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目前显示的是 八月, 2024的博文

Knowledge about TZM Alloy

  TZM material is an alloy of 0.50% Titanium, 0.08% Zirconium and 0.02% Carbon with the balance Molybdenum and is typically manufactured by powder metallurgy or arc-casting processes. It has a higher recrystallization temperature, higher creep strength & hardness, and higher tensile strength than pure molybdenum. In addition, TZM exhibits good thermal conductivity, low vapor pressure, good corrosion resistance and is machinable.   TZM Molybdenum Physical Properties: Density: 10.22g/cc, 0.37lb/in3 Melting Point: 2623°C, 4753°F Thermal Conductivity: 0.48 Cal/cm2/cm°C/sec Specific Heat: 0.073 Cal/gm/°C Coefficient of Linear Thermal Expansion: 2.50 micro-in/°F x 10-6 Electrical Resistivity: 6.85 micro-ohm-cm   The molybdenum TZM is a normally utilized constructional material for high-temperature applications. These microstructural aspects significantly affect quality at raised temperatures. By methods for carbide-reinforcing TZM features impro...

Useful Information of Machined Tantalum

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  Tantalum was discovered by Swedish chemist AG Ekeberg in 1802, it is mainly present in tantalite and co-exists with niobium. Tantalum has moderate hardness and is full of ductility and can be drawn into filament thin foil. Tantalum has excellent chemical properties and very high corrosion resistance; it also has high melting point. Due to its excellent corrosion resistance, tantalum is widely used in electronics, metallurgy, steel, chemical, carbide, atomic energy, superconducting technology, automotive electronics, aerospace and medical industry. Tantalum solid products can be produced by arc cast or PM. Here we introduce the applications and basic information for shaped tantalum products Tantalum plate , strip, foil: Tantalum plate has very strong corrosion resistance, which is second only to gold and platinum. Therefore, tantalum plate is widely used in chemical reaction equipment such as the coating of reactor, valves, heat exchangers, protection systems and water tanks. ...

Tungsten tube-High density & melting point metal tube

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  Tungsten tubes are drilled from tungsten bars / rods, W tube with massive OD are going to be mold directly.   Tungsten – periodic symbol W - lays claim to the very best freezing point of all components. This characteristic combined with a superb ability to resist thermal shock enhances its ability to perform well as a conductor. Rocket cones, that should stand up to fast temperature changes and recurrent on and off cycles, area unit typically manufactured from tungsten. Tungsten's density conjointly permits it to expeditiously block radiation from sure areas whereas directional it to others. It will direct and form a beam of radiation, permitting doctors additional exactitude and management whereas treating cancerous tissue. With the employment of tungsten devices and shields, doctors area unit ready to target cancerous areas, whereas at the same time shielding healthy tissue from the harmful effects of radiation. Application The quartz production method uses c...

Porous Titanium in Next-Generation PEMFCs

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  Porous titanium has found a wide variety of unique and important applications including filtration, separation, catalyst supporting, gas absorbing, gas sparging, current collection, and medical implantation.  Manufacture process for porous titanium Raw titanium powder preparation—Cold isostatic pressing or rolling—Sintering in high temperature & vacuum furnace—Machined to size—Assembled to filter if required Liquid/gas diffusion layers (LGDLs) play a crucial role in electrochemical energy technology and hydrogen production, and are expected to simultaneously transport electrons, heat, and reactants/products with minimum voltage, current, thermal, interfacial, and fluidic losses.  Porous titanium exhibits excellent properties when it is used as the anode GDL, because of its unique three-dimensional strut structure promoting highly efficient catalytic reactions. Furthermore, it shows superior corrosion resistance with almost no thickness and weight changes in the acc...