Molybdenum Block, Vacuum Furnace Special Molybdenum Block, Molybdenum Shaped Parts, Purity ≥ 99.95%, Can Be Customized According to Drawings

Molybdenum blocks and special molybdenum shaped parts for vacuum furnaces: high purity customization and high temperature applications
Molybdenum block and vacuum furnace special molybdenum shaped parts as high-end metal materials, with its high purity (≥99.95%), high temperature resistance (melting point 2620ºC) and precision machining characteristics, in aerospace, semiconductor, vacuum heat treatment and other fields play an irreplaceable role. The following are detailed introductions from four aspects: material characteristics, processing technology, application scenarios and industry cases:
First, material characteristics and advantages
High purity and stability
Molybdenum block purity ≥99.95%, impurity elements (such as iron, nickel) strictly controlled below 0.05%, to ensure that no oxidation precipitation at high temperature, suitable for semiconductor sputtering targets and other precision scenes.
Low thermal expansion coefficient and high thermal conductivity (138 W/m·K) can reduce thermal stress and deformation in vacuum furnaces and extend equipment life.
High temperature and corrosion resistance
In vacuum or inert gas can withstand 2000ºC high temperature for a long time, excellent oxidation resistance (above 500ºC start weak oxidation), suitable for nuclear fuel sintering, sapphire growth and other extreme environment.
Strong corrosion resistance to strong acid, alkali and molten metal (such as glass, zinc liquid), widely used in chemical reactors, glass furnace lining.
Mechanical property
Tensile strength ≥800 MPa, hardness 5.5 Mohs, both high strength and ductility, can be formed by hot rolling, cold working complex shape.
Second, custom processing technology
Precision forming process
CNC machining: Using CNC turning, milling, laser cutting and other technologies to support high-precision machining of shaped parts (such as molybdenum boat, crucible, heat shield), tolerance up to ±0.05mm.
Powder metallurgy: High density molybdenum blocks (density ≥ 10.2g /cm³) are prepared by ball milling mixing, cold isostatic pressing and high temperature sintering (1900-2100ºC).
Surface treatment and finishing
Surface treatment: Black skin (original sintered surface), alkali washing (removal of oxide layer), grinding (Ra≤0.4μm) and other options, suitable for different scenarios.
Welding and assembly: electron beam welding or vacuum brazing technology is used to achieve the composite structure of molybdenum block and tungsten, tantalum and other materials to improve the comprehensive performance.
Brand and specification customization
Support Mo1 (pure molybdenum), MoLa (molybdenum lanthanum alloy), TZM (molybdenum titanium zirconium carbon alloy) and other grades, to meet different temperature and strength requirements.
Size range: molybdenum plate (thickness 0.1-200mm), molybdenum rod (diameter 1-500mm), molybdenum shaped parts (customized according to drawings).
Third, the core application of vacuum furnace molybdenum block
Heating element and heat shield
Molybdenum heating body: used in vacuum sintering furnace, reduction furnace, working temperature up to 2000ºC, replacing traditional tungsten wire to reduce costs.
Molybdenum heat shield: By riveting or welding multi-layer molybdenum sheet, reduce heat loss and protect the furnace body, thermal efficiency increased by more than 30%.
Vacuum furnace fittings
Molybdenum crucible and boat: withstand the high temperature melting environment of sapphire and monocrystal silicon growth furnace, purity ≥99.95% to avoid pollution.
Connectors and fasteners: molybdenum bolts, gaskets, etc. maintain dimensional stability in the vacuum furnace to avoid the risk of leakage caused by thermal deformation.
Special scenario application
Nuclear industry: Molybdenum mesh for nuclear fuel sintering furnace, withstand 1800ºC high temperature radiation environment.
Semiconductor manufacturing: molybdenum target support, vacuum pump components, to ensure the stability of sputtering process.
Iv. Industry cases and supplier capabilities
Typical vendor technology
Baoji Bilong Metal: Provide customized services, products cover molybdenum plate, molybdenum boat, molybdenum crucible, etc., delivery cycle 7-15 days, purity ≥99.95%.
Luoyang Sigma electric furnace: specializing in vacuum furnace molybdenum accessories, molybdenum insulation screen service life of more than 2000 hours, temperature resistance 2200ºC.
Quality control system
GDMS (Glow discharge mass spectrometry) was used to detect the purity, metallographic analysis to verify the grain size (≤50μm), and X-ray inspection to ensure no internal defects.
5. Future trends and market prospects
With the growth of demand for high-temperature materials in semiconductor and new energy industries, the molybdenum block and shaped parts market will continue to expand. It is expected that by 2025, the global molybdenum products market will exceed 12 billion US dollars, of which vacuum furnace special molybdenum accessories accounted for 35%. Technology upgrading directions include:
Nano-coating technology: Molybdenum base composite coating is developed to improve wear resistance and thermal shock resistance.
Intelligent processing: AI algorithm is introduced to optimize CNC path planning and shorten the customization cycle.
Sum up
Molybdenum blocks and special molybdenum shaped parts for vacuum furnaces have become key materials in high-end manufacturing due to their high purity, high temperature resistance and precision machining capabilities. Through customized services and technological innovation, companies can meet the demanding needs of aerospace, semiconductor and other industries, and promote industrial upgrading and technological breakthroughs.