JPS57200542A - Cast steel member and preparation thereof - Google Patents

Cast steel member and preparation thereof

Info

Publication number
JPS57200542A
JPS57200542A JP56084371A JP8437181A JPS57200542A JP S57200542 A JPS57200542 A JP S57200542A JP 56084371 A JP56084371 A JP 56084371A JP 8437181 A JP8437181 A JP 8437181A JP S57200542 A JPS57200542 A JP S57200542A
Authority
JP
Japan
Prior art keywords
ingot
casting
slag
electrode
prismatic
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.)
Granted
Application number
JP56084371A
Other languages
Japanese (ja)
Other versions
JPS625966B2 (en
Inventor
Koji Sato
Fumio Hataya
Norio Kitamura
Takeshi Wada
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56084371A priority Critical patent/JPS57200542A/en
Publication of JPS57200542A publication Critical patent/JPS57200542A/en
Publication of JPS625966B2 publication Critical patent/JPS625966B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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

Abstract

PURPOSE: To obtain a cast steel member having characteristics equal to or more than that of a tempered and annealed member only by annealing after casting, in an electroslag casting method using steel as stock material, by forming a structure based on prismatic crystal developed from the outside of said member toward inside direction.
CONSTITUTION: For example, a material corresponding to JIS, SCSI having a chemical composition shown by a table is used and a guide vane is prepared by an electroslag process casting apparatus consisting of an ingot 1, a movable and a fixed water cooled casting molds 2, 3 and an electrode. When current is supplied to this apparatus, the electrode 5 is melted by Joule heat generated in a slag 4 and the molten substance is fallen into the slag 4 in a liquid droplet form and reaches the ingot 1 to be rapidly cooled and solidified as well as to be formed into prismatic crystal in the ingot 1. Because the prismatic structure of this member is grown at an extremely high cooling speed as described above, the member itself comes to an annealed condition as a whole and it is unnecessary to anneal the same again.
COPYRIGHT: (C)1982,JPO&Japio
JP56084371A 1981-06-03 1981-06-03 Cast steel member and preparation thereof Granted JPS57200542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56084371A JPS57200542A (en) 1981-06-03 1981-06-03 Cast steel member and preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56084371A JPS57200542A (en) 1981-06-03 1981-06-03 Cast steel member and preparation thereof

Publications (2)

Publication Number Publication Date
JPS57200542A true JPS57200542A (en) 1982-12-08
JPS625966B2 JPS625966B2 (en) 1987-02-07

Family

ID=13828665

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56084371A Granted JPS57200542A (en) 1981-06-03 1981-06-03 Cast steel member and preparation thereof

Country Status (1)

Country Link
JP (1) JPS57200542A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51126917A (en) * 1975-04-30 1976-11-05 Hitachi Ltd Process for heat treatment of 12%cr steel axle material
JPS52820A (en) * 1975-06-24 1977-01-06 Nippon Kayaku Co Ltd Preparation of viscous oil-in-water type emulsion composition of dye s lightly soluble in water
JPS5413208A (en) * 1977-06-30 1979-01-31 Toshiba Corp Facsimile communication system
JPS559271A (en) * 1978-07-05 1980-01-23 Laurel Bank Mach Co Ltd Miscount prevention unit for paper leaves counter
JPS5558353A (en) * 1978-10-20 1980-05-01 Hitachi Ltd Stainless cast steel for hydraulic turbine runner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51126917A (en) * 1975-04-30 1976-11-05 Hitachi Ltd Process for heat treatment of 12%cr steel axle material
JPS52820A (en) * 1975-06-24 1977-01-06 Nippon Kayaku Co Ltd Preparation of viscous oil-in-water type emulsion composition of dye s lightly soluble in water
JPS5413208A (en) * 1977-06-30 1979-01-31 Toshiba Corp Facsimile communication system
JPS559271A (en) * 1978-07-05 1980-01-23 Laurel Bank Mach Co Ltd Miscount prevention unit for paper leaves counter
JPS5558353A (en) * 1978-10-20 1980-05-01 Hitachi Ltd Stainless cast steel for hydraulic turbine runner

Also Published As

Publication number Publication date
JPS625966B2 (en) 1987-02-07

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