way can hydraulic valves that meet performance criteria and exhibit reliable quality be produced.
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