Tklfserve
Mechanical
- Mar 20, 2008
- 30
Has anybody had any experience, with Designing the 'Perfect Pouring Basin'? Current thinking tells us that the offset 'wier' or step design is the best.
however when dealing with the aspect of preventing splash back when a ladle has gets too high above a mould. Say 500mm or 1½' a undercut design seems better, and it works well in practice at preventing kick back see [ Castings Practice page 32 Figure 2.12]
However in making this shape [undercut edged basin] results in a flat bottom to the basin due to moulding process, and apparantly this could result in a strong horizontial jet flow componet, going over the sprue entrance and possibly reducing the discharge co-efficient by 50%
My question is, does this componet reduce when the basin start to fill up with metal say at about 50-70 mm depth?
or does it still persist, after say 1 second.
Has anybody modelled this?
Thanks...
however when dealing with the aspect of preventing splash back when a ladle has gets too high above a mould. Say 500mm or 1½' a undercut design seems better, and it works well in practice at preventing kick back see [ Castings Practice page 32 Figure 2.12]
However in making this shape [undercut edged basin] results in a flat bottom to the basin due to moulding process, and apparantly this could result in a strong horizontial jet flow componet, going over the sprue entrance and possibly reducing the discharge co-efficient by 50%
My question is, does this componet reduce when the basin start to fill up with metal say at about 50-70 mm depth?
or does it still persist, after say 1 second.
Has anybody modelled this?
Thanks...
