This standard specifies the type, parameters, technical requirements, inspection rules and marking, packaging, transportation and storage of round hole and square hole sieve plates with a plate thickness of less than 3mm. This standard applies to sieve plates for screening with a plate thickness of less than 3mm, with a round hole basic size range of 0.5mm to 10mm and a square hole basic size range of 2mm to 10mm. GB/T 10612-2003 Industrial sieve plate thickness GB/T10612-2003 Standard download decompression password: www.bzxz.net
This standard specifies the type, parameters, technical requirements, inspection rules and marking, packaging, transportation and storage of round hole and square hole sieve plates with a plate thickness of less than 3mm. This standard applies to sieve plates for screening with a plate thickness of less than 3mm, with a round hole basic size range of 0.5mm to 10mm and a square hole basic size range of 2mm to 10mm.

ICS73.120
National Standard of the People's Republic of China
GB/T10612—2003
Replaces GB/T10612—1989
Industrial plate screens-Thickness below 3 mm--Round and square holes(ISO7805-21987,IndustrialplatescreensPart2Thicknessbelow3mm,MoD)
2003-11-10 Issued
People's Republic of China
General Administration of Quality Supervision, Inspection and Quarantine
2004-06-01 Implementation
People's Republic of China
National Standard
Industrial sieve plates
Circular and square hole sieve plates with plate thickness <3mm
GB/T106122003
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GB/T10612—2003
This standard is modified and adopts ISO7805-2:1987 "Industrial sieve plates Part 2: Plate thickness <3mm" (English version). The main changes are as follows:
- ISO7805-2 gives the limit deviation of sieve holes and hole spacing in the form of formulas, and gives examples in the form of appendixes, while this standard directly gives the values ​​in the form of Tables 1 and 2, and gives the formulas of the limit deviation of sieve plate hole spacing and sieve hole size in the form of Appendix A. This standard replaces GB/T10612--1989 "Circular and square hole sieve plates with plate thickness <3mm". Compared with GB/T10612-1989, the main changes of this standard are as follows: the provisions on materials are added;
- The values ​​of the basic size of mesh, basic size of hole spacing, and opening rate are partially adjusted (see Table 1); some contents of marking and packaging are modified, and simple packaging methods are added. Appendix A of this standard is a normative appendix.
This standard is proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Technical Committee for Standardization of Sieve Screening and Particle Sorting Methods (CSBTS/TC168). This standard was drafted by the Mechanical Science Research Institute, and Chaonan Yueyang Wujiang Machine Screen Co., Ltd. participated in the drafting. The drafters of this standard are Wu Guochuan, Wan Jun, Sun An, and Yu Fang. The Secretariat of the National Technical Committee for Standardization of Screen Screening and Particle Sorting Methods is responsible for interpreting this standard. The previous versions of the standards replaced by this standard are: GB/T10612—1989
1 Scope
Industrial sieve plates
Circular and square hole sieve plates with plate thickness <3mm
GB/T10612—2003
This standard specifies the type, parameters, technical requirements, inspection rules and marking, packaging, transportation, and storage of circular and square hole sieve plates with plate thickness less than 3mm.
This standard is applicable to sieve plates for screening with a plate thickness less than 3mm. The basic size range of circular holes is 0.5mm~10mm, and the basic size range of square holes is 2mm~10mm.
2 Normative references
The clauses in the following documents become clauses of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to investigate whether the latest versions of these documents can be used. For any undated referenced document, the latest version applies to this standard. GB/T321
Preferred numbers and preferred number systems
GB/T912
GB/T1804
GB/T3280
GB/T4879
GB/T7350
General tolerances for hot-rolled sheets and strips of carbon steel and low alloy structural steel Tolerances for linear and angular dimensions without tolerances (eqvISO2768-1, 1989) Not Stainless steel cold rolled steel plate
Rust-proof packaging
Waterproof packaging
GB/T10061
GB/T15602
3 Terms and definitions
Method for marking sieve holes of sieve plate (eqvISO7806:1983) Industrial sieve and screening terminology (eqvISO9045:1990) GB/T15602 established, and the following terms and definitions apply to this standard. 3.1
Margin
The distance between the edge of the sieve plate and the outer edge of the outermost row of holes. 3.2
Opening ratioopenarea
The ratio of the total area of ​​the holes to the total area of ​​the open part of the plate. Expressed as a percentage. 4 Materials
The material of the sieve plate with a thickness of less than 3mm shall be agreed upon by the supply and demand parties. 5 Types and parameters
5.1 The arrangement of holes shall be in accordance with the provisions of GB/T10061. a) Round holes: T-type arrangement (see Figure 1);
b) Square holes: U-type arrangement (see Figure 2);
c) Square holes: Z-type arrangement (see Figure 3).
GB/T10612--2003
Figure 1 Round hole T-type arrangement
5.2 Basic parameters and dimensions
Figure 3 Square holes: Z-type arrangement
Figure 2 Square holes: U-type arrangement
5.2.1 The basic dimensions of the sieve holes are divided into the first series, the second series and the third series, and the first series is preferred. 5.2.2 The basic parameters and dimensions of the round hole sieve plate shall be in accordance with the provisions of Table 1. The basic parameters and dimensions not given can be calculated and rounded according to the formula in Appendix A.
5.2.3 The basic parameters and dimensions of square hole sieve plates shall be in accordance with the provisions of Table 2. The basic parameters and dimensions not given can be calculated and rounded according to the formula in Appendix A.
5.2.4 The limit deviation of the length and width of the sieve plate shall be in accordance with the provisions of tolerance grade h14 in GB/T1804. If the user has special requirements, it shall be agreed upon by the supply and demand parties.
First series
Basic size w
Second series
Table 1 Basic parameters and dimensions of round hole sieve plates
Limit deviation
Third series
Basic size
GB/T10612—2003
Unit: mm
Limit deviation
Opening rate
GB/T10612—2003
First series|| tt||Basic dimension w
Second series
Third series
Table 1 (continued)
Limit deviation
Basic dimension
Limit deviation
±0,40
Unit: mm
Opening ratio
First series
Basic dimension w
Second series
Third series
Table 1 (continued)
Limit deviation
Basic size
GB/T10612—2003
Unit: mm
Limit deviation
±0,20
±0,25
Opening ratio
GB/T10612—2003
First series
Basic size w
Second series
Third series
Table 1 (continued)
Limit deviation Difference
Basic dimension
Limit deviation
±0,50
±0,60
±0,80
Unit: mm
Porosity
±0,25
First series
Basic dimension certificate
Second series
Third series
Table (continued)
Limit deviation
Note 1: Porosity is a reference value. When the aperture <1.3mm, the hole spacing can be negotiated with the user. Note 2: The basic hole spacing size is allowed to be rounded according to GB/T321 according to the production and use requirements. Note 3, the basic size of the sieve hole in the bracket is allowed to be selected in coal analysis. Basic size
Table 2 Basic parameters and dimensions of square hole sieve plate
Basic size w
First series
Second series
Third series
Limit deviation
Basic size
GB/T10612—2003
Unit: mm
Opening ratio
Limit deviation
±0,35
Unit: mm
Limit deviationbzxz.net
Opening ratio
GB/T10612—2003
First series Column
Basic dimension w
Second series
Third series
Table 2 (continued)
Limit deviation
Basic dimension
Limit deviation
±0,50
Unit: mm
Opening ratio
±0,25
±0,25
First series
Basic dimension ratio
Second series
Third series
Table 2 (continued)
Limit deviation
Note 1: The opening ratio is a reference value. When the hole diameter is <1.3tmm, the hole distance can be negotiated with the user. Note 2: The basic size of hole spacing is allowed to be rounded according to GB/T321 based on production and use requirements. Basic size
GB/T10612-—2003
Unit: mm
Opening ratio
Limit deviation
5.2.5 The two diagonals of the sieve plate should be equal. Its basic size is the theoretical calculated value of the sieve plate diagonal. The dimensional limit deviation should comply with the provisions of tolerance grade h15 in GB/T1804
5.2.6 The margin width of the sieve plate should be agreed upon by the supply and demand parties. The limit deviation of the margin width of the sieve plate shall be in accordance with the provisions of Table 3.
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