表面处理
Surface finishing
1、 热浸锌：
Hot-dip galvanizing
概述：热浸锌是将除锈后的钢构件浸入600℃provement左右高温融化的锌液中，使钢构件表面附着锌层，锌层厚度对5mm以下薄板不得小于65μm，对厚板不小于86μm。从而起到防腐蚀的目的。
definition:Hot-dip galvanizing is a form of galvanization. It is the process of coating steel parts with a thin Zinc layer, by passing the metal through a molten bath of zinc at a temperature of around 600 °C. When the thickness of sheet metal is below 5mm, the Zinc layer must be above 65μm; and the Zinc layer should be above 86μm for tho thick plates. After the process, it can improvethe corrision resistance and tarnish resitence of the products.
优点：耐久年限长，生产工业化程度高，质量稳定。因而被大量用于受大气腐蚀较严重且不易维修的室外钢结构中。如大量输电塔、通讯塔等。
Advantages: After hot-dip galvanizing, the products are more durable, the manufacturing process is highly industrialized and the quality is very stable.And so, it is widely applied in the outdoor steel structures which are facing rious atmospheric corrosion and inconvenient maintenance, such as the power transmission towers and communications towers, etc.
2、 达克罗（DACROMET）：
Dacromet:
概述：达克罗是DACROMET译音和缩写，简称达克罗、达克锈、迪克龙。国内命名为锌铬涂层Zinc cr coating，是一种新型的耐腐涂层与传统的电镀锌相比：锌铬涂层耐腐蚀性能极强，是镀锌的7—10倍，无氢脆性，特别适用于高强度受力件，高耐热性、耐热温度300℃，尤其适用于汽车、摩托车发动机部件的高强度构件，高渗透性、高附着性、高减磨性、高耐气候性、高耐化学品稳定性、无污染性。
英语四级单词表Decromet is new coating with excellent decay resistance named by broken是什么意思zinc-chromium coating in China. Compared with the traditional electrogalvanizing coatings, zinc-chromium coating have a very good performance of corrosion resistance and tarnish resistance, about 7~10 times better than Zinc coating. It is without hydrogen embrittlement. It’s specially applied in high-strength forced components; it is heat-durability and the heat-resistant temperature was 300℃, specially suitable to the high-strength components in engine of automabile and motorcycle; it is with high penetrability and , adhesion or wettability, wear resistance, electrical stability and pollution-free。
北京汇佳国际学校
优点：
（1）无污染和公害；（2）高耐热性；（3）超强的耐蚀性能；（4）良好的渗透性；（5）无氢脆性；（6refresher）结合力及再涂性能好。
Advantages:
cisa(1), pollution-free; (2), heat-durability; (3), corrosion resistance and tarnish resistance; (4),
high penetrability;（5）No hydrogen embrittlement; （6）传闻中的七公主片尾曲good adhesion and overcoatability.
3、耐落：Nylok
概述：耐落螺纹防松技术是以特殊技术使特殊的工程树脂永久粘附在螺纹上，利用工程树脂材料的反弹性，使螺纹在锁紧过程中通过挤压达到对震动及冲击的绝对阻力，彻底解决了螺纹的松动问题。
Nylok thread anti looning Technology adopts special technologies to make the engineering plastics clinging to thread permanently. By using the elasticity of the engineering plastics, it will make the threads squeeze in the interlock process to cau ABSOLUTE resistence of vibration and shock, and solve the problem of thread loosing for ever.
优点：彻底解决了螺纹的松动问题。
Advantages:
新年快乐英文怎么写
Solved the problem of thread lossing foreve.
3、 钝化：passivation
概述：钝化是使金属表面转化为不易被氧化的状态，而延缓金属的腐蚀速度的方法。
Passivation is the process of making a material "passive", usually by the deposition of a layer of oxide that adheres to the metal surface. It can retard the progress of metal corrosion.
优点：经济实用，同时添加了高效缓蚀剂、抑雾剂，防止金属出现过腐蚀和氢脆现象、抑制酸雾的产生。
Advantages:
It’s economical and practical; meanwhile, it has been added Acid Fog Inhibitor and corrosion inhibitor, which can prevent the corrosion and hydrogen embrittlement; inhibit the production of Acid fog.
4、 磷化：phosphorization
概述：把工件浸入磷酸盐溶液中，使工件表面获得一层不溶于水的磷酸盐薄膜的工艺。
Phosphorization is the process of coating components with a phosphate layer which is lacking affinity for water by passing the components through a bath of phosphat solution.
作用：（1）提高工件的耐磨性；（2）令工件在机加工过程中具有润滑性；（3）提高工件的耐蚀性。
（1）， Improve the wear resistance performance; (2), make the components causing lubricating property during manufacturing process; (3), Enhance the corrosion resistance performance.
6、发蓝：blueing
概述：发蓝是将钢在空气中加热或直接浸於浓氧化性溶液中，使其表面产生极薄的氧化物膜的材料保护技术，也称发黑。
腌臜>unforgetable
Bluing is the process of coating steel components with a ultra-thin electrochemical conversion coating by heating the steel in air or through a bath of strong oxidizing solution, also called darkening.
优点：单独的发蓝膜抗腐蚀性较差，但经涂油涂蜡或涂清漆后，抗蚀性和抗摩擦性都有所改善。发蓝时，工件的尺寸和光洁度对质量影响不大。故常用於精密仪器、光学仪器、工具、硬度块等。
Advantages:
The single bluing coating is not with a very good performance of corrosion resistance and tarnish resistance. However, after covered with oil, wax or varnish, the performance of corrosion resistance and wear resistance is getting better. Duirng the process of bluing, the size and surface smoothness of the metal sheets effects the quality very little, and so, it is ofter applied to fine instruments, optics equipment, tools, hardness blocks, etc.
