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15Apr 2022

PPGL steel coil-Neutral salt spray test

PPGL steel coil -Neutral salt spray test The neutral salt spray test simulates the environment of the ocean or the climate of salty and humid areas. It is used to evaluate the salt spray corrosion res
13Apr 2022

Forming spangles method for galvanized iron sheet

Forming spangles method-- galvanized iron sheet The method of forming spangles is to generate a large number of crystalline nuclei as early as possible and reduce the solidification temperature of zin
08Apr 2022

Steel coil production Process

1. PPGI/PPGL/ colour coated steel coil production process Unrolling → Stitching machine → Entrance loop → Pretreatment → Initial coating → Bake → Cool down → Fine coating → Bake → Embossed film → Expo
31Mar 2022

Production and Development of Prepainted Aluzinc Steel Coil

Production and Development of Prepainted Aluzinc Steel Coil 1.1 The production and development history of Prepainted Aluzinc Steel Coil 1.1.1Characteristics of Prepainted Aluzinc Steel Coil Prepainted
30Mar 2022

The thicker the zinc coating and paint coating, the longer the service life o...

Zinc/AZ coating The thickness of the coating is the essential guarantee condition for corrosion resistance. The thicker the coating thickness for steel coil, the better the corrosion resistance. For t
29Mar 2022

Hot Dip Galvalume Steel Sheet and galvanized steel sheet

Hot Dip Galvalume Steel Sheet and galvanized sheet which is better? the Hot-Dip Galvalume Steel Sheet is better; it is a little difficult to produce the aluzinc steel s from the production processes.
25Mar 2022

The difference between Hot dipped galvanized steel and cold rolled steel

1. The base material is different. An ordinary cold-rolled sheet is a product obtained from a hot-rolled sheet by cold pressing. Due to repeated cold rolling, its surface quality is better than that o
23Mar 2022

The appearance defect of GI steel coil (2)

The appearance defect of GI steel coil (6) Slag inclusion The galvanizing solution has residues or scum (metallic or non-metallic inclusions). Sometimes these slag inclusions are included in the galva
18Mar 2022

The appearance defect of Hot Dipped Galvanized Steel Sheet(1)

(1) Raw material steel sheet defects Surface defects of the raw material steel sheet, such as creases, pits, wavy edges, etc., continue to affect the Hot Dipped Galvanized Steel Sheet and become its s
14Mar 2022

Why is there a color difference on the surface of the Prepainted Galvanized S...

Why is there a color difference on the surface of the Prepainted Galvanized Steel Coil ? (paint, paint film thickness, viscosity, temperature, cooling water, curing oven, paint uneven or unstirred ) P
15Mar 2022

Why does Hot Dip Galvanized Steel Sheet rust?

It is normal for galvanized to rust.; otherwise, the zinc plate is impure and contains impurities such as iron. In addition, zinc protects other metals, and the uneven coating of zinc exposes the meta
09Mar 2022

Features for Matt PPGI Steel Coil

Matt PPGI Steel Coil, with a unique appearance and beautiful microstructure used for interior decoration or outdoor use, endows existing markets with new development and growth points. Its film-formin

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Knowledge

PPGL steel coil-Neutral salt spray test

Forming spangles method for galvanized iron sheet

Steel coil production Process

Production and Development of Prepainted Aluzinc Steel Coil

The thicker the zinc coating and paint coating, the longer the service life o...

Hot Dip Galvalume Steel Sheet and galvanized steel sheet

The difference between Hot dipped galvanized steel and cold rolled steel

The appearance defect of GI steel coil (2)

The appearance defect of Hot Dipped Galvanized Steel Sheet(1)

Why is there a color difference on the surface of the Prepainted Galvanized S...

Why does Hot Dip Galvanized Steel Sheet rust?

Features for Matt PPGI Steel Coil