7
Mar.
31, 2025
11
Mar.
27, 2025
Can the workpiece still be galvanized after it turns black?
If the workpiece turns black, it can be re-galvanized by cleaning, grinding, pickling and other treatments.
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12
Mar.
27, 2025
Alkaline zinc plating is a surface treatment process widely used in industry to provide coatings that not only provide excellent corrosion protection but also have an aesthetically pleasing appearance.
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13
Mar.
27, 2025
Hydrogen removal method for post-electroplating treatment
Hydrogen embrittlement is a phenomenon in which hydrogen penetrates into the metal and causes damage, resulting in delayed fracture of the metal material under static stress lower than the yield strength of the material.
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14
Mar.
27, 2025
Production and application of carbon molecular sieves
Carbon Molecular Sieve (CMS) is a molecular sieve made of carbon-based materials with a unique microporous structure that can effectively screen gas molecules. Its preparation technology and application fields involve complex processes and scientific principles, and are widely used in gas separation, adsorption and storage.
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16
Mar.
27, 2025
Blackening surface treatment process
Blackening treatment: Place the cleaned workpiece in the boiling treatment solution, keep the treatment solution in the boiling state, the treatment time is 10-20 minutes. Ensure the surface of the workpiece is fully saturated and shaken appropriately to avoid leaving reticulation marks.
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17
Mar.
27, 2025
How the stainless steel passivation process works
The passivation process of stainless steel is a chemical treatment that improves the corrosion resistance of stainless steel by forming a dense, stable oxide film (usually chromium oxide, Cr2O3) on its surface. Passivation not only restores the passivation film of stainless steel that has been damaged during processing and welding, but also further enhances its corrosion resistance. The following
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18
Mar.
27, 2025
19
Mar.
27, 2025
Acid and alkaline waste gas treatment automatic dosing system working principle
Acidic or alkaline waste gas is treated by chemical adsorption. In the process of acidic waste gas treatment, the PH value of the spray liquid in the circulating water tank of the spray tower decreases constantly, which seriously affects the absorption of acid mist waste gas
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20
Mar.
27, 2025
Principle of electroplating automatic dosing device
The principle of electroplating automatic dosing device is mainly based on the photoelectric induction principle. The photoelectric sensor in the device will analyze the concentration of nickel plating solution in the plating tank online, and then adjust the dosage of the chemical solution automatically according to the pre-set program.
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