Title:
A fixed point crucible and a fixed point black body furnace
Document Type and Number:
Japanese Patent JP6041347
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To allow inactive gas to easily flow into a measurement opening part side of a fixed-point crucible.SOLUTION: A fixed-point crucible 11 comprises: an outer cylinder 11a for housing fixed-point metal; and an inner cylinder 11b whose one end has a cross-sectional cone-shaped closure part 11e and whose other end has a measurement opening part 11f for measuring a temperature fixed-point that is a phase equilibrium state of the fixed-point metal, and that is housed in the outer cylinder 11a so as to be a blackbody hollow. A portion of an outer periphery on both ends of the outer cylinder 11a is formed with a gas flowing part 11g for flowing inactive gas from the closure part 11e side to the measurement opening part 11f side.
Inventors:
Yamada Yoshiro
Juntaro Ishii
Hideaki Oikawa
Kensuke Hiraka
Juntaro Ishii
Hideaki Oikawa
Kensuke Hiraka
Application Number:
JP2013029143A
Publication Date:
December 07, 2016
Filing Date:
February 18, 2013
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
Chino Co., Ltd.
Chino Co., Ltd.
International Classes:
G01K15/00; G01J5/10
Domestic Patent References:
| JP2003227764A |
Foreign References:
| WO2007043244A1 |
Attorney, Agent or Firm:
Norimitsu Nishimura
Noriyuki Suzuki
Noriyuki Suzuki