Rectangular hole in staggered row (LCZ)

Perforation mark: LC (w*l) Z (t1*t2)

  • Open area (%): A0 = (w * l / t1 * t2) * 100 u %
  • Number of holes per m2: n = 1.000.000 / t1 * t2
  • a2 = y * t1 + w
  • y = number of distances t1 parallel to a2
  • b2 = x * u + l
  • x = number of distances in parallel with b2
  • u = 0,5 * t2
  • Perforation direction: a1 ili b1

Rectangular hole in parallel row (LCU)

Perforation mark: LC (w*l) U (t1*t2)

  • Open area (%): A0 = (w * l / t1 * t2) * 100 u %
  • Number of holes per m2: n = 1.000.000 / t1 * t2
  • a2 = y1 * t1 + w
  • y1 = number of distances t1 parallel to a2
  • b2 = x1 * t2 + l
  • x1 = number of distances t2 parallel to b2
  • Perforation direction: a1 ili b1

Rectangular hole in staggered row (LCS)

Perforation mark: LC (w*l) S (t1*t2)

  • Open area (%): A0 = (w * l / 0,5 (t1 * t2) * 100 u %
  • Number of openings per m2: n = 1.000.000 / 0,5 (t1 * t2)
  • a2 = y * t1 + w
  • y = number of distances t1 parallel to a2
  • b2 = x * u + l
  • x = number of distances in parallel with b2
  • u = 0,5 t2
  • Smer perforacije: a1 ili b1

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