FR2432351A1 - Bottom casting of bloom for flat or hollow forging - with low ratio of height to mean dia. of bloom - Google Patents

Bottom casting of bloom for flat or hollow forging - with low ratio of height to mean dia. of bloom

Info

Publication number
FR2432351A1
FR2432351A1 FR7823063A FR7823063A FR2432351A1 FR 2432351 A1 FR2432351 A1 FR 2432351A1 FR 7823063 A FR7823063 A FR 7823063A FR 7823063 A FR7823063 A FR 7823063A FR 2432351 A1 FR2432351 A1 FR 2432351A1
Authority
FR
France
Prior art keywords
bloom
flat
forging
ratio
prodn
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
FR7823063A
Other languages
French (fr)
Other versions
FR2432351B1 (en
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.)
Creusot Loire SA
Original Assignee
Creusot Loire 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 Creusot Loire SA filed Critical Creusot Loire SA
Priority to FR7823063A priority Critical patent/FR2432351A1/en
Priority to JP8800279A priority patent/JPS5522490A/en
Priority to ES482396A priority patent/ES482396A1/en
Priority to IT68472/79A priority patent/IT1119040B/en
Priority to GB7926439A priority patent/GB2026914B/en
Priority to DE2931438A priority patent/DE2931438C2/en
Publication of FR2432351A1 publication Critical patent/FR2432351A1/en
Application granted granted Critical
Publication of FR2432351B1 publication Critical patent/FR2432351B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals

Abstract

Bloom is mfd. by bottom casting a liq. material in a mould without a refractory lining and without a head or foot. The ratio of the height of the bloom to its mean dia. is at max. 1.3. During casting and solidification, the upper face of the bloom is covered with an exothermic or insulating medium which prevents rapid cooling of the face. When the bloom is intended for the prodn. of a hollow forging the max. ratio is 1.2 and when it is intended for the prodn. of a flat forging the max. ratio is 0.8. Used for casting blooms for the prodn. of flat or hollow forgings. The bloom does not exhibit centre line shrinkage so that the forging can be placed directly under a press after heating without complicated heating. Inclusions rise to the upper surface of the bloom and are easily removed. Through the absence of a head, the solidification time is shortened and this use causes a redn. in the degree of segregation. The bloom is easily converted to both flat and hollow forgings.
FR7823063A 1978-08-04 1978-08-04 Bottom casting of bloom for flat or hollow forging - with low ratio of height to mean dia. of bloom Granted FR2432351A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7823063A FR2432351A1 (en) 1978-08-04 1978-08-04 Bottom casting of bloom for flat or hollow forging - with low ratio of height to mean dia. of bloom
JP8800279A JPS5522490A (en) 1978-08-04 1979-07-10 Preparation of ingot for forging
ES482396A ES482396A1 (en) 1978-08-04 1979-07-11 Castine blooms
IT68472/79A IT1119040B (en) 1978-08-04 1979-07-13 PROCEDURE FOR THE MANUFACTURE OF FORGED LINGOTTS
GB7926439A GB2026914B (en) 1978-08-04 1979-07-30 Castine blooms
DE2931438A DE2931438C2 (en) 1978-08-04 1979-08-02 Process for the manufacture of forging blocks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7823063A FR2432351A1 (en) 1978-08-04 1978-08-04 Bottom casting of bloom for flat or hollow forging - with low ratio of height to mean dia. of bloom

Publications (2)

Publication Number Publication Date
FR2432351A1 true FR2432351A1 (en) 1980-02-29
FR2432351B1 FR2432351B1 (en) 1982-04-23

Family

ID=9211605

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7823063A Granted FR2432351A1 (en) 1978-08-04 1978-08-04 Bottom casting of bloom for flat or hollow forging - with low ratio of height to mean dia. of bloom

Country Status (2)

Country Link
JP (1) JPS5522490A (en)
FR (1) FR2432351A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2818264A1 (en) * 2013-06-24 2014-12-31 Precicast Bilbao, S.A. Method for melting an alloy part

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR488767A (en) * 1915-02-18 1918-11-14 Benjamin Talbot Improvements in the processing of iron and steel ingots
GB278032A (en) * 1926-04-29 1927-09-29 Charles Algernon Parsons Improvements in and relating to the casting of ingots
FR2236583A1 (en) * 1973-07-10 1975-02-07 Aikoh Co
FR2274380A1 (en) * 1974-06-11 1976-01-09 Fagersta Ab METHOD AND APPARATUS FOR THE PRODUCTION OF INGOTS WITH LOW CROSS SURFACE AREA

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR488767A (en) * 1915-02-18 1918-11-14 Benjamin Talbot Improvements in the processing of iron and steel ingots
GB278032A (en) * 1926-04-29 1927-09-29 Charles Algernon Parsons Improvements in and relating to the casting of ingots
FR2236583A1 (en) * 1973-07-10 1975-02-07 Aikoh Co
FR2274380A1 (en) * 1974-06-11 1976-01-09 Fagersta Ab METHOD AND APPARATUS FOR THE PRODUCTION OF INGOTS WITH LOW CROSS SURFACE AREA

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2818264A1 (en) * 2013-06-24 2014-12-31 Precicast Bilbao, S.A. Method for melting an alloy part

Also Published As

Publication number Publication date
JPS5522490A (en) 1980-02-18
FR2432351B1 (en) 1982-04-23

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