Regarding HF of the valve plate
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Regarding the valve disc of gate valves, it is common to see the base material listed as HF; Hf seems to refer to cemented carbide. Is this cemented carbide coated with a layer or is it treated in some other way? Thank you so much to all of you
HF usually stands for hard-facing, which refers to the application of a layer of cemented carbide on the surface of the valve plate to enhance wear resistance and corrosion resistance. This treatment method can improve the service life and reliability of valves. .
The meaning of HF: HF is the abbreviation for the English term “Hard Face”, which means “surface hardening treatment”. This treatment is usually achieved by welding a layer of cemented carbide onto the base material.