Valve body manufacturing method

The invention discloses a valve body manufacturing method. The valve body manufacturing method includes the following steps that firstly, raw metal materials are subjected to hot melting and extrusion forming to form long-strip-shaped profiles; secondly, the profiles are cut into a plurality of blanks, wherein the blanks are matched with valve bodies in shape and are slightly larger than the valve bodies; and thirdly, the blanks are ground and drilled to obtain the valve bodies. According to the manufacturing method, due to the fact that the profile forming step can be performed in most of existing profile production plants in a concentrated mode, and valve body manufacturers only need to perform cold machining such as cutting, grinding and drilling on the profiles without additionally arranging heat treatment equipment, the equipment and production cost is reduced, production efficiency is improved, meanwhile, pollution and energy consumption are reduced, and energy conservation and environment protection are archived; besides, due to the fact that existing professional profile production plants have large profile production equipment, raw metal materials such as aviation aluminum with better performance can be adopted for manufacturing the profiles, the performance of the valve bodies can be effectively improved, and the market competitiveness of enterprises can be effectively improved.