afs fineness number calculation

afs fineness number calculation

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  • Sand Testing Modules

    distribution of loose, dry sand using standard test sieves and calculate the AFS Grain Fineness Number (AFS GFN), an estimate of the average sieve size of a sand sample (01 CEU) ST3: Methylene Blue Clay Test In this module, the AFS 2210-00-S: Methylene Blue Clay Test, Ultrasonic Method, Molding Sand test will be performed...

  • Calculating your grain fineness number

    Dec 01, 2009· The AFS Grain Fineness Number (AFS-GFN) is one means of measuring the grain fineness of a sand system GFN is a measure of the average size of the particles (or grains) in a sand sample AFS-GFN gives the metalcasting facility a means to verify its molding sand is staying within specification for the castings being produced and avoid conditions ....

  • Foundry Manual

    PROPERTIES OF A 63 AFS FINENESS NUMBER SAND The principal properties (green strength, permeability, and dry strength) of a 63 AFS Fineness sand are shown in figures 58 and 59 This graphical method of presenting the information is used so that the interrelation of the various properties can be easily seen...

  • Grain Fineness Number

    Grain Fineness Number A system developed by AFS for rapidly expressing the average grain size of a given sand It approximates the number of meshes per inch of that sieve that would just pass the sample if its grains of uniform size It is approximately proportional to the surface area per unit of weight of sand, exclusive of clay...

  • Grain fineness number

    GFN - grain fineness number Looking for abbreviations of GFN? It is grain fineness number grain fineness number listed as GFN , The base aggregate of the sand used by New Haven is a four-screen lake sand at 55 AFS grain fineness number (GFN) for molds and 48 AFS GFN for cor Optimizing Sand control at New Haven Foundry sieve number ....

  • AFS number Archives

    Hydra-The Foundry Moisture Management system; VCAT- The Versatile Online Controller and Tester; Questionnaire for implementation...

  • Grain Fineness number Archives

    / Grain Fineness number Sifter (Sieve Shaker) 3D VGH-IV Details Search for: Categories None Uncategorized 0/9 Online Testing & Control 0/2 Calibration Kits 0/2 According to Sand type 11/362 CO2 (Silicate) Sand 2/52 Sand Preparation CO2 0/1 Specimen Preparation CO2 0/9 ,...

  • Q&A: Casting Answers & Advice

    Casting Answers & Advice , Can you give an example of how to calculate grain fineness number and detail why GFN is important? Background: The AFS Grain Fineness Number (AFS GFN) is a measure of the average size of particles in a sand sample AFS GFN is important because it provides the foundry a way to verify that its sand is within ....