Stator blades shrouds

Axial compressor blades are usually forged and milled. Precision casting has been used on occasion. The most common material used is a 12 chrome steel, in the AISI 400 series, and is also known as 400 series stainless steel. While the stator blades are occasionally shrouded, the rotor blades are free-standing. Lashing wires have been used on rotor blades, but are generally used to solve a blade vibrational stress problem. 

Shop performance test, 416 Shrink fitted hubs, 335 Shrouds, stator blades, 248 Sidestream arrangements, 143 Sidestream compres.sors,... 

Diffuser ring shrouded turbines stator ring having 20 blades,... 

An estimated 75% of the components of modem aerospace gas turbines are coated, in both the hot and cold sections. This includes stator shrouds and vanes, blade platform edges, blade z-notches, blade tips and shroud tops, and combustor-liner interior surfaces. The use of ceramic coatings in aerospace turbines is being expanded to marine and industrial gas turbines which have similar (and often more acute) environmental problems. 

The turbine assembly has many losses that combine to produce significant frictional work through frictional torques exerted by the casing. These include the fluid scrubbing on the back of the disk and on the back of the rotating shroud, if used, stator biade fluid frictional losses, and rotor blade frictional losses. Other losses include leakage from clearances between the rotor... 

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