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Green Sand Metalcasting Foundry News

Green Sand Foundry Vein Reduction

Posted by Hill and Griffith Company on Oct 17, 2017 5:18:52 PM

Reducing Surface Defects With Proper Vein Reduction

While green sand foundry vein reduction compounds can lead to improvements in iron castings — such as reduction in metal penetration and core erosion — they can result in varying degrees of tensile property reduction.

As casting surface quality becomes increasingly important to end-users, foundries have to find new and effective methods of eliminating surface defects in iron castings.

One method — vein reduction compounds — is used primarily to reduce or eliminate expansion defects, which show up as “veins” on the surface of the casting. Foundries have achieved reductions in expansion defects and imprints in casting quality with mixtures of 90% prepared sand and 10% vein compounds.

However, the key to vein reduction compound use is to be careful when adding the compounds into core sand mixtures, as they can result in varying degrees of reduction in mold tensile properties. This reduction is due primarily to the composition of the materials and the sizing.

This article will take a look at the process of vein reduction and what casting surface quality improvements can result.

Fig. 1. The middle location on this test casting was made with a phenolic urethane binder without the addition of a vein reduction compound. The locations at the left and right both used vein reduction compounds.

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Tags: Metal Casting, Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Green Sand Release Agents, Metal Casting Supplies, Foundry Supplies, Green Sand Metalcasting Foundry, Green Sand Metal Casting, Green Sand System, Green Sand Metalcasting, Foundry Core Coating, Vein reduction, metalcasting

Future Leaders in Metalcasting: Going Boldly into the Future

Posted by Hill and Griffith Company on Jun 13, 2017 1:41:25 PM

The sustainability of the green sand metal casting industry depends on having capable leaders in positions of responsibility. Future Leaders in Metalcasting (FLM) is a key AFS program to develop the next generation of leaders in the evolving metalcasting industry as they make their journey through the early stages of management tracks.

Sixty up-and-coming leaders met during the 121st Metalcasting Congress this April 26 in Milwaukee for interaction, networking and discussion of topics relevant to young leaders who are maturing into our industry’s future class of leaders. The event was one of at least two FLM meetings per year the group conducts to encourage its members to discover together best practices in team building, decision-making, strategic planning and plant operations.

 

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

Mudding and Daubing Compounds for Green Sand Metal Casting Foundries

Posted by Hill and Griffith Company on Jun 6, 2017 11:37:22 AM

Hill and Griffith offers many types of Mudding and Daubing Compounds which can be easily worked into core joints and smoothed without special tools or techniques, reducing excess grinding and cleaning of finished castings.

Mudding and Daubing Compounds

  • Smoothes roughened core surfaces
  • Prevents fins
  • Covers vent marks on cores
  • Smoothes up soft rammed or burned spots on cores

 

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Tags: Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Green Sand Metalcasting Foundry, Mudding Compounds, Daubing Compound

Sakae Opens Aluminum Green Sand Metalcasting Foundry Technology Partnership

Posted by Hill and Griffith Company on May 30, 2017 4:38:55 PM

Sakae Casting, a Japanese company that specializes in precision casting of pipes and mold forms, recently opened a U.S. aluminum green sand metalcasting foundry research partnership location in Idaho Falls, ID. There it intends to work with the University of Idaho, Idaho National Laboratory (INL), and firms involved in nuclear and advanced manufacturing, supporting their research capabilities and building a U.S. base for its capabilities.

With a headquarters in Tokyo, Sakae Casting has aluminum-alloy sand casting and copper-alloy diecasting capabilities. Its products include molds for forming automotive urethane sheet and seat upholstery.

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Tags: Green Sand Casting Products, Green Sand Foundry Supply, Foundry Supply, Green Sand Release Agents, Metalcasting Foundry Environmental Resources, Green Sand Foundry Simulation, Green Sand Metalcasting Foundry

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