01
The difference between grinding and polishing
Grinding: Use the abrasive particles integrated on the search tool, and the treatment surface of the treatment surface is carried out by the relative movement of search tools and parts under a certain pressure. The grinding can be used for the treatment of various metallic and non -metallic materials. The treatment accuracy can reach it 5 ~ IT1, and surface roughness can reach RA0.63 ～ 0.01 μm.
Polishing: Use the role of mechanical chemistry, chemistry or electric chemistry to reduce the roughness of the surface of the room to obtain a method of treatment of the light and flat surface.
The main difference between the two is that the surface sweetness obtained by polishing is higher than grinding, and chemical or electrochemical methods can be adopted.
02
Super precision polishing technology
Super precision polishing is the soul of the modern electronics industry
The mission that ultra-procioned polishing technology is to be completed in the modern electronics industry is not only differentiated materials, but also multi-plated with flat materials, so that several millimeters of silicon silicon plates squares can form tens of thousands of thousands of things to form. Integrated circuits at the level of the million “million” made up of millions of transistors. For example, the computer invented by humans has transformed tens of tonnes to a few hundred grams currently, and it cannot be made without ultra-procion polishing.
Taking the example of flea manufacturing, polishing is the last ring in the entire process. The today’s level of the Optoelectronics Information Industry is increasingly precise for the parallelism of sapphire and monocrystalline silicon and other materials for optorelectronic substrate materials, which has reached the level from Nano. This means that the polishing process has also entered the degree of super precision of the Nano level.
What is the importance of the ultra-procioning polishing process in modern manufacturing.
The higher level polishing process is only by a few countries like the United States and Japan
The central device of the polishing machine is a “grinding plate”. Ultra-procion polishing is almost hard on the composition of materials and the technical requirements of the grinding plate in the polishing machine. .
When the polishing machine is in a state of high speed racing, if the expansion of heat causes the thermal deformation of the grinding plate, the flatness of the substrate cannot be guaranteed. And this type of heat deformation error which cannot be authorized is a few millimeters or micrometers, but some nanometers.
Currently, the first international polishing process such as Japan and other international polishing processes can already meet the precision polishing requirements for 60 inch substrate raw materials (belongs to large size). firmly seize the initiative of the global market. In fact, the entry of this technology has largely controlled the development of the electronic manufacturing industry.
Faced with such a strict technical blockage, in the field of super-precision polishing, my country can only develop a search for self-research.
What level of the ultra-procurement polishing technology of China is?
In fact, in the field of ultra-procurement polishing, China is not not prepared.
In 2011, the “Micro Granularity Standard Material and its preparation technology” developed by the Dr. Wang Qi team of the Chinese Science Academy of Sciences and won the first prize of the Federation of Technology Chinese Chinese oil and Chinese chemistry technology in the Federation of Technology Chemical Technology. The ultra-procioned polishing production test of new dioxide materials is exceeded traditional foreign materials in a sudden, filling the gap in the field.
But Dr. Wang Qi said: “This does not mean that we have climbed at the top of this area. For global technology, only the polishing solution does not have a super precision polishing machine. We only sell materials at most. “
In 2019, Professor Yuan Julong, Zhejiang University of Technology, founded the treatment technology for semi-fixed abrasive chemicals. IPhone4 and iPad3 glass The only precision polishing equipment in the world in the world is polished by aluminum alloy panels and backboards.
The charm of mechanical treatment lies in this area.
Daguang focuses on providing solutions such as precision CNC machining services (3-axis, 4-axis, 5-axis machining), CNC milling, 3D printing and rapid prototyping services.
