Laser Cleaning for Mold

Since the mold is often used in a high-temperature, high-humidity environment, and the surface of the mold has an engraved pattern or other pattern, there are many remaining rubber or other residues in the engraved groove. When the residue accumulates to a certain extent, it will affect the shape and structure of the mold and eventually lead to the production of the product as a defective product. Therefore, it is particularly important to keep the mold clean.

With the development of science and technology, mold cleaning technology is constantly being updated. The earliest method was to soak the mold with high-temperature alkaline water, which is very useful for small molds, but not for large molds.

Later sandblasting became a new mold cleaning method. The raw materials used in the sand blasting method generally include sand, glass beads, etc., but all of the blast cleaning mold techniques have problems of damaging the mold surface and reducing the service life of the mold, and thus are not suitable for use. In recent years, technologies such as chemical cleaner cleaning and dry ice cleaning have appeared in the industry, but these methods cannot fundamentally solve the problem of cleaning molds. From the perspective of industry development, it is also necessary to develop more environmentally friendly, effective and cost-effective cleaning technologies.

The laser cleaning mold technology utilizes the characteristics of high energy, high brightness and good directionality of the laser to destroy the force between the pollutant and the surface of the object, thereby removing the pollutant without damaging the substrate.

The laser cleaning of the mold is a process in which the surface of the laser cleaning material is selectively evaporated. Different materials have different laser energy absorption rates for specific wavelengths. When the absorption rate of the surface attachments is greater than the absorption rate of the substrate, the temperature of the deposits can be instantaneously raised above the melting point and gasified by laser irradiation. The resulting surface layer gasification does not damage the substrate because the melting point of the substrate is not obtained.

The schematic of laser cleaning tire mold

What are the advantages of laser cleaning molds over traditional cleaning methods? A comparison table to take you to understand in detail.

Laser cleaning technology has great advantages over traditional cleaning technology. It can bring great benefits to the society in terms of economic benefits and "green" projects, and the market prospect is quite broad.