Novel hollow sodium-filled valve
A valve and hollow technology, applied in the direction of valve devices, machines/engines, mechanical equipment, etc., can solve problems such as many processes, low material utilization rate, difficult temperature and quality control, etc., achieve simple forming process, improve cooling effect, and realize lightweight effect
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[0021] see figure 1 , which is a structural schematic diagram of the novel hollow sodium-filled valve described in the present invention.
[0022] A novel hollow sodium-filled valve 10 of the present invention includes a valve housing 11 and a solid rod portion 12; the valve housing 11 is preformed by cross-wedge rolling from a steel pipe material, and the head of the preformed blank is friction welded and sealed. , and then integrally formed by a die forging process, which includes an integrally formed trumpet-shaped hollow disc portion 11a and a hollow rod portion 11b; one end of the hollow rod portion 11b is welded to the solid rod portion 12, and the solid rod portion 12 The diameter of the cross section is the same as the outer diameter of the cross section of the hollow rod part 11b; the disc end face of the hollow disc part 11a is airtight, and forms an inner cavity with the hollow rod part 11b and the solid rod part 12; the inner cavity is filled There is metallic sod...
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