Application of corona machine

Corona treatment machines are commonly known as corona machines, electronic impact machines, and electric spark machines in the packaging industry. It is academically called dielectric barrier discharge. Mainly used for plastic films or plastic

For surface treatment of sheet metal products, the above materials need to be subjected to ink printing, lamination, film blowing, coating, gluing, material modification, polymerization, coating, casting,

Before the pasting process, in order to make the surface of the product have stronger adhesion (that is, have a higher dyne coefficient) and prevent the raw materials from printing color casts and color loss during the production process,

The lamination is not strong and the glue leakage is uneven, which affects the product quality. Corona shock treatment must be carried out first.

The principle of corona machine

Using a high-frequency and high-voltage power supply, corona is generated between the discharge electrode and the corona roller to form a low-temperature plasma area, which ionizes the air between the two poles to produce ozone.

It is an oxidizing agent that can immediately change the molecular structure of the plastic surface from non-polar to polar. At the same time, the surface of the material will be slightly uneven after corona.

Flat holes roughen the surface and enhance surface activity. In this way, after the surface tension is increased, ink, glue, etc. can further penetrate into the material being processed.

In order to achieve ideal printing and gluing effects.

Functions and characteristics of corona machine

* Corona machines are divided into different structural methods according to the shape of the objects to be processed, but the electronic control parts are generally the same.

* Insulation material corona treatment machine is suitable for treating PP, CPP, BOPP, PE, PET, HDPE, LDPE, PS, PI, PS, PC, PA, PVC, ABS,

Surface wetting tension treatment of non-woven fabrics, synthetic paper and other material films, plates and sheets;

* Conductive material corona treatment machine is suitable for surface wetting and tension treatment of aluminum foil, aluminized film and other material films, plates and sheets;

* Special-shaped material corona treatment machine is suitable for surface wetting and tension treatment of various special-shaped plastic parts;

  At present, the main machine of the corona machine manufactured by Hefeng uses stable, advanced and reliable imported high-power IGBT modules and devices as the main circuit components for control, triggering and display.

The main components of the circuit are composed of integrated circuits and digital displays, making the equipment very safe, reliable, durable, with low failure rate, and have the characteristics of overvoltage, overload, and overload.

The advantages of automatic protection such as current, short circuit and stall are currently a popular trend in the corona industry at home and abroad. Due to the use of power device IGBT, the product structure is simple and

The circuit connection is simple, reliable, high-efficiency, small size, easy to use, one-key operation, modular structure and easy maintenance.

Technical Parameters

Output power: 2-30KW optional (optional CD500/CG2000 series)

Input voltage: 220VAC/380VAC

Processing speed: 5-400M/min (customized according to requirements)

Processing width: 300-3000mm (customized according to requirements)

Processing surface: single side

Discharge electrode: metal electrode

Scope of use: non-conductive insulating materials PP, PET, PE, PVC, etc.

Applicable models: slitting machine, casting machine, laminating machine, extruder, slicer, coating machine, etc.