Global Patent Index - EP 2289694 A4

EP 2289694 A4 20110518 - PRESS-CURE MOLD COOLING DEVICE

Title (en)

PRESS-CURE MOLD COOLING DEVICE

Title (de)

FORMKÜHLUNGSVORRICHTUNG MIT DRUCKHÄRTUNG

Title (fr)

DISPOSITIF DE REFROIDISSEMENT DE MOULE DE VULCANISATION SOUS PRESSE

Publication

EP 2289694 A4 20110518 (EN)

Application

EP 09800584 A 20090724

Priority

  • KR 2009004133 W 20090724
  • KR 20080072979 A 20080725

Abstract (en)

[origin: EP2289694A2] Disclosed is a press-cure mold cooling device with an improved structure to be able to slow down the cooling rate of a trim cut during a pressing process of a steel sheet blank in the production of parts for press cure. The press-cure mold cooling device according to the present invention comprises: a mold for press cure, which includes an upper mold and a lower mold, each having a cooling water supply section therein for press forming of a steel sheet blank by upward and downward stroking; and cooling water temperature regulation means disposed between contact surfaces, the contact surfaces being respectively formed between the cooling water supply sections in the upper and lower molds and the steel sheet blank, so as to regulate the temperature of cooling water being delivered to the steel sheet blank. Accordingly, the present invention is advantageous in that the cooling rate transmitted from the cooling water supply sections of the upper and lower molds can be delayed to prevent the trim cut from being quenched and thus being transformed into a martensite texture having high hardness, so that the wear on a trimming mold during a trimming process may be reduced, which in turn improves endurance and increases productivity.

IPC 8 full level

B30B 15/34 (2006.01); B21D 37/16 (2006.01); C21D 1/673 (2006.01)

CPC (source: EP KR US)

B21D 37/16 (2013.01 - EP KR US); B30B 15/064 (2013.01 - EP US); B30B 15/34 (2013.01 - KR); C21D 1/673 (2013.01 - EP US); C21D 2221/00 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DOCDB simple family (publication)

EP 2289694 A2 20110302; EP 2289694 A4 20110518; EP 2289694 B1 20130109; JP 2011523375 A 20110811; JP 5403768 B2 20140129; KR 101149233 B1 20120529; KR 20100011958 A 20100203; US 2011068519 A1 20110324; WO 2010011103 A2 20100128; WO 2010011103 A3 20100514

DOCDB simple family (application)

EP 09800584 A 20090724; JP 2011511523 A 20090724; KR 2009004133 W 20090724; KR 20090068082 A 20090724; US 95585410 A 20101129