International Trade Fair for Die Casting: Technology, Processes, Products

18 - 20 January 2022 // Nuremberg, Germany

Posting print layout

What information should be shown in the print layout?

Create print layout
Exhibitors & Products EUROGUSS 2022
Zoom Image LOGO_Products for chemical melt treatment of aluminium alloys

Products for chemical melt treatment of aluminium alloys

LOGO_Products for chemical melt treatment of aluminium alloys

Products for chemical melt treatment of aluminium alloys

Request information Request information

Contact us

Please enter your personal information and desired appointment. You can also leave us a message.

Your personal information

Your message for us

Desired appointment during the exhibition

* Compulsory fields you must fill in.

Information on data protection can be found here.

Send
Your message has been sent.

You do not have a registration yet? Register now and use all advantages of the Exhibitors and Products Database, the supporting programme and the TicketShop.

An error has occurred.

Aluminium foundries deal with a huge number of different alloys and use various processes to produce a variety of castings. To acknowledge this high diversity, Foseco has developed a wide range of products for the melt treatment of aluminium alloys. A team of technical experts who can advise and help you to develop an optimised process supports all Foseco products.

Melt treatment

Melt treatment is an important step in foundries to ensure a high casting quality. The melt shop has to supply aluminium in a defined composition at required temperature but also at the right purity and hydrogen level. The degree of grain refining and modification are additional parameters to characterise a melt. In recent years economical aspects have become more and more important; the need to reduce metal content in the dross has increased due to the high price of the raw material and energy on the world market. The issue of refractory or crucible life in contact with fluxes began to be questioned and the chemical product development has been focused on this subject as well.

Grain refining

  • In-situ formation of nuclei, such as TiB2, in the melt
  • Fine grain structure improves the solidified structure and reduces shrinkage porosity
  • Grain refining improves mechanical properties of the casting, such as elongation

Modification

  • Improvement in hot tear resistance and feeding
  • Reduction in shrinkage porosity
  • Sodium is the most effective modification agent

Cleaning, degassing and covering

  • Cleaning fluxes remove oxides and other non-metallic inclusions from the melt
  • Drossing fluxes provide a dry dross with a low metal content
  • Covering fluxes protect the melt against oxidation and hydrogen pick-up
  • A low hydrogen content in the melt reduces gas porosity in the casting
  • Removal of impurities improves mechanical properties and avoids distortions during heat treatment and machining

COVERAL granular fluxes are an environmentally friendly range of fluxes for melt treatment of aluminium alloys. Powder fluxes possess certain disadvantages such as dust generation during application, toxic emissions, and problems of inconsistent efficiency due to their morphology. In order to overcome these disadvantages, fluxes in dust free granular form have been developed.

Applications

  • Grain refining - NUCLEANT
  • Sodium modification - SIMODAL
  • Cleaning - COVERAL
  • Drossing / covering - COVERAL
  • Element removal - EPURAL
  • Hydrogen addition - DYCASTAL

Features and benefits

  • No dust
  • Low addition rates
  • Easily applied
  • Low fume
  • All alloys and furnaces

Comparison of powder and granular flux cleaning efficiency

COVERAL powder addition rate: 0.35% of melt weight

COVERAL granular addition rate: 0.10% of melt weight

top

The selected entry has been placed in your favourites!

If you register you can save your favourites permanently and access all entries even when underway – via laptop or tablet.

You can register an account here to save your settings in the Exhibitors and Products Database and as well as in the Supporting Programme.The registration is not for the TicketShop and ExhibitorShop.

Register now

Your advantages at a glance:

  • Advantage Save your favourites permanently. Use the instant access – mobile too, anytime and anywhere – incl. memo function.
  • Advantage The optional newsletter gives you regular up-to-date information about new exhibitors and products – matched to your interests.
  • Advantage Call up your favourites mobile too! Simply log in and access them at anytime.