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What is the best method to separate a mixture of solid particles of the same material into lost of different size?
By using a series of sieves with increasingly small mesh openings, you can separate the material (soil, for instance, or a mixture of rocks, gravel, pebbles, and sand) into different size ranges. Sieves come in all kinds of mesh sizes, from large (with low mesh numbers, such as 2, which has an opening of 11.2 mm) to very fine (with high mesh numbers, such as 635, which has an opening of 0.02 mm). There are many commercially available mesh sizes, so you don't typically use them all to separate the material. Instead, you might choose a few selected ones that depends on the material you are separating. One common way to do this is to stack the sieves (they are made to interlock when stacked) from lowest mesh number (biggest opening) on top to highest mesh number (smallest opening) on the bottom, and put them on a sieve shaker. As the shaker vibrates, the material gradually works its way downwards by gravity, and each particle ideally goes as far down as it can until it meets a screen that is too small for it to pass through. Obviously, if the particles are wet or sticky, this technique doesn't work very well. The different lots that have now been created are often referred to by their mesh ranges, such as -2/+10 mesh, meaning the sample has passed through the #2 mesh sieve and has been collected on the #10 mesh sieve. The "negative" sign in this case means "smaller than"; there is no "-2" mesh size. A common mesh size you will see on bottles of chemicals in powder form is -325 mesh, which means the particles are smaller than 44 microns (.044 mm).
Does resistivity depend on length and area of the cross section of the material?
No. Resistivity is a material constant, defined for a standard size of material. For another size of material, it can be calculated. Resistivity is the same for any piece of material; resistance can change.
Does size affect how well a material floats or sinks?
No!!!! The density of the material determines whether something will float or sink.
How much is one gram in size?
It depends on the density of the material.
What is the measure of the size of the disturbance from a wave?
Wave velocity
How do you measure the density of a material?
-- Get a piece of the material. It doesn't matter what size it is. -- Measure the mass of the sample. -- Measure the volume of the sample. -- Divide the mass by the volume. The result is the density of the material.
Which is bigger a 250 mesh or a 40 mesh filter?
No. of openings per square inch of wire mesh is specifies the mesh size and its again depends on wire dia also. If the number of openings per square inch is more then partical size which it can pass through the filter will be less. For example for 325 mesh size, where in 44 micron size of particle can get filter. In 200 mesh size 74 micron size of particle will get filter.
What is micron and mesh?
A micron is a micrometer, or one millionth of a meter (1/1,000,000 meters, or 1 x 10-6 meters). Mesh is a term used for a "screen" or "net" of some kind made of interlacing fibers or strands of some material. The mesh is a semipermeable "fabric" that will allow materials below a certain size threshold to pass through while stopping others. Mesh is also a term used in industry to speak to the particle size of irregularly shaped or granular material. For example, if we say "mesh 22" in regards to particle size, that means that particles that are about 1,000 microns in size and smaller will pass the screen, while larger particles will be obstructed and prevented from going through.
What is the best method to separate a mixture of solid particles of the same material into lost of different size?
By using a series of sieves with increasingly small mesh openings, you can separate the material (soil, for instance, or a mixture of rocks, gravel, pebbles, and sand) into different size ranges. Sieves come in all kinds of mesh sizes, from large (with low mesh numbers, such as 2, which has an opening of 11.2 mm) to very fine (with high mesh numbers, such as 635, which has an opening of 0.02 mm). There are many commercially available mesh sizes, so you don't typically use them all to separate the material. Instead, you might choose a few selected ones that depends on the material you are separating. One common way to do this is to stack the sieves (they are made to interlock when stacked) from lowest mesh number (biggest opening) on top to highest mesh number (smallest opening) on the bottom, and put them on a sieve shaker. As the shaker vibrates, the material gradually works its way downwards by gravity, and each particle ideally goes as far down as it can until it meets a screen that is too small for it to pass through. Obviously, if the particles are wet or sticky, this technique doesn't work very well. The different lots that have now been created are often referred to by their mesh ranges, such as -2/+10 mesh, meaning the sample has passed through the #2 mesh sieve and has been collected on the #10 mesh sieve. The "negative" sign in this case means "smaller than"; there is no "-2" mesh size. A common mesh size you will see on bottles of chemicals in powder form is -325 mesh, which means the particles are smaller than 44 microns (.044 mm).
Design of earthing mesh in substation?
The mesh size in the earthing design for substation can be various size depend on the area. For area that does not contain equipment, we could increase the mesh size because there is no equipment to cause touch potential. But if the area is at the corner of the substation, the mesh size should be smaller because to limit the step potential.
What size is 325 mesh?
.044mm
What is sieve?
Sieve analysis is carried out to estimate particle size distribution in a given feed material. Sieve types normally designated by Tylor mesh series.
How does 500 mesh convert to particle size?
mesh 500 micron=31 inches=0.0012
How much does welded wire mesh weight?
That would depend on the wire thickness, and size of mesh.
What is sieve analysis?
Sieve analysis is carried out to estimate particle size distribution in a given feed material. Sieve types normally designated by Tylor mesh series.
How is particle size measurement by sieving carried out?
The material is passed through sieves of progressively finer mesh and each fraction is weighed. (a sieve is a net , grid or parallel arrangement of wires/plates that lets particles of dimension finer than the mesh size pass while sorting coarser particles into a dedicated container.
What is the difference on between micron and mesh sizes?
Mesh size is usually used in the US. It's just an alternative system used to describe the hole size. For example, 35 mesh (US) is the same as 0.5mm or 500 microns.
