The following introduces the surface protection technology of Jinan Iron Gate:

　　1、金属保护层：在铁艺制品表面镀上一层不易锈蚀的金属或者合金，常用方法有：电镀、喷镀、热浸镀等，但用于铁艺制品上的金属保护层一般应选用热浸镀锌为好。由于被镀工件镀前的除油去锈和在440摄氏度的锌熔液中高温浸镀，所以其镀层可掩盖许多缺陷和缝隙，避免以后泛锈，并有极好的附着性能。

　　1. Metal protective layer: a layer of metal or alloy that is not easy to rust is plated on the surface of iron products. The common methods are electroplating, spray plating, hot dip galvanizing, etc., but hot dip galvanizing is generally preferred for the metal protective layer on iron products. Due to its excellent corrosion resistance in the bath and after plating, it can avoid many defects in the plating bath.

　　2、非金属保护层：在铁艺制品表面涂装一层或数层有机和无机化合物，如油漆、塑料、橡胶、沥青、珐琅、耐酸材料、防锈油等。

　　2. Non metallic protective layer: coating one or more layers of organic and inorganic compounds on the surface of iron products, such as paint, plastic, rubber, asphalt, enamel, acid resistant materials, antirust oil, etc.

　　3、化学保护层：用化学和电化学方法使铁艺制品表面形成一层非金属膜的保护层，如表面发黑、发蓝、磷酸盐处理等。

　　3. Chemical protective layer: a protective layer of non-metallic film formed on the surface of iron products by chemical and electrochemical methods, such as blackening, bluing, phosphate treatment, etc.
                      

　　4、焊渣：大门的焊接部位较多，必须认真每个焊接部位的焊渣。先用板锉或扁铁敲打除渣，然后用磨光机和砂布打磨焊缝，使其平滑。对飞溅到其他部位的焊渣也要顺势干净。

　　4. Remove welding slag: there are many welding parts in the gate, and the welding slag of each welding part must be removed carefully. First, use a plate file or flat iron to knock off the slag, and then use a polishing machine and abrasive cloth to polish the weld to make it smooth. The welding slag splashed to other parts should also be removed.

　　5、打磨原子灰：干透后，用磨光机和砂布打磨大门的各个组件，尤其是涂抹原子灰的部位更要磨光。

　　5. Grinding of putty: after drying, polish all components of the gate with polishing machine and emery cloth, especially the parts coated with putty.

　　6、喷漆：喷漆前，用湿布擦净大门的各个部位，不能留有灰尘等。道喷防锈漆，漆膜干透后喷第二道黑漆，喷一道清漆。注意不能有漏喷部位，也不能产生流挂等缺陷。个别细微处可用刷子刷涂补漆。

　　6. Spray painting: before painting, wipe all parts of the gate with wet cloth, and no dust can be left. The first layer is sprayed with antirust paint, the second layer of black paint is sprayed after the film is dry, and the last layer of varnish is sprayed. Attention should be paid to no leakage or sagging. Some tiny parts can be applied with brush.

　　以上介绍的是济南铁艺大门的表面保护工艺，希望大家有所了解，想要了解更多相关内容欢迎点击http://www.jnghbxg.com网站首页。

　　The above is the surface protection technology of Jinan iron gate, I hope you have some understanding. If you want to know more about it, please click http://www.jnghbxg.com Home page of the official website.