Structured Manufacturing Data (2026)

Tungsten-Rhenium Target Disk

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Tungsten-Rhenium Target Disk used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Tungsten-Rhenium Target Disk is characterized by the integration of Focal Track and Molybdenum Core/Base. In industrial production environments, manufacturers listed on CNFX commonly emphasize Tungsten-Rhenium alloy (typically 90-97% W, 3-10% Re) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A specialized rotating disk within medical X-ray tube anode assemblies that generates X-rays through electron bombardment.

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Product Specifications

Technical details and manufacturing context for Tungsten-Rhenium Target Disk

Definition
The Tungsten-Rhenium Target Disk is a critical rotating component in medical X-ray tube anode assemblies. It serves as the focal point where high-energy electrons strike, converting kinetic energy into X-ray radiation through bremsstrahlung and characteristic radiation processes. This disk is specifically engineered to withstand extreme thermal loads and mechanical stresses during X-ray generation in medical imaging applications.
Working Principle
When high-voltage electrons from the cathode strike the rotating Tungsten-Rhenium Target Disk, their kinetic energy is converted into X-ray photons through bremsstrahlung (braking radiation) and characteristic radiation. The rotation distributes heat across the disk surface, preventing localized overheating and melting. The tungsten-rhenium alloy provides high atomic number for efficient X-ray production and enhanced thermal/mechanical properties.
Common Materials
Tungsten-Rhenium alloy (typically 90-97% W, 3-10% Re)
Technical Parameters
  • Diameter and thickness specifications critical for thermal management and X-ray focal spot size (mm) Per Request
Components / BOM
  • Focal Track
    Primary surface where electrons strike to generate X-rays, featuring optimized geometry for heat distribution
    Material: Tungsten-Rhenium alloy
  • Molybdenum Core/Base Part
    Structural support and thermal interface between target disk and rotor assembly
    Material: Molybdenum or molybdenum alloy
  • Bonding Layer Part
    Metallurgical bond between tungsten-rhenium focal track and molybdenum base
    Material: Brazing alloy (typically copper-based or silver-based)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Tungsten-Rhenium Target Disk.

tungsten rhenium alloy X-ray target disk medical X-ray tube rotating anode component tungsten rhenium focal track for X-ray generation high-performance X-ray anode target materials durable rotating disk for medical imaging equipment

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: High vacuum environment (10^-4 to 10^-6 Torr) required for X-ray tube operation
other spec: Maximum rotational speed: 10,000 RPM (typical), Electron beam power density: Up to 1 kW/mm²
temperature: Up to 3000°C (operating surface temperature during electron bombardment)
Media Compatibility
✓ High vacuum environments ✓ Medical X-ray tube assemblies ✓ Electron bombardment applications
Unsuitable: Oxidizing atmospheres at high temperatures (causes rapid degradation of tungsten-rhenium alloy)
Sizing Data Required
  • Required X-ray output power (kW)
  • Anode cooling system capacity (heat dissipation rate)
  • Target focal spot size and geometry requirements

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal fatigue cracking
Cause: Repeated thermal cycling during high-energy particle bombardment leads to differential expansion stresses, particularly at grain boundaries in the tungsten-rhenium alloy, eventually causing microcracks that propagate under cyclic loading.
Surface spallation and erosion
Cause: High-velocity particle impacts and intense localized heating cause material vaporization and ejection from the surface, exacerbated by the high operating temperatures that reduce material strength and promote grain boundary weakening.
Maintenance Indicators
  • Visible surface discoloration or localized melting spots indicating uneven thermal loading or cooling system failure
  • Audible popping or cracking sounds during operation suggesting thermal stress relief or material fracture events
Engineering Tips
  • Implement controlled ramp-up/ramp-down procedures to minimize thermal shock, using temperature monitoring to ensure the target stays within the alloy's optimal thermal gradient tolerance during operation cycles.
  • Establish regular surface inspection and profilometry measurements to detect early erosion patterns, combined with periodic annealing treatments (when feasible) to relieve accumulated thermal stresses and restore material ductility.

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems ASTM B760 - Standard Specification for Tungsten Plate, Sheet, and Foil DIN 17007-1 - Materials for electrical engineering; materials for vacuum technology
Manufacturing Precision
  • Diameter: +/-0.05mm
  • Surface Roughness: Ra ≤ 0.8μm
Quality Inspection
  • Ultrasonic Testing for internal defects
  • X-ray Fluorescence (XRF) Analysis for alloy composition

Factories Producing Tungsten-Rhenium Target Disk

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What are the benefits of using Tungsten-Rhenium alloy in X-ray target disks?

Tungsten-Rhenium alloy (90-97% W, 3-10% Re) provides superior thermal stability, higher melting point, and improved resistance to thermal fatigue compared to pure tungsten, resulting in longer service life and more consistent X-ray output in medical imaging applications.

How does the three-layer construction (Bonding Layer, Focal Track, Molybdenum Core) improve performance?

The multi-layer design optimizes thermal management: the Molybdenum core/base provides structural support and heat dissipation, the Tungsten-Rhenium focal track withstands electron bombardment to generate X-rays, and the bonding layer ensures secure adhesion between layers under extreme thermal cycling conditions.

What maintenance considerations are important for Tungsten-Rhenium target disks in medical X-ray systems?

Regular inspection for focal track wear, monitoring of X-ray output consistency, and adherence to manufacturer-recommended cooling cycles are essential. Proper vacuum maintenance in the X-ray tube assembly is critical to prevent oxidation and ensure optimal performance of the Tungsten-Rhenium target disk.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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