The principle of etching in a professional sense refers exclusively to a controlled corrosion of metal by a professional etching machine according to the design and process requirements. Through this controlled chemical process, it is possible to meet the design requirements of certain specific occasions that cannot be met by traditional mechanical processing methods.
Author: Anna
The principle of etching process
The principle of etching in a professional sense refers exclusively to a controlled corrosion of metal by a professional etching machine according to the design and process requirements. Through this controlled chemical process, it is possible to meet the design requirements of certain specific occasions that cannot be met by traditional mechanical processing methods. Metal chemical crippling corrosion, in more occasions referred to are foot metal in the natural environment of chemical damage caused by chemical loss so widely accepted definition of metal crippling corrosion is: metal and the surrounding environment media contact, and with the chemical or electrical north of the chemical interaction caused by the destruction, deterioration caused by the chemical loss of metal behavior. From this definition, all kinds of crippling corrosion of metals is actually the chemical loss of metals. For the language expression of the metal chemical loss off, the popular mainly have: chemical crippling, chemical etching, chemical milling and chemical stranding etching and so on four kinds.
About these four expressions can be understood from the following aspects:
Etching equipment
Chemical crippling corrosion: chemical crippling corrosion is a universal phenomenon and process of chemical loss of metal, including the usual commonly said will belong to the destruction of corrosion in a variety of crippling environment, but also including the use of chemical methods for controlled processing of crippling corrosion. From 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 chemically corrosive media behavior. Many etching machine manufacturers use this etching method.
Chemical etching: chemical etching is very specific, is ordered to refer to controlled crippling etching, is a controlled processing method of metal by chemical methods D chemical etching according to the surface effect after being etched and plus X requirements can be further divided into chemical milling and chemical texture over etching.
Chemical milling: chemical milling has the same meaning as mechanical milling, only using different processing methods. Chemical milling requires that the surface after chemical etching has the highest possible surface smoothness, the lowest possible surface roughness, and the highest possible etching accuracy.
Chemical strand etching: chemical texture etching refers to the surface after chemical etching, showing a certain roughness of the surface effect, and the size of this roughness can be adjusted within a certain range by the control of the chemical and physical indicators of the process. Chemical indicators include: the type of etchant used and the concentration ratio between each other; physical indicators include: etching temperature, etching time and etching method.