Knowledge

08Nov, 2024

What impact does pretreatment before galvanizing have on the adhesion of the ...
If "solvent (or flux) method" is adopted for pretreatment before galvanizing, various issues may arise on the surface of steel pipes, including oxide scale left behind du
08Nov, 2024

What impact does the temperature of molten zinc have on zinc dross? At what i...
When the temperature of molten zinc is high, a large amount of iron is dissolved in it. For example, when heated to 510°C, 0.10% of iron is dissolved, which reacts with 1.6% of
07Nov, 2024

What impact does zinc dross have on the galvanized layer of galvanized steel ...
During hot-dip galvanizing, zinc dross in molten zinc is mixed within the zinc bath and becomes embedded in the galvanized layer after coating the steel pipe. Surrounded by pure zi
07Nov, 2024

How is zinc dross formed, and what are its components?
Zinc dross is primarily the product of the reaction between zinc and iron. Its main component is the iron-zinc alloy layer phase formed by the combination of zinc and iron. Therefo
07Nov, 2024

What is zinc dross?
每当将钢钎朝镀锌锅底部插下去时,就觉得下面有一层凝结的沙状物存在,如果将这些东西用捞渣机捞出来,我们就可以见到像豆沙一样的灰色物质,这就是一般俗称的锌渣.
07Nov, 2024

What are the harmful effects of zinc ash on hot-dip galvanizing?
From the section on the composition of zinc ash, it can be seen that besides zinc oxide as the main component, zinc ash also contains other oxides such as aluminum oxide, antimony
07Nov, 2024

What are the pros and cons of frequently skimming zinc ash?
During hot-dip galvanizing production, a layer of zinc ash (primarily zinc oxide) floats on the surface of the molten zinc and becomes thicker over time. If not removed, it can lea
06Nov, 2024

Why is there more zinc ash on the molten zinc surface at the tail end of stee...
In the production of hot-dip galvanized steel pipes, operators often spend considerable effort scraping off the zinc ash from the molten zinc surface at the tail end of the pipes.
06Nov, 2024

What methods can be used to reduce the production of zinc ash?
As we have previously discussed, factors that accelerate the formation of zinc ash are known. Therefore, based on this understanding, we can identify methods to reduce its producti
06Nov, 2024

Why are there generally no zinc flowers on galvanized steel pipes, but they a...
Why are there generally no zinc flowers on galvanized steel pipes, but they are common on galvanized sheet metal? As we all know, galvanized steel pipes generally do not have visib
06Nov, 2024

Why are zinc ingots always added directly from both ends of the galvanizing pot?
In the hot-dip galvanizing process where zinc ingots are directly added to the galvanizing pot, zinc ingots weighing approximately 23 to 25 kilograms each are thrown directly into
06Nov, 2024

Why do the zinc flowers differ on thin-walled and thick-walled pipes under th...
Under identical hot-dip galvanizing and cooling conditions, the zinc flowers obtained on thin-walled and thick-walled pipes after hot-dip galvanizing are not the same. The zinc flo

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