A brief introduction to etching technology and its characteristics.

Photochemical etching is one of the main manufacturing methods in precision metal sheet products. The process range can be basically divided into two parts. The first is to draw an accurate photo-tool according to the shape and size of the product, and then transfer and develop the image through the drying screen method on the metal sheet that has been pre-cleaned and pasted with a photosensitive film.

It is then placed in a chemical corrosion solution and eroded by a special method. The above technology is the application of chemical corrosion, the method has been used for a long time, and the ancient use has been used to make plaques and relief etchings, but its effect is rough, so it can only be applied to the very small scale of art and craft. After the rapid development of science and technology in recent decades, the dimensional precision control and composite photography technology of photoetching processing have been improved, and the new industrial technology has been transformed into a new industrial technology, which can be used for mass production in line with economic benefits in industrial applications, providing an effective alternative method for the production of precision metal sheet products.

Ningbo Dongsheng.

The advantages of the etching process are the principle of chemical solution corrosion processing, so the accuracy of processing will be higher than that of machining, and the flatness is better. The disadvantage is that because of the use of acidic or alkaline chemical solutions, there will be wastewater, which requires professional wastewater treatment, and at the same time, in the production process, do a good job of personal safety protection, wear gloves, masks, etc.

Tongjin etching processing plant etching line.

Electro-etching: Electro-etching is the use of the principle of anodic dissolution of metal in the liquid with tap water or salt water as the main body of etching, etching the metal (under the action of electrolysis), and turning on the etching power supply, so as to achieve the purpose of etching. Now the electrolytic etching machines on the market are manual spray type, and all of them are based on brine as the etching solution, the power has two kinds of size, the advantage is that there is no pollution, easy to operate, suitable for experimental production, gravure small area etching.

It is mainly used as a research experiment machine, or simply etching marks on metal, also known as electric marking. The disadvantage is that it cannot be produced in large quantities, nor can it be etched in large areas of embossed characters. Cannot be used for high-volume biochemical etching of signs:

1. This technology improves the traditional metal treatment method.

2. This technique can be done through data, charts. design and complex columnar shapes to process uneven metal products.

3. Etching technology can be used to make hole types and various forms.

Two. Technical standards for etching meshes.

1. The minimum silk warp made by machinery is.

2. The maximum production area is 500mm*600mm

3. The thickness of the material is -

3. Scope of application of chemical etching:

1. Types of metals that can be processed: all kinds of metals, alloys, stainless steel plates and strips;

2. Plate thickness range: 2mm and below thin plates, especially suitable for the following thin plates;

3. Industry use:

1) Precision filter screen, filter plate, filter cartridge and filter for petroleum, chemical, food and pharmaceutical;

2) Metal leakage plates, cover plates, flat pins, lead frames, and metal substrates for the electronics industry;

3) Precision optical and mechanical plane parts, spring parts;

4) Friction plate and other concave-convex plane parts;

5) Metal signage and metal decorative panels with complex patterns and exquisite handicrafts.