GB195050A - Improvements in steam turbine blades, and in the method of manufacturing such blades - Google Patents

Improvements in steam turbine blades, and in the method of manufacturing such blades

Info

Publication number
GB195050A
GB195050A GB5356/23A GB535623A GB195050A GB 195050 A GB195050 A GB 195050A GB 5356/23 A GB5356/23 A GB 5356/23A GB 535623 A GB535623 A GB 535623A GB 195050 A GB195050 A GB 195050A
Authority
GB
United Kingdom
Prior art keywords
hardened
hardening
blade
blades
places
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5356/23A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri AG Germany
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Germany
BBC Brown Boveri France SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brown Boveri und Cie AG Germany, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Germany
Publication of GB195050A publication Critical patent/GB195050A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/286—Particular treatment of blades, e.g. to increase durability or resistance against corrosion or erosion

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

195.050. Akt.-Ges. Brown, Boveri, et Cie. March 18, 1922, [Convention date]. Case-hardening. - Blades for steam turbines are hardened only in those parts which are most exposed to erosion, more particularly the upper part of the leading edge of the blade as indicated by hatchings, Fig. 2. The whole of the edges may be hardened as indicated in Figs. 3 and 4, the head of the blade being left soft to facilitate riveting the binding ring a. One method of making the blades consists in employing a material which of itself cannot be hardened. and coating this material at the places where it is not to be hardened with, for example, an electrolytic deposit which does not allow any carbon to penetrate, and then, by a casehardening operation, enriching the unprotected places with carbon, and then hardening such places by subsequent quenching. To prevent distortion, the blade, before quenching, may be clamped in a rigid mould, or be bent in the opposite direction to compensate for the distortion due to the hardening. Those parts of the hardened blade which are to remain soft may be softened again by tempering after the hardening.
GB5356/23A 1922-03-18 1923-02-23 Improvements in steam turbine blades, and in the method of manufacturing such blades Expired GB195050A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE195050X 1922-03-18

Publications (1)

Publication Number Publication Date
GB195050A true GB195050A (en) 1923-07-19

Family

ID=5747534

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5356/23A Expired GB195050A (en) 1922-03-18 1923-02-23 Improvements in steam turbine blades, and in the method of manufacturing such blades

Country Status (1)

Country Link
GB (1) GB195050A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783967A (en) * 1952-01-03 1957-03-05 Maschf Augsburg Nuernberg Ag Ceramic machine parts
US3275295A (en) * 1964-06-12 1966-09-27 English Electric Co Ltd Turbine blade with tapered one-piece erosion shield
US3834833A (en) * 1972-02-18 1974-09-10 Bbc Brown Boveri & Cie Blade construction for axial-flow turbo-machines and method of protecting turbo-machine blades against stress corrosion cracking
EP0379922A1 (en) * 1989-01-24 1990-08-01 Refurbished Turbine Components Limited Turbine blade repair
US5531570A (en) * 1995-03-06 1996-07-02 General Electric Company Distortion control for laser shock peened gas turbine engine compressor blade edges
US5785498A (en) * 1994-09-30 1998-07-28 General Electric Company Composite fan blade trailing edge reinforcement
EP1382799A2 (en) * 2002-07-20 2004-01-21 Rolls Royce Plc Gas turbine engine casing and rotor blade arrangement

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783967A (en) * 1952-01-03 1957-03-05 Maschf Augsburg Nuernberg Ag Ceramic machine parts
US3275295A (en) * 1964-06-12 1966-09-27 English Electric Co Ltd Turbine blade with tapered one-piece erosion shield
US3834833A (en) * 1972-02-18 1974-09-10 Bbc Brown Boveri & Cie Blade construction for axial-flow turbo-machines and method of protecting turbo-machine blades against stress corrosion cracking
EP0379922A1 (en) * 1989-01-24 1990-08-01 Refurbished Turbine Components Limited Turbine blade repair
US5785498A (en) * 1994-09-30 1998-07-28 General Electric Company Composite fan blade trailing edge reinforcement
US5531570A (en) * 1995-03-06 1996-07-02 General Electric Company Distortion control for laser shock peened gas turbine engine compressor blade edges
EP1382799A2 (en) * 2002-07-20 2004-01-21 Rolls Royce Plc Gas turbine engine casing and rotor blade arrangement
EP1382799A3 (en) * 2002-07-20 2005-09-07 Rolls Royce Plc Gas turbine engine casing and rotor blade arrangement

Similar Documents

Publication Publication Date Title
DE1251338B (en) Method for attaching blades in turbine rotors
GB195050A (en) Improvements in steam turbine blades, and in the method of manufacturing such blades
GB155838A (en) Improvements in and relating to the method of manufacturing cutting and milling tools
GB1418136A (en) Method of protecting a steel rotor blade of an axial-flow turbine against stress-crack-corrosion
GB381102A (en) Improvements in or relating to turbine blading
US901115A (en) Method of securing blades of turbines, &c.
GB201146A (en) Improved process for the manufacture of steam turbine rotors
GB432386A (en) Method of protecting turbine blading
GB302657A (en) Improvements in and relating to turbine blades
US2202532A (en) Selenium plating of steel
GB1097862A (en) Improvements in or relating to razor blades
DE385946C (en) Steam turbine blading
GB929960A (en) A turbine nozzle-ring assembly with guide blades and method for assembling the same
DE476551C (en) Process for preparing animal dams for the manufacture of catgut and strings
FR2376906A1 (en) Coated steel shaft for pump motor - is made resistant to stress corrosion cracking by coating with nickel and heat treating
GB216113A (en) Improvements in or relating to guide and moving vanes for engines and machines with rotors, particularly hydraulic, steam and gas turbines
GB1126461A (en) Improvements in or relating to safety razor blades
SU373315A1 (en) METHOD OF THERMAL TREATMENT OF TURBIN BLADE
GB200474A (en) Improved means of fastening the blades in gas turbines and steam turbines
GB531445A (en) Improvements in and relating to composite blades for gas turbines
DE2929634A1 (en) METHOD FOR THE PRODUCTION OF TURBO BLADES FROM TITANIUM OR TITANIUM BASED ALLOY WITH A HARD SURFACE
GB831786A (en) Method of coating molybdenum and its alloys for protection against oxidation at elevated temperatures
ES294930A1 (en) Method of production of deeply hardened steel elements (Machine-translation by Google Translate, not legally binding)
GB206524A (en)
CH217568A (en) Process for the manufacture of cutlery made of stainless steel.