Test Sieve

Introduction

Test sieve is also called testing sieve, lab sieve, experimental sieve, standard sieve, inspection sieve, standard test sieve, sampling sieve, particle sieve, analysis sieve, checking sifter, sieve set, pharmacopeia sieve, earth-rock sieve, soil sieve, sediment sieve, coal sample sieve, sieve set grizzly, standard screening test fixture, stainless steel standard sieve etc.

Features

Structure and Composition:

 Test sieve frame, screen cover and screen bottom are made of high quality stainless steel.

(1) screen frame:

   

  The screen frame adopts high quality stainless steel and one-time drawing shaping, surface polishing and with fine appearance. Closely cooperate, no leakage of material and water. The wall thickness is 0.6~0.7mm. The surface surface is so bright that it can serve as a mirror. Integral forming, strong and durable, no magnetism.

  The screen and frame are fixed by tin soldering. The connection is firm, no slack, no gap and no jam.

  It can be resistant to 400 degrees celsius high temperature, and can be used for inorganic and organic solution.

  Due to the use of stretching and forming, the dimensions are unified. And the upper and lower sieve frame adopt conical surface matching (consistent with the valve sealing method),which are completely sealed after the upper and lower installation. Meanwhile, due to the electrical conductivity between the frames, avoiding the electrostatic adsorption (consistent with the structure of the Taylor screen in the United States). The fine granule is smoothly flowed. If the user request, it also can be equipped with the sealing ring, but considering the electrostatic problem and the seal has reached the requirement, we generally do not use.

  Height: 50mm (General), 23mm (Short)

  Diameter of the frame: 8 inch, 12 inch, 75mm, 200mm, 300mm

           

          (2) mesh screen:

          The mesh is accurate. The screen is marked by standard screen size and mesh size, so the mesh with the same specification is identical at different time.

            The commonly used material of screen is brass, tin bronze and stainless steel.

            2.36um~100um adopt nickel plating, which can not only improve the precision of mesh hole, but also prevent the mesh deformation. hardness, wear-resisting and durability of mesh holes. Strong, wear-resistant and durable.

          Category:

          According to the screen material, the test sieve is divided into woven wire mesh test sieve, metal perforated plate test sieve and electrical forming test sieve.

          Test Sieve
          Screen Type Standard Basic Size of the Mesh
          Woven Wire Mesh GB/T6003.1-1997, comply with international standard ISO3310-1:1990 R20/3, R20, R40/3 series 2.36mm~0.015mm, square hole: 2.36mm~0.02mm triangle hole: to 0.005mm
          Metal Perforated Plate (Punching Board) GB/T6003.2-1997, comply with international standard ISO3310-2:1990 R20/3, R20, R40/3 series 32mm~1mm, mainly used in large mesh test sieve (>3mm)
          Electrical Forming GB/T6003.3-1997 0.50mm~0.005mm, hole size absolute tolerance 2~3um φ75*25mm

          Working Principle

          Test sieve is a tool for material particle size classification and detection. It is a sieve that is inspected, identified and agreed by the designated institution, which is an important symbol that is different from general sieve.

          Technical Parameters

          Mesh Size Aperture Size (mm) Wire Diameter (mm) Screening Rate (%)
          5# 4 1 64
          5.5# 3.55 0.90 63
          6# 3.35 0.80 65
          6.5# 3.15 0.80 63
          7# 2.8 0.71 63
          7.5# 2.5 0.63 64
          8# 2.36 0.56 65
          9# 2.24 0.56 64
          10# 2 0.50 64
          10.5# 1.9 0.50 63
          11# 1.8 0.45 64
          12# 1.7 0.45 63
          12.5# 1.6 0.45 61
          13# 1.5 0.40 62
          14# 1.4 0.40 60
          14.5# 1.32 0.40 59
          15# 1.25 0.40 57
          16# 1.18 0.40 56
          16.5# 1.12 0.355 58
          17# 1.06 0.355 56
          18# 1 0.355 54
          18.5# 0.95 0.355 55
          19# 0.9 0.355 54
          20# 0.85 0.315 53
          22# 0.8 0.315 52
          24# 0.75 0.28 53
          25# 0.71 0.28 51
          27# 0.67 0.28 50
          29# 0.63 0.25 51
          30# 0.6 0.25 50
          32# 0.56 0.224 51
          34# 0.53 0.224 49
          35# 0.5 0.224 48
          38# 0.475 0.18 53
          39# 0.45 0.18 51
          40# 0.425 0.16 53
          42# 0.4 0.16 51
          44# 0.375 0.16 49
          45# 0.355 0.16 51
          47# 0.335 0.14 50
          48# 0.315 0.14 48
          50# 0.3 0.14 46
          54# 0.28 0.14 44
          57# 0.265 0.125 43
          60# 0.25 0.125 44
          65# 0.236 0.125 43
          68# 0.224 0.125 41
          70# 0.212 0.125 40
          75# 0.2 0.125 38
          78# 0.19 0.125 36
          80# 0.18 0.125 35
          85# 0.17 0.10 36
          90# 0.16 0.10 35
          100# 0.15 0.10 36
          110# 0.14 0.09 37
          115# 0.132 0.09 35
          120# 0.125 0.09 34
          125# 0.118 0.071 42
          130# 0.112 0.071 41
          140# 0.106 0.063 39
          150# 0.1 0.063 38
          160# 0.095 0.063 36
          170# 0.09 0.063 35
          180# 0.085 0.056 36
          190# 0.08 0.056 35
          200# 0.075 0.05 34
          210# 0.071 0.056 31
          220# 0.067 0.05 34
          230# 0.063 0.045 34
          240# 0.06 0.045 33
          260# 0.056 0.045 33
          270# 0.053 0.04 33
          290# 0.05 0.036 34
          300# 0.048 0.036 35
          325# 0.045 0.036 31
          340# 0.042 0.036 31
          360# 0.04 0.03 31
          400# 0.038 0.03 29
          420# 0.036 0.03 30
          450# 0.032 0.025 31
          500# 0.028 0.025 28
          520# 0.025 0.025 26
          550# 0.022 0.02 25
          600# 0.02 0.02 24
          800# 0.015 0.018 23
          1000# 0.01 0.015 20

          Application

          It is mainly used for particle size analysis and detection, widely used in abrasive, geological prospecting, metallurgy, pharmacopoeia, chemical building materials and other industries for screening and testing of particle materials.

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