Global Patent Index - EP 0579702 B1

EP 0579702 B1 19941207 - DYNAMIC CASTING SPEED CONTROL METHOD FOR A SKINNING OVER CYCLE FLOLLOWING STICKING IN A CONTINUOUS STEEL CASTING PROCESS.

Title (en)

DYNAMIC CASTING SPEED CONTROL METHOD FOR A SKINNING OVER CYCLE FLOLLOWING STICKING IN A CONTINUOUS STEEL CASTING PROCESS.

Title (de)

DYNAMISCHE KONTROLLE DER ABZUGSGESCHWINDIGKEIT NACH DEM ANHAFTEN DES STRANGES BEIM STRANGGIESSEN.

Title (fr)

PROCEDE DE CONTROLE DYNAMIQUE DE LA VITESSE D'EXTRACTION LORS D'UN CYCLE DE CICATRISATION APRES COLLAGE, DANS UN PROCESSUS DE COULEE CONTINUE D'ACIER.

Publication

EP 0579702 B1 19941207

Application

EP 92908866 A 19920330

Priority

  • FR 9104356 A 19910410
  • FR 9200286 W 19920330

Abstract (en)

[origin: WO9218273A1] When skin sticking is detected in an ingot mould, the casting speed undergoes a cycle consisting of a deceleration ramp from the normal production speed to a reduced speed, a skinning over plateau and an acceleration ramp from the reduced speed back up to the normal production speed, whereafter the ferritic potential (PF) of the cast steel is determined, the slopes (D, A) of one of the two ramps are determined according to said ferritic potential, and the length (tr?) of the skinning over plateau is determined according to the difference between the liquidus and solidus temperatures of the cast steel.

IPC 1-7

B22D 11/20

IPC 8 full level

B22D 11/20 (2006.01)

CPC (source: EP US)

B22D 11/20 (2013.01 - EP US)

Citation (examination)

LIGHT METALS, A PUBLICATION OF THE METALLURGICAL SOCIETY OF AIME 1985, pages 1285-1299; S.J. BERCOVICI: 'Optimisation of 3C roll caster by automatic control' see page 1293, lines 30-45

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE

DOCDB simple family (publication)

WO 9218273 A1 19921029; AT E115019 T1 19941215; AU 1646492 A 19921117; AU 651883 B2 19940804; CA 2108127 A1 19921011; CN 1046875 C 19991201; CN 1065613 A 19921028; DE 69200848 D1 19950119; DE 69200848 T2 19950504; EP 0579702 A1 19940126; EP 0579702 B1 19941207; ES 2068032 T3 19950401; FI 934393 A0 19931006; FI 934393 A 19931006; FI 97782 B 19961115; FI 97782 C 19970225; FR 2675062 A1 19921016; FR 2675062 B1 19930716; IE 921133 A1 19921021; KR 100230888 B1 19991115; MX 9201617 A 19921001; PT 100355 A 19940429; TW 206171 B 19930521; US 5449034 A 19950912; ZA 922532 B 19921230

DOCDB simple family (application)

FR 9200286 W 19920330; AT 92908866 T 19920330; AU 1646492 A 19920330; CA 2108127 A 19920330; CN 92102615 A 19920409; DE 69200848 T 19920330; EP 92908866 A 19920330; ES 92908866 T 19920330; FI 934393 A 19931006; FR 9104356 A 19910410; IE 921133 A 19920409; KR 930702839 A 19930922; MX 9201617 A 19920408; PT 10035592 A 19920408; TW 81103352 A 19920429; US 12919393 A 19931008; ZA 922532 A 19920408