Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
4 results about "Medium frequency" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Medium frequency (MF) is the ITU designation for radio frequencies (RF) in the range of 300 kilohertz (kHz) to 3 megahertz (MHz). Part of this band is the medium wave (MW) AM broadcast band. The MF band is also known as the hectometer band as the wavelengths range from ten to one hectometer (1,000 to 100 m). Frequencies immediately below MF are denoted low frequency (LF), while the first band of higher frequencies is known as high frequency (HF). MF is mostly used for AM radio broadcasting, navigational radio beacons, maritime ship-to-shore communication, and transoceanic air traffic control.
Induction normalizing method for steel rail
InactiveCN109593941AThe skin effect is obviousCool down in timeFurnace typesIncreasing energy efficiencyMedium frequencyFree cooling
Owner:SHANGHAI UNIV OF ENG SCI
Treatment chuck structure for facilitating negative-pressure adsorption
Owner:CHENGDU TRINIDAD ELECTRONICS EQUIP
Automobile wheel hub pressing-in type shaft head processing method
InactiveCN104801933ASimple process routeImprove fatigue strengthFurnace typesHeat treatment furnacesMedium frequencyEngineering
The invention discloses an automobile wheel hub pressing-in type shaft head processing method, which is used for processing and manufacturing an automobile wheel hub pressing-in type shaft heads made of 40Gr alloy steel materials. The processing method sequentially comprises the following steps of blanking, heating, extrusion forming, coarse processing, heat processing and fine processing, and is characterized in that the medium frequency induction heating is adopted in the heating step, according to the medium-frequency induction heating, blanks obtained in blanking is heated to the temperature T in the time t, the time t is between 35s and 50s, and the temperature T is between 1135 DEG C and 1150 DEG C. The process route is favorable for improving the product quality of the pressing-in type shaft head.
Owner:CHENGDU LINGCHUAN SPECIAL IND
Special copper alloy and manufacturing method thereof
InactiveCN100523236CConductiveImprove thermal conductivityMetal/alloy conductorsRare-earth elementElectric power
The invention relates to a novel high-strength high-conductivity copper-based alloy and preparation method thereof, which belongs to copper-based electrical material. The chemical compositions of the weight percentage of the copper-based electrical alloy are 0.01-5.0Eu, 0.01-5.0Gd, 0.01-5.0Er, 0.01-3.0C and Cu which holds the weight percentage. The process for preparing the copper-based alloy is to allocate Cu, Eu, Gd, and Er (mixed rare earth element) according to the composition proportion of the alloy design, melt the mixture in the vacuum medium-frequency and fuse the mixture in the powder-making device, fast solidify the inert gas to atomize, and then CuEuGdEr alloy powder is produced. The powder is mixed with C powder by mechanical alloying, and then the mixed powder is processed by the processing technique of isostatic cool pressing formation, sinter, extrusion and the like to achieve the production of pipe, rod or sheet. The alloy material is characterized by good heat and electrical conductivity, large strength of room temperature, high resoftening temperature and high conductive rate, which can be used as conducting bar, resistance welding electrode, blasting fuse frame, conducting bridge, commutator and the like in the industries of electric power, electrotechnology, electronics and electromechannics.
Owner:KUNMING INST OF PRECIOUS METALS
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap