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Green Sand Metalcasting Foundry News

"E" - Glossary of Foundry Additives including Ethylene Glycol

Posted by Hill and Griffith Company on Jan 23, 2018 12:51:36 PM

E - Foundry Additives Glossary

ELAINE OIL (See: OLEIC ACID) ELECTROLYTE
This term is commonly applied to substances which conduct elec­tricity by transfer of ions either in the molten state or in solution. The term is not applied to metals in elementary form. The term, "electro­lyte" is generally applied to the conducting solution itself. The most important electrolytes are the solutions of salts, acids or bases usually dispersed or suspended in water. 

EMULSIFIED OIL (See: CORE OILS)
A colloidal system whereby a drying oil is intimately combined with water by means of an alkali-metal-soap as the emulsifying agent. Some core oils are emulsified for foundry use.

ESSENCES (See: ETHYL ALCOHOL) ESSENTIAL OIL (See: OILS)

ESTER GUM (See: CORE BINDERS-GUMS)
Is composed of glycerine and rosin and used in core binders, mold and core coatings.

ETHANOL (See: ETHYL ALCOHOLS)

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Tags: Metal Casting, Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Metal Casting Supplies, Foundry Supplies, Green Sand Metal Casting, Green Sand System, Green Sand Metalcasting, Green Sand Foundry Premix, Foundry Additives Glossary, Ethylene Glycol

"C" - Glossary of Foundry Additives (including core pastes)

Posted by Hill and Griffith Company on Dec 19, 2017 4:40:21 PM

C - Foundry Additives Glossary

CALCINED CERAMIC GROG (See: BRICK, CRUSHED-CHAM­OTTE-GROG)
Many finely ground, calcined, ceramic, grog materials are used in compounds serving the foundry. A few are ground firebrick, kya­nite, magnesite, mullite, sillimanite, quartz, ganister, flint, fireclay, chromite, olivine and many other refractory products. They are graded and used in numerous core compounds, mold compounds, sand mixtures, and for special refractory purposes throughout the foundry.

CALCITE (See: LIME-LIMESTONE)
Calcite is a calcium carbonate, or limestone ( CaC03 ). Its specific gravity is 2.72 and it has a Mob's Hardness of three (3). Limestone is not usually added to foundry sands, as it is considered a contaminant in foundry sand mixtures. Calcite is usually deposited from the residue of marine shell fragments. It is added to certain refractories and a few coatings to encourage fusion. Calcite is not generally considered a foundry sand additive, but ground limestone which has been saturated with stearic acid or a wax is used as a dry parting compound. Also it is used with saturated stearate and hexa in shell molding.

CALCIUM ALGINATE (See: ALGAE)
Calcium alginate (a hydrophyllic colloid from treatment of marine algae) holds some unusual benefits for foundry sand. It improves fluidity and flowability, carbonizes leaving practically no ash, prevents loss of moisture during storage and minimizes dust. About 2 % algin­ate, 4% bentonite, 2 % temper water, in an AFS Gr. Fn. 65 silica sand mixture increases permeability from 80 to 108 and boosts shear strength. It also benefits core sand mixtures in amounts up to 0.05% for oil sand cores, 0.3 to 0.8% for CO2-sodium silicate core mixtures and 1 % in a facing sand mixture.

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Tags: Metal Casting, Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Metal Casting Supplies, Foundry Supplies, Green Sand Metal Casting, Green Sand System, Green Sand Metalcasting, Green Sand Foundry Premix, Foundry Additives Glossary

Metal Casting Foundry Supplies

Posted by Hill and Griffith Company on Dec 12, 2017 3:33:07 PM

New Brochure: Casting Solutions - Hill and Griffith's Green Sand Foundry Supplies help achieve the E.P.A.'s M.A.C.T. standards and reduce Benzene Emissions.

In 1896 when John Hill founded the Hill and Griffith Company, the concept of quality was adopted. He stated, "Hill and Griffith feels that the integrity of the company must be represented in the metal casting foundry supplies, products and services bearing our names and labels."

Today, this tradition still lives on.

Since it was founded, The Hill and Griffith Company has been recognized for many firsts. We have contributed form mold release agents, and metal and concrete casting lubricants to the industry. With ongoing investment in research and development, Hill and Griffith has achieved unparalleled leadership with the introduction of new technologies, as well as quality supplies.

Mission Statement
Our mission is to continually improve the company’s products and services in a manner that will meet or exceed our customers’ needs and expectations.

CORPORATE OFFICE
1085 Summer Street, Cincinnati, OH 45204
800-543-0425 • P: 513-921-1075 • 
F: 513-921-9180

INDIANAPOLIS MANUFACTURING & FACILITY
3637 Farnsworth Avenue, Indianapolis, IN 46241
800-428-3102 • P: 317-241-9233 • 
F: 317-248-7725

Warehouse Locations:
Cincinnati, OH
Indianapolis, IN
Hueytown, AL
Charlotte, NC
Delafield, WI
Milwaukee, WI

 

Download brochure

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Tags: Metal Casting, Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Metal Casting Supplies, Foundry Supplies, Green Sand Metal Casting, Green Sand System, Green Sand Metalcasting, Green Sand Foundry Premix, Foundry Additives Glossary, Aluminum Metalcasting Guide

"B" - Glossary of Foundry Additives

Posted by Hill and Griffith Company on Dec 5, 2017 3:07:16 PM

B - Foundry Additives Glossary

BAGASSE (See: CELLULOSE-WOOD FLOUR)
Is the residue left after grinding sugar cane and extracting the juice. The shredded fibers are largely used as a fuel, but it has found various uses as a cellulose material in the foundry sand mixtures. Bagasse has been substituted for wood flour and other cellulose addi­tives, but it is hygroscopic, and many foundries have frowned upon its use, It is most difficult to produce bagasse in a commercial form so as to economically prepare it for the foundry market. Unless a foundry is near a ready source of bagasse, the economics make it practically prohibitive to compete against commercially accepted cellulose additives.

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Tags: Metal Casting, Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Metal Casting Supplies, Foundry Supplies, Green Sand Metal Casting, Green Sand System, Green Sand Metalcasting, Green Sand Foundry Premix, Foundry Additives Glossary

Gift idea for your favorite metalcaster - Aluminum Metalcasting Guide

Posted by Hill and Griffith Company on Nov 28, 2017 11:34:41 AM

This holiday season, get the metalcaster on your list the ultimate aluminum resource. Aluminum Casting Technology, 3rd Edition, is available for purchase in the AFS Store.

Loaded with 554 pages of colorful charts, graphics, and text, this book is a favorite among metalcasters. The updated edition builds on previous versions with five brand new chapters and seven upgraded ones. New chapters include:
 
• Casting Process Simulation
• Solidification
• Semi-Solid Mold Processes
• Metal Matrix Composites
• Additive Manufacturing & Rapid Prototyping

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Tags: Metal Casting, Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Metal Casting Supplies, Foundry Supplies, Green Sand Metal Casting, Green Sand System, Green Sand Metalcasting, Green Sand Foundry Premix, Foundry Additives Glossary, Aluminum Metalcasting Guide

"A" - Foundry Additives Glossary

Posted by Hill and Griffith Company on Nov 21, 2017 3:54:41 PM

A - Foundry Additives Glossary

ABSOLUTE ALCOHOL (See: ALCOHOL-ETHYL ALCOHOL)

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Tags: Metal Casting, Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Metal Casting Supplies, Foundry Supplies, Green Sand Metal Casting, Green Sand System, Green Sand Metalcasting, Green Sand Foundry Premix, Foundry Additives Glossary

Green Sand Foundry Premix - Minor Ingredients

Posted by Hill and Griffith Company on Nov 14, 2017 11:00:27 PM

The term "Minor Ingredient" does not adequately represent the performance of the materials that are added to a Premix!

Consider the application of Soda Ash (Sodium Carbonite) in Green Sand Foundry Premix Technology. The addition of 0.5% Soda Ash into a Premix will reduce agglomerated sand grains, balance the pH and improve the Bentonites' ability to mull into a Green Sand system. However, the addition of 5.0% Soda Ash will destroy a Green Sand System. Since the addition of 0 to 5.0% of a material into a Premix Formula is considered a "Minor Ingredient", the addition of too much Soda Ash will be catastrophic. Therefore, the term "Minor Ingredient" is truly a mis-representation of the value of the material.

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Tags: Metal Casting, Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Metal Casting Supplies, Foundry Supplies, Green Sand Metal Casting, Green Sand System, Green Sand Metalcasting, Green Sand Foundry Premix

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