JB/T 6690-1993
Tolerance and specifications for fir-tree root and groove of turbine blade of gas turbine (English Version)

Standard No.

JB/T 6690-1993

Language

Chinese, Available in English version

Release Date

1993

Published By

Professional Standard - Machinery

Latest

JB/T 6690-1993

Scope

This standard specifies the dimensional markings, tolerances and technical requirements for fir-tree-shaped blade roots and blade root grooves of gas turbine turbine blades. This standard is applicable to gas turbine turbine blade fir-tree root blades and wheel disc fir-tree root grooves.

JB/T 6690-1993 history

• 1993 JB/T 6690-1993 Tolerance and specifications for fir-tree root and groove of turbine blade of gas turbine