EP 2907881 A3 20150930 - Thermoforming line and method for the preparation of thermoformed sheet metal products
Title (en)
Thermoforming line and method for the preparation of thermoformed sheet metal products
Title (de)
Warmformlinie und Verfahren zur Herstellung von warmumgeformten Blechprodukten
Title (fr)
Ligne moulée à chaud et procédé de fabrication de produits de tôle moulés à chaud
Publication
Application
Priority
DE 102014101539 A 20140207
Abstract (en)
[origin: CN104894352A] A thermoforming line for the production of hot-formed and press-hardened sheet metal products sinkers 6 includes a heating station (1) and a forming station (2). The heating station (1) has on a lower die (3) and an upper tool (4), between which a metal plate (6) is received for heating. The heating or Heating a metal plate (6) in the heating station (1) is carried out by indirect resistance heating. The heat is not included in the metal plate (6) generates and passes through heat conduction in the metal plate (6) itself. For this purpose, the lower tool (3) and / or the upper tool (4) on an electrical resistance heater (7) with at least one surface heating element. According to the invention, the surface heating element is a heating plate (8) having a disc body (9) of an electrically conductive material, the plate body (9) is designed as a heating conductor (11). To this end, the plate body (9) is slotted and example provided with a slot (10), which extends over the thickness d of the plate body (9).
IPC 8 full level
B21D 37/16 (2006.01); C21D 1/34 (2006.01); C21D 1/673 (2006.01); C21D 9/00 (2006.01); H05B 6/00 (2006.01)
CPC (source: EP US)
B21D 22/022 (2013.01 - EP US); B21D 22/208 (2013.01 - EP US); B21D 37/16 (2013.01 - EP US); B21D 43/00 (2013.01 - US); C21D 1/06 (2013.01 - US); C21D 1/34 (2013.01 - EP US); C21D 9/0068 (2013.01 - EP US); C21D 9/46 (2013.01 - EP US); H05B 3/24 (2013.01 - US); C21D 1/673 (2013.01 - EP US); C21D 2221/00 (2013.01 - EP US)
Citation (search report)
- [A] DE 102011102167 A1 20121122 - VOLKSWAGEN AG [DE]
- [AD] DE 102012110649 B3 20131114 - BENTELER AUTOMOBILTECHNIK GMBH [DE]
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2907881 A2 20150819; EP 2907881 A3 20150930; EP 2907881 B1 20190424; EP 2907881 B2 20211110; CN 104894352 A 20150909; CN 104894352 B 20180424; CN 108486325 A 20180904; DE 102014101539 A1 20150813; DE 102014101539 B4 20160616; DE 102014101539 B9 20160811; US 2017066030 A1 20170309
DOCDB simple family (application)
EP 15154074 A 20150206; CN 201510172278 A 20150206; CN 201810242572 A 20150206; DE 102014101539 A 20140207; US 201514616340 A 20150206