1、Designation:E45411 Designation: E454 12Standard 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 revisio
2、n, 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.This standard has been approved for use by agencies of the Department of Defense.INTRODUCTIONIndustrial perforated
3、plate can be produced in many thousands of combinations of size and shapeof opening, 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 purp
4、ose of this specification is to simplify this problem by a condensed table of recommendedspecifications 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
5、making selections from this standard, the user will be guided to specifications that 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 orderedi
6、s sufficient to justify the cost of special tooling).If a user has a specific application 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 specifica
7、tion.1. Scope*1.1 This specification covers the sizes of square opening perforated plate and screens for general industrial uses, including theseparating or grading of materials according to designated nominal particle size, and lists standards for openings from 5 in. (125mm) to 0.127 (18 ) in. (3.3
8、5 mm) punched with bar sizes and thicknesses of plate for various grades of service. Methods ofchecking industrial perforated plate and screens are included as information in Annex A3.1.2 This specification does not apply to perforated plate or screens with round, hexagon, slotted, or other shaped o
9、penings.1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.4 This standard does not purport to address all of the safety concerns, i
10、f any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E323 Specification for Perforated-Plate Sieves fo
11、r Testing PurposesE1638 Terminology Relating to Sieves, Sieving Methods, and Screening Media2.2 ISO Standards:3ISO 2194-1972Wire Screens and Plate Screens for Industrial PurposesNominal Sizes of Apertures.1This specification is under the jurisdiction of ASTM Committee E29 on Particle and Spray Chara
12、cterization and is the direct responsibility of Subcommittee E29.01 onSieves, Sieving Methods, and Screening Media.Current edition approved Nov.June 15, 2011.2012. Published December 2011.June 2012. Originally approved in 1972. Last previous edition approved in 20092011 asE45409.E454 11. DOI: 10.152
13、0/E0454-112.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3Available from International Organization for
14、Standardization (ISO), 1, ch. de la Voie-Creuse, Case postale 56, CH-1211, Geneva 20, Switzerland, http:/www.iso.ch.1This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may
15、not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the
16、end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ISO Recommendation R388-1964Metric Series for Basic Thicknesses of Sheet and Diameters of Wire.FIG. 1 Unfinished End Pattern Finished End PatternE454 122ISO 2194 Ind
17、ustrial screens Woven wire cloth, perforated plate and electroformed sheet Designation and nominal sizesof openingsE454 1232.3 Other Documents:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)4Mil-Std-129 Marking for Shipment and Storage43. Terminology3.1 DefinitionsFor definitions of related
18、terms, refer to TerminologyFor general 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 or opening aperture, ndimensions defining an opening in a screen. the opening in a screening or sievingmedium.3
19、.2.2 bar, nmetal between perforations measured at the point where perforations are the closest. the metal betweenperforations.3.2.3 blank, nunperforated area located other than along the perimeter of a plate.3.2.4 break-out, nterm applied to the action that occurs ahead of the punch in its going thr
20、ough the plate.3.2.4.1 DiscussionThe fracturing of the material results in a tapered hole with the small dimensions on the punch side.3.2.5 centers, ndimensional sum of one perforation and one bar or the dimensional distance from the center of one perforationto the center of an adjacent perforation.
21、3.2.6 die side, nsurface of the plate that was against the die during the punching operation.3.2.7 finished end pattern, ncondition that occurs with some specifications of staggered pattern perforations as a result of tooldesign in which the pattern is completed on both ends of the plate (Fig. 1).3.
22、2.8 gage (also gauge) , na number designating a specific thickness of metal sheet tabulated in a standardized series, eachof which represents a decimal fraction of an inch.3.2.9 margin or border , nunperforated area located along the perimeter of a plate.3.2.10 open areapercent open area, nthe ratio
23、 of the total area of the apertures to the total area of the screen, usually expressedin percentage.3.2.11 perforationperforated pattern, naperture or opening produced by punching. the patterns that the perforations arearranged in, usually in a staggered pattern with midpoints nominally at the verti
24、ces of isosceles triangles or square patternsarranged in line with their midpoints nominally at the vertices of squares.3.2.12 screen, n(1) surface provided with openings of uniform size; or () surface provided with apertures of uniform size andshape; (2) another term used interchangeably for woven
25、wire cloth; (3) machine provided with one or more screen surfaces.3.2.13 screening, vprocess of separating a mixture of different sizes by means of one or more screen surfaces.3.2.14 smooth side or punch side, nsurface of the plate that was uppermost during the punching operation and through whichth
26、e punch entered the plate.3.2.15 unfinished end pattern, ncondition that occurs with some specifications of staggered pattern perforations as a result oftool design.3.2.15.1 DiscussionOn one end of the plate, the pattern will appear to be incomplete as a result of unperforated holes in theeven numbe
27、red rows, while on the other end of the same plate, the pattern will appear to be incomplete because of unperforatedholes in the odd numbered rows (Fig. 1).4. Standard Specifications4.1 Standard specifications for industrial perforated plate and screens are listed in Table 1.4.2 OpeningsThe series o
28、f standard openings listed in Table 1 include those of the USA Standard Sieve Series, SpecificationE323, and those of the ISO apertures for industrial plate screens, ISO 2194-19722194, with the addition of those openings incommon usage.4.3 Relationship of GradesThe purpose of the several grades is t
29、o provide combinations of opening and bar size for varioustypes of service, from medium-light to heavy. Since it is possible to vary the bar size independently from the plate thickness, eachof the service grades lists up to three combinations of bar and gage for each opening. The entire standard ser
30、ies has been designedfor a logical relationship of bar size to opening in each grade and between grades with the capability of also being able to varythe plate thickness.4Available from Standardization Documents, Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098,
31、http:/dodssp.daps.dla.mil.E454 124TABLE 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,in.Open
32、Area,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 57834 72.4
33、 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 11878 62
34、.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 69.4 3
35、347858 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 70.3 3143
36、434 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 234585
37、8 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 2127834
38、 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 54.653 218 218
39、38516 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 56.3 17
40、83412 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 1581212 58.
41、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 1125812 4
42、9.8. . 1381414 71.6 138516516 66.4 1383838 61.7 1381212 53.8E454 125TABLE 1 ContinuedPerforated Opening Medium Light Medium Medium Heavy HeavyStandard(metric),mmUSA In-dustrialStandard,in.Open-ing, in.Bar,in.Gage-Steel,in.OpenArea,percentOpen-ing, in.Bar,in.Gage-Steel,in.OpenArea,percentOpen-ing, in
43、.Bar,in.Gage-Steel,in.OpenArea,percentOpen-ing, in.Bar,in.Gage-Steel,in.OpenArea,percent. . 138516316 66.4 1383814 61.7 13812516 53.8 1385838 47.3. . 13851614 66.4 13838516 61.7 1381238 53.8 1385812 47.331.5 114 1141414 69.4 114516516 64.0 1143838 59.2 1141212 51.031.5 114 114516316 64.0 1143814 59.
44、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. . 118316316 73.5 1181
45、414 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 46.226.5 1116 1
46、11614316 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 62.31516516316 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 58.51316516516 52.213
