At present, there is no uniform standard for the structure of laser cleaning equipment. It needs to be determined according to factors such as the actual cleaning method, the type of substrate and dirt, and the effect of cleaning requirements. However, they are still roughly the same in some basic structures. , Mainly including lasers, mobile platforms, real-time monitoring systems, semi / automatic control operating systems and other auxiliary systems.
The domestic development status of laser cleaning technology. The research of laser cleaning technology and the development of equipment started late, basically tracking the development of foreign countries. Although some results have been achieved in a short period of time, there is a clear gap compared with foreign countries. Therefore, the more mature laser pointer cleaning in China There are not many equipments, and most of them are still in the laboratory research stage, and their cleaning efficiency and stability need to be further improved. Among them, Nanjing Dine Laser and Shanghai Optical Precision Machinery Research Institute have developed a series of laser cleaning machines. Washing machine, and commercial use. Applied to some industrial, scientific research, military and other markets, they applied for a series of patents, and their company series of products are as follows:
The development status of laser cleaning technology abroad. The research of laser cleaning technology started in the mid-1980s, but it did not really enter industrial production until the early 1990s, gradually replacing traditional cleaning methods in many occasions. The decontamination range of laser cleaning abroad is very wide, from the thick rust layer to the fine particles on the laser surface. In the decontamination, there are many types of equipment used in laser cleaning experiments. The laser has a wide wavelength range, but laser cleaning The development of technology is uneven, some have been industrialized, and some are still in the laboratory stage.
For example, in the field of laser mold cleaning abroad, it has developed into a 1000 W laser manual cleaning machine; electronic circuit cleaning uses a 248 nm laser, 3 W, 20 ns, which has been industrialized; in the chip field, using 248 nm, 5 W nanosecond UV cleaning , The effect is very good; in the photomask, the use of ultraviolet laser has completely replaced the traditional chemical methods; in laser derusting and laser decontamination, it has been applied on a large scale, and the experiment precedes the theory. In addition, experimental verification has begun in the field of semiconductors, magnetic heads and insulators.
In recent years, the German company has devoted itself to research on laser cleaning equipment that can realize plastic injection molds and rubber vulcanization mold lines, on-line and high-temperature cleaning scales. The following is based on the power level of the lasers used. Among them, several typical laser cleaning systems are introduced below. Performance and characteristics. Prospects for laser cleaning technology: The emergence of laser cleaning technology has opened up new fields of laser technology in industrial applications. Its development in microelectronics, construction, nuclear power plants, automobile manufacturing, medical care, cultural relics protection and other fields is in the ascendant, and the application market has broad prospects. .
The application in the field of laser processing technology for large parts has begun to take shape, and the application in the descaling of steel and mold decontamination is still blank, and the red laser pointer cleaning technology is still being developed in the fields of automobile manufacturing and construction. Although it is still difficult to estimate the market share of the application of laser cleaning technology in detail, many of the above areas belong to the pillar industries of the national economy. After the laser cleaning technology is added to it, the economic and social benefits generated are very considerable. Technical conditions, it is completely possible to develop supporting laser cleaning equipment and make it practical and industrialized in a short time, which is also of great significance to promote the development of high-tech industry itself.