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Platinum Materials for Glass Melting Equipment

Consumer Electronics Glass Melting Equipment Semiconductor Sheets, Wires, and Tubes Platinum-based Products Automotive Applications
Product image of platinum materials for glass melting equipment

What is "Platinum Materials for Glass melting Equipment"?
We provide platinum equipment, which is made of platinum and alloys and is used in the process of melting glass raw materials at high temperatures, and is essential for the production of optical glass, special glass, and glass fiber. We extend equipment service life and reduce precious metal consumption through the use of our reinforced platinum material, ”nanoplat™”, combined with electrothermal analysis, mechanical strength simulation, and computational fluid dynamics (CFD)–based design optimization for platinum equipment used in high-temperature glass melting processes.

We offer glass melting equipment capable of withstanding harsh conditions that meet customer specifications.

We have added oxide (ZrO2) dispersion strengthened platinum to our lineup for use in platinum equipment used in the manufacture of high-quality glass. This reduces deformation of equipment and parts at high temperatures, contributing to extending the life of the equipment. Platinum-rhodium and platinum-gold alloy dispersion strengthened materials are also available to suit customer specifications.

Dispersion Strengthened Platinum Alloy

Features

  • Higher creep rupture strength and tensile strength at high temperature than conventional platinum materials
  • Much longer service life than conventional platinum materials
  • Smaller thickness with performance equivalent to that of conventional platinum materials
  • Lower cost with a smaller amount of platinum used

Applications

Bushings for glass fiber production, optical glass production equipment, glass production equipment for electronic components, thin glass production equipment, crystal glass production equipment, etc.

Cross-sectional diagram of crystalline structure

Condition after heat treatment at 1600℃ for 1 hour

Cast platinum
Photomicrograph of the cross section of cast platinum

High temperature and long-term heat treatment causes crystal grains to grow and strength to decrease.

Oxide-dispersed strengthened platinum
Cross-sectional image of oxide-dispersed strengthened platinum

Even with high temperature and long-term heat treatment, crystal grains do not grow, and high creep strength is maintained.

Product name Composition (wt%) Melting point (℃) Density (g/cm3)
Pt Au Rh
Pt 100 － － 1768 21.45
T-1 Pt 100 － － 1768 21.45
PtRh10 90 － 10 1850 20.10
PtRh20 80 － 20 1885 18.80
nanoplat ™Pt 100 － － 1768 21.45
nanoplat ™R 90 － 10 1850 20.10
nanoplat ™BP 100 － － 1768 21.45
nanoplat ™BPR 90 － 10 1850 20.10
PtAu5 95 5 － 1738 21.30

【nanoplat™ series】

1) nanoplat™ Pt
A material that suppresses crystal growth at high temperatures and has high creep strength and low creep deformation at high temperatures.It is mainly used in areas where platinum-rhodium alloys cannot be used, such as optical glass melting equipment.

2) nanoplat™ R
A material that suppresses crystal growth at high temperatures and has high creep strength and low creep deformation at high temperatures.
Used in various glass melting devices.

3) nanoplat™ BP
A material with higher high-temperature creep strength than nanoplat™ Pt and the smallest amount of creep deformation. It is used for bushing base plates, stirrers, and reinforcing materials where PtRh alloys cannot be used and high strength is required.

4) nanoplat ™ BPR
A material with higher high-temperature creep strength than nanoplat™ R and the smallest amount of creep deformation. It is used for bushing base plates, stirrers, and reinforcing materials where high strength is required.

5) nanoplat™ PtAu5 and nanoplat™ PtAu5 (CG)
Reinforced platinum materials based on PtAu5% with poor wettability with glass. nanoplat™ PtAu5 has high temperature creep strength and low creep deformation, suppressing crystal growth at high temperatures. nanoplat™ PtAu5 (CG) has no crystal growth or peeling and is mainly developed for bead pans.

6) nanoplat™ Pt (OS), nanoplat™ R (OS)
Reinforced platinum materials with high-temperature creep strength equivalent to PtRh between 10% and 20%. Among reinforced platinum materials, it has the largest amount of creep deformation and high thermal fatigue resistance.

7) nanoplat™ DT *New reinforced platinum material
A reinforced platinum material with improved creep deformation, thermal fatigue resistance, and plastic deformability compared to nanoplat™ Pt.

【High-Temperature Creep Characteristics of nanoplat™ Series】
[Correlation of high-temperature creep characteristics of nanoplat™ series] Creep test at 1400℃: Comparison of fracture stress and elongation after 100h
Comparison of Thermal Fatigue Characteristics of the 【nanoplat ™ series】
[Comparison of Thermal Fatigue Characteristics of nanoplat™ series] Thermal Fatigue Test: Comparison of Fracture Repetition Numbers

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