Regarding the material of the turbine spindle
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I would like to ask the experts: The design material for the turbine shaft supplied by a certain vendor is 28CrMoNiV, while the material specified in the technical agreement is 34CrMo1A. What are the application ranges and performance characteristics of these two materials? Can this kind of replacement be done? Thank you for your message
This question is too technical. Try to find a solution from another perspective. That is to contact the equipment manufacturer, purchase its spare parts, along with warranty terms. Additionally, it is also possible to make purchases under a technical agreement; the manufacturer will produce according to the materials you provide. Hehe, but only the manufacturer knows what material it is;P It’s better to purchase it using the material specified by the manufacturer, along with relevant warranty terms. You just need to purchase spindles of that specific model of machine (preferably as complete rotor sets, as this relates to the issue of dynamic balance); as long as the service life is ensured, even one made from wood will do: lol
Thank you for your reply. I still would like to understand this issue from a technical perspective
Thank you for your reply. I still would like to understand this issue from a technical perspective
28CrMoNiV steel: 1. It has stable microstructural properties and can be used at 525°C for extended periods of time. 2. Fracture properties: J0.05=73.5 N/mm, KJ0.05=128.9 MPa·2m1/2; Ji=29.4 N/mm, J0.2=210.7 N/mm. Units of this type are quite common in Hangzhou Automobile factories. Although 34CrMo1A steel has relatively poor hardenability, its overall mechanical properties are sufficient for use as rotor material in medium and small-sized generator sets. The turbine rotor is the core component of such equipment, and manufacturers exercise strict control over it; therefore, there will be no issues with its quality.