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热镀锌板光整的意义是什么?

返回列表 来源: 发布日期: 2021.07.16


热镀锌板光整的意义是什么?

天物彩板专注彩涂板行业17年——山东热镀锌板生产厂家批发_热镀锌板光整的意义请拨打网站上方电话咨询

随着热镀锌板使用范围的不断扩大,在现代连续热镀锌生产线中,通过对带钢进行精加工,可以达到以下目的:
① 提高板料的平整度和平整度,将表面的锌粒压平,使带材表面光滑,特别适用于拉深等精度高的场合;

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② 所用的精整辊事先经过喷丸处理,因此精整后的板材表面有一定的粗糙度。提高涂层的附着力,储存一定量的润滑脂,有利于拉深模具的润滑;
③ 对于后涂板,虽然表面控制为小锌花,但小锌花仍可通过漆层露出。因此,对于一些要求较高的镀锌板,需要对小锌花的表面进行抛光。这样,镀锌板可以获得更均匀的银白色外观;
④ 通过精加工,降低了下屈服点,消除或不明显的屈服平台,防止了后期拉深或拉深时的滑移线,提高了拉深性能。

With the continuous expansion of the use of hot-dip galvanized sheet, in the modern continuous hot-dip galvanizing line, the following objectives can be achieved by finishing the strip:

① The flatness and flatness of the sheet can be improved, and the zinc particles on the surface can be flattened to make the strip surface smooth, which is especially beneficial for deep drawing and other occasions with high precision;
② The finishing roller used has been shot peened in advance, so the surface of the plate after finishing has a certain roughness. It can improve the adhesion of the coating and store a certain amount of grease, which is beneficial to the lubrication of the die in deep drawing;
③ For the later coated plate, although the surface is controlled to be small zinc flower, the small zinc flower can still be exposed through the paint layer. Therefore, for some high requirements of galvanized sheet, the surface of small zinc flower needs to be polished. In this way, the galvanized sheet can obtain a more uniform silver white appearance;
④ Through finishing, the lower yield point can be reduced, the yield platform can be disappeared or not obvious, the slip line can be prevented in later drawing or deep drawing, and the deep drawing property can be improved.

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