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2010-2013

2010-2013

(Summary description)Beginning in 2010, the company moved the Zhuzhou laboratory to the old factory building of Zhongyi Refrigerator Factory in Tianxin District, Changsha, and passed the qualification assessment of the "Safety Production Standardization Level 3 Enterprise" by the Changsha Work Safety Supervision Administration;

2010-2013

(Summary description)Beginning in 2010, the company moved the Zhuzhou laboratory to the old factory building of Zhongyi Refrigerator Factory in Tianxin District, Changsha, and passed the qualification assessment of the "Safety Production Standardization Level 3 Enterprise" by the Changsha Work Safety Supervision Administration;

Information

Beginning in 2010, the company moved the Zhuzhou laboratory to the old factory building of Zhongyi Refrigerator Factory in Tianxin District, Changsha, and passed the qualification assessment of the "Safety Production Standardization Level 3 Enterprise" by the Changsha Work Safety Supervision Administration;

UMM plans to cooperate with China Aerospace Materials Research Institute to develop and test "refractory metal special powder materials".

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Advantages and disadvantages of friction stir welding
 Advantages and disadvantages of friction stir welding
The main advantages of friction stir welding are as follows:
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The main advantages of friction stir welding are as follows:
What fields are friction stir welding generally used in
What fields are friction stir welding generally used in
Everyone may have heard of Friction Stir Welding (FSW), which was officially launched in 1991. As soon as it appeared, it attracted the attention of the world.
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Everyone may have heard of Friction Stir Welding (FSW), which was officially launched in 1991. As soon as it appeared, it attracted the attention of the world.
Specialized solutions for milling, cutting and drilling tool base materials for high temperature alloys, refractory metals and other parts
Specialized solutions for milling, cutting and drilling tool base materials for high temperature alloys, refractory metals and other parts
Ultra Minor Metals Ltd(UMM) has more than ten years of experience in the application and development of alloy trace addition, and provides rare, scattered and rare precious metal element addition solutions for various alloy manufacturing enterprises. According to the difficulties encountered in milling, cutting and drilling of high-temperature alloys, refractory metals and other parts and components reported by many users in recent years, UMM has finally successfully developed after five years of joint research and development tests with leading domestic enterprises. In order to add ruthenium, rhenium, osmium and other elemental high-purity ultrafine powders specially used to add to the base material of such special cemented carbide tools, or Co-Ru, Re, Os binary and ternary pre-alloyed mixed powders, we also warmly welcome all major High-performance alloy tool manufacturing enterprises and our company jointly develop various special customized tool material grades.
See more information
Ultra Minor Metals Ltd(UMM) has more than ten years of experience in the application and development of alloy trace addition, and provides rare, scattered and rare precious metal element addition solutions for various alloy manufacturing enterprises. According to the difficulties encountered in milling, cutting and drilling of high-temperature alloys, refractory metals and other parts and components reported by many users in recent years, UMM has finally successfully developed after five years of joint research and development tests with leading domestic enterprises. In order to add ruthenium, rhenium, osmium and other elemental high-purity ultrafine powders specially used to add to the base material of such special cemented carbide tools, or Co-Ru, Re, Os binary and ternary pre-alloyed mixed powders, we also warmly welcome all major High-performance alloy tool manufacturing enterprises and our company jointly develop various special customized tool material grades.
The principle of friction stir welding
The principle of friction stir welding
Friction stir welding refers to the use of the heat generated by the friction between the high-speed rotating welding tool and the workpiece to partially melt the material to be welded.
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Friction stir welding refers to the use of the heat generated by the friction between the high-speed rotating welding tool and the workpiece to partially melt the material to be welded.
Application of friction stir welding
Application of friction stir welding
Friction stir welding is a solid-state connection method. In terms of connection principle, for the metal materials to be connected, as long as the material has a stirring head material that can work effectively in the forging state, the friction stir welding method can be used. to connect.
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Friction stir welding is a solid-state connection method. In terms of connection principle, for the metal materials to be connected, as long as the material has a stirring head material that can work effectively in the forging state, the friction stir welding method can be used. to connect.
CT machine X-ray tube anode rotating target
CT machine X-ray tube anode rotating target
When the CT tube is working, the anode target produces X-rays under the bombardment of high-energy electron beams, but the energy conversion efficiency is very low. Only about 1% of the energy is converted into X-ray energy, and the remaining 99% of the energy is converted into heat energy. The local temperature can be as high as 2600°C. Therefore, the rotating anode target needs to have the characteristics of high high temperature strength, good thermal shock resistance, and fast heat dissipation. Therefore, the density of the target material, the content of alloy impurity elements, and the brazing bonding strength of graphite and molybdenum alloys affect the service life of the target. Key factor.
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When the CT tube is working, the anode target produces X-rays under the bombardment of high-energy electron beams, but the energy conversion efficiency is very low. Only about 1% of the energy is converted into X-ray energy, and the remaining 99% of the energy is converted into heat energy. The local temperature can be as high as 2600°C. Therefore, the rotating anode target needs to have the characteristics of high high temperature strength, good thermal shock resistance, and fast heat dissipation. Therefore, the density of the target material, the content of alloy impurity elements, and the brazing bonding strength of graphite and molybdenum alloys affect the service life of the target. Key factor.
MOCVD irreplaceable "rhenium" heater member
MOCVD irreplaceable "rhenium" heater member
Tungsten heating devices will become brittle after being recrystallized after being used at high temperature, and will easily break under impact or vibration. Compared with tungsten, rhenium has a higher recrystallization temperature, and the recrystallized rhenium is not a brittle material, but its strength is reduced. As a non-stressed heating device, it still has good working ability and has the best high temperature stability. High creep strength. Therefore, rhenium is used to manufacture MOCVD heating devices. It is the most appropriate choice in consideration of performance and cost. No other material can replace it.
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Tungsten heating devices will become brittle after being recrystallized after being used at high temperature, and will easily break under impact or vibration. Compared with tungsten, rhenium has a higher recrystallization temperature, and the recrystallized rhenium is not a brittle material, but its strength is reduced. As a non-stressed heating device, it still has good working ability and has the best high temperature stability. High creep strength. Therefore, rhenium is used to manufacture MOCVD heating devices. It is the most appropriate choice in consideration of performance and cost. No other material can replace it.
About rhenium technology
About rhenium technology
Rhenium is a sparse, refractory metal. Scattered means that the content of rhenium in the earth's crust is scarce and dispersed, and refractory means that the melting point of rhenium metal is extremely high, with a melting point of 3180°C, second only to tungsten, ranking second among all metals. Because of its compound's excellent properties such as catalytic activity, high temperature resistance, and corrosion resistance, it is mainly used in petroleum smelting catalysts, thermoelectric superalloys, electronic tube structural materials, special aerospace alloys, and environmental protection.
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Rhenium is a sparse, refractory metal. Scattered means that the content of rhenium in the earth's crust is scarce and dispersed, and refractory means that the melting point of rhenium metal is extremely high, with a melting point of 3180°C, second only to tungsten, ranking second among all metals. Because of its compound's excellent properties such as catalytic activity, high temperature resistance, and corrosion resistance, it is mainly used in petroleum smelting catalysts, thermoelectric superalloys, electronic tube structural materials, special aerospace alloys, and environmental protection.
About MOCVD
About MOCVD
2020-12-01
MOCVD (Metal Organic Chemical Vapor Deposition, metal organic chemical vapor deposition) technology, also known as OMVPE, MOVPE, etc., is a new technology for preparing compound semiconductor single film proposed by Rockwell in 1968. The MOCVD method is to decompose and react the metal organic compound diluted in the carrier gas and the hydride of the V or VI element on the heated epitaxial substrate, and the reaction product is deposited on the epitaxial substrate to form A kind of epitaxial film technology, the use of this technology can grow nano-level high-quality film, it is precisely because of this feature that MOCVD technology is widely used in the production and manufacturing of semiconductor devices. T
See more information
MOCVD (Metal Organic Chemical Vapor Deposition, metal organic chemical vapor deposition) technology, also known as OMVPE, MOVPE, etc., is a new technology for preparing compound semiconductor single film proposed by Rockwell in 1968. The MOCVD method is to decompose and react the metal organic compound diluted in the carrier gas and the hydride of the V or VI element on the heated epitaxial substrate, and the reaction product is deposited on the epitaxial substrate to form A kind of epitaxial film technology, the use of this technology can grow nano-level high-quality film, it is precisely because of this feature that MOCVD technology is widely used in the production and manufacturing of semiconductor devices. T
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