Etched magnesium plate, after it was put on the market in the early 1970s, its superiority was recognized; later, with the vigorous development of printing and packaging industries, it was popularized and widely recognized in the field of high-end bronzing printing; in recent years, due to strict environmental protection With the intensification of requirements and competition, the requirements of printing enterprises for high-quality metal template materials continue to increase, the application of etched magnesium plates is increasing, the application fields and the number of applications are growing rapidly, and many have come from behind to replace traditional copper and zinc. board trend.
The low melting point and active chemical properties of magnesium are the difficult problems and bottlenecks in the alloying of magnesium; the close-packed hexagonal structure of magnesium has few slip systems, and the deformation performance at room temperature is poor; the preparation of high-performance deformed magnesium sheets also requires The multi-pass isothermal and isothermal rolling makes the processing cost of etched magnesium plate high, which is also the reason that limits its rapid popularization.
The magnesium plate has a small specific gravity, light weight, fast heat conduction, heat transfer and heat dissipation, high surface hardness, and easy demolding; and the etched magnesium plate is hardly deformed during the bronzing process, and the printing resistance rate is extremely high; the corrosion rate of the etched magnesium plate Fast, tidy slope, good continuity, smooth edges.
The many advantages of magnesium plate as a metal material for corrosion make it widely used in the fields of printing, packaging, nameplates, decoration, etc. around the world.
In the paper product packaging industry, it is used as bronzing plate and embossing plate. The same size of the template, the magnesium plate is lighter in weight, convenient and quick to transport, install, and glue the plate. The heat capacity ratio of the etched magnesium plate is small, the bronzing effect is good, the gold characters are bright, and the pattern is fine and shiny.
In particular, the hot stamping speed of magnesium plate is much faster than that of copper and zinc plate, and the printing durability is 20% higher than that of copper plate, which can effectively improve the processing speed and save labor costs.
In the wine box paper packaging industry, it can be used as a template for denting and bronzing. Its good print durability and heat transfer speed can greatly improve work efficiency, making magnesium plates for corrosion popular.
Large-scale etched magnesium plate, after up to four times of layer-by-layer corrosion, can form a deep embossed template with rich layers, fine lines, different shades and clear stripes, which can be used in wine box packaging, moon cake boxes, gift boxes, cosmetics, etc. Deep embossing and hot stamping of thick paper such as book covers and back covers.
The refraction embossed pattern on the corroded magnesium plate can be directly brushed with a plate brush in 5 degrees of nitric acid. The corrosion speed is fast, the operation is simple, and the procedure of entering the corrosion machine for corrosion is saved.
In particular, after multiple film films are exposed at the same time, they are corroded at one time, with clear lines and rich layers, which saves the process of degumming, spraying, exposing and corroding magnesium plates. Save labor and time.