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china latest news about Galvanizing - hydrogen removal after galvanizing

Galvanizing - hydrogen removal after galvanizing

August 18, 2023

During the galvanizing process of steel parts, in addition to the electrodeposition of zinc, it is often accompanied by the side reaction of hydrogen ion reduction and hydrogen evolution. After hydrogen reduction, part of it becomes gas and escapes, and part of it penetrates into the coating and the ...
china latest news about Common faults and corrective methods of galvanizing

Common faults and corrective methods of galvanizing

August 17, 2023

Symptoms Possible cause Corrective method Rough coating, dark melting mixed liquid corrosion Current density too high PH too high Insufficient buffer Insufficient brightener Reduce current density Lower the PH Add buffer by analysis Increase brightener Slow deposition rate Low in zinc Low PH ...
china latest news about Galvanized - sulfate galvanized

Galvanized - sulfate galvanized

August 16, 2023

The dispersion capacity of sulfate zinc plating is worse than the above-mentioned zinc plating solutions, and the crystallization is coarse, in order to improve the performance of the plating solution, the introduction of Arabic gum or natural peach gum has the effect of refining the crystallization...
china latest news about Galvanized - chloride galvanized

Galvanized - chloride galvanized

August 15, 2023

1. Chloride galvanizing is a bright galvanizing process developed in the early 1980s. The characteristics of the chloride bath: A, it is a single-salt bath without complexing agent, and the wastewater is easy to treat. B, the brightness and leveling of the coating are better than its bath system. C, ...
china latest news about Galvanized - ammonium salt galvanized

Galvanized - ammonium salt galvanized

August 14, 2023

The zinc layer deposited from the zinc chloride-ammonia complexing agent galvanizing electrolyte has fine crystallization, beautiful luster, good dispersion and deep plating ability, and is suitable for electroplating of complex parts. This process has been widely used in China, but in production, ...
china latest news about Galvanized - cyanide galvanized

Galvanized - cyanide galvanized

August 12, 2023

Oxidized galvanizing has the advantages of good dispersion ability and deep plating ability, fine crystallization, good bonding force with the substrate, good corrosion resistance, wide process range, stable and easy-to-operate plating solution, and less sensitive to impurities. However, it is ...
china latest news about Galvanized - zincate galvanized

Galvanized - zincate galvanized

August 11, 2023

The characteristics of zincate plating solution: 1. No highly toxic oxides are used, and the wastewater is easy to treat; 2. The coating has fine crystallization, good gloss, dispersion ability and deep plating ability close to oxidation plating solution, and is suitable for electroplating parts ...
china latest news about Galvanized

Galvanized

August 10, 2023

The appearance of the zinc coating is bluish white, the standard electrode potential is -0.76V, it is easily soluble in acid and alkali, and it is a curved amphoteric metal. Zinc hardly changes in dry air, and the critical humidity of zinc corrosion is greater than 70%, so it can react with carbon ...
china latest news about Electroplating process - post-plating treatment

Electroplating process - post-plating treatment

August 9, 2023

1. Passivation treatment The so-called passivation treatment refers to the surface treatment method of chemical treatment in a certain solution to form a solid, dense and highly stable film on the coating. Passivation greatly improves the corrosion resistance of the coating and can increase the ...
china latest news about Electroplating process - pretreatment before plating

Electroplating process - pretreatment before plating

August 8, 2023

The purpose of pre-plating pretreatment is to obtain a clean and fresh metal surface and prepare for the final high-quality coating. Mainly for degreasing, to rust, to dust and other work. Proceed as follows: The first step is to make the surface roughness meet a certain requirement, which can be ...
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