1、Designation: E454 12 (Reapproved 2016)Standard Specification forIndustrial Perforated Plate and Screens (Square OpeningSeries)1This standard is issued under the fixed designation E454; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision
2、, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.INTRODUCTIONIndustrial perforated plate can be produced in many thousands of combinations of size and shapeof openin
3、g, bar size, thickness of material, and type of metal. Such variety is often confusing and, tothe vast majority of perforated plate users, unnecessary, since each usually requires only a very fewspecifications.The purpose of this specification is to simplify this problem by a condensed table of reco
4、mmendedspecifications covering a wide range of openings in which industrial perforated plate is made, withseveral recommended bar sizes and thicknesses of plate for each opening, for use in various grades ofservice.By making selections from this standard, the user will be guided to specifications th
5、at are beingregularly produced, thus avoiding inadvertent selection of specifications that, because of little or nodemand, are unobtainable, except on special order (usually quite expensive unless the quantity orderedis sufficient to justify the cost of special tooling).If a user has a specific appl
6、ication for industrial perforated plate that can not be solved by a selectionfrom this standard, it is recommended that he consult his perforated plate supplier on the availabilityof an acceptable alternative specification.1. Scope1.1 This specification covers the sizes of square openingperforated p
7、late and screens for general industrial uses, includ-ing the separating or grading of materials according to desig-nated nominal particle size, and lists standards for openingsfrom 5 in. (125 mm) to 0.127 (18) in. (3.35 mm) punched withbar sizes and thicknesses of plate for various grades of service
8、.Methods of checking industrial perforated plate and screens areincluded as information in Annex A3.1.2 This specification does not apply to perforated plate orscreens with round, hexagon, slotted, or other shaped openings.1.3 The values stated in inch-pound units are to be regardedas standard. The
9、values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to
10、establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E323 Specification for Perforated-Plate Sieves for TestingPurposesE1638 Terminology Relating to Sieves, Sieving Methods,and Screening
11、Media2.2 ISO Standards:3ISO 2194 Industrial screens Woven wire cloth, perforatedplate and electroformed sheet Designation and nominalsizes of openings1This specification is under the jurisdiction ofASTM Committee E29 on Particleand Spray Characterization and is the direct responsibility of Subcommit
12、tee E29.01on Sieves, Sieving Methods, and Screening Media.Current edition approved July 1, 2016. Published July 2016. Originally approvedin 1972. Last previous edition approved in 2012 as E454 12. DOI: 10.1520/E0454-12R16.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontac
13、t ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from International Organization for Standardization (ISO), 1, ch. dela Voie-Creuse, Case postale 56, CH-1211, Geneva 20, Switzer
14、land, http:/www.iso.ch.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12.3 Other Documents:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)4Mil-Std-129 Marking for Shipment and Storage43. Terminology3.1 Definitions:3.1.1 For ge
15、neral terms related to sieves, sieving methods,and screening media, see Terminology E1638.3.2 Definitions of Terms Specific to This Standard:3.2.1 aperture, nthe opening in a screening or sievingmedium.3.2.2 bar, nthe metal between perforations.3.2.3 blank, nunperforated area located other than alon
16、gthe perimeter of a plate.3.2.4 break-out, nterm applied to the action that occursahead of the punch in its going through the plate.3.2.4.1 DiscussionThe fracturing of the material results ina tapered hole with the small dimensions on the punch side.3.2.5 centers, ndimensional sum of one perforation
17、 andone bar or the dimensional distance from the center of oneperforation to the center of an adjacent perforation.3.2.6 die side, nsurface of the plate that was against thedie during the punching operation.3.2.7 finished end pattern, ncondition that occurs withsome specifications of staggered patte
18、rn perforations as a resultof tool design in which the pattern is completed on both endsof the plate (Fig. 1).3.2.8 gage (also gauge) , na number designating a specificthickness of metal sheet tabulated in a standardized series, eachof which represents a decimal fraction of an inch.3.2.9 margin or b
19、order , nunperforated area located alongthe perimeter of a plate.3.2.10 percent open area, nthe ratio of the total area of theapertures to the total area expressed in percentage.3.2.11 perforated pattern, nthe patterns that the perfora-tions are arranged in, usually in a staggered pattern withmidpoi
20、nts nominally at the vertices of isosceles triangles orsquare patterns arranged in line with their midpoints nominallyat the vertices of squares.3.2.12 screen, n(1) surface provided with apertures ofuniform size and shape; (2) another term used interchangeablyfor woven wire cloth; (3) machine provid
21、ed with one or morescreen surfaces.3.2.13 screening, vprocess of separating a mixture ofdifferent sizes by means of one or more screen surfaces.3.2.14 smooth side or punch side, nsurface of the platethat was uppermost during the punching operation and throughwhich the punch entered the plate.3.2.15
22、unfinished end pattern, ncondition that occurs withsome specifications of staggered pattern perforations as a resultof tool design.3.2.15.1 DiscussionOn one end of the plate, the patternwill appear to be incomplete as a result of unperforated holesin the even numbered rows, while on the other end of
23、 the sameplate, the pattern will appear to be incomplete because ofunperforated holes in the odd numbered rows (Fig. 1).4. Standard Specifications4.1 Standard specifications for industrial perforated plateand screens are listed in Table 1.4.2 OpeningsThe series of standard openings listed inTable 1
24、include those of the USA Standard Sieve Series,Specification E323, and those of the ISO apertures for indus-trial plate screens, ISO 2194, with the addition of thoseopenings in common usage.4.3 Relationship of GradesThe purpose of the severalgrades is to provide combinations of opening and bar size
25、forvarious types of service, from medium-light to heavy. Since itis possible to vary the bar size independently from the platethickness, each of the service grades lists up to three combi-nations of bar and gage for each opening. The entire standardseries has been designed for a logical relationship
26、 of bar size toopening in each grade and between grades with the capabilityof also being able to vary the plate thickness.4Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/dodssp.daps.dla.mil.FIG. 1 Unfinished End Pa
27、ttern Finished End PatternE454 12 (2016)2TABLE 1 USA Standard Specifications for Industrial Perforated Plate and Screens (Square Opening Series)(U.S. Customary Units)Perforated Opening Medium Light Medium Medium Heavy HeavyStandard(metric),mmUSA In-dustrialStandard,in.Open-ing, in.Bar,in.Gage-Steel,
28、in.OpenArea,percentOpen-ing, in.Bar,in.Gage-Steel,in.OpenArea,percentOpen-ing, in.Bar,in.Gage-Steel,in.OpenArea,percentOpen-ing, in.Bar,in.Gage-Steel,in.OpenArea,percent125 5 51212 82.6 55858 79.0 53434 75.6 5 1 1 69.4125 5 55858 79.0 53412 75.6 57858 72.4 5 11878 66.6125 5 55812 79.0 53458 75.6 578
29、34 72.4 5 118 1 66.6. . 4121212 81.0 4125858 77.1 4123434 73.4 412 1 1 66.9. . 4125838 77.1 4123412 73.4 4127858 70.1 412 11878 64.0. . 4125812 77.1 4123458 73.4 4127834 70.1 412 118 1 64.0106 414 4141212 80.1 4145858 76.0 4143434 72.3 414 1 1 65.5106 414 4145838 76.0 4143412 72.3 4147858 68.8 414 1
30、1878 62.5106 414 4145812 76.0 4143458 72.3 4147834 68.8 414 118 1 62.5100 4 41212 79.0 45858 74.8 43434 70.9 4 1 1 64.0100 4 45838 74.8 43412 70.9 47858 67.3 4 11878 60.9100 4 45812 74.8 43458 70.9 47834 67.3 4 118 1 60.9. . 3341212 77.9 3345858 73.5 3343434 69.4 3347878 65.7. . 3345838 73.5 3343412
31、 69.4 3347858 65.7 334 134 62.3. . 3345812 73.5 3343458 69.4 3347834 65.7 334 178 62.390 312 3121212 76.6 3125858 72.0 3123434 67.8 3127878 64.090 312 3125838 72.0 3123412 67.8 3127858 64.0 312 134 60.590 312 3125812 72.0 3123458 67.8 3127834 64.0 312 178 60.5. . 3143838 80.4 3141212 75.1 3145858 70
32、.3 3143434 66.0. . 31412516 75.1 3145838 70.3 3143412 66.0 3147858 62.1. . 3141238 75.1 3145812 70.3 3143458 66.0 3147834 62.175 3 33838 79.0 31212 73.5 35858 68.5 33434 64.075 3 312516 73.5 35838 68.5 33412 64.0 37858 59.975 3 31238 73.5 35812 68.5 33458 64.0 37834 59.9. . 2343838 77.4 2341212 71.6
33、 2345858 66.4 2343434 61.7. . 23412516 71.6 2345838 66.4 2343412 61.7 2347858 57.6. . 2341238 71.6 2345812 66.4 2343458 61.7 2347834 57.663 212 2123838 75.6 2121212 69.4 2125858 64.0 2123434 59.263 212 21212516 69.4 2125838 64.0 2123412 59.2 2127858 54.963 212 2121238 69.4 2125812 64.0 2123458 59.2
34、2127834 54.9. . 2143838 73.5 2141212 66.9 2145858 61.2 2143434 56.3. . 21412516 66.9 2145838 61.2 2143412 56.3 2147858 51.8. . 2141238 66.9 2145812 61.2 2143458 56.3 2147834 51.853 218 218516516 76.0 2183838 72.3 2181212 65.5 2185858 59.753 218 2183814 72.3 21812516 59.7 2185838 59.7 2183412 54.653
35、218 21838516 72.3 2181238 59.7 2185812 59.7 2183458 54.650 2 2516516 74.8 23838 70.9 21212 64.0 25858 58.050 2 23814 70.9 212516 64.0 25838 58.0 23412 52.950 2 238516 70.9 21238 64.0 25812 58.0 23458 52.9. . 178516516 73.5 1783838 69.4 1781212 62.3 1785858 56.3. . 1783814 69.4 17812516 62.3 1785838
36、56.3 1783412 51.0. . 17838516 69.4 1781238 62.3 1785812 56.3 1783458 51.045 134 134516516 72.0 1343838 67.8 1341212 60.5 1345858 54.345 134 1343814 67.8 13412516 60.5 1345838 49.0 1343412 49.045 134 13438516 67.8 1341238 60.5 1345812 49.0 1343458 49.0. . 1581414 75.1 158516516 70.3 1583838 66.0 1581
37、212 58.5. . 158516316 70.3 1583814 66.0 15812516 58.5 1585838 52.1. . 15851614 70.3 15838516 66.0 1581238 58.5 1585812 52.137.5 112 1121414 73.5 112516516 68.5 1123838 64.0 1121212 56.337.5 112 112516316 68.5 1123814 64.0 11212516 56.3 1125838 49.837.5 112 11251614 68.5 11238516 64.0 1121238 56.3 11
38、25812 49.8. . 1381414 71.6 138516516 66.4 1383838 61.7 1381212 53.8. . 138516316 66.4 1383814 61.7 13812516 53.8 1385838 47.3. . 13851614 66.4 13838516 61.7 1381238 53.8 1385812 47.3E454 12 (2016)3TABLE 1 ContinuedPerforated Opening Medium Light Medium Medium Heavy HeavyStandard(metric),mmUSA In-dus
39、trialStandard,in.Open-ing, in.Bar,in.Gage-Steel,in.OpenArea,percentOpen-ing, in.Bar,in.Gage-Steel,in.OpenArea,percentOpen-ing, in.Bar,in.Gage-Steel,in.OpenArea,percentOpen-ing, in.Bar,in.Gage-Steel,in.OpenArea,percent31.5 114 1141414 69.4 114516516 64.0 1143838 59.2 1141212 51.031.5 114 114516316 64
40、.0 1143814 59.2 11412516 51.0 1145838 44.431.5 114 11451614 64.0 11438516 59.2 1141238 51.0 1145812 44.4. . 1316316316 74.6 13161414 68.2 1316516516 62.7 13163838 57.8. . 131614 8 68.2 1316516316 62.7 13163814 57.8 131612516 49.5. . 131614316 68.2 131651614 62.7 131638516 57.8 13161238 49.5. . 11831
41、6316 73.5 1181414 66.9 118516516 61.2 1183838 56.3. . 11814 8 66.9 118516316 61.2 1183814 56.3 11812516 47.9. . 11814316 66.9 11851614 61.2 11838516 56.3 1181238 47.926.5 1116 1116316316 72.2 11161414 65.5 1116516516 59.7 11163838 54.626.5 1116 111614 8 65.5 1116516316 59.7 11163814 54.6 111612516 4
42、6.226.5 1116 111614316 65.5 111651614 59.7 111638516 54.6 11161238 46.225 1 1316316 70.9 11414 64.0 1516516 58.0 13838 52.925 1 114 8 64.0 1516316 58.0 13814 52.9 112516 44.425 1 114316 64.0 151614 58.0 138516 52.9 11238 44.4. .1516316316 69.415161414 62.31516516516 56.215163838 51.0. .151614 8 62.3
43、1516516316 56.215163814 51.0151612316 42.5. .151614316 62.3151651614 56.2151638516 51.015161238 42.522.47878316316 67.8781414 60.578516516 54.3783838 49.022.4787814 8 60.578516316 54.3783814 49.07812516 40.522.4787814316 60.57851614 54.37838516 49.0781238 40.5. .1316316316 66.013161414 58.5131651651
44、6 52.213163838 46.8. .131614 8 58.51316516316 52.213163814 46.8131612516 38.3. .131614316 58.5131651614 52.2131638516 46.813161238 38.3193434316316 64.0341414 56.334516516 49.8343838 44.419343414 8 56.334516316 49.8343814 44.43412516 36.019343414316 56.33451614 49.83438516 44.4341238 36.0. .11163163
45、16 61.711161414 53.81116516516 47.211163838 41.9. .111614 8 53.81116516316 47.211163814 41.9111612516 33.5. .111614316 53.8111651614 47.2111638516 41.911161238 33.5165858532 8 64.058316316 59.2581414 51.058516516 44.4165858316 10 59.25814 8 51.058516316 44.4583814 39.1165858316 8 59.25814316 51.0585
46、1614 44.45838516 39.1. .916532 8 61.2916316316 56.29161414 47.9916516516 41.3. .916316 10 56.291614 8 47.9916516316 41.39163814 36.0. .916316 8 56.291614316 47.991651614 41.391638516 36.013.21732173218 10 65.51732532 8 59.71732316316 54.617321414 46.213.217321732532 11 59.71732316 10 54.6173214 8 46.21732516316 39.613.217321732532 10 59.71732316 8 54.6173214316 46.2173251614 39.612.5121218 10 64.0125
