High Purity Molybdenum Sheets
Pure Molybdenum Content: >= 99.95% | Melting Point: 2623 deg C
We manufacture rolled molybdenum sheets designed for plastic mold builders, precision machining shops, and industrial distributors. These sheets are engineered to resist thermal fatigue and mechanical wear under continuous operating temperatures where conventional tool steels fail.
- Product Introduction
High Purity Molybdenum Sheets for Precision Plastic Mold Components
Pure Molybdenum Content: >= 99.95% | Melting Point: 2623 deg C
We manufacture rolled molybdenum sheets designed for plastic mold builders, precision machining shops, and industrial distributors. These sheets are engineered to resist thermal fatigue and mechanical wear under continuous operating temperatures where conventional tool steels fail.
Key Technical Advantages
Controlled Purity (>= 99.95% Mo): Low interstitial impurity levels prevent micro-cracking and unpredictable behavior during high-temperature cycling, resulting in stable machinability and predictable service life in tight-tolerance molds.
High Temperature Strength Retention: With a melting point of 2623 deg C, molybdenum retains structural integrity in extreme thermal environments, making it suitable for hot runner components, heat shields, and localized mold inserts prone to thermal shock.
Low Thermal Expansion: A thermal expansion coefficient of approx. 4.8 x 10^-6 /K (20 to 100 deg C) matches precision tooling requirements, minimizing dimensional drift, thermal distortion, and part flash during prolonged injection molding cycles.
Density and Wear Resistance: A material density of approx. 10.2 g/cm^3 provides high resistance to abrasive plastic wear and mechanical deformation under high clamping pressures.
Machining Adaptability: Processed through powder metallurgy and controlled rolling to eliminate internal laminations, allowing the material to be shaped via CNC milling, surface grinding, wire EDM, and conventional turning.
Technical Specifications
|
Parameter |
Standard Specification |
|
Material Base |
Pure Molybdenum |
|
Purity Level |
>= 99.95% Mo (Higher purities available on request) |
|
Density |
approx. 10.2 g/cm^3 |
|
Melting Point |
2623 deg C |
|
Thermal Expansion Coefficient |
approx. 4.8 x 10^-6 /K |
|
Surface Conditions |
Rolled, Ground, or Polished |
|
Dimensions |
Custom thickness, width, length, and cut-to-size blanks |
Manufacturing and Quality Control Workflow
Powder Selection: Raw molybdenum powder is verified for chemical composition and particle size distribution to ensure batch-to-batch uniformity.
Powder Metallurgy Processing: Material is compacted, sintered, hot-worked, and rolled to densify the structure and eliminate internal voids.
Rolling & Finishing: Precision cold/hot rolling achieves target thickness tolerances, followed by surface grinding or polishing depending on the final application.
Inspection: Every production batch undergoes dimensional checking, thickness verification, surface inspection, and density testing. Inspection reports and material test certificates are supplied upon request.
Primary Applications
Precision Mold Inserts: Placed in high-heat areas of plastic injection molds to accelerate cooling or prevent localized overheating.
EDM Electrodes: Utilized for deep-rib and fine-detail sinking due to low electrical resistance and slow erosion rates.
Hot Runner Components: Functions as nozzles, manifolds, or thermal isolation plates requiring stable heat distribution.
Industrial Fixtures: Serves as vacuum furnace trays, heating elements, and semiconductor assembly fixtures.
Supply Terms & Export Packaging
Custom Orders: Supported by engineering drawing reviews, trial batch options, and full-scale production scheduling.
Packaging Standards: Wrapped in moisture-resistant film, sealed with anti-corrosion agents, and packed inside reinforced wooden crates. Each crate is labeled with the material grade, exact dimensions, batch number, and gross weight.
FAQ
Q: What are the standard thickness ranges and tolerances?
A: We produce sheets ranging from thin foils up to heavy plates. Thickness tolerances are controlled to tight industrial standards, with custom grinding available for precise stack-ups.
Q: How should molybdenum sheets be machined in-house?
A: Use carbide or polycrystalline diamond (PCD) tooling with rigid setups. Water-miscible coolants are recommended for drilling and milling, while wire EDM is ideal for complex internal profiles.
Q: What details are needed for a formal price quotation?
A: Please provide your exact dimensions (thickness x width x length), quantity, required surface finish, and whether material test reports are needed.
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