Views: 0 Author: J-VALVES Publish Time: 2024-07-01 Origin: Site
As a key component in industrial fluid control systems, the performance and reliability of gate valves are directly related to the safe operation of the system. Precision forging technology plays a crucial role in the manufacturing of gate valves. It can not only improve the mechanical properties and dimensional accuracy of products but also effectively reduce costs. This article will discuss the key points of process optimization and quality control of precision forging for gate valves to enhance the overall quality and market competitiveness of products.
Precision forging is an advanced manufacturing technology that enables forgings to achieve high-precision dimensions and excellent performance by precisely controlling the metal deformation process. Compared with traditional casting processes, precision forging can significantly improve the density and mechanical properties of materials, reduce internal defects, and extend the service life of products.
Material selection
Selecting high-quality raw materials is the basis for ensuring the performance of gate valves. Commonly used materials include carbon steel, alloy steel, etc. After forging, these materials can obtain a fine grain structure, significantly improving strength and toughness. F91 steel is an improved 9Cr-1Mo high-strength ferritic heat-resistant steel with excellent oxidation resistance and high-temperature steam corrosion resistance, suitable for high-temperature and high-pressure working conditions.
Forging method
The choice of forging method has a significant impact on product quality. Closed die forging can achieve precise forming of complex geometric shapes and ensure dimensional accuracy and surface quality. The multi-directional closed die forging process can make the metal flow lines distributed reasonably and completely continuous, further improving the mechanical properties of the product.
Heat treatment process
Heat treatment is an important process after forging and can improve the mechanical properties and processing performance of materials. F91 steel needs to be normalized after forging to refine grains and eliminate internal stress. Reasonable heat treatment processes can significantly improve the strength and toughness of products and extend service life.
