A steam turbine blade capable of improving impact toughness and its production process
A steam turbine blade and production process technology, applied in the field of steam turbine blades and its production process, to achieve the effects of weakening the segregation of alloy elements, improving service life, and reducing or eliminating defects such as banded structures
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0046] This embodiment provides a steam turbine blade capable of improving impact toughness and its production process. The mass percentages of its chemical composition are: C: 0.13%, Si: 0.8%, Mn: 0.5%, Cr: 14%, Ni: 0.1 %, Cu: 1.3%, Mo: 0.6%, W: 0.1%, V: 0.36%, Nb: 0.5%, Al: 0.28%, Ti: 0.16%, B: 0.08%, Na: 0.45%, S: 0.02 %, P: 0.03%, rare earth metal: 0.3%, the balance is Fe;
[0047] The chemical composition mass percentage of rare earth metals is: Ce: 8%, Pr: 10%, Nd: 7%, Pm: 3%, Gd: 6%, Lu: 6%, Dy: 10%, Eu: 3%, Tb : 10%, Ho: 1.5%, Er: 2.5%, and the balance is La.
[0048] The production process of the steam turbine blade that can improve the impact toughness of this embodiment is carried out according to the following procedures: hot forging→annealing→tempering→blade machining→quenching and tempering heat treatment→cooling→surface strengthening heat treatment→ultrasonic flaw detection→clean packaging; : Annealing process: After hot forging, heat to 800°C and keep it for ...
Embodiment 2
[0055] This embodiment provides a steam turbine blade capable of improving impact toughness and its production process. The mass percentages of its chemical composition are: C: 0.15%, Si: 0.9%, Mn: 0.8%, Cr: 16%, Ni: 0.3 %, Cu: 1.5%, Mo: 1.1%, W: 0.15%, V: 0.45%, Nb: 0.8%, Al: 0.30%, Ti: 0.18%, B: 0.10%, Na: 0.48%, S: 0.01 %, P: 0.02%, rare earth metal: 0.6%, the balance is Fe;
[0056] The chemical composition mass percentage of rare earth metals is: Ce: 10%, Pr: 12%, Nd: 9%, Pm: 5%, Gd: 9%, Lu: 8%, Dy: 12%, Eu: 5%, Tb : 12%, Ho: 2.5%, Er: 3.5%, and the balance is La.
[0057] The production process of the steam turbine blade that can improve the impact toughness of this embodiment is carried out according to the following procedures: hot forging→annealing→tempering→blade machining→quenching and tempering heat treatment→cooling→surface strengthening heat treatment→ultrasonic flaw detection→clean packaging; : Annealing process: After hot forging, heat to 820°C for 20 minutes...
Embodiment 3
[0064] This embodiment provides a steam turbine blade that can improve impact toughness and its production process. The mass percentages of its chemical composition are: C: 0.14%, Si: 0.85%, Mn: 0.6%, Cr: 15%, Ni: 0.2 %, Cu: 1.4%, Mo: 0.68%, W: 0.12%, V: 0.38%, Nb: 0.6%, Al: 0.29%, Ti: 0.17%, B: 0.09%, Na: 0.46%, S: 0.008 %, P: 0.01%, rare earth metal: 0.5%, the balance is Fe;
[0065]The chemical composition mass percentage of rare earth metals is: Ce: 9%, Pr: 11%, Nd: 8%, Pm: 4%, Gd: 8%, Lu: 7%, Dy: 11%, Eu: 4%, Tb : 11%, Ho: 2%, Er: 2.8%, and the balance is La.
[0066] The production process of the steam turbine blade that can improve the impact toughness of this embodiment is carried out according to the following procedures: hot forging→annealing→tempering→blade machining→quenching and tempering heat treatment→cooling→surface strengthening heat treatment→ultrasonic flaw detection→clean packaging; : Annealing process: After hot forging, heat up to 810°C and hold for 18 ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com