GB674399A - Method of manufacturing francis turbine runners and runners manufactured according to said method - Google Patents

Method of manufacturing francis turbine runners and runners manufactured according to said method

Info

Publication number
GB674399A
GB674399A GB10047/50A GB1004750A GB674399A GB 674399 A GB674399 A GB 674399A GB 10047/50 A GB10047/50 A GB 10047/50A GB 1004750 A GB1004750 A GB 1004750A GB 674399 A GB674399 A GB 674399A
Authority
GB
United Kingdom
Prior art keywords
blades
rim
welded
recesses
stainless steel
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
GB10047/50A
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.)
KARLSTAD MEKANISKA AB
Metso Fiber Karlstad AB
Original Assignee
KARLSTAD MEKANISKA AB
Karlstads Mekaniska Werkstad AB
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 KARLSTAD MEKANISKA AB, Karlstads Mekaniska Werkstad AB filed Critical KARLSTAD MEKANISKA AB
Publication of GB674399A publication Critical patent/GB674399A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/125—Rotors for radial flow at high-pressure side and axial flow at low-pressure side, e.g. for Francis-type turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/121—Blades, their form or construction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

674,399. Making turbines. AKTIEBOLAGET KARLSTADS MEKANISKA WERKSTAD. April 24, 1950 [Jan. 24, 1950], No. 10047/50. Class 83 (ii). [Also in Group XXVI] A method of manufacturing Francis turbine runners in which the rim and the blades are made separately and then welded together is characterized in that the rim and/or the blades is or are provided, on the parts liable to corrosion, with welded linings of corrosion-resistant material. A cast steel rim 1 has recesses 5, corresponding to the number of blades, cut in its interior surface, the side 9 of the recess conforming to the blade contour. The rim is rotated about a horizontal or inclined axis an stainless steel is welded into the recesses by means of an electrode. The rim is then clamped to a table 17 and the welded fillings are turned down with a tool 19 and finally polished. The recesses may be omitted, in which case the linings are chamfered by grinding. The linings are applied to the blades by clamping flat blades 21 in a vertical turning lathe (Fig. 2) and recessing each blade over an area 31 (Fig. 3) to the thickness of the welded lining. The recesses are filled with stainless steel as were those in the rim and the blades machined and bent to shape. When assembling the runner, the blades are supported by a disc 33 and tackwelded to the rim 1 after which the hub of the runner (not shown) is welded to the blades and finally the blades are welded to the rim, using stainless steel electrodes. The rim only may be coated and the blades made from stainless steel. Reference has been directed by the Comptroller to Specification 636,084.
GB10047/50A 1950-01-24 1950-04-24 Method of manufacturing francis turbine runners and runners manufactured according to said method Expired GB674399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE674399X 1950-01-24

Publications (1)

Publication Number Publication Date
GB674399A true GB674399A (en) 1952-06-25

Family

ID=20314718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10047/50A Expired GB674399A (en) 1950-01-24 1950-04-24 Method of manufacturing francis turbine runners and runners manufactured according to said method

Country Status (1)

Country Link
GB (1) GB674399A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159106A (en) * 1962-03-21 1964-12-01 Allis Chalmers Mfg Co Impeller and method of making same
CN1912380B (en) * 2005-07-14 2013-01-02 通用电器（加拿大）公司 Split francis turbine runner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159106A (en) * 1962-03-21 1964-12-01 Allis Chalmers Mfg Co Impeller and method of making same
CN1912380B (en) * 2005-07-14 2013-01-02 通用电器（加拿大）公司 Split francis turbine runner

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