Rupture device and method for producing a rupture device
In order to provide a rupture device which can be produced as simply as possible and which enables a controlled opening of a container in the event of an overpressure, it is proposed that the rupture device comprise a wall component which has at least one rupture web, wherein the at least one rupture web has a thickness varying in the longitudinal direction, and/or wherein the at least one rupture web is formed by at least one first depression, which is arranged on a first side of the wall component, and at least one second depression, which is arranged on a second side, facing away from the first side, of the wall component.
1 . A rupture device comprising a wall component which has a rupture surface and at least one rupture web which surrounds the rupture surface along a longitudinal direction of the at least one rupture web, wherein the at least one rupture web has a thickness varying in the longitudinal direction along at least part of the rupture web, and wherein the at least one rupture web is formed by at least one first depression, which is arranged on a first side of the wall component, and at least one second depression, which is arranged on a second side, facing away from the first side, of the wall component, wherein the at least one first depression and/or the at least one second depression are formed by stamping.
2 . The rupture device according to claim 1 , wherein the at least one first depression and the at least one second depression are formed by said stamping.
3 . The rupture device according to claim 1 , wherein a part of the at least one rupture web or the entire at least one rupture web forms a predetermined breaking point.
4 . The rupture device according to claim 1 , wherein in a cross-section that is taken parallel to a main extension plane of the wall component, the at least one rupture web has a closed shape an extension of which is greater in one spatial direction or by a factor of 2 or more, than in a spatial direction extending perpendicular thereto.
5 . The rupture device according to claim 1 , wherein the at least one first depression and/or the at least one second depression are, in a cross-section taken perpendicular to a main extension plane of the wall component, at least approximately triangular, in the shape of an isosceles trapezoid, or arcuate.
6 . The rupture device according to claim 1 , wherein a ratio of a thickness of the wall component in a region surrounding the at least one rupture web to a thickness of the at least one rupture web is at least about 2:1 and/or at most about 30:1.
7 . The rupture device according to claim 1 , wherein the at least one rupture web is arranged and/or designed in such a way that it breaks and/or tears partially or completely when a critical pressure and/or a critical temperature is exceeded.
8 . The rupture device according to claim 1 , wherein the at least one rupture web has a closed shape which surrounds the rupture surface, or the rupture surface has a thickness which corresponds at least approximately to a thickness of a region, surrounding the at least one rupture web, of the wall component.
9 . The rupture device according to claim 1 , wherein the at least one rupture web has at least one breaking portion and at least one holding portion, wherein a minimum material thickness of the at least one rupture web in the at least one breaking portion is less than a minimum material thickness of the at least one rupture web in the at least one holding portion by at least about 10%, or by at least about 30%.
10 . The rupture device according to claim 1 , wherein a ratio of a thickness of the wall component to a width of the at least one rupture web is at least about 5:1.
11 . The rupture device according to claim 1 , wherein a ratio of a volume formed by the at least one first depression and/or the at least one second depression to a volume of a processed region of the wall component in which the at least one first depression and/or the at least one second depression are arranged is at least about 1:2 and/or at most about 4:1.
12 . The rupture device according to claim 1 , wherein the rupture device comprises several rupture web parts, wherein a rupture web part forms a rupture web edge or a closed edge, and wherein one or more further rupture web parts form separating rupture webs, which divide the rupture surface surrounded by the rupture web edge into several rupture surface parts.
13 . The rupture device according to claim 1 , wherein the at least one rupture web lies at least approximately within a central plane of the wall component.
14 . The rupture device according to claim 1 , wherein an indentation depth in a region of the at least one first depression is at least about 45% smaller than an indentation depth in the region of the at least one second depression.
15 . A method for producing a rupture device, and in particular said rupture device according to claim 1 , wherein the method comprises the following steps:
providing a wall component;
introducing at least one rupture web into the wall component, wherein the at least one rupture web has a thickness varying in the longitudinal direction; and
introducing at least one first depression on a first side of the wall component and introducing at least one second depression on a second side facing away from the first side of the wall component, whereby the at least one rupture web is formed, wherein
the at least one first depression and the at least one second depression are embossed into the wall component, or
an embossing for producing a depression and/or a rupture web is provided only on one of both sides of the wall component,
wherein an embossing tool for producing the rupture element has flattened ends and the thickness varying in the longitudinal direction is formed by the flattened ends.
16 . The method according to claim 15 , wherein there is a gradual change in thickness of the embossing tool in the longitudinal direction at the flattened ends.
17 . The rupture device according to claim 1 , wherein the varying thickness of the at least one rupture web is due to a gradual change in thickness in the longitudinal direction.
18 . The rupture device according to claim 17 , wherein the gradual change in thickness in the longitudinal direction is stepped or continuous.
19 . A rupture device comprising a wall component which has at least one rupture web, wherein the at least one rupture web has a thickness varying in a longitudinal direction, and wherein the at least one rupture web is formed by at least one first depression, which is arranged on a first side of the wall component, and at least one second depression, which is arranged on a second side, facing away from the first side, of the wall component, wherein the at least one first depression and the at least one second depression are formed by stamping, wherein an indentation depth in a region of the at least one first depression is at least about 40% smaller than an indentation depth in the region of the at least one second depression.
20 . The rupture device according to claim 19 , wherein the indentation depth in the region of the at least one first depression is at least about 45% smaller than the indentation depth in the region of the at least one second depression.