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Introduction to part of the steel coil quality problem

March 7, 2017No CommentsCAMELSTEEL
1. Steel Coil Quality Problem: Lateral bubbles
Characteristic
There are paintings among the two sides. After the baking, the bubbles occurs.
The causes
There are many burrs in the raw materials. It leads to the raw materials stained with paintings. And people could find the crevices among the two sides.
2.Pocking Mark
Characteristic
Sometimes, the eyewinker or dust sneaks into the coating. And people could find the thing, like small rice protrusions, on the surface.
The causes
  1. There are other kinds paintings.
  2. There are eyewinkers.
  3. The harmful bath occurs during the pre-treating process.
4.Orange peel
Characteristic
The dry surface coatings will be like the orange zest, rough and asymmetry.
The causes
  1. The wet film is too thick.
  2. The viscosity is too upper.
Previous post Why people use the different hot galvanized products? Next post Prepainted Steel Coil Usage

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