Nov 04,2020

Passivation makes stainless steel no longer "stainless"

Stainless steel is the abbreviation of stainless acid-resistant steel, resistant to air, steam, water and other weak corrosive medium or stainless steel is called stainless steel.


Nov 02,2020

Stainless steel surface treatment process

There are many kinds of stainless steel surface treatment processes, such as: electroplating, anodizing, sandblasting, painting, passivation, pickling, degreasing, derusting


Oct 29,2020

Maintenance and Management of Trivalent Chromium Passivation Process on Zinc and Zinc Alloy

In terms of zinc and zinc alloy electroplating process, Dazhi Chemical Technology Co., Ltd. has developed a variety of trivalent chromium passivator and realized large-scale application. After years of experience accumulation, the application of trivalent chromium passivation is quite experienced.


Oct 28,2020

Why is the dispersion ability of alkaline zinc plating liquid poor

In the alkaline galvanizing process, there are four main factors that affect the dispersion ability of the plating solution:


Oct 27,2020

How to adjust the trivalent chromium in the bath?

In the chromium plating solution, it is very necessary to keep the content of trivalent chromium in a certain range. Too high or too low trivalent chromium will affect the coating.


Oct 22,2020

Trivalent chromium passivation and galvanizing process selection

Cyanide-free zinc plating is mainly chloride zinc plating and alkaline cyanide-free zinc plating


Oct 21,2020

Causes of Rough Zinc Particle on Hot-dip Galvanized Coating Surface

The main reason for the large number of rough zinc particles on the surface


Oct 19,2020

Reasons for the appearance of dark zinc layer in hot-dip galvanized coating

According to the relevant chemical data of Dazhi and the research results of relevant process manufacturers, the main reasons for this dark zinc layer are:


Oct 16,2020

The main advantages of hot dip zinc

Long durability, high degree of industrialization and stable quality. Therefore, it is widely used in outdoor steel structures which are seriously corroded by the atmosphere and are not easy to repair. Such as a large number of transmission towers, communication towers, etc.


Oct 14,2020

Performance Comparison of Three Kinds of Efficient and Environmentally Friendly Alkaline Galvanizing for Auto Parts

Electrogalvanizing has the characteristics of good corrosion resistance, low cost, and more beautiful coating. It has been widely used in light industry, electromechanical, instrumentation, agricultural machinery and national defense industries.


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