Regarding the corrosion of our metal signs, we can choose two:

Corrosion of metal signage refers to the damage of metal under the chemical or electrochemical action of the surrounding medium, and often in combination with physical, mechanical or biological factors.

According to the progress of the corrosion process, metal corrosion can generally be divided into two categories, namely chemical corrosion and electrochemical corrosion.

Chemical corrosion is the corrosion caused by the chemical action of metals in monotonic gas and non-electrolyte solutions, which is called chemical corrosion. The products of chemical corrosion exist on the surface of the metal, and no current is generated during the corrosion process.

Assuming that the compound produced by chemical corrosion is very stable, that is, it is not easy to evaporate and dissolve, and the structure is fine and strong, and it is strongly combined with the metal matrix, then this layer of corrosion products is attached to the metal surface, which can protect the metal matrix and have a passivation effect. The effect of corrosion is called "passivation".

Assuming that the compounds generated by chemical corrosion are not stable, that is, they are easy to evaporate or dissolve, or they are not strong in combination with the metal, the corrosion products will fall off layer by layer (such as the oxide scale), which cannot protect the metal from being damaged. Continued corrosion, this effect is called "activation".

Electrochemical corrosion refers to the damage caused by the electrochemical interaction between the metal and the electrolyte solution, which is characterized by the generation of current during the corrosion process. Under the action of water molecules, the metal itself is ionized in the electrolyte solution. When the bonding ability between metal ions and water molecules is greater than the bonding force between metal ions and their electrons, the upper part of metal ions runs from the metal surface into the electrolyte, forming a Electrochemical corrosion.

In the actual corrosion process, this type of corrosion battery is also mainly used for sign corrosion, because some equipment may be made of two metal materials, or there may be different phases within the same material, or the physical and mechanical properties of various parts of the material may be The unequal forces lead to different potentials of parts of the device material, which then constitute this type of corrosion cell.

Compared with other types of signs, such as flat-printed signs, transfer signs and other metal signs, etching signs are much more complicated and the production process is more complicated. The technical requirements for practitioners are also higher. The grasp will be more strict. Generally speaking, the production of etched signs must go through the following processes and steps: pre-processing - mask making - etching - painting - post-processing.

Dongguan Kingming Hardware Plastic Technology co.,Ltd. can professionally provide you with the customization of luggage hardware accessories , luggage hardware,luggage buckles, luggage hardware buckles, shoe buckles, and shoe buckles to meet your individual needs and make your luggage The hardware accessories are different, let your bags shine.