Triangular holes
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а - size of triangle's side, mm
d - prescribed circle diameter, mm
t3 - pitch, mm
t4 - pitch, mm
F - open area, %
ВхL - maximum dimensions of sheet, mm
b - thickness of sheet, mm
|
a
|
t3
|
t4
|
F
|
|
1,1
|
20
|
3,7
|
25,0
|
|
3,0
|
3,2
|
4,2
|
28,93
|
|
3,5
|
3,5
|
4,7
|
32,1
|
|
4,0
|
3,8
|
5,2
|
54,9
|
|
4,5
|
4,1
|
5,7
|
37,4
|
|
5,0
|
4,4
|
6,3
|
38,9
|
|
5,5
|
4,8
|
6,8
|
40,0
|
|
6,0
|
5,1
|
7,3
|
41,7
|
|
6,5
|
5,5
|
7,9
|
42,0
|
|
7,0
|
5,8
|
8,4
|
43,4
|
|
7,5
|
6,1
|
8,9
|
41,7
|
|
8,0
|
6,4
|
9,4
|
45,9
|
|
8,5
|
6,7
|
9,9
|
47,0
|
|
9,0
|
7,0
|
10,4
|
48,1
|
|
9,5
|
7,8
|
10,8
|
46,3
|
|
10,0
|
8,2
|
11,3
|
46,6
|
Thickness from :0.3mm -3mm,length:25m,30m,12m,width :0.9m,1.0m,1.2m,1.5m
use mine, medicine, food selection, indoor noise, silencers, grain depot ventilation, mechanical protection
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Key words：Triangular holes perforated metal
[Source：Original]
[Author：web]
[Date：09-02-03]
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