Development of polishing machine
Metal surface polishing, polishing machine) technology, also known as surface leveling technology, in the special case of flatness requirements high is said to mirror processing technology (the use of mirror polishing machine). The surface leveling technology (polishing machine) is developed with the development of human life in the production and living needs. The tools used by our ancestors in the development of production, whether it is stone or metal tools, in order to improve production efficiency, to try to wear the tool flat, bright, sharp, sharp. In order to survive and with monsters and combat the mixed use of darts, spears, machetes, swords and other managed to the leveling surface polishing, grinding polished in order to kill the enemy. With the development of production and human life gradually became rich, in order to improve the quality of life, all life of fine jewelry, these activities also need to better polishing, leveling to improve its bright degree and improve product value. According to reports, as early as the new stone unearthed in the device there are traces of polish. A large number of unearthed terracotta actual production has adopted the technology of mechanical polishing polished.
In the Western Han Dynasty bronze mirror mirror processing technology has a great reputation, in the "Huainan" in the description. All of these surface leveling, polishing is to use simple with certain roughness and tools (such as polishing machine) and leveling objects rub against each other in order to achieve the purpose of leveling, and then use the finer sand or soft with toughness of the fiber material and abrasive friction further to light (polished) for the purpose of. Such as the Song Dynasty has been widely used iron oxide as an abrasive polishing technology, this technology is a hundred years earlier than foreign. This is the first use of the surface polishing technology, which is still in the use of mechanical polishing technology prototype.