US 2023/0398595 A1Published application

Insulating die plate, forging press and ceramic insulating body

AssigneeSMS group GmbH

InventorsAli ZAFARI, Andreas BRENNER, Stephan ACKERMANN, Axel ROSSBACH, Erdem KARAKAS

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Abstract

An insulating die plate includes two parallel end plates and an insulating layer arranged therebetween which includes ceramic insulating bodies. An insulating body plane parallel to the end plates is defined for the insulating layer. Intermediate spaces are arranged on the insulating body plane between the insulating bodies. A total insulating layer area includes at least surface insulating body portions and surface intermediate space portions. In each section through the insulating bodies parallel to the insulating body plane, an insulating body surface portion in the total insulating layer area is at least 50%, the insulating bodies are symmetrically formed, with the top side equal to the bottom side of the insulating body and each insulating body designed as a plate having a height and a maximum width at least 2.5 times wider than the height of the insulating body; and/or the insulating bodies are anisotropically shaped.

Claims17

Dependent claims

An insulating die plate (1) comprising two end plates (27, 28, 37, 38) arranged in parallel with one another and comprising an insulating layer (21, 31) arranged between the two end plates (27, 28, 37, 38), which comprises ceramic insulating bodies (40), wherein an insulating body plane (22, 32) arranged at least parallel to the end plates (27, 28, 37, 38) is defined for the insulating layer (21, 31), wherein the insulating bodies (40) are arranged spaced apart next to one another on the insulating body plane (22, 32), whereby intermediate spaces (41) are arranged on the insulating body plane (22, 32) between the insulating bodies (40), wherein a total area of the insulating layer (21, 31) comprises at least surface portions of the insulating bodies (40) and surface portions of the intermediate spaces (41), wherein

(i) in each section through the insulating bodies (40) parallel to the insulating body plane (22, 32), a surface portion of the insulating bodies (40) in the total area of the insulating layer (21, 31) is at least 50%, the insulating bodies (40) are symmetrically formed, wherein the top side of the insulating body (40) is equal to the bottom side of the insulating body (40) and all insulating bodies (40) are designed as a plate, wherein the plates have a height (42) and a maximum width (43) and are designed to be wider than their height, wherein the maximum width of the insulating body (40) is at least 2.5 times the height of the insulating body (40);
and/or
(ii) the insulating bodies (40) are anisotropically shaped.

A forging press (10) for pressing a semi-finished product (15) in one pressing direction (17) with a press tappet (12) and with at least one drawbar (14) and with at least one upper die (20) and one lower die (30), wherein each of the punches (20, 30) comprises a cold die part (25, 35) and a hot die part (26, 36), wherein each of the punches (20, 30) comprise an insulating layer (21, 31) arranged perpendicular to the pressing direction (17), wherein the insulating layer (21, 31) is respectively arranged between the cold die part (25, 35) and the hot die part (26, 36), wherein each of the insulating layers (21, 31) is arranged between a cold cover side (23, 33) situated on the side of the cold die part (25, 35) and a hot cover side (24, 34) situated on the side of the hot die part (26, 36), wherein the insulating layer (21, 31) comprises ceramic insulating bodies (40), wherein an insulating body plane (22, 32) arranged at least parallel to the end plates (27, 28, 37, 38) is defined for the insulating layer (21, 31), wherein the insulating bodies (40) are arranged spaced apart next to one another on the insulating body plane (22, 32), whereby, on the insulating body plane (22, 32) between insulating bodies (40), intermediate spaces (41) are formed, wherein a total area of the insulating layer (21, 31) comprises at least surface portions of the insulating bodies (40) and surface portions of the intermediate spaces (41), wherein

(i) a plurality of insulating bodies (40) are arranged in each insulating body plane (22, 32), wherein, in each section through the insulating bodies (40) parallel to the insulating body plane (22, 32), a surface portion of the insulating body (40) in the total area of the insulating layer (21, 31) is at least 50%, the insulating bodies are symmetrically formed, wherein the top side of the insulating body is equal to the bottom side of the insulating body and all insulating bodies are designed as plates, wherein the plates (42) have a height and a maximum width (43) and are wider than their height, wherein the maximum width of the insulating body (40) is at least 2.5 times the height of the insulating body (40);
and/or
(ii) the insulating bodies (40) are anisotropically shaped.

Dependencies are inferred from the claim text.