14 True or False--Several sands can have essentially the same ZAFS grain fineness number but different distributions.
What does GFN stand for?
GFN stands for Grain Fineness Number (American Foundry Society)
This definition appears very rarely and is found in the following Acronym Finder categories:
- Science, medicine, engineering, etc.
- Organizations, NGOs, schools, universities, etc.
See other definitions of GFN
We have 22 other meanings of GFN in our Acronym Attic
- Gay Financial Network
- Genesee Free-Net (Flint, MI)
- Glass Filled Nylon
- Global File Name (computing)
- Global Food & Nutrition Inc (Washington, DC)
- Global Foodborne Infections Network (World Health Organization)
- Global Futures Network
- Gone for Now
- Good For Nothing
- Goodbye for Now
- Grand Forks, North Dakota (border patrol sector)
- Ground Fault Neutralizer (power generation)
- Group-Forming Network
- Global Facilitation Network for Security Sector Reform
- Gorbachev Foundation of North America
- Gay Fathers of North Bay and Area
- Geelong Field Naturalists Club Inc. (Geelong, Victoria, Australia)
- Grenada Food and Nutrition Council (St. George's University)
- Greyhound Friends of North Carolina
- Grace Family Network Foundation (Burnaby, British Columbia, Canada)
Samples in periodicals archive:
The optimal grain fineness number (GFN) in a sand system is determined by the type of metal poured, pouring temperatures, casting product mix (heavy vs.
Since North America has a wide variety of high quality silica sands available to the metalcasting industry, sands with an American Foundry Society grain fineness number between 55 and 60 were used.
strip time; * grain fineness number (GFN); * fines percentage; * sieve screen distribution, numbers 70, 100 and 140; * sand temperature.
The grain fineness number (GFN) and particle size distribution of the sand and additives also affect benchlife characteristics of mixed sand.
Use of round-grained washed silica sand with a grain fineness number (GFN) of 67 minimized the formation of lustrous carbon wrinkling defects.
Follow-up DOE A follow-up DOE was designed to study the influence of more specific process variables, These included sand grain fineness number (GFN) and screen distribution for a specific sand type, sand temperature at time of mixing, mix benchilfe over a wider range and further variations in the boiling point of the binder solvent package.
Sand Characteristics Most foundrymen are aware that sand shape, AFS grain fineness number (GFN) and distribution have a significant impact on core strength properties.