Heater for high-temperature furnace
Various machined components for vacuum furnaces and reduction atmosphere furnaces
Tungsten and molybdenum materials are indispensable for vacuum furnaces and reduction atmosphere furnaces. Using our own tungsten and molybdenum materials that have excellent characteristics in high-temperature environments, we offer products designed and machined into shapes according to customer specifications. We can not only design products according to drawings, but also offer design proposals to improve problems and extend service life. Even if you do not have the drawings, we can design the product for you. We have a lot of experience in the manufacture of components for high-efficiency operation of high-temperature furnaces, including heaters for high-temperature vacuum furnaces and reduction atmosphere furnaces, reflectors, ceramic parts, rare earth magnets, heaters for sintering nuclear fuel, trays, boats, etc.
| Applications | Components for high-temperature furnaces |
|---|
List of tungsten and molybdenum products for heaters
スクロールで表全体をご覧いただけます。
| W | Materials | Purity（%） | Additive | Finish | Notes |
|---|---|---|---|---|---|
| AW | 99.95 min. | K | Refer to Appendix 1 | It has excellent resistance to high temperature deformation, blackening, and seismic shock, and has a long service life due to the low content of impurity gases. | |
| AX | 99.95 min. | K | Compared to conventional materials, the recrystallization temperature is 50 to 200°C higher, doped pores are smaller, and the length of the crystal structure after recrystallization is 3 to 4 times longer, significantly improving nonsagging properties. | ||
| EX | 99.95 min. | K | It contains few impurity gases, has excellent resistance to high-temperature deformation and corrosion to deposited metals such as Al, Ni, and Cr, and has a long service life. | ||
| CY(PFW) | 99.95 min. | None | The most conventional pure tungsten material. Among tungsten, it has good workability, excellent corrosion resistance, and low impurity gas content. |
||
| 4N-W | 99.99 min. | None | High-purity tungsten material with reduced impurities. | ||
| 5N-W | 99.999 min. | None | It is one of the world's highest purity tungsten materials with minimal impurities. |
スクロールで表全体をご覧いただけます。
| Mo | Materials | Purity（%） | Additive | Finish | Notes |
|---|---|---|---|---|---|
| MOP | 99.95 min. | None | Refer to Appendix 2 | It is the most conventional pure molybdenum material and has a high melting point and excellent high-temperature strength. It also has high thermal conductivity, low thermal expansion, and excellent workability. |
|
| TEM | 99.00 min. | Rare-Earth Oxides | This high-quality molybdenum material overcomes the brittleness and deformation at high temperature of conventional molybdenum. It has excellent high-temperature deformation resistance, a high recrystallization temperature, and a wedge-shaped recrystallized structure. Even after use at high temperature, it has excellent impact resistance and can be deformed at room temperature. It also has greater bendability than pure molybdenum. |
Finish of tungsten heaters (appendix 1)
スクロールで表全体をご覧いただけます。
| Code | Finish |
|---|---|
| D | DRAWN |
| DS | DRAWN AND STRAIGHTENED |
| CC | CHEMICAL CLEANED |
| EE | ELECTROLYTIC ETCHED |
| EES | ELECTROLYTIC ETCHED AND STRAIGHTENED |
| EP | ELECTROLYTIC POLISHED |
| EPS | ELECTROLYTIC POLISHED AND STRAIGHTENED |
| EPSC | ELECTROLYTIC POLISHED AND STRAIGHTENED AND CUT |
| G | GROUND |
| S | SWAGED |
Finish of molybdenum heaters (appendix 2)
スクロールで表全体をご覧いただけます。
| Code | Finish |
|---|---|
| D | DRAWN |
| DSC | DRAWN AND STRAIGHTENED AND CUT |
| EE | ELECTROLYTIC ETCHED |
| EES | ELECTROLYTIC ETCHED AND STRAIGHTENED |
| EP | ELECTROLYTIC POLISHED |
| EPA | ELECTROLYTIC POLISHED AND ANNEALED |
| EPSC | ELECTROLYTIC POLISHED AND STRAIGHTENED AND CUT |
| G | GROUND |
| S | SWAGED |
| B | BELT GROUND |
Bending ability of TEM rods
Excellent high-temperature deformation resistance of TEM rods, and examples of heater use
Comparison of bending of TEM and pure Mo recrystallized rods
- TEM recrystallized rods D 1.6mm
- Pure Mo recrystallized rods D 1.6mm
Excellent high-temperature deformation resistance of TEM rods,
and examples of heater use
- TEM heater used for 3 years
- Pure Mo heater used for 1.5 years
- Tungsten technical information
- Molybdenum technical information