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.
Some standard content:
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 Published and distributed by China Standards Press No.16,Sanlihebei Street,Fuxingmenwai,Beijing Postal Code: 100045 Website b zcbs.com Tel: 6852394668517548 Printed by Qinhuangdao Printing Factory of China Standards Press and distributed by Xinhua Bookstores everywhere Format 880×1230 First edition in June 2004 Sheet 1 Word count 25,000 words First printing in June 2004 If there is any printing error Report to the Issuing Center of our company for replacement Copyright is exclusive and infringement will be investigated Report telephone: (010)68533533 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. Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.