The types of metal etching are mainly chemical metal etching, electrolytic metal etching, laser metal etching, ultrasonic metal etching, etc. From the application of the application, there are mainly text metal etching, pattern metal etching, pattern metal etching, and eclipse of art and art. It is mainly used in chromium brand, label manufacturing, large metal plane decoration, art decoration of rubber and plastic mold cavity, and line production of electronic industry.
(1) Chemical metal etching
The eclipsed workpiece will be covered with corrosion -resistant coatings, corrosion -resistant or corrosion inks, and then covers the part that does not need to be etched, and then immersed the workpiece in a special metal etching solution to make the metal etching site fully contact the solution. If necessary, it can be possible. Heating, stirring, etc. Depending on the depth of the metal etching and the time to control the metal etching rate obtained by the test, the required metal etching result can be obtained. Chemical metal etching is also divided into soaking metal etching. It is mainly processed with small metal etching workpieces, which can be processed at a time. In addition, you can also use the spray method. That is, the metal etching chemical solution is constantly sprayed into the metal etching site on the metal surface, so that the solution and metal are fully contacting and the metal can be corroded, so that the metal that needs to be etched is dissolved. This method is suitable for making large -scale workpieces, such as large metal tablets or large signs such as large signs.
(2) electrolytic metal etching
Electrolytic metal etching is to cover the workpiece that requires metal etching first to cover the organic materials that do not need to etch with corrosion resistance and insulation, put the workpiece in a specific electrolytic solution, let the metal parts that need to be etched fully contacting the solution, and make the workpiece as the workpiece. The anode is cathode against another corrosion -resistant metal plate, and then passes through the current. The metal of the etched part is dissolved under the common action of the electrolyte solution and anode current, also known as electrochemical corrosion dissolving, and finally obtains the erosion pit of the required text or pattern pattern. Time depends on the depth of etch. Because the electrolytic metal etching is caused by the chemical effects of the solution and the dissolution of the current, the metal etching speed is fast, it is easy to obtain a deeper eclipse, and the production efficiency is high. It is suitable for the need for deep metal etching workpieces. Electrolytic metal etching also has soaking methods and spraying methods. It mainly depends on product requirements and processing conditions and selects the most suitable method.
(3) Laser metal etching
Laser metal etching is a new method that is improved from the method of laser plating on the metal etching. Also use laser plating devices, and then adjust the shade and anode position of laser electroplating. In fact, laser irradiation is added to the method of electrolytic metal etching, and the laser is illuminated on the anode of the metal etching, so that the metal etching part of the anode is not only the chemical reaction of the solution, but also the electrolytic effect of anode current. At the same time, the laser energy is added to increase the laser energy Effect. Laser not only has a promotion of electrolytic metal etching, but also chemically metal etching can also use laser irradiation to speed up the metal etching speed and improve the efficiency of metal etching. This is because under the irradiation of laser beams, the irradiated site generates high temperature, speeding up the speed of metal dissolving reactions, and also caused a strong stirring, which continuously updated the solution in the metal etching area, which greatly renewed, thereby greatly, thereby greatly, so as Improve the speed and efficiency of metal etching.
In addition, laser can improve the accuracy of metal etching during liquid injection and electrolysis. Especially when a printing version such as processing antenna and other circuits in the electronics industry, if the edge of the metal etching circuit is not clear enough, it can use laser irradiation to improve the clarity.
(4) Ultrasonic metal etching
Add an ultrasonic transmitter to the chemical metal etching or electrolytic metal etching, so that the metal etching solution can oscillate, which can accelerate the speed of metal etching. This is because the metal etching solution is stirred after adding the ultrasonic wave, so that new metal etching solution is constantly dissolved with the metal contact with the dissolved surface. On the surface, it plays a role in promoting metal dissolution. The stirring effect of the ultrasonic solution is much greater than that of ordinary air stirring, mechanical stirring and artificial stirring, and the erosion effect and quality are much higher. However, due to the difficulty of making and installation of the ultrasonic system, the investment is relatively large If it is not a professional metal etching manufacturer, it rarely uses it.
(5) Comparison of various methods
Looking at the above -mentioned erosion methods, each has its own characteristics. Generally speaking, chemical metal etching is the simplest and practical, easy to operate and implement. The equipment is simple and small in investment. It is mainly because the metal etching speed is slow, and there are more chemicals consumed, but it is easy to get on. Electrolytic metal etching is an electrolytic device and power system on the basis of chemical etching, which increases the metal etching speed, the consumption of chemical solution is relatively reduced, but it also increases the consumption of electrical energy. Under conditions, electrolytic metal etching is also a good choice. As for laser metal etching and ultrasonic metal etching, they use advanced scientific and technological means to promote the reaction and dissolution of the metal etching process, improve the speed and quality of metal etching, and play a role in assisting. If you use a large number of enterprises that process metal etching workpieces, you can choose to use it.
Asset Precision focus on providing and developing one stop metal solution in CNC, etching, punching, anodizing manufacturing which widely used in field of toys, electronics, intelligent component, pilotless aircraft and vehicle.
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