• Calculating your grain fineness number. Free Online Library

    Dec 01, 2009 路 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 that could lead to potential casting.

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  • AFS number calculation of sand

    This equipment surely takes out the manual errror from Grain Fineness (AFS number) calculations. Simply put the Sieves on the equipment serially and it will give you sand retention on each sieve along with AFS number. The results can be transmitted to PC for recording or printed with recommended printer. Specifications: Works on 230v 50Hz.

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  • Grain Fineness Number Calculator | Fineness Modulus of

    Grain Fineness Number Calculator What Is 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.

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  • Sand Testing | American Foundry Society

    Two tests will be performed in this module: the AFS 1105-12-S: Sieve Analysis (Particle Determination of Sand) and the AFS 1106-12-S: Grain Fineness Number, AFS GFN, Calculation tests. Topics that will be covered: purpose of the tests, basic variables that factor into the tests, and performing the tests in a virtual environment.

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  • Grain fineness number | Article about grain fineness

    9 AFS Grain Fineness Number 62 61 62 62 61 AFS Clay Content 8. Grain Fineness Number (AFS GFN, Calculation)--AFS 11-6-00-S. Properties of the four sands including grain fineness number (GFN), pH, acid demand value (ADV), and loss on ignition (LOI) are shown in Table 1.

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  • AFS number Archives Versatile Foundry Sand Testing Equipment

    Home / Tag: AFS number Grain Fineness redefined Calculating grain fineness so far is an exercise which, requires a serious amount of precaution and a skilled person to conduct the test.

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  • AFS number calculation of sand

    This equipment surely takes out the manual errror from Grain Fineness (AFS number) calculations. Simply put the Sieves on the equipment serially and it will give you sand retention on each sieve along with AFS number. The results can be transmitted to PC for recording or printed with recommended printer. Specifications: Works on 230v 50Hz.

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  • Grain Fineness Number Formula AZCalculator

    Grain Fineness Number Formula. Formula for calculate grain fineness number is, GFN = C ÷ 100 Where, C is cumulative percentage weight retained GFN is grain fineness number. Calculator. Related Formulas. Concentration of Volume Percent; Concentration of Weight.

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  • Grain Fineness Number Engineering Dictionary EngNet

    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.

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  • Molding Methods and Materials American Foundrymens

    The sieves (Ref 2). Table 1 lists the series of sieves used to run the standard AFS standard sieve analysis. A typical calculation of the AFS fineness number, which includes the multiplier factor, is given in Table 2. Table 1 Screen scale sieves equivalent USA series No. Tyler screen scale sieves, openings per lineal inch Sieve opening, mm Sieve opening, 渭m.

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  • Grain fineness number | Article about grain fineness

    9 AFS Grain Fineness Number 62 61 62 62 61 AFS Clay Content 8. Grain Fineness Number (AFS GFN, Calculation)--AFS 11-6-00-S. Properties of the four sands including grain fineness number (GFN), pH, acid demand value (ADV), and loss on ignition (LOI) are shown in Table 1.

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  • wgat does afs mean in afs grainfineness number

    Sep 26, 2013 of the finest fraction (AFS grain fineness number 140) and binder does not become dry. solidification, and cooling were recorded by means of PCL-818 influencing the solidification rate and solidification time, what.

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  • Fineness Wikipedia

    Measure. In England, the karat was divisible into four grains, and the grain was divisible into four quarts. For example, a gold alloy of 127?128 fineness (that is, 99.2% purity) could have been described as being 23-karat, 3-grain, 1-quart gold.

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  • Fineness Modulus of Coarse Aggregates and its Calculation

    Fineness modulus of coarse aggregates represents the average size of the particles in the coarse aggregate by an index number. It is calculated by performing sieve analysis with standard sieves. The cumulative percentage retained on each sieve is added and subtracted by.

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  • GFN Grain Fineness Number (American Foundry Society

    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.

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  • Fineness Modulus of Coarse Aggregates and its Calculation

    To find fineness modulus of coarse aggregate we need sieve sizes of 80mm, 40mm, 20mm, 10mm, 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm and 0.15mm. Fineness modulus is the number at which the average size of particle is known when we counted from lower order sieve size to higher order sieve.

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  • What Do the Numbers Mean | Modern Casting

    Dec 15, 2014 路 Grain Fineness Number (AFS GFN, Calculation)鈥擜FS 11-6-00-S. The purpose of the sieve anaylsis test is to determine the particle size distribution and estimate the average sieve size of green sand using standard testing sieves. Calculating the grain fineness number gives an estimate of the average sieve size of a sand sample.

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  • grain fineness number in industry

    So, grain fineness number is calculated as summation of xy upon summation of y, summation of y is 100, that way we calculate these grain fineness number. Basically larger is the fineness number, a smaller will be the grain size, and a smaller value of the grain fineness number is.

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  • wgat does afs mean in afs grainfineness number

    Sep 26, 2013 of the finest fraction (AFS grain fineness number 140) and binder does not become dry. solidification, and cooling were recorded by means of PCL-818 influencing the solidification rate and solidification time, what.

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  • GFN Grain Fineness Number (American Foundry Society

    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. Calculating your grain fineness number 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.

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  • Fineness Modulus .ps

    To find fineness modulus of coarse aggregate we need sieve sizes of 75mm, 37.5mm, 19mm, 9.5mm, 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm and 0.15mm. Fineness modulus is the number at which the average size of particle is known when we counted from lower order sieve size to higher order sieve. So, in the calculation of.

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  • Foundry sand testing Wikipedia

    Fineness number (grain size/AFS Number) of the base sand Moisture content in the mixture (ranges from 2-7% depending on the casting method) Permeability (ability of compacted mould to pass air through it).

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  • Foseco NonFerrous Foundrymans Handbook

    Calculation of AFS grain fineness number 16 Recommended standard colours for patterns 17 Dust control in foundries 18 Buoyancy forces on cores 18 The calculation of feeder dimensions 257 Determination of feeding requirements 262 Steel, malleable.

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