High melting point metals [Heat treatment case] Molybdenum rhenium brazing material development

Active in medical X-rays, non-destructive testing equipment, mass spectrometers, and more.

■Development of Molybdenum-Ruthenium Filler Metal This filler metal is used for joining (brazing) high melting point metals due to its high melting point, but it is not commercially available, so it was necessary to procure the materials independently. Using the developed filler metal, we attempted brazing between tungsten pieces. *The left side of the photo shows porous tungsten.* Photo 1: Observed by a CCD camera. This is a failed example where a large gap occurred at the joint. In reality, it was quite difficult to achieve a good result. Photo 2: Successful example! (The joint is in the center of the photo.) Photo 3: Reflection electron image by SEM. It can be seen that the joint is made without gaps due to the filler metal. Photo 4: Element mapping. The joint area has become clear. Perhaps due to its porous nature, the filler metal seems to have diffused on the left side. ◆Our company possesses a super high-temperature heat treatment furnace capable of up to [2700°C]. We have numerous furnaces that can accommodate various atmospheres and offer solutions utilizing heat treatment furnaces tailored to your needs. - Coating - Brazing - Functional material development - Sintering - Residual stress removal - Grain size control - Oxide removal - Contamination removal - Degassing - De-greasing ...and more.

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