GB/T 13307-2012 Pre-bent metal wire woven square hole mesh GB/T13307-2012 |tt||Standard compression package decompression password: www.bzxz.net
This standard specifies the structural type, model and size, technical requirements, inspection methods, acceptance rules and marking, packaging, transportation and storage of pre-bent metal wire woven square hole mesh for industrial use. This standard is applicable to pre-bent metal wire woven square hole mesh with a basic mesh size of 125mm~2mm. Special specifications can be negotiated by both the supply and demand parties.
This standard was drafted in accordance with the rules given in GB/T1.1-2009.
This standard replaces GB/T13307-1991 "Pre-bent metal wire woven square hole mesh".
Compared with GB/T13307-1991, the main technical content changes of this standard are as follows:
———Added the formula of mass per unit area (see 3.1);
———Added the conversion factor of mesh weight (see 4.2).
This standard is proposed and managed by the National Technical Committee for Particle Characterization and Sorting and Screen Standardization (SAC/TC168).
The drafting units of this standard: China Machinery Productivity Promotion Center, Bashan Precision Filter Material Co., Ltd., Hefei Anlian Trading Co., Ltd.
The main drafters of this standard: Yu Fang, Song Ruxuan, Liu Heqing, Tang Dong.
The previous versions of the standards replaced by this standard are:
———GB/T13307-1991.
The following documents are indispensable for the application of this document. For all dated referenced documents, only the dated version applies to this document. For any undated referenced document, the latest version (including all amendments) applies to this document.
GB/T2828.1 Sampling procedures for inspection by attributes Part 1: Sampling plans for batch inspection based on acceptance quality limit (AQL) GB
/T15602 Industrial sieves and screening terminology
JB/T7860—2000 Metal wire for industrial mesh ISO4783-3:1981 Industrial wire screens and woven wire cloth; Guide to the choice of aperture size and wire diameter combinations ; Part
3: Preferred combinations for precrimped or pressure-welded wire screens

ICS 19.120
National Standard of the People's Republic of China
GB/T13307—2012
Replaces GB/T13307--1991
Pre-crimped wire square opening screens
Industrial pre-crimped wire square opening screens2012-09-03 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2013-03-01 Implementation
People's Republic of China
National Standard
Pre-crimped wire square opening screens
GB/T 13307—2012
Published by China Standards Press
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First edition January 20133
First printing January 2013
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This standard is drafted in accordance with the rules given in GB/T1.1-2009. This standard replaces GB/T13307.--1991 & Pre-bent metal wire woven square hole mesh. Compared with GB/T13307-1991, the main technical content changes of this standard are as follows: The mass formula per unit area is added (see 3.1) The net weight conversion coefficient is added (see 4.2).
GB/T13307—2012
This standard is proposed and managed by the National Technical Committee for Particle Characterization and Sorting and Screen Standardization (SAC/TC168). The drafting units of this standard are: China Machinery Productivity Promotion Center, Bashan Precision Filter Material Co., Ltd., and Hefei Anlian Trading Co., Ltd. The main drafters of this standard are: Yu Fang, Song Ruxuan, Liu Heqing, and Tang Dong. The previous versions of the standards replaced by this standard are -GB/T13307—1991.
1 Scope
Pre-bent metal wire woven square hole mesh
GB/T 13307—2012
This standard specifies the structural type, model and size, technical requirements, inspection methods, acceptance rules and marking, packaging, transportation and storage of pre-bent metal wire woven square hole mesh for industrial use. This standard is applicable to pre-bent metal wire woven square mesh with basic mesh size of 125mm~2mm (hereinafter referred to as pre-bent mesh). Special specifications can be negotiated by both parties.
2 Normative reference documents
The following documents are indispensable for the application of this document. For all reference documents with a date, only the dated version applies to this document. For all reference documents without a date, the latest version (including all amendments) applies to this document. GB/T 2828.1 Sampling inspection procedures by attributes Part 1: Sampling plans for batch inspection based on acceptance quality limit (AQL.) GB/T 15602 Industrial sieves and screening terms
JB/T 7860--2000 Metal wire for industrial meshes I504783-3:1981 Industrial wire screens and waven wire cloth; Guide to the choice of apcrture size and wirc diameter combinations; Part 3: Preferred combinations for pre-crimped or pressurc-welded wire sereens) 3 Terms and definitions
The terms and definitions defined in GB/T 15602 and the following terms and definitions apply to this document. 3.1
Mass per unit area
mess per anit area
Calculate according to formula (1):
Px =(α\pf)/618.1 -(w+d)
Where:
Mass per unit area, in kilograms per square meter (kg/㎡\); wire diameter, in meters (mm);
mesh size, in millimeters (mm); mesh weight conversion factor (selected from Table 1);
material density, in dry grams per cubic pulp (kg/m\). Note 1: Typical values ​​of P for various materials can be found in the relevant material manual, see Table 2 in IS0 4783-3:1981. Note 2: (1) gives the mass calculated per unit area, and the actual value is allowed to be 3% lower. 4
Structural type, model and size
Structural type
There are five types of pre-bent mesh structures, see Table 1. (1
GB/T13307—2012
4.2 Dimensions
The specifications, basic mesh sizes and wire diameters of the preformed mesh shall comply with the provisions of Table 2. Table
Structure type code
·Mesh weight conversion coefficient is for reference only, and the actual value is affected by tension and weaving method. 2
Golden wire shrinkage mesh
Single bending
Metal wire shrinkage mesh
Bidirectional bending
Metal wire braided mesh
Locking (positioning) bending
Golden wire braided mesh
Golden thick wire braided mesh
Mesh conversion coefficient
Main dimensions
R10 Series
Basic mesh size u/mm
Supplementary size
R20 series
R0/3 series
Mesh arithmetic mean
Size deviation
Large mesh size
Deviation range
+8～+15
Gold wire diameter
Basic size
16,Core
GB/T 13307-2012
Screening area percentage
GB/T 13307—2012
Basic mesh size w/mm
Main size
R10 series
Supplementary size
R20 series
R40/3 series
Table 2 (continued)
Arithmetic mean of mesh support
Size deviation
Sky mesh size
Deviation range
1 10-- 1 20
Wire diameter
Basic size
Screening area percentage
Main size
R11 series
Basic mesh size w/mm
Supplementary size
R20 series
R40/3 series
2 (continued)
Arithmetic mean of mesh
Large mesh size
Deviation range
+10+20
15～+25
Wire diameter
Basic size
GB/T 13307—2012
Screening area percentage
CB/T 13307—2012
Basic mesh size w/mm
Main dimensions
RTO series
Supplementary dimensions
R20 series
R40/3 series
Table 2 (continued)
Arithmetic mean of mesh:
Dimension deviation
Large mesh size
Deviation range
+15～+25
+10~+25
+21--35
Wire diameter
Basic dimensions
Screening area percentage
Main dimensions
R10 series
Basic mesh size w/mm
Supplementary dimensions
R20 Series
R40/3 Series
Table 2 (Continued)bzxz.net
Mesh Arithmetic Mean
Size Deviation
Large Mesh Size
Deviation Range
+21~+35
Wire Diameter
Basic Size
GB/T 133072012
Screening area percentage
GB/T13307—2012
Basic size of mesh/mm
Main size
R10 series
Supplementary size
R20 series
R40/3 series
Table 2 (continued)
Arithmetic mean of mesh
Size deviation
Large mesh size
Range
+21～+35
Wire diameter
Basic size
Note: R10 series is preferred for basic mesh size. R20 series is second. If necessary, R40/3 series can also be selected. 4.3 Product marking
4.3.1 Product series code
Woven mesh (mesh)
Square hole (square)
Pre-bent (pre-)
Hood area percentage
4. 3. 2 Product model
0/0-00-0X.9
4.3.3 Product marking example
GB/T 13307
Standard promotion number
GB/T 13307—2012
Net width × net length [in meters (m)]
Structural type code (see Table 1)
Basic mesh size/wire diameter
Product series code
Example 1-Basic mesh size is 10 Example 2: Basic mesh size: 2.5 mm + base wire diameter is 1.25 mm, mesh width is 1 200 mm, mesh length is 5 000 mm, B2F material, A-type woven pre-bent mesh marking:
YFW 10/2.50-A-B2F-1.2X5 GB/T 13307 Example 2: Basic mesh size: 2.5 mm + base wire diameter is 1.25 mm, mesh width is 1 00 mm, mesh length is 25 000 mm, 1Cr18.N material, B-type woven pre-bent mesh marking:
YFW 2.5/1.25-B-1Ct18Ni9-IX2.5 GB/T 13307.5 Technical requirements
5.1 Materials
The wire material shall comply with the provisions of Table 2 in JB/T7860-2000. According to different uses, other metal materials shall be negotiated by both parties. 5.2 Surface quality
The surface of the pre-bent mesh shall be flat and clean, and shall not have defects such as mechanical damage and rust spots. For the types of mesh surface defects, see Appendix A. The warp and weft of the mesh surface shall be perpendicular to each other, and the allowable angle is 90\±2°. 5.2.2
5.2.3 The extended length of the metal wire at the edge of the mesh surface shall be neat and uniform. For the fixed connection type of the edge of the mesh surface, see Appendix B. 5.2.4 No broken metal wire is allowed in the mesh surface. 5.3
Mesh size and tolerance
The arithmetic mean size deviation of the mesh and the deviation range of the large mesh size shall comply with the provisions of Table 2. 5.3.2 The number of large meshes shall not exceed 10% of the number of meshes in the measurement area. 5.4 Metal wire diameter and tolerance
5.4.1 The deviation of the metal wire diameter shall comply with the provisions of JB/T7860. 5.4.2 The tolerance of the gold wire should not exceed half of the wire diameter deviation. 5.5 Allowable number of weaving defects
The number of weaving defects per 10m of mesh surface should comply with the provisions of Table 3. The number of defects in a mesh segment greater than or less than 10m should be converted according to the number ratio specified in Table 3.2 Surface quality
The surface of the pre-bent mesh should be flat and clean, and should not have mechanical damage, rust spots and other defects. For the types of mesh surface defects, see Appendix A. The warp and weft of the mesh surface should be perpendicular to each other, and the allowable angle is 90\±2°. 5.2.2
5.2.3 The extended length of the metal wire at the edge of the mesh surface should be neat and consistent. The fixed connection type of the mesh edge is shown in Appendix B. 5.2.4 No broken metal wire is allowed in the mesh surface. 5.3
Mesh size and tolerance
The arithmetic mean size deviation of the mesh and the deviation range of the large mesh size should comply with the provisions of Table 2. 5.3.2 The number of large meshes should not exceed 10% of the number of meshes in the measurement area. 5.4 Metal wire diameter and tolerance
5.4.1 The deviation of the metal wire diameter should comply with the provisions of JB/T7860. 5.4.2 The tolerance of the gold wire should not exceed half of the deviation of the metal wire diameter. 5.5 Allowable number of weaving defects
The number of weaving defects per 10m of mesh surface shall comply with the provisions of Table 3. The number of defects in a mesh segment greater than or less than 10m shall be converted according to the number ratio specified in Table 3.2 Surface quality
The surface of the pre-bent mesh should be flat and clean, and should not have mechanical damage, rust spots and other defects. For the types of mesh surface defects, see Appendix A. The warp and weft of the mesh surface should be perpendicular to each other, and the allowable angle is 90\±2°. 5.2.2
5.2.3 The extended length of the metal wire at the edge of the mesh surface should be neat and consistent. The fixed connection type of the mesh edge is shown in Appendix B. 5.2.4 No broken metal wire is allowed in the mesh surface. 5.3
Mesh size and tolerance
The arithmetic mean size deviation of the mesh and the deviation range of the large mesh size should comply with the provisions of Table 2. 5.3.2 The number of large meshes should not exceed 10% of the number of meshes in the measurement area. 5.4 Metal wire diameter and tolerance
5.4.1 The deviation of the metal wire diameter should comply with the provisions of JB/T7860. 5.4.2 The tolerance of the gold wire should not exceed half of the deviation of the metal wire diameter. 5.5 Allowable number of weaving defects
The number of weaving defects per 10m of mesh surface shall comply with the provisions of Table 3. The number of defects in a mesh segment greater than or less than 10m shall be converted according to the number ratio specified in Table 3.
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