What are the standards for the quenched and tempered hardness of the pump shaft surface?
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Experts: Is there any standard for the hardness required as a result of quenching and hardening treatment on the surface of pump shafts? What is the approximate range of such hardness? Thank you; it would be great to have some recommendation criteria.
For quenching and tempering, depending on the material type – in the case of alloy steel – relevant raw material standards are available, with detailed parameters provided. For other cases of carburizing and nitriding, it is necessary to refer to the relevant carburizing and nitriding processes to determine what the HV value should be. When spraying this specific material, an agreement must be reached with the manufacturer, and the procedure should be followed as agreed.
Different materials, different manufacturing processes. In terms of heat treatment and surface treatment, it is still necessary to accumulate one’s own work experience and professional knowledge.
Different materials, different manufacturing processes. In terms of heat treatment and surface treatment, it is still necessary to accumulate one’s own work experience and professional knowledge.
Here we usually use HB as the measurement unit. Thank you, I’ve learned it.
According to GB3077, the tempering temperature is indicated in terms of HB; for some applications involving tungsten carbide spraying or nitriding, Vickers hardness is used