Custom Molybdenum Crucibles
Manufactured from high-purity molybdenum under strict ISO 9001:2015 quality management standards, our custom crucibles are engineered for applications requiring reliable performance under extreme operating temperatures and strict dimensional tolerances. Each vessel is produced according to your engineering drawings, furnace type, and thermal environment, ensuring stable performance in vacuum furnaces, powder metallurgy, crystal growth, and special alloy melting.
- Product Introduction
Custom Precision Molybdenum Crucibles for Industrial High-Temperature Furnaces
Manufactured from high-purity molybdenum under strict ISO 9001:2015 quality management standards, our custom crucibles are engineered for applications requiring reliable performance under extreme operating temperatures and strict dimensional tolerances. Each vessel is produced according to your engineering drawings, furnace type, and thermal environment, ensuring stable performance in vacuum furnaces, powder metallurgy, crystal growth, and special alloy melting.
Technical Specifications & Material Performance
Molybdenum offers one of the highest melting points among engineering metals, paired with excellent dimensional stability at elevated temperatures. Every shipment includes a traceable Material Test Report (MTR / 3.1 Certificate) verifying chemical composition and mechanical properties.
|
Property |
Specification |
|
Material Quality |
Pure Molybdenum (Mo >= 99.95%) |
|
Melting Point |
2623 deg C |
|
Recommended Operating Temp |
Up to 1800 deg C - 2000 deg C (Vacuum or Inert Gas) |
|
Density |
>= 9.8 g/cm3 (Typical: 10.2 g/cm3) |
|
Thermal Conductivity |
Approx. 138 W/(m*K) |
|
Thermal Expansion Coefficient |
5.1 x 10^-6 / K |
|
Quality & Compliance |
ISO 9001:2015 Certified Manufacturing; MTR Provided |
Important Operating Note: Molybdenum oxidizes rapidly above 600 deg C in air. Applications must be strictly restricted to vacuum, hydrogen, or inert gas (argon/nitrogen) environments to prevent catastrophic material degradation.
Core Performance Advantages
Low Impurity Profile (99.95% Purity): Minimizes high-temperature vaporization and prevents contamination of sensitive melts, ensuring high chemical stability during prolonged processing.
Low Thermal Expansion & Thermal Shock Resistance: Controlled grain structure achieved through sintering and precision machining reduces thermal stress, preventing cracking during rapid heating and cooling cycles.
High-Temperature Mechanical Strength: Retains structural rigidity under load at elevated temperatures, resisting creep and geometric deformation during long production runs.
Precision CNC Machining Tolerances:
• Diameter: +/-0.05 - 0.10 mm
• Height: +/-0.10 mm
• Wall Thickness: Uniform throughout the vessel to prevent localized overheating.
Optimized Surface Finish: Smooth interior and exterior finishes reduce surface defects, facilitating cleaner material unloading and minimizing residue accumulation between batches.
Manufacturing Process & Quality Control
Raw Material Screening: High-purity molybdenum powder undergoes strict chemical composition verification prior to production.
Powder Compaction: Utilizes uniform pressing (including Cold Isostatic Pressing for large dimensions) to secure consistent density across the crucible body.
High-Temperature Sintering: Controlled atmosphere sintering increases material density and structural integrity, verified via microstructural analysis.
CNC Machining: Critical dimensions, threads, and seating edges are finished on multi-axis CNC equipment based on customer drawings.
Final Inspection & Packaging: Dimensional checks, visual surface inspections, density verification, and export-grade protective wooden crating are performed prior to dispatch.
Available Configurations & Custom Options
We accommodate custom geometries matching specific furnace setups:
Geometries: Cylindrical, Tapered, Conical, Round Bottom, Flat Bottom, Threaded, Stepped, Ultra-Thin Wall, and Large-Capacity designs.
Accessories: Matching lids, covers, and specialized suspension hooks.
Traceability & Branding: Laser-marked part numbers, company logos, and custom batch labeling upon request.
Typical Industrial Applications
Powder Metallurgy & Hard Alloy Sintering: Used in high-temperature furnaces for sintering refractory metal powders and tooling materials.
Crystal Growth: Maintains structural alignment and dimensional stability under continuous high-temperature pulling or Bridgman processes.
Rare Earth & Specialty Alloy Melting: Provides contamination-free thermal processing for reactive or high-purity metals.
Laboratory & R&D Furnaces: Custom-built vessels for university labs and materials development facilities.
Requesting a Quotation
To secure an accurate engineering review and quotation, please supply:
Dimensional Drawing or CAD File: Showing outer diameter, inner diameter, overall height, wall thickness, and bottom thickness.
Operating Parameters: Working temperature and furnace atmosphere (Vacuum, Hydrogen, or Argon).
Order Volume: Prototype quantity, trial batch, or annual demand.
Frequently Asked Questions
Q: Can you manufacture according to our drawings?
A: Yes. We manufacture custom molybdenum crucibles based on customer drawings, CAD files, samples, or detailed dimensional requirements. Both standard and complex geometries are supported.
Q: What is the maximum operating temperature?
A: Pure molybdenum crucibles can generally operate continuously at 1800 deg C - 2000 deg C in vacuum or inert gas environments. In oxidizing atmospheres, oxidation begins at around 400 deg C - 600 deg C, so protective gas or vacuum conditions are recommended for high-temperature use.
Q: Can the crucibles be used in air?
A: They are not recommended for prolonged high-temperature use in air. Molybdenum oxidizes rapidly above approximately 600 deg C. For applications in air, protective coatings or alternative materials may be more appropriate.
Q: Do you support small trial orders?
A: Yes. Sample orders and prototype production are available before mass production, allowing customers to verify dimensions, fit, and performance. Standard sample lead times are typically 2 to 3 weeks.
Q: What quality inspections are performed?
A: Each production batch undergoes rigorous inspections for raw material composition, dimensions, density, surface finish, visual defects, and packaging. A full Material Test Report (MTR) can be provided upon request.
Hot Tags: custom molybdenum crucibles, China custom molybdenum crucibles manufacturers, suppliers, factory
