During pickling, if alkali and other impurities are introduced, the acid solution composition will gradually change, affecting the pickling efficiency. Therefore, to achieve satisfactory pickling results, regular checking, analysis, and replacement of the acid solution, and maintaining its appropriate cleanliness, should be conducted. Control the temperature. The temperature should be controlled according to the process specifications. Low temperature will significantly reduce the pickling speed, impacting production efficiency. Raising the temperature can accelerate the pickling speed but will increase the corrosion of the workpieces and equipment. @Proper stirring is required. Stirring is generally necessary during pickling. Move the workpieces up and down one or two times during the pickling process to change the orientation of the workpieces.

Also, there have been various attempts, but no designated manufacturers have been established yet. With the increasing popularity of colored steel plates, it is inevitable that designated manufacturers will emerge to meet market demand. The preliminary application of colored metal facade panels, colored steel windows and doors, and other building accessories in the construction industry has greatly enriched the product categories of our country's construction industry. Steel structures have always played a significant role in the history of architecture, although they have a fatal flaw of melting at high temperatures during use, yet they are indispensable in layered construction.

Corrosion resistance requirements; to produce this type of steel plate, simply adjusting the blowing pressure on both sides of the galvanized strip can create different zinc coating thicknesses on both sides, resulting in thickly galvanized steel plates. @Single-sided galvanized steel plate. The purpose of single-sided galvanized steel plate is the same as that of thickly galvanized steel plate. To further eliminate the adverse effects of the zinc coating on welding and painting properties, --- use steel plates with one side galvanized and the other side not, i.e., single-sided galvanized steel plates. The methods for producing single-sided galvanized steel plates include stripping, protective film, and vacuum evaporation methods, etc. The rapid development of defects on the working rolls is one of the main functions of color coated plates for corrosion prevention. The base material type is the main factor affecting the corrosion resistance of color coated plates for construction use, which usually selects hot-dip galvanized base materials and hot-dip aluminum-zinc alloy base materials due to their better corrosion resistance.
The specifications for galvanized sheet in the procurement standards for hot-dip galvanized base sheets stipulate a nominal thickness of 0.25~0.35mm with an allowable deviation of -0.02~+0.00mm for 1000mm width; the specifications also state a nominal thickness of 0.40~0.55mm with an allowable deviation of -0.04~+0.00mm for widths of 1200~1250mm.

The procurement specification for hot-dip galvanized base sheets stipulates the surface structure as fine zinc flowers or normal zinc flowers with a polished plate; the processing performance category shall be executed according to GB2518-88.

Standard for purchasing hot-dip galvanized base sheets specifies the nominal thickness of the steel strip as 0
.60~1.20, nominal width 1000 allows for a deviation of -0.04~+0.00. For nominal width 1200~1250, the deviation is -0.05~+0.00. The procurement standard for hot-dip galvanized substrate specifies a steel strip width deviation of +2~-0 for 1000mm, and +3~-0 for 1200~1250mm. Hot-dip
The procurement specification for zinc-coated steel coils in the zinc base plate standards stipulates a purchase weight of 5~10 tons, with individual orders not to be less than 3T; the procurement specification for hot-dipped zinc base plates specifies that the inner diameter of the steel coils to be purchased should be either 508 or 610mm.
The specification for purchasing galvanized sheets for hot-dip galvanized base plates stipulates the acquisition of sickle-shaped galvanized sheets with a length of 2 meters, which should not exceed 2mm; the specification also states that the flatness of the galvanized sheets from Canada should not exceed 5mm when measured over a length of 1 meter.