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Category: enamel defects
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enamel defects

Lumps
  • enamel defects

Lumps

Lumps are common enamel defects, which are characterised by rounded raised areas with typically a diameter between 3 to 12 mm. (more…)
Ronald DitmerNovember 25, 2021December 11, 2022
Scaling
  • enamel defects

Scaling

Scaling is a common enameling defect, which is caused by contamination with materials with a higher melting temperature than enamel. Typical sources of scaling are...
Ronald DitmerSeptember 11, 2021December 11, 2022
  • Enameling Technology
  • Troubleshooting enameling processes

Identification of enameling defects

Identifying the correct type of enamel defect is the first & perhaps most important step when troubleshooting industrial enameling processes. Analyzing enameling defects with digital...
Ronald DitmerMay 10, 2020December 28, 2022
Blisters
  • enamel defects

Blisters

Blisters is a common enamel defect, which is characterized by appearance of circular holes & bubbles in a cooled enameled surface. May occur as a...
Ronald DitmerJanuary 4, 2020December 11, 2022
  • Enameling Technology
  • Troubleshooting enameling processes

Fishscaling of porcelain/vitreous enamel coatings

Fishscaling Fishscaling is an enameling defect, which is characterized by small enamel particles chipping off. Chipping off may happen directly after firing when cooling down...
Ronald DitmerMay 1, 2019May 2, 2019
  • Enameling Technology
  • News from enameling industry
  • Test equipment
  • Troubleshooting enameling processes

UNI 11734 : Determining fish-scale susceptibility of enameling steel

The Italian National Unification institute has published UNI 11734 as of December 6, 2018. This standard specifies a method for measuring the hydrogen diffusion coefficient in order...
Ronald DitmerApril 5, 2019June 25, 2020
  • Consultancy
  • Enameling Technology

Enameling cost reduction

Porcelain (vitreous) enameling is a relative complex coating process with many steps & dito variables. This complexity makes it very well suited for continuous improvement...
Ronald DitmerNovember 12, 2017October 7, 2022
  • Troubleshooting

Troubleshooting enameling defects

Resolving enamel defects during an industrial manufacturing process requires a structured three steps approach. Step I Identify the right defect. This may sound silly, but...
Ronald DitmerOctober 11, 2017September 19, 2021

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