Spun Molybdenum Crucible

    In the field of precision smelting and semiconductor thermal field, the performance of containers depends not only on the purity of the material, but also on the density of its microstructure. The Spun Molybdenum Crucible (Spun Molybdenum Crucible) adopts the Power Spinning process, and through the layer-by-layer plastic deformation of high-molybdenum plates, it has a thin and light wall thickness, and at the same time has a physical strength close to the theoretical limit.

1. Core performance: a leap in structure spawned by plastic deformation

    The spinning process endows the molybdenum crucible with characteristics that are quite different from the process:

    Anisotropic strength: Strong spinning makes the metal grain stretch along the wall to form a tight fibrous structure, which greatly improves the thermal shock resistance and creep resistance.

    Extreme density: the density can reach 10.1 g/cm ³-10.22 cm ³, which is significantly better than sintered parts, and can effectively prevent the penetration of low molecular weight melts.

    Excellent heat conduction: The thinner and denser wall thickness ensures rapid penetration and uniform distribution of heat, and is the choice of precise temperature control technology.

2. Chemical composition and technical indicators

    We only use high-quality and high-purity molybdenum plates that have been rolled for many times as raw materials to ensure that the impurity content is controlled at PPM level.

    Standard of Implementation: ASTM B386 (Standard for Molybdenum and Molybdenum Alloy Plate)/Internal Ultra High Density Spinning Specification.

3. Lean Process: "Fingertip Jump" of Metal

    Blank selection: select hot-rolled/cold-rolled molybdenum wafers with uniform texture and no delamination.

    Local warm processing: Heating the blank to below the recrystallization temperature, and carrying out high-speed spinning molding in the protection.

    Multi-pass thinning: Through the accuracy of the CNC spinning wheel, the thickness of the sidewall reaches the predetermined size, and the organization is strengthened at the same time.

    Precise side and stress relief: carry out edge micron-level correction, and release molding stress in the vacuum furnace to prevent deformation when used at high temperature.

4. Product specifications and basic information parameters

    The spinning process is good at manufacturing "thin-walled deep-cavity" structures, and the typical specifications are as follows:

    Diameter (OD): 10mm-500mm

    Wall thickness (Wall): 1.0 mm-6.0 mm (for lighter dead weight)

    Height: up to 2-3 times the diameter

    Surface finish: Ra ≤ 1.6 um (spinning texture can reach mirror surface after post-polishing)

5. Surface Treatment: Balance of Cleanliness and Cleanliness

    Bright Spun: Retains the dense texture unique to the spinning process, and has a very low deflation rate.

    Electro-polishing: Removes the surface fine stress layer, extremely high wettability resistance, easy to melt recovery.

    Sandblasting treatment: surface heat dissipation area, suitable for specific thermal field balance needs.

6. Product core advantages: Why do senior designers turn to spinning technology?

    Significant cost-effectiveness: Compared with machining, the material utilization rate of the spinning process is increased by 40%-60%. In the face of expensive molybdenum material costs, this means a more competitive unit price.

    Lightweight design: Thinner wall thickness is achieved under the premise of ensuring strength, which greatly increases the thermal inertia of the entire heating system and has a faster response speed.

    Seamless integration: integral forming, no weld seam, no weakness, completely eliminating the risk of cracking of welding crucible at stress concentration.

7. Application fields: covering high-tech manufacturing

    LED industry: Containers for carrying high-purity metallic organics in MOCVD equipment.

    Rare earth refining: Used for high-temperature smelting of rare earth oxides, with strong anti-permeability.

    Vacuum evaporation: The material source carrying container when manufacturing the coating of precision optical lens.

    Laboratory smelting: research and development of small batches of high-purity alloys that require a rapid cycle of rising and cooling.