Shaped part
A molding and raw material technology, applied in fuel cell parts, final product manufacturing, climate sustainability, etc., can solve the problems of high cost and unsatisfactory component homogeneity, and achieve the effect of small density gradient
Active Publication Date: 2014-07-02
PLANSEE SE
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The disadvantage is that this type of pressing is expensive and the homogeneity of the components is not very good
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The simulation calculations for investigating the compression behavior in the interface according to the invention and in the interface of the prior art were carried out by FEM (Finite Element Method) simulation with the aid of a press / press / cap model. As the basic data of the two simulations, the characteristic parameters of the alloy raw material powders related to such as cohesion and internal friction angle, and the dynamic description of the pressing process, these characteristic parameters are consistent for the two simulations, the raw material powder of the alloy contains 95 wt % chromium and 5% by weight of a prealloy consisting of iron containing 0.8% by weight of yttrium.
[0024] In addition, the table below refers to different geometrical features.
[0025]
[0026] The simulation results obtained from this figure 1 and figure 2 shown in the same gray scale. This comparison shows that, figure 1 The geometric features of the present invention in unst...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The shaped part produced by pressing and sintering a pulverulent starting material, comprises a disk-or plate-shaped basic body (1) formed with knobs- and / or ridge-shaped elevations (2) having a height h and with two inclined side flanks, respectively, in cross-section, where the side flanks are extended from an end contour (3) of the elevation over rounded corner (4, 4') with a radius r and / or r' directly or flows over straight sections (5, 5') lying in between into curve-shaped sections having a radius R, R' respectively, where the curve-shaped sections are passed into the surface contour. The shaped part produced by pressing and sintering a pulverulent starting material, comprises a disk-or plate-shaped basic body (1) formed with knobs- and / or ridge-shaped elevations (2) having a height h and with two inclined side flanks, respectively, in cross-section, where the side flanks are extended from an end contour (3) of the elevation over rounded corner (4, 4') with a radius r and / or r' directly or flows over straight sections (5, 5') lying in between into curve-shaped sections having a radius R, R~ respectively, where the curve-shaped sections are passed into the surface contour of the basic body. The straight sections and / or the rounded corner is provided in a direct transition into the curve-shaped sections, where the tangent comprises an angle of inclination alpha and alpha ', to the surface contour in an area of 95-110[deg] C at the point of the transition. The radius R and R' lies in the area of 0.3-1 mm and the height is dimensioned so that ratio R: h and / or R': h lies in the area of 0.7-1. The shaped part of the interconnector or the end plate is a fuel cell stack. The pulverulent starting material is an alloy with chromium content of 20 wt.%, where the pulverulent starting material consists of chromium (95 wt.%) and yttrium (5 wt.%) of a prealloy of iron with 0.5-0.8 wt.%.
Description
technical field [0001] The invention relates to a shaped part produced by pressing and sintering powder-like raw materials, consisting of a sheet or plate-shaped matrix with a large number of block-shaped and / or plate-shaped protrusions with a height h and at The cross-section has two oblique sides, which lead from the end contour of the raised part via a rounded corner with radius r or r', directly or via a straight line section in between to the radius is the curved section of R, R' that transforms into the surface profile of the substrate, where the straight section, or the tangent at the transition point in the direct transition from the rounded corner to the curved section, has a relative Inclination angle α or α' of the surface profile in the range 95° to 135°. Background technique [0002] Documents AT GM 6.260 or US 2008 / 0199738, for example, describe such a molded part which is formed as an interface or terminal plate of a fuel cell stack. [0003] The interface o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/02
CPCB22F5/08B22F5/06C22C33/0285B22F3/02C22C27/06H01M8/0206Y02E60/50H01M8/021B22F3/12B22F5/00C22C33/0207Y02P70/50
Inventor 马尔科·布兰德纳斯塔凡·格尔佐斯科韦茨沃尔夫冈·克劳斯勒亚历山大·洛伊普雷希特安德列亚斯·韦斯库托尼斯
Owner PLANSEE SE