• HDG
  • HDG
  • 热镀锌


 

 


Defect Catalog Extract

Zinc Pot Fault

Alternative terms: Dross, Dross Pimple, Dross Striation, Dross Spot

Appearance: Particles and inclusions in coating: spots, stripes, area; elevation on surface; dark interruptions of the surface.

Titan Stripe

Alternative term: Dark Stripe

Appearance: Dark stripes in production orientation in all contrasts. From single event up to area appearance.

 


Scratch

Alternative term: Grind

Appearance: May occur as a single stripe or a group of stripes over a large area. Bright or dark appearance.

Uncoated Spot

Alternative term: Bare Spots

Appearance: Dark interruptions of surface to surface at strip edges. Single spots or irregular shaped areas.

 


Zinc Splash

Appearance: Single spot, elevation on surface.

Hole

Alternative term: Massive rupture

Appearance: Discontinuities of material between top- and bottom-surface. Often surrounded by folds and/or laminations.

 


Shell

Alternative terms: Roke, Seam, Sliver, Lamination, Blister, Scab

Appearance: Irregular, flaky; sometimes overlapping material, which can contain non-metallic inclusions and have a bright and/or dark appearance.

Dirt

Alternative terms: Drop, Bug, Insect

Appearance: Spots, stripes, areas. Dark interruptions of surface.

 


Slip Mark

Appearance: Mechanical damage, usually in clusters.

Bad Annealing

Alternative term: Not Alloyed

Appearance: Bright areas, mostly beginning at the coild edges, but also in the middle of the coil.

 


Blow-Off Structure

Appearance: Bright zigzag areas spread over the coil.

Line-Stop Fault

Appearance: Occurs on both sides of the strip. Streaky appearance, usually after line stops.

 


Contact


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52076 Aachen
Germany
tel: +49 (2408) 92 700 - 0
fax: +49 (2408) 92 700 - 500
info@isravision.com 


Customer Examples

  • Arcelor
  • Mittal
  • POSCO
  • Riva
  • ThyssenKrupp Stahl
  • USS
  • Winner Steel
  • WISCO