Metalworking Fluids, Metalworking supplies and products Environmentally Clean Foundry Supplies Griflube hydraulic fluids and lubricants - metalworking supplies and products
Connect with Hill and Griffith Foundry Casting, Concrete Casting, and DieCasting Supplies on Facebook
Connect with Hill and Griffith Foundry Casting, Concrete Casting, and DieCasting Supplies on Twitter
Hill and Griffith Foundry Casting, Concrete Casting, and DieCasting Supply Videos on Youtube
Connect with Hill and Griffith Foundry Casting, Concrete Casting, and DieCasting Supplies on Linkedin

Green Sand Metalcasting Foundry News

Molten Metal Slag Coagulant for Iron, Brass and Bronze Metalcasting

Posted by Hill and Griffith Company on Jun 27, 2017 3:10:59 PM

Hill and Griffith’s Slagone is a perlite material used as a slag coagulant in a molten metal application. Slagone is typically used with Iron, Brass and Bronze metals.

Description

Perlite is a generic term for a naturally occurring siliceous volcanic rock. The distinguishing feature of perlite is that when it is heated to its softening range, it expands 4 to 20 times its original volume. This expansion is due to a small amount of water contained in the crude perlite rock. As the ore heats, the water vaporizes and pops allowing the expansion. Any slag present on the molten metal will adhere to the expanded perlite and continue to float. The combined slag/perlite from the molten metal slag coagulant can then be removed from the molten metal in large pieces, resulting in clean molten metal for the casting process.

BMW-Engine-Block-Foundry-Casting-Method-2 copy.jpg
 
Video and images from, "BMW Engine Block Foundry" from Car TV.
 
 

Elemental Analyses: (typical)

Silicon 33.8
Aluminum 7.2
Potassium 3.5
Sodium 3.4
Iron 0.6
Calcium 0.6
Magnesium 0.2
Trace Elements 0.2

 

BMW-Engine-Block-Foundry-Casting-Method-6 copy.jpg

Particle Size Distribution: (typical)

Plus 8 screen 32%
Plus 12 screen 47%
Plus 16 screen 15%
Plus 20 screen 2%
Beyond Plus 20 screen 2%


BMW-Engine-Block-Foundry-Casting-Method-10 copy.jpg

Appearance:

From transparent light gray to glossy black

BMW-Engine-Block-Foundry-Casting-Method-12 copy.jpg

(Above picture – Licensed By Creative Commons Via Wikimedia – Original Link)

Application

Slagone should be generously distributed on top of a full ladle of molten metal. Once the perlite has expanded, a color change will occur as the Slagone will turn to a white color. At this point, the material and slag should be removed from the metal.

Slagone can be used on a full ladle or added during the ladle filling process.

If an insulating cover is desired, Slagone should be applied to the ladle or furnace at a thickness of at least 3 inches.

Caution

Slagone is a material that has the potential to absorb water. This is a safety concern in that if applied to molten metal, excess steam could be generated. Slagone should be stored in a dry environment.

 

Download Printable Document (MS Word .doc) by Clicking Here


Hill and Griffith Customer Service

The Hill and Griffith Company's green sand metalcasting foundry supplies help achieve the EPA's M.A.C.T. standards and reduce Benzene emissions. Our variety of environmentally sound release agents, coatings, partings, lubricants, core oils and specialty products will help you meet your metal casting's needs. We're known for our hands on approach. Let us visit your plant and recommend products that suit your needs.

Hill and Griffith Samples

Product Samples

We are pleased to provide samples in quantities large enough to allow you to "try before you buy."
Contact Us »

 

Hill and Griffith Customer Service

Technical Services & Support

On-site casting defect investigations, product testing, machine start-ups and much more. Also, lab facilities are available to provide testing upon request.
Contact Us »

Bulletins and Technical Papers for Metal Casting Products

 

Tags: Green Sand Casting Products, Green Sand Foundry Supply, foundry supply, foundry supplies, green sand casting, Green Sand Metal Casting, Molten Metal Slag Coagulant