How to distinguish copper clad door, copper plated door, simulated copper door, copper aluminum door and imitation copper door.

简而言之，铜皮结构是纯铜门、覆铜门、镀铜门都有的，但龙骨结构强度不一。板材同样是1.0mm，真铜门和覆铜门相差0,15mm。它们大的区别是'：覆铜门的组成部分是0.85mm的锌合金粘上一层0.15mm的铜箔;镀铜门在不锈钢或锌合金板上镀上一层铜箔。仿真铜门、仿铜门、铜铝门三类是普通的铁质材料的铁门工艺。铜铝门主要是铝型材上仿铜漆，只是用了仿铜油漆。

In short, the copper sheet structure is pure copper door, copper clad door and copper-plated door, but the strength of keel structure is different. The plate is also 1.0mm, and the difference between real copper door and copper clad door is 0,15mm. The big difference between them is': the component of copper clad door is 0.85mm zinc alloy bonded with a layer of 0.15mm copper foil; Copper plated doors are plated with a layer of copper foil on stainless steel or zinc alloy plates. Imitation copper door, imitation copper door and copper aluminum door are common iron door processes made of iron materials. Copper aluminum doors are mainly made of imitation copper paint on aluminum profiles, but imitation copper paint is used.

铜门的纯铜门，覆铜门，镀铜门三类的工艺处理过程：

Three kinds of process treatment processes of pure copper door, copper clad door and copper plated door of copper door:

一、处理工艺的过程：①除油、锈、氧化皮;②水洗;③酸洗抛光;④水洗;⑤中和;⑥水洗;⑦着色处理;⑧水洗;⑨干燥及其它后处理。

1、 Treatment process: ① remove oil, rust and scale; ② Water washing; ③ Pickling and polishing; ④ Water washing; ⑤ Neutralization; ⑥ Water washing; ⑦ Coloring treatment; ⑧ Water washing; ⑨ Drying and other post-treatment.

二、酸洗抛光。用铜材酸洗进行抛光液处理。黄铜表面光泽提高。

2、 Pickling and polishing. Use copper pickling for polishing solution treatment. The surface gloss of brass is improved.

三、工作液中放入工件，黄铜表面生成黑青色。工件重复浸泡，变色层厚度会增加，效果令人满意。

3、 When the workpiece is put into the working fluid, the black cyan color is generated on the brass surface. If the workpiece is soaked repeatedly, the thickness of discoloration layer will increase, and the effect is satisfactory.

四、上述步骤处理后，经砂纸摩擦，可达到古铜色的效果。

4、 After the above steps, the effect of bronze color can be achieved by sandpaper friction.