Low thermal expansion material "Hino GD Invar" with excellent casting defect suppression and machinability.
Stable supply available from one unit to large lots! We have a track record of delivery in various industrial machines such as semiconductor manufacturing equipment, machine tools, precision measuring instruments, and vacuum pumps.
The "Hino GD Invar" is a low thermal expansion material that achieves unprecedented stability in low thermal expansion, castability, and machinability through the optimization of alloy components and heat treatment. It has a proven track record in various industrial machinery, including semiconductor manufacturing equipment, machine tools, precision measuring instruments, and vacuum pumps. 【Features】 ■ It has a low thermal expansion coefficient α = 1.0 to 3.5 ppm/K (average 20 to 50°C). ■ Castability/Machinability: By optimizing the alloy structure, it suppresses casting defects and excels in machinability compared to nickel-based materials. ⇒ It is ideal for parts with complex shapes or those prone to casting defects, as well as for parts that require machining. ■ The automatic molding line for sand molds enables the production of a wide variety of small quantities and stable supply. ⇒ With an automatic pattern change system, we have an automated and efficient sand mold automatic molding line, allowing us to flexibly respond to changes in production volume from a minimum of one piece to large lots. * We can develop new materials and customize materials according to customer requests! Please feel free to contact us.
basic information
【Lineup and Features】 ■EG3 ＜FC Series＞ ・Coefficient of linear expansion: α = 2.5–3.5 ppm/K (average 20–50°C) ・FC series material ・Ideal for components requiring vibration damping due to high attenuation ・Excellent machinability ■ED3 ＜FCD Series＞ ・Coefficient of linear expansion: α = 2.5–3.5 ppm/K (average 20–50°C) ・FCD series material with increased C, finely dispersed ・Improved castability and machinability for thin-walled and complex shapes ・Control of sphericity with trace elements to suppress casting defects in thick sections ■ED2 ＜FCD Series＞ ・Coefficient of linear expansion: α = 1.0–2.0 ppm/K (average 20–50°C) ・Based on ED3, reduced C and Si, achieving low expansion comparable to Invar through melt treatment and heat treatment *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
【Usage Examples】 ■ED2: Semiconductor manufacturing equipment (fixed holders, etc.), machine tools (spindles, etc.), FA equipment, etc. ■ED3: Semiconductor manufacturing equipment (fixed holders, etc.), precision measuring instruments (calibration equipment, etc.) ■EG3: Machine tools (tables, etc.), precision measuring instruments (calibration equipment, etc.) *For more details, please refer to the PDF document or feel free to contact us.
