This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of metal woven screens for mining. This standard applies to metal wire woven screens (hereinafter referred to as screens) for screening various ores. JB/T 9032-1999 Metal woven screens for mining JB/T9032-1999 Standard download decompression password: www.bzxz.net

JB/T9032—1999
This standard is a revision of ZBD95003-88 "Metal Woven Screens for Ore". During the revision, the original standard was edited, and the main technical content remained unchanged.
This standard replaces ZBD95003-88 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Standardization of Mining Machinery. The responsible drafting unit of this standard: Shanghai Mining Screen Factory. The main drafters of this standard: Guo Zhenwei and Huang Jialin. 557
Machinery Industry Standard of the People's Republic of China
Metal Woven Screens for Ore
JB/T9032-1999
Replaces ZBD95003--88
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of metal woven screens for ore.
This standard applies to metal wire woven screens (hereinafter referred to as screens) for screening various ores. 2
Cited standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of the standard, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB191—1990 Pictorial signs for packaging, storage and transportation
GB/T 343—1994
Low carbon steel wire for general purpose
GB/T 4240--1993
Stainless steel wire
GB/T 5218--1985
Silicon manganese spring steel wire
GB/T 5219--1985
Chrome vanadium spring steel wire
YB/T 5103--1993
3Product classification
Oil quenching and tempering carbon spring steel wire
The screen has four structural types: plain weave, middle bend, flat top and locking type, as shown in Figure 1, Figure 2, Figure 3 and Figure 4. 3.1
Figure 1 Type A
National Machinery Industry Week 1999-06-28 approved 558
-Plain weave screen
2000-01-01 sold and implemented
JB/T 9032
Figure 2 Type B
-Middle curved screen
Figure 3 Type C-
Flat top screen
Figure 4 Type D
Locking screen
Model representation method:
JB/T 9032-1999
口xx口x
Wire diameter, mm
-Screen hole width, mm
Screen hole length, mm
-Screen width, mm
Screen length, mm
Strength code: light is 1, medium is 1, heavy is screen structure form (A, B, C, D)
3.3 The basic parameter code of the screen shall comply with the provisions of Figure 5, and the combination of screen hole size and wire diameter shall comply with the provisions of Table 1. w is the size of sieve hole, in mm id is the diameter of steel wire, in mm Figure 5
Nominal size of sieve hole W
Steel wire diameter d
Type (1)
Opening rate
Steel wire diameter d
Type (【)
Opening rate
Steel wire diameter d
Opening rate
Nominal size of sieve hole W
Light type ()
Steel wire diameter d
JB/T90321999
Table 1 (end)
Medium type (1)
Opening rate
Steel wire diameter d
Note: The combination of other sieve hole sizes and steel wire diameters can be selected by negotiation between the manufacturer and the user. 4 Technical requirements
Opening rate
Heavy duty ()
Wire diameter d
The screen shall comply with the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 4.1
Opening rate
The steel wire for the screen shall comply with the provisions of GB/T343, GB/T4240, YB/T5103, GB/T5218 and GB/T5219. 4.2
4.3The average deviation of the screen holes, the range of the maximum screen hole size and its allowable number shall comply with the provisions of Table 2. 561
Nominal size of sieve holes
Average deviation
JB/T9032-1999
Grade precision
Number≤6%large sieve hole size deviation
7. 5~11. 0
8.0~~12.0
8.0~12. 0
10.0~15.0
10,0~15.0
The surface of the sieve should be flat, and no steel wire cracks or weaving defects are allowed. The sieve made of low-carbon steel wire and spring steel wire should be painted with anti-rust paint. 562
Average deviation
Grade accuracy
Number ≤9% of large sieve size deviation
10.2~16. 0
11.5~18. 0
12.5~20.0
13.8~32.0
15.0~25.0
15. 0~～25. 0
21. 0~35. 0
21.0~~35.0
5 Test method
JB/T 9032—1999
5.1 The outer dimensions of the sieve are measured with a conventional measuring tool with a scale value of 1mm. 5.2 The surface quality of the sieve holes is inspected visually.
5.3 Check of average deviation of mesh size: The arithmetic mean of mesh size shall be determined by three mesh sizes along the length of the mesh (not more than 3m), one in the center and the other two at the edge of the mesh, but the distance from the edge of the mesh shall not be less than 50mm. The measurement position may be selected arbitrarily, but each position must be measured in both the longitudinal and transverse directions, see Figure 6. Figure 6
The arithmetic mean of mesh size shall be calculated according to formula (1): (1)
-arithmetic mean of mesh size, mm;
Where: a--
L--longitudinal or transverse measurement length, mm; n--number of mesh sizes along the length L;
d-average diameter of the steel wire, mm.
For a mesh with a mesh size not more than 16mm, the number of mesh size n shall not be less than 20; for a mesh with a mesh size greater than 16mm, the number of mesh size n shall be 10.
5.4 The range of the maximum mesh size should be checked at any two locations of each mesh that are not less than 50mm from the mesh edge. For meshes with mesh size not less than 16mm, check on a square mesh surface with 10 mesh holes in length and width; for meshes with mesh size less than 16mm, check on a square mesh surface with 20 mesh holes in length and width. First find the maximum mesh hole and measure it at the midpoint of the edge of the mesh hole. 5.5 For meshes with mesh size not less than 11.2mm, measure with a vernier caliper and a steel ruler with a scale of 0.5mm: for meshes with mesh size less than 11.2mm, measure with a vernier caliper. 6 Inspection ruleswwW.bzxz.Net
6.1 The mesh shall be inspected and qualified by the quality inspection department of the manufacturer before it can be shipped out of the factory, and a certificate of conformity shall be attached when it is shipped out of the factory. 6.2 The factory inspection shall meet the requirements of 4.3 to 4.5. 7 Marking, packaging, transportation and storage
7.1 Each screen should be attached with a label, which should indicate the product model, material brand, manufacturer name, production date and factory number. 7.2 The screen is packed in wooden boxes, and the packaging boxes should meet the requirements of water and land transportation. 7.3 The packaging boxes should be clearly marked, and the packaging storage and transportation diagrams should comply with the provisions of GB191. The text markings on the outside of the box should include: a) the name of the shipping station and the shipping unit;
b) the name of the receiving station and the receiving unit;
c) the product name and quantity;
d) the gross weight and net weight;
e) the shipping number.
7.4 The screen is not allowed to be stored in the open air, and should be stored flat in a dry and non-corrosive room. 569
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