英语翻译Hot dip galvanizing is a process by which iron and steel

英语翻译
Hot dip galvanizing is a process by which iron and steel can be treated to prevent rusting.In essence it involves dipping the article with a chemically clean surface into a bath of molten zinc which reacts with the iron and forms a coating.The principles have remained unchanged since galvanizing first became a trade more than 150 years ago,but a vast amount of research on all aspects of the process has enabled galvanizing today to be a techincally advanced industry.
Since molten zinc cannot react with iron or steel covered with mill scale or oil,the article to be galvanized must first be prepared for hot dipping by cleaning processes which may include degreasing,grit blasting and acid cleaning(pickling),The article next receives a coating of flux,which activates its surface to allow the zinc to wet it and react with it on immersion.When it is withdrawn surplus zinc drains back into bath.THe zinc coated article may be quenched by immersion in water(boshed) or simply cooled in air.
The two main processes used differ in the method by which the flux coating is applied.In the wet process the work after pickling and rinsing is dipped through a flux layer floating on the surface of the zinc bath.In the more common,dry galvanizing process a layer of flux is dried onto the work before dipping and the work immersed in a clear bath of molten zinc.

热浸镀锌是其中铁和钢可以治疗,以防止生锈的过程.从本质上讲它涉及到一个熔融浸渍锌浴它与铁反应,形成一个涂层用化学清洁表面文章.这些原则仍然不变,因为镀锌首次成为超过150年前一个行业,而是一个研究这一进程的各个方面,使大量镀锌今天是techincally先进的产业.
由于锌液不能反应铸铁或磨规模或油的钢,文章被清洗过程,可能包括除油,喷砂和酸洗（酸洗）镀锌必须先热浸准备,文章下篇收到涂布助焊剂,激活其表面,使锌湿它,用它作出反应浸泡.当它被撤回盈余锌水渠回澡.锌涂层的文章,可在淬火只是在空气冷却水（boshed）或浸泡.
使用的两个主要过程不同,所依据的助焊剂涂层的应用方法.在湿法工艺酸洗和冲洗后的工作是透过通量下降对锌浴表面浮层.在较常见,干热镀锌过程中的通量层之前把工作干到浸渍,并在熔化的锌浴清除工作.