What is metal etching, etching process has which form

"Metal etching" refers to the metal in accordance with the design and process requirements of a controlled corrosion behavior, through this controlled chemical processing, can meet the processing requirements of some specific places, and these requirements are traditional machining methods can not be achieved. Metal chemical corrosion mainly has chemical corrosion, chemical etching, chemical milling, chemical texture etching and other four kinds.

Chemical corrosion: chemical corrosion is a universal phenomenon and process of chemical loss of metal, including the usual room temperature metal in a variety of corrosive environments in the destruction of corrosion, but also includes the use of chemical methods for controlled processing of corrosion. The whole process, it includes both uncontrolled corrosion and controlled etching, is a general term for the chemical loss of metal, is a chemical loss of metal in a variety of corrosive media behavior.

Chemical etching: chemical etching is very specific, is exclusively controlled corrosion, is the metal through chemical methods for a controlled processing method. Chemical etching according to be etched after the surface effect and processing requirements can be divided into chemical milling and chemical texture etching. Chemical milling: chemical milling and mechanical milling with the same significance, just using different processing methods. Chemical milling requirements after chemical etching of the surface, have the highest possible surface smoothness, may be low surface roughness, as well as the highest possible etching accuracy. Chemical texture etching: chemical texture etching refers to the chemical etching of the surface, showing a certain degree of roughness of the surface effect, and the size of this roughness can be adjusted through the process of chemical indicators and physical indicators of the process in a certain range of control. These chemical indicators include: the type of etchant used and the concentration ratio between each other, physical indicators including etching temperature, etching time and etching method.