“In the past, domestic companies purchased 3D printing raw materials from Canada at a price of 8,000 yuan per kilogram. Now, due to the impact of our research and development results, Canadian companies have taken the initiative to reduce the price to 3,000 yuan per kilogram.†Xi'an Jiaotong University Qingdao Research Institute advanced manufacturing powder Song Xiaoping, director of the Body Research Center, said excitedly. The research and development results he said are high-profile spherical titanium alloy powders, which are key raw materials for 3D printing. Previously, this raw material was monopolized by foreign countries. Now the technology monopoly has been broken and the price has dropped by more than half. In the advanced manufacturing powder research center of Qingdao Research Institute of Xi'an Jiaotong University, which is located in the state-level Jiaozhou Economic and Technological Development Zone, the reporter saw the equipment for producing high-grade spherical titanium alloy powder. The device is nearly 10 meters in diameter and is disc-shaped. The "inside pedestrian" is called a plasma rotating electrode milling system. After the titanium rod is placed at one end of the device, the electro-optic light is passed through. After a series of processes, the other end of the device flows out of a high-profile spherical titanium alloy powder. These powders have an oxygen content of less than 600 PPM and a product specification of 80-100 mesh. They can be used in cutting-edge manufacturing such as defense and medical treatment. The technology was once monopolized by the United States, Canada, Germany and other countries. "The key raw material production technology is monopolized, which directly leads to the high cost of 3D printing technology, which restricts the development of the domestic 3D printing industry." Song Xiaoping told reporters, "In order to break the foreign technology blockade, our team began to invest in research and development five years ago." The development of high-profile spherical titanium alloy powder has two industry-recognized difficulties: First, how to ensure that the particle size is in the micron level, and the titanium alloy is made into a sphere, because the fluidity of the sphere is good, and the raw material transportation in the 3D printing process is facilitated; The sphere is easily in contact with oxygen, and how to minimize the oxygen content under small particle conditions. From the beginning, the R&D team independently developed a variety of advanced equipment such as plasma rotating electrode milling system, vacuum hydrogenation system, transmission electron microscope, scanning electron microscope, vibrating screening machine, etc., and innovatively studied plasma rotation, hydrogenation dehydrogenation, etc. Big technology path. In this way, we stepped forward step by step, and finally developed a titanium alloy powder with an oxygen content of less than 600 PPM and a product specification of 80-100 mesh. As soon as the research and development results were announced, suppliers in Canada and other countries that had mastered the core technology responded with a price cut, and domestic orders also increased. "Two days ago, the Key Laboratory of Materials Electromagnetic Process Research of the Northeastern University of China has just ordered a batch of powder from us for experimental research," said Han Wei, head of the Laboratory of Advanced Manufacturing Powder Research Center. It is understood that the center has now achieved mass production of high-profile spherical titanium alloy powder with an annual output of 15 tons. At present, the center is applying for international quality technology system certification. After passing the certification, these key raw materials for 3D printing can be exported and compete with foreign suppliers. Beach Umbrella,Best Beach Umbrella,Beach Outdoor Umbrellas,Beach Parasol Shaoxing Shangyu Sansan Umbrella Co., Ltd , https://www.sansan33.com