Baoji Nonferrous Metals Co., Ltd. Sanli Abstract: This paper mainly research results Baoji City legislature's new metal materials research and development center, specifically for superhard abrasive superhard alloy base material industry research and development as an example. This paper expounds the nine characteristics of superhard abrasive titanium alloy matrix materials and traditional matrix materials, and its possibility and reliability in a wide range of applications in aviation, navigation, shipbuilding and medical fields. Key words: titanium alloy matrix; diamond; cubic boron nitride; dynamic balance; high strength; corrosion resistance Abstract: In this paper, Baoji Sanli Non-ferrous Metals and Materials R & D achievements in the development, industry-specific R & D Super-hard super-hard material grinding titanium alloy matrix as an example. Superhard Abrasives described titanium alloy substrate material compared with traditional research-based materials show excellent properties and nine in the aviation, marine, shipbuilding and other fields of medical possibility and reliability . of widely used Key words: titanium alloy Substrate; diamond; cubic boron nitride; balancing; high strength; corrosion resisting Sanli Baoji Nonferrous Metals Co., Ltd. is titanium and titanium alloy wire, rod, sheet and tubing, and other well-known manufacturers . The company's registered trademark "Bao Li Titanium", the leading products are titanium, zirconium, hafnium, molybdenum, nickel and super hard material grinding wheel titanium alloy matrix, super hard materials used in the development of titanium cup, zirconium cup, molybdenum cup and other specifications Shaped cup. High-tech, high-efficiency, high-productivity product system. For more than 20 years, it has been the first technology-based enterprise in China to develop and produce rare metal materials for the domestic and international superhard materials industry. We adhere to the road of innovation, adhering to the high-tech and high-efficiency management policy based on market application development, and set up a new metal material research and development center headed by a general manager and specialized in science and technology personnel. After cooperation with Henan University of Technology, Zhengzhou Abrasives Grinding Research Institute and other research institutes, and actively in-depth Zhengfei, Xifei and other aviation companies and research institutes for market research. And after testing by users in Japan and other countries, the super-hard abrasive titanium alloy matrix we developed has been highly evaluated and recognized by users at home and abroad, especially the titanium alloy matrix material was first used in the super-hard mold base. Nowadays, through continuous improvement and innovation, it has become a professional manufacturer with titanium alloy matrix with world advanced level and mechanical manufacturing technology. In recent years, after extensive market research and continuous development of the application market, through the joint technical cooperation between domestic and foreign superhard material manufacturers, and with the support of experts from relevant research institutes such as the Zhengzhou Abrasives Grinding Research Institute of the former Ministry of Machinery Industry. To carry out in-depth research and development and processing of superhard abrasive titanium alloy base materials, we have formed a patented product of titanium alloy base material with independent innovation and independent intellectual property technology, and applied for national patents. The patent application was approved in 2009, and the patent was approved. The number is 200910022162.4. We have investigated the superhard materials industry and market at home and abroad. In the past, the production of superhard mold base materials was mainly based on alloy steel and aluminum alloy materials. The new super-hard material developed nowadays, the super-hard mold titanium alloy base material, is increasingly exposed due to its superior chemical and physical properties and superior machinability of other matrix materials, and this special material and other matrix materials Compared with the remarkable features of nine aspects. At present, through the use of the new super-hard titanium alloy matrix material provided by Sanli Company, several scientific research institutions such as Zhengzhou Abrasives Grinding Research Institute have jointly developed super-hard abrasive titanium alloy base grinding wheel and super high-speed diamond grinding tool and cube. Boron nitride abrasives, this research and development can be widely used in aerospace, supersonic aircraft, spacecraft, marine vessels, engine shafts, starters and high-precision parts processing such as petrochemical, CNC machine tools, medical equipment, automobile manufacturing. And fill the gaps in related fields in China. And it can improve the fatigue strength of superhard abrasives and prolong the service life, so that the super-hard mold developed by titanium alloy matrix material is considered by domestic and foreign enterprises as high speed, high efficiency, low grinding cost, low environmental pollution and high A reliable product with performance. Titanium alloy base materials, supported by the Zhengzhou Abrasives Grinding Research Institute of the former Ministry of Machinery Industry, in the cooperative tracking test of related companies such as Xifei, Zhengfei, USA, Japan, Germany, etc., and other base materials traditionally selected for use. In comparison, the titanium alloy matrix has nine physical and mechanical properties: The density of the titanium alloy is 4.51 g/cm, which is 57% of the steel alloy matrix, less than twice that of the aluminum alloy matrix, and the strength is three times larger than that of the aluminum alloy matrix. The specific strength (tensile strength/density) of the titanium alloy matrix is ​​the largest among the commonly used industrial alloys. The specific strength of titanium alloy is 3.5 times that of stainless steel, 1.3 times that of aluminum alloy matrix and 1.7 times that of magnesium alloy. The strength of the titanium alloy matrix is ​​10 times higher than that of the aluminum alloy substrate at 300 degrees Celsius to 350 degrees Celsius. It is an essential matrix structure material for the superhard material industry. Table 1. Comparison of Density and Specific Strength of Titanium Alloy Matrix and Other Metals The bluntness of titanium alloy matrix material depends on the presence of oxide film, and its corrosion resistance in oxidizing medium is much better than in reducing medium. High rate corrosion can occur in reducing media, and titanium alloy substrates are not corroded in some corrosive media: seawater, wet chlorine, chlorite, aluminate, nitric acid, chromic acid, metal chlorides, Sulfides and organic acids. Moreover, the super-hard material titanium alloy matrix can be used in harsh environments, and the static and dynamic balance are not affected, and the stability and reliability can be maintained. Titanium alloy matrix materials have a melting point of up to 1668 degrees Celsius and a boiling point of 3400 degrees Celsius, which is higher than iron and nickel metal. Therefore, titanium alloy has an excellent foundation as a light heat resistant material. High heat resistance, its working temperature is 500 degrees Celsius. It maintains good mechanical properties after high speed operation and long-term work. Usually the titanium alloy matrix is ​​above 550 degrees Celsius, while the stainless steel matrix loses its original high mechanical properties at 310 degrees Celsius. In the Japanese investigation, it was found that molds produced with other alloy substrates, if used in numerical control equipment, will give an alarm signal and cannot be put into use. After using the titanium alloy body mold, the operation is very normal. Therefore, it is most suitable for high precision, aero engines, compressors, turbine disks, blade starters, automobiles, hydraulics, bearings, space compressors, CNC machines with high precision and medical equipment. 
Figure 1 , titanium alloy substrate 
Figure 2. Titanium alloy shaped base titanium alloy matrix can work in low temperature environment and is used in the range of 253 degrees Celsius to 600 degrees Celsius. Its strength increases with decreasing temperature, but the plasticity is not reduced much. It still has good ductility and toughness at low temperature, and is suitable for use at ultra-low temperature. Titanium alloy matrix can maintain its original mechanical properties at low temperature and ultra-low temperature. Titanium alloy base materials are not magnetic, and they are not magnetically produced by processes such as processing. Super hard abrasive titanium alloy substrate and can be processed under strong magnetic field environment, and it is also non-electrostatic, does not produce electromagnetic in the magnetic field, the workpiece attachment is not attached to the titanium alloy substrate, does not affect the equipment Operation, stability, precision and dynamic balance. Since the magnetic property of the titanium alloy is 3.2 × 10 minus 6 power (unit is cubic centimeters per gram), the titanium alloy base material is not magnetized in a strong magnetic field. The thermal conductivity of titanium is 0.036 cal / (cm * s * c), and by adding rare metal materials, the thermal conductivity of the titanium alloy matrix material developed is only 0.019 cal / (cm * s * c), it is only steel 1/5, 1/13 of aluminum alloy, 1/25 of copper, and low thermal conductivity can be utilized in the grinding of superhard material titanium alloy matrix molds. Table 2 - Comparison of Thermal Conductivity of Titanium Alloy Substrate and Other Metal Substrates Therefore, high temperature heat is not easily transmitted to the titanium alloy substrate during grinding of the workpiece, and the base body is not deformed or damaged by overheating. The titanium alloy matrix has a small elastic modulus, and the titanium alloy has an elastic modulus of about 55% of that of iron. The low modulus of elasticity when used as a structural material is a drawback. However, it is a very good structural material for surgically implanting titanium alloy and super hard mold titanium alloy matrix. The elastic modulus of the titanium alloy material is close to the natural quantity of the human body. The elastic modulus of the superhard abrasive titanium alloy matrix can maintain a good speed balance with the dynamic balance and high-speed rotating substrate, and can make it vibrate and swing during high-speed operation. Small, is the material of choice for automated high-speed CNC machine tools. Table 3 , the elastic modulus of titanium alloy matrix and other metals compared to titanium alloy matrix material tensile strength of 686-1176Mpa, up to 1764Mpa. Titanium alloy substrates are comparable in strength to many steels, but are preferred over strength titanium alloy substrates. The titanium alloy matrix material has a compressive strength ratio lower than its tensile strength and slightly higher than the tensile strength. The shear strength is generally 1.2-2.0 times the tensile strength. Under normal atmospheric atmosphere, the permanent strength after processing and annealing is 0.5-0.65 times, and the hardness value of the titanium alloy matrix in the annealed state is 32-38HRC, which is equivalent to 298-349HB. The titanium alloy matrix has a high fracture toughness and is excellent in crack propagation resistance. Because the titanium alloy matrix can maintain certain mechanical properties at high temperatures, it can still maintain its original mechanical properties at low temperature and ultra-low temperature. Table 4 Comparison of Tensile Strength and Yield Strength of Titanium Alloy Matrix and Other Metals Titanium alloy matrix has high mechanical processing, precision, parallelism and perpendicularity. Different alloying elements are added by melting to improve strength and hardness, and to ensure dynamic and static balance. The performance improves the recyclability of the finished matrix material and is a high performance material with low environmental pollution. Based on the superior performance of superhard material abrasive titanium alloy matrix materials, it has wide application value and obvious benefits in aerospace, engine shaft, aircraft starter frame, launching mechanism, grinding processing, etc. As a new matrix material, it improves The level of technological innovation and technological advancement in the field of superhard materials, and achieved good results through practical application. References: Author's profile: Yan Lijun, female, born in 1950, senior economist, Baoji Sanli Nonferrous Metals Co., Ltd., chairman and general manager. Mobile, E-mail: Writer's profile: Lijun Zhai, female, born in 1950, senior economist, the president of Baoji Sanli Non-ferrous Co., Ltd. Tel: 13038484472, E-mail:
Figure 1 , titanium alloy substrate Figure 2. Titanium alloy shaped base titanium alloy matrix can work in low temperature environment and is used in the range of 253 degrees Celsius to 600 degrees Celsius. Its strength increases with decreasing temperature, but the plasticity is not reduced much. It still has good ductility and toughness at low temperature, and is suitable for use at ultra-low temperature. Titanium alloy matrix can maintain its original mechanical properties at low temperature and ultra-low temperature. Titanium alloy base materials are not magnetic, and they are not magnetically produced by processes such as processing. Super hard abrasive titanium alloy substrate and can be processed under strong magnetic field environment, and it is also non-electrostatic, does not produce electromagnetic in the magnetic field, the workpiece attachment is not attached to the titanium alloy substrate, does not affect the equipment Operation, stability, precision and dynamic balance. Since the magnetic property of the titanium alloy is 3.2 × 10 minus 6 power (unit is cubic centimeters per gram), the titanium alloy base material is not magnetized in a strong magnetic field. The thermal conductivity of titanium is 0.036 cal / (cm * s * c), and by adding rare metal materials, the thermal conductivity of the titanium alloy matrix material developed is only 0.019 cal / (cm * s * c), it is only steel 1/5, 1/13 of aluminum alloy, 1/25 of copper, and low thermal conductivity can be utilized in the grinding of superhard material titanium alloy matrix molds. Table 2 - Comparison of Thermal Conductivity of Titanium Alloy Substrate and Other Metal Substrates Therefore, high temperature heat is not easily transmitted to the titanium alloy substrate during grinding of the workpiece, and the base body is not deformed or damaged by overheating. The titanium alloy matrix has a small elastic modulus, and the titanium alloy has an elastic modulus of about 55% of that of iron. The low modulus of elasticity when used as a structural material is a drawback. However, it is a very good structural material for surgically implanting titanium alloy and super hard mold titanium alloy matrix. The elastic modulus of the titanium alloy material is close to the natural quantity of the human body. The elastic modulus of the superhard abrasive titanium alloy matrix can maintain a good speed balance with the dynamic balance and high-speed rotating substrate, and can make it vibrate and swing during high-speed operation. Small, is the material of choice for automated high-speed CNC machine tools. Table 3 , the elastic modulus of titanium alloy matrix and other metals compared to titanium alloy matrix material tensile strength of 686-1176Mpa, up to 1764Mpa. Titanium alloy substrates are comparable in strength to many steels, but are preferred over strength titanium alloy substrates. The titanium alloy matrix material has a compressive strength ratio lower than its tensile strength and slightly higher than the tensile strength. The shear strength is generally 1.2-2.0 times the tensile strength. Under normal atmospheric atmosphere, the permanent strength after processing and annealing is 0.5-0.65 times, and the hardness value of the titanium alloy matrix in the annealed state is 32-38HRC, which is equivalent to 298-349HB. The titanium alloy matrix has a high fracture toughness and is excellent in crack propagation resistance. Because the titanium alloy matrix can maintain certain mechanical properties at high temperatures, it can still maintain its original mechanical properties at low temperature and ultra-low temperature. Table 4 Comparison of Tensile Strength and Yield Strength of Titanium Alloy Matrix and Other Metals Titanium alloy matrix has high mechanical processing, precision, parallelism and perpendicularity. Different alloying elements are added by melting to improve strength and hardness, and to ensure dynamic and static balance. The performance improves the recyclability of the finished matrix material and is a high performance material with low environmental pollution. Based on the superior performance of superhard material abrasive titanium alloy matrix materials, it has wide application value and obvious benefits in aerospace, engine shaft, aircraft starter frame, launching mechanism, grinding processing, etc. As a new matrix material, it improves The level of technological innovation and technological advancement in the field of superhard materials, and achieved good results through practical application. References: Author's profile: Yan Lijun, female, born in 1950, senior economist, Baoji Sanli Nonferrous Metals Co., Ltd., chairman and general manager. Mobile, E-mail: Writer's profile: Lijun Zhai, female, born in 1950, senior economist, the president of Baoji Sanli Non-ferrous Co., Ltd. Tel: 13038484472, E-mail:Trunnion Ball Valve,WCB Trunnion Ball Valve,3PC Ball Valve
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