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花的產(chǎn)生，主要是含有鉛元素。高純度的鋅是不能生成鋅花的，因為其中缺少結(jié)晶核。在以往鍍鋅所采用的鋅錠中，都或多或少含有一定量的鉛，

這主要是由于在鋅礦的冶煉、蒸餾和冷凝過程中，鋅鉛總是共同存在。因此人們總能看到鍍鋅產(chǎn)品表面的鋅花圖案。近年來通過采用電解回收方法

生產(chǎn)出來的鋅的純度可達99.99%以上，使鋅內(nèi)不再存在鉛，從此鍍鋅廠家就可通過采用無鉛(約≤0.01%)或低鉛(約0.01%—0.05%)工藝來生產(chǎn)無鋅花

產(chǎn)品。無鉛或低鉛工藝就是通過降低鋅液中的鉛含量，使鋅層在凝固過程中增加形核點的數(shù)量，致使形核速度增加，同時降低晶粒長大速度，從而

阻止鋅花晶粒的長大。無鋅花產(chǎn)品表面不存在大量的晶界減薄和鋅花的起伏，再經(jīng)過光整后可獲得非常平滑的表面。這種產(chǎn)品經(jīng)涂漆后可得到高質(zhì)量

的涂漆產(chǎn)品。同時無鉛鋅花的另一個好處是不會產(chǎn)生晶間腐蝕。晶間腐蝕是由于鉛集中在晶界處，在潮濕環(huán)境的影響下造成鋅層的機械性能下降。

Flower production, mainly contains lead elements.High-purity zinc cannot generate zinc flowers because of the lack of a crystalline nucleus found in it.In the zinc

ingots used in previous zinc plating, they all contain more or less a certain amount of lead, mainly due to the common existence of zinc and lead in the smelting, distillation and condensation of zinc mines.Therefore, people can always see the zinc flower patterns on the surface of galvanized products.In recent years,

the purity of the zinc produced by using the electrolysis recovery method can reach more than 99.99%, so that there is no longer lead in the zinc,

and from then on, the galvanizing manufacturers can produce the zinc-free flower products by using the lead-free (about 0.01%) or low lead

(about 0.01% to 0.05%) process.Lead-free or low-lead process is to reduce the lead content in the zinc liquid, make the zinc layer increase the number of nuclei

during solidification, resulting in the increase of the core speed, and reduce the growth speed of the grain, thus preventing the growth of zinc flower grains.

There is no lot of grain thinning and zinc flowers, and then after light finishing can get a very smooth surface.This product is painted with high quality painted products.Another advantage of simultaneous lead-free zinc flowers is that they do not produce intercrystalline corrosion.Intercrystalline corrosion is due to the concentration of lead at the crystal boundary, reducing the mechanical properties of the zinc layer under the influence of a wet environment.