Greensand Casting

From Open Source Ecology
(Redirected from Greensand)
Jump to navigation Jump to search

Basics

Technique

  • Comprehensive diagram of all casting types - [1]. MIG Casting is not included. Binders can be clay, chemically setting binders, and polymerized oils (motor oil)
  • No-Bake (airset or precision sand) casting - use a binder with sand. [2]
  • Types of Binders - [3]

Off the Shelf Greensand Sources

  • Petrobond - good for novices - [4]
  • Ebay - 5 lb - $20 - [5]

Casting Companies

  • Commercial airset sand casting - [6]

Greensand Formulas

Theory

  • You Will Have:
    • Sand ( Grain Size , Sand Type , etc all have their effects)
    • Your Binder(s)
      • In terms of non-Sodium Silicate or No-Bake
    • Small Amounts of Additives for more Specialized Greensand Formulations
      • Reducing Agents
      • Cushioning Material / Insulating Agents
  • One here, includes oil and bentonite - [7]

Misc DIY/OS Recipes

  • From Backyardmetalcasting - [8]
  • Sand + bentonite, mulled - [9]

K-Bond

  • K-bond- the open source oil sand
  • A Wayback Machine Archive of the Ray Vin . com Site Page on K-Bond
    • Did some Muckraking , this was a site run by Ray Brandes / Raymond V. Brandes if my understanding is correct.
      • He May or May Not Be Dead which may explain the page's lack of upkeep. That and/or security reasons which may make us not want to use their information too much on wiki as per that drama that happened a while back, but no need to get involved in that again really.
      • Many of the links in forum posts to the site may be full on extinct (ie not backed up in the Internet Archive 's Wayback Machine )
      • They also have These Patents from the early 2000's
  • PDF of Formula on the American Foundry Society 's Website
  • See Definitive Article on K-Bond
  • "K-Bond is named for Kent State where it was developed by one of Tom Cobett's Students. It is an almost smokeless oil bonded foundry sand for casting zinc, aluminum, brass, bronze and iron."

Internal Links

External Links