High temperature Solutions – Foundry

Green Sand Bonding Technologies

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GIFA


Visit IMERYS at GIFA to learn how to reclaim active clay and lustrous carbon from dust collector materials with RIKO®, to replace 20-30% of the foundry total need for bentonite. RIKO improves casting quality, reduces emission and cost.

June 25 – 29 2019, Hall 12 Stand C34

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News

RIKO© - Recovery of Bentonite & Carbon From Foundry Dust
A Unique Process Technology


Foundry Dust Collection and the Loss of Beneficial Materials

Bentonite and carbon have long been used as key components in the green sand casting process. In 2018 United States Foundry Industry consumed approximately 700,000 tons of bentonite and carbon.

Silica sand has been used in the green sand process for hundreds of years. Recently the United States Environmental Protection Agency instituted tighter regulations on the Permissible Exposure Limits for silica sand dust. This has meant an increased focus on, and need for additional ventilation and dust collection. While this ventilation and dust collection reduces the amount of fine silica sand, it extracts other useable materials, such as active bentonite and carbon.

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Preventing Casting Defects is Easy With IMQUICK®


Water is THE essential component in the activation of bentonite used to bond in the green sand process. While necessary to activate the clay, free moisture, not tied up in the bentonite platelet structure is the enemy of metal. If it exists, the free moisture can cause significant casting defects.

IMQUICK is a patented, bentonite based formulation which includes finely sized industrial mica for:

  • Better sand flowability in the molding process
  • Better compaction
  • More consistent mold hardness – without the need for additional moisture

In fact, if reduced moisture is your goal, it’s possible to run lower moisture percentages with IMQUICK versus most conventional premix formulas.

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