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Green Sand Metalcasting Foundry News

Article Review: "Nine Green Sand Facts to Know"

Posted by Hill and Griffith Company on Jul 16, 2019 11:17:19 AM

Originally published in the Jan/Feb 2019 issue of Metal Casting Design & Purchasing.

The green sand casting process is the most widely-used process for casting ferrous and nonferrous metals. The process has evolved from a manually intensive operation to a highly mechanized and fully automated process that can produce more than 300 molds per hour.

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Tags: Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Green Sand Release Agents, Foundry Supplies, Metal Casting Design & Purchasing

Article Review: "Avoiding (Green Sand Foundry) Coating Related Defects" - Part 2

Posted by Hill and Griffith Company on Jul 9, 2019 12:30:08 PM

Refractory coatings exist to improve casting quality, but when not properly applied, they can cause unwanted characteristics in the final casting.

By Jay Morrison, Carpenter Brothers (Mequon, Wisconsin)

Applying a refractory coating to molds and cores can be a useful step to improve surface finish, control the heat transfer characteristics and thus the microstructure in the casting, improve core venting and prevent certain defects in the casting. As with any process step, proper techniques in applying the coating are paramount in achieving the desired effects and avoiding the cause of new quality issues. Metalcasters can apply coatings to their sand molds in four main ways, all with varying advantages and disadvantages.

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Tags: American Foundry Society, Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Green Sand Release Agents, Foundry Supplies, Modern Casting Magazine

Metal Casting Systems - Choosing Between Nobake and Green Sand

Posted by Hill and Griffith Company on Jul 2, 2019 5:35:28 PM

Navigate the differences in capabilities and cost factors between nobake and green sand metal casting molding processes to ease your sourcing decision.

Opting for a sand casting process over permanent mold, diecasting, or investment casting is step one in sourcing a casting. But sand casting encompasses several methods, each of which carries its own advantages and disadvantages. The two most common processes used are green sand and nobake molding, and sourcing between the two is not always cut and dry.

Forty-two percent of North American metalcasters employ the green sand molding process.  Its popularity stems from its affordability, ability to be used for most metals and flexibility for low to high volume production.

Green sand molding does not hold the tightest tolerances or achieve the finest surface finish of all the casting processes; however, in general, it meets most of the qualifications desired to produce a high quality casting with a good finish.

Nobake sand casting, which is utilized by 40% of North American metalcasters, also is known for its versatility. Virtually all metals can be cast via nobake molding, a wide range of sizes can be produced, and the rigid mold walls provide good dimensional tolerances and control.

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Tags: Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Green Sand Release Agents, Foundry Supplies, Green Sand System, Green Sand Metalcasting, Modern Casting Magazine, Metal Casting Design & Purchasing

Article Review: "Avoiding (Green Sand Foundry) Coating Related Defects"

Posted by Hill and Griffith Company on Jun 25, 2019 5:26:42 PM

Refractory coatings exist to improve casting quality, but when not properly applied, they can cause unwanted characteristics in the final casting.

By Jay Morrison, Carpenter Brothers (Mequon, Wisconsin)


Brushing coating on molds is useful when extra care needs to be given to certain areas.

Applying a refractory coating to molds and cores can be a useful step to improve surface finish, control the heat transfer characteristics and thus the microstructure in the casting, improve core venting and prevent certain defects in the casting. As with any process step, proper techniques in applying the coating are paramount in achieving the desired effects and avoiding the cause of new quality issues. Metalcasters can apply coatings to their sand molds in four main ways, all with varying advantages and disadvantages.

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Tags: American Foundry Society, Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Green Sand Release Agents, Foundry Supplies, Modern Casting Magazine

The Hill and Griffith Company Welcomes Executive-Level Director of Sales

Posted by Hill and Griffith Company on Jun 17, 2019 3:32:13 PM

The Hill and Griffith Company is proud to announce and welcome Ryan Canfield as the company’s Director of Sales & Business Development.

Ryan will be responsible for sales team leadership, driving revenue, contributing to product selection, marketing, as well as general management responsibilities.

Canfield also comes to H&G with 17+ years of experience in sales, technical support, marketing and engineering for the foundry, die cast, precast and prestress concrete industries. Ryan’s proven track record was instrumental in increasing annual company revenue, customer retention and customer satisfaction ratings in previous direct sales and management roles. He also holds an Engineering Degree from Trine University in Angola, IN.

He joins the H&G team from Carbo Ceramics located in Houston, TX.

#marketing #sales #concrete

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Tags: Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Green Sand Release Agents, Foundry Supplies, Ryan Canfield

Outstanding Green Sand Metal Casting Achievement Award for Opener Frame

Posted by Hill and Griffith Company on Jun 11, 2019 5:48:16 PM

Lethbridge Iron Works (Lethbridge, Alberta, Canada) won the award

Material: Ductile iron ASTM A536 65-45-12.
Process: Horizontal green sand.
Weight: 68 lbs.
Dimensions: 36 x 16 x 8 in.
Application: Frame for mounting seeding components.

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Tags: American Foundry Society, Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Green Sand Release Agents, Foundry Supplies, Modern Casting Magazine

Improving Parting Compound Odor and Reducing Flammability

Posted by Hill and Griffith Company on Jun 4, 2019 10:51:41 AM

A patented water-based liquid parting which provides improved odor characteristics and reduced flammability.

The Hill and Griffith Company has developed and patented a unique water-based liquid parting which provides improved odor characteristics and reduced flammability for foundry molding applications.  Flammability has long been a concern in automatic molding operations and with the water-based formula, this concern can be minimized or eliminated.

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Tags: American Foundry Society, Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Green Sand Release Agents, Foundry Supplies, Modern Casting Magazine, Aqua Part

Green Sand Metalcasting Foundry, Sodium Silicate Binders

Posted by Hill and Griffith Company on May 29, 2019 11:36:12 PM

Hill and Griffith Sodium Silicate Binders are formulated with water based solutions of Sodium Silicates and collapsibility agents.

These binders are available in various percentages of carbonaceous materials as well as silica to soda ratios for varied or specific applications. The sand and silicate mixture is hardened by gassing with carbon dioxide (CO2). Molds or cores produced with Silicate binders result in castings with minimal veining, scabbing and penetration. Due to lack of mold wall movement, dimensional accuracy may be improved over some other casting processes.

 

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Tags: Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Foundry Supplies, Sodium Silicate Binders

Outstanding Green Sand Metal Casting Achievement Award for Front Bracket Extension

Posted by Hill and Griffith Company on May 21, 2019 2:11:47 PM

Monarch Industries of Winnipeg, Manitoba, Canada won the award

Front Bracket Extension: Monarch Industries
MATERIAL: D100-70-03 ductile iron.
PROCESS: Green sand.
WEIGHT: 94.6 lbs.
DIMENSIONS: 25.1 in x 13.7 x 21.8 in.
APPLICATION: Multi-functional frame rail mount for vocational trucks.

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Tags: American Foundry Society, Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Green Sand Release Agents, Foundry Supplies, Modern Casting Magazine

GRIFLUBE® Bio-Syn Biodegradable Hydraulic Fluid

Posted by Hill and Griffith Company on May 14, 2019 9:57:00 AM

GRIFLUBE® Bio-Syn will readily biodegrade as defined by OECD 301 C; and will easily exceed the 60% minimum biodegradability standard, converting CH3-CH2 molecular groups to CO2 within a maximum of 7 days, which exceeds the biodegradability rate of any polyether or polyol ester type fluid.


Hill and Griffith is pleased to submit the following technical information on our Factory Mutual approved fire resistant GRIFLUBE® Bio-Syn hydraulic fluid, as the proactive chemistry of choice for high production foundries, steel mills, casting operations, refineries, and any application which might be predisposed to elevated temperature extremes and have the potential for fire. GRIFLUBE® Bio-Syn was researched and designed as a superior biodegradable fire resistant hydraulic fluid, in comparison to conventional polyol esters, PAG/polyethers, and especially phosphate esters; to offer greater latitude relative to toxicological and environmental compliance, enhanced fire resistance, and maximum lubrication value, for extended wear characteristics in vane and axial piston pumps.

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Tags: Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Green Sand Release Agents, Foundry Supplies, GRIFLUBE® Bio-Syn Biodegradable Hydraulic Fluid

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