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| C-Form | Helix Spring | Spiral Spring | Cu Parts | Pressure Guages |
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Yuyao Jintian Beryllium Copper Instrument Factory is a unique manufacturer of beryllium copper pressure gauge
in China. The factory is ISO 9001 Quality Certified and located at Moushan crossing of Hang Yong speedway, employs with more than 25 cadre staff, 80 percent of which are technical engineers who ensure the high quality and efficiency with a special focus on advanced techniques. Major products are beryllium copper tube, pressure gauge and beryllium metal products. We can supply all kinds of specifications of beryllium copper tube, pressure range of beryllium copper spring tube, beryllium copper pressure gauge, and X-ray beryllium windows materials which is widely used in various instruments. Please clicks on the links above for more information. |
Beryllium is one of the lowest-density metals. It has a remarkable combination of properties found in no other metal. It has 6 times the specific stiffness of steel.
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Beryllium has a very high melting point and it maintains useful mechanical properties up to much higher temperatures than most other metals, yet it is also prized for its excellent cryogenic properties.
Beryllium combines high thermal conductivity with the highest specific heat of any metal for superior thermal diffusivity, making it extremely useful for dissipating thermal transients. Beryllium has excellent damping characteristics. It is a low Z material, with the highest x-ray transparency of any engineering material. This fascinating metal has an extensive heritage in space structures, airborne, earth- and space-based optics, and the semiconductor, medical and nuclear industries. Designers continue to specify beryllium due to its unmatched capabilities for medical, aerospace, defense, information technology, scientific, nuclear and other applications |
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What is an X-Ray Window?
If one thinks about the principle on which a glass window on a building operates, it makes understanding how an x-ray window works much simpler. A glass window on a building performs two basic functions: it acts as a barrier between the environments inside and outside the building, while at the same time allowing visible light to pass through it. A beryllium x-ray window is an opaque piece of metal, often in the form of relatively thin-gauge beryllium sheet or foil, which follows the same principle. It acts as a barrier between the vacuum or inert gas environment inside an x-ray source tube or detector and atmospheric conditions external to the device, while at the same time allowing x-rays to pass through it. In the case of an x-ray source tube, beryllium permits the x-rays generated within the tube to be transmitted externally so that they can be used for their intended purpose. In the case of an x-ray detector, the beryllium permits external x-rays to penetrate inside of the instrument so that their presence can be recognized. Commercial X-Ray Window Applications Most commercial beryllium x-ray windows fall into one of two broad classifications: medical and industrial/analytical. X-ray source tubes with beryllium windows are used in a variety of medical diagnostic applications, including bone densitometry, computed tomographic (CT) scanning, mammography, and more. The use of beryllium windows in medical tubes has become more prominent since the development of metal body tubes for these applications. On the industrial/analytical front, beryllium windows are used in tubes for x-ray diffraction, x-ray fluorescence, baggage inspection, in-situ analysis, and more. The use of beryllium windows in industrial/analytical tubes and detectors continues to be of interest for a wide range of non-destructive testing (NDT) applications requiring imaging or analytical capabilities. Manufacture of Commercial X-Ray Windows Beryllium foil, in the shape of discs, rectangles, or arc segments, are joined to the window subassemblies by epoxy bonding, Electron Beam Welding, brazing, or diffusion bonding. Each technique has its own niche, whether it be the low cost approach of epoxy bonding that can only be used in low temperature applications without intense radiation, such as x-ray detectors, or diffusion bonding, used in many x-ray source tubes as a high volume production method for window subassemblies that must withstand high heat in the manufacturing process, high radiation levels, and many cycles of high heat load during use. Other processing may be done to the window, such as applying a metallic coating such as Tungsten, Silver, or Rhodium, to act as a transmission window. Protective coatings, such as BR-127 or aluminum, may be applied to the window to protect it from harsh environments. The method of manufacture and any additional processing depends on the end use, but as with all commercial applications, reliability and flexibility of the supplier is critical to keeping production running. Acoustics The fields of ultrasonics and high end commercial audio speakersare developing rapidly and specialists in this area are constantly looking for materials which will improve the sensitivities and efficiencies of their systems. Beryllium offer a unique combination of acoustic properties not found in any other structural materials and it is particularly attractive for the higher frequencies (>10 MHz) now coming into common use. Avionics Airborne and space-based electronics packages are consuming higher amounts of power, and designers of avionics suites continue to look for ways to deal with the excess heat output of these electronics. The superior thermal diffusivity of beryllium-based AlBeMet® and E Materials draws heat away from sensitive electronic components, reducing junction temperatures and increasing mean time between failure (MTBF). The high modulus of beryllium-based materials increases the resonant frequency of electronic assemblies and reduces transmissibility of shock loads, thereby increasing the reliability of electronics systems. The low density of beryllium-based engineered materials also saves mass, resulting in superior system performance. No other production materials combine the unique advantages found in AlBeMet® and E Materials for avionics applications. High Vacuum & Physics Research & Development Brush Wellman - Electrofusion Products designs and builds Ultra High Vacuum engineered products for all types of research and scientific projects. We specialize in the design, fabrication, and testing of high performance components and assemblies which require vacuum tightness, high temperature bakeouts, and/or highly accurate mechanical tolerances. Materials used for these products include copper, aluminum, titanium, stainless steel, and beryllium. SYNCHROTRON BEAMLINE WINDOWS BW-Electrofusion has built more actively-cooled synchrotron beamline beryllium window assemblies than all other manufacturers in the world combined. There are some key advantages which set us apart from the rest: 1) we are the only fully integrated manufacturer, performing all critical processing in-house, from the beryllium fabrication, to the design, to the joining and the qualification testing, 2) we offer the widest range of joining options, from epoxy bonding to electron beam welding to liquidus brazing to diffusion bonding, 3) BW-Electrofusion has been in the beryllium window assembly business since 1966, offering more combined years of expertise than any other company's staff. As engineers and scientists worldwide endeavor to improve window assembly designs, the most recent findings indicate that lower temperature processing, without sacrificing high temperature capability is a key element to optimal window performance. BW-Electrofusion's diffusion bonding process relies on lower temperature silver-based braze alloys, and we complete the metallurgical joint while remaining below the alloy's liquidus temperature, so as not to induce structurally-weakening grain growth in the beryllium material. In addition, our fixturing design combined with the lower temperature process gives us greater control over braze alloy flow than in a typical liquidus brazing operation. We have built assemblies by this method which have been in service for more than ten years without failing and at demanding sites such as DESY, CERN, Brookhaven, Argonne, Fermi, SLAC, KEK, INFN, ESRF, Daresbury, SPRing-8, INDUS-1, and others. While we can build to meet your specific requirements, we also offer a catalog of standard size Conflat flanges with diffusion bonded beryllium windows at greatly reduced lead times. BERYLLIUM BEAMPIPES Another distinct UHV engineered product manufactured at BW-Electrofusion is the beryllium beam pipe. We have built beam pipes over 100 feet in length (over 30 meters), with diameters ranging from 0.5" up to 24" (12.5mm to 600mm). End-fittings have been fabricated in a variety of materials--aluminum, stainless steel, and titanium. Fittings can be brazed, welded, or epoxy bonded to the central cylinder, and the beam pipe can be lined with other metals to enhance electrical conductivity, or receive a corrosion-resistant coating, depending on operational requirements. BERYLLIUM DOMES AND CYLINDERS BW-Electrofusion builds thin-walled beryllium domed and cylindrical windows for cryogenic applications. We can machine seamless windows below 0.010" (0.25mm) wall thickness, and form sheet and foil domes and cylinders of even thinner gauges, if necessary. We can also join the beryllium windows to UHV chambers, Conflat flanges, or custom-design fittings according to your needs. ULTRA HIGH VACUUM CHAMBER For UHV chambers with integral beryllium windows for particle physics research, BW-Electrofusion is the source. We offer design assistance to optimize the chamber for functionality and manufacturability. Consult us for solutions to your design challenges. Nuclear Beryllium is in demand for nuclear and scientific applications due to its low atomic number and low “Z” characteristics. The nuclear properties of beryllium, combined with its low density, are attractive characteristics for neutron reflectors and moderators in the design of reactors. Beryllium’s high scattering cross section makes it effective in slowing neutron speed to a level required for efficient reactor operation. This ability classifies beryllium as one of the few good solid moderators available. Its major application, however, is as a reflector. In this capacity, beryllium acts to scatter leaked neutrons back into the reactor core. Neutrons are conserved because of beryllium’s low thermal neutron capture cross section. Furthermore, beryllium acts to increase flux density through the Be9 (n, 2n) Be8 reaction. In nuclear fusion reactors, the low atomic number and high melting temperature of beryllium creates higher plasma purity, resulting in higher density operations. Specific End Uses and Applications Joint European Torus test reactor International Thermonuclear Experimental Reactor CERN LHC and Brookhaven RHIC Colliders Optics Beryllium and AlBeMet® have an extensive heritage in infrared and electro-optical applications. Optical components are mass-minimized and scanning rates increase when high-stiffness, low mass materials are used. Optics maintain their integrity over extended periods of time when made of materials that exhibit superior dimensional and temporal stability. Precision optics are sensitive to thermal transients, which are dissipated rapidly by materials like beryllium and AlBeMet®, that have high thermal diffusivity. The high damping rates of beryllium and AlBeMet® create optical components of unparalleled stability. These are some of the reasons that beryllium and AlBeMet® have been selected for airborne and space-based targeting optics and research telescopes like LANTIRN, Sniper, Arrowhead, and the James Webb Space Telescope. Ground-based research and targeting optics, like VLT, M1A2 and M-60 tank mirrors also benefit from the advantages of beryllium. No other production materials combine the unique advantages found in beryllium and AlBeMet® for optics applications. Airborne Structures Airborne structures that require low mass and high stiffness rely on beryllium for structural integrity, increasing system performance. Beryllium also dissipates thermal transients and dampens oscillations, creating a structure that minimizes thermal excursions and delivers superior stability. This important structure has flown on military helicopters for over 20 years. Space Structures Launch costs of space structures are in excess of $10,000/lb. Designers of space-based systems need engineering materials that are strong, light, and can withstand the space environment for the full length of their mission. The success of the mission also depends on other material characteristics, like thermal and electrical properties. Since beryllium is a metal prepared with no organic binders, it is not susceptible to harmful outgassing. Beryllium and AlBeMet® have been specified for many satellites, helping economize on launch costs. Specific End Uses and Applications Space Shuttle window frames and door systems Mars Rover Gravity Probe B Satellite Cassini Orbiter Spitzer Space Telescope, Hubble Space Telescope and its planned successor, the James Webb Space Telescope |
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| Address:Houshan Weijia Village Moushan Town, Yuyao City, Zhejiang Province, China Cell :86-13735370083 Tele:86-574-28860705 E-mail:beryllium.ningbo@gmail.com Copyright © - CubeIinst.com - All Rights Reserved |