Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Influence of filter on the mould filling of aluminium melts in vacuum-sealded moulds
Jönköping University, School of Engineering.
1999 (English)Report (Other academic)
Abstract [en]

The influence of filters on the mould filling behaviour has been investigated by direct observation experiments. The ingate system was moulded in a vertically parted vacuumsealed sand mould. How the filter in general, and how different filter locations, filter coarseness, active filter area and filter length influence the mould filling has been clarified. The direct observation method is a very powerful way to learn how different ingate system designs and filter conditions affect the mould filling. During mould filling the melt behaviour was recorded by a video camera through a glass wall, from which still images are presented. The general effect of filters is a better filling of the ingate system prior to the filter, and a reduction of the melt velocity, which in turn give smoother filling after the filter. Initially, the downsprue is completely filled at an early stage of the filling due to the back-pressure from the filter. The back-pressure is built up as a result of friction in the filter. An early filling of the downsprue prevents the melt from entraining oxide films or air inclusions. Secondly, the filling of the runner is improved by the use of a filter. The better filling of the runner is mainly an effect of the decreased velocity of the melt. The reduction of the melt velocity results in reduced surface turbulence and less splashing. Reduced surface turbulence and splashing of the melt prevents incorporation of oxide films and air in the melt, which has an overall beneficial effect on the quality of the castings. The location of the filter has been found to play an important role in the filling soundness.

Place, publisher, year, edition, pages
Jönköping: Ingenjörshögskolan , 1999. , p. 16
Series
Research Report. School of Engineering, ISSN 1404-0018 ; 1999:6
Keywords [en]
Filter, Ingate system, Mould filling, Filter location
Identifiers
URN: urn:nbn:se:hj:diva-40OAI: oai:DiVA.org:hj-40DiVA, id: diva2:4110
Available from: 2004-11-22 Created: 2004-11-22 Last updated: 2017-08-14

Open Access in DiVA

fulltext(3942 kB)1119 downloads
File information
File name FULLTEXT01.pdfFile size 3942 kBChecksum MD5
bdc78340f2ce76273b9b00853ac11cdaad8283c29813dc2513bae0297b82c64272980ba6
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Svensson, Ingvar L
By organisation
School of Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 1119 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 488 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf