The most important factor in the mold material is hot strength and thermal stability, common materials mold material: Operating temperature 1000 ℃ molding material mold material nickel alloy copper-based alloy molds, alloy molds. 1950 off the mold protection, image processing has become a test items machinery industry, the production of visual inspection as a detection mechanism was born; 1960s and 1970s the rise of mold protection, missile and aerospace industries, manual inspection of the missiles and other precision can not be achieved industrial testing, visual inspection machine began to appear; 1980 Vision Long mold protection, machine vision detection is applied to the semiconductor industry was in the ascendant; in the 1990s, the emergence of smart cameras make visual detection technology has been rapid development, promote manufacturing vision applications; 2000, invention and popularization of digital cameras Li Heng mold protection, making the old style frame grab the camera is eliminated, greatly reducing the cost of visual inspection; 2005, Mettler - Toledo introduced the world HMI's first good visual inspection machine. Since then, the workers on the production line operating visual inspection equipment as simple as operating a computer. Today, the European Union, the United States and other countries have clearly defined vision inspection program should be conducted by manufacturers and standards through regulations. There are many domestic and foreign manufacturers to design a highly intelligent vision inspection solutions. More and more companies are starting to install its own production line visual inspection system [1]. In short, the visual inspection techniques and mechanisms have been widely promoted Sigma mold protection, ShengDing instrument (certified), mold protection provided by the Dongguan Sheng Ding Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.dgshengding.com) (www.dgshengding.com) is Dongguan, Guangdong, dedicated instrumentation leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum limits to meet customer needs. Sheng Ding instrument in leadership with the staff warmly welcome all inquiries negotiations to create ShengDing instrument a better future. You can also access (www.dgshengding.com/supply_details_50287160.html), for more information about the company.