What is the difference between ordinary stainless steel hemisphere and high temperature stainless steel hemisphere?
The main difference between high temperature stainless steel hemisphere and normal temperature stainless steel hemisphere is different in manufacturing process and sealing: generally normal temperature stainless steel hemisphere is a soft sealing valve seat; High temperature is a hard seal (Metal or mechanical carbon and ceramics, etc) Moreover, the material of the valve internals is better than that of the soft seal. In terms of material treatment, the normal temperature ball lathe can directly enter the assembly after processing; The high temperature ball has to be processed ( Because the process of processing different materials is different, such as nitriding, spraying, etc).
Assembly: Generally, the normal temperature stainless steel hemisphere can be assembled after getting the parts; The high-temperature stainless steel hemisphere needs to grind the ball core and valve seat. This sequence is also critical, and the size of the leakage depends on grinding. 304 stainless steel hemisphere: it is a common material in stainless steel beads with a density of 7. 93g/cm3, also known in the industry as 18/8 stainless steel beads. High temperature resistance 800 Degrees, good processing performance, high toughness, stainless steel hemisphere is widely used in industrial and furniture decoration industry and food medical industry.
304 is a universal stainless steel hemisphere, which is widely used in manufacturing requiring good comprehensive properties (Corrosion resistance and formability)Equipment and parts. In order to maintain the inherent corrosion resistance of the stainless steel hemisphere, the Steel must contain more than 18% chromium and more than 8% nickel.
At the same time, as the recent research of DONGYUAN shows, the benefits of improved productivity and firm performance can make implementing basic management practices worth it.
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