Title:
METHOD FOR DETERMINING PROPERTIES OF MOLTEN CAST IRON
Document Type and Number:
Japanese Patent JP2750832
Kind Code:
B2
Abstract:
PURPOSE: To obtain a method for determining the properties of cast iron quickly and exactly in a hob before molten cast iron is poured into an ingot case.
CONSTITUTION: Three sampling vessels for thermal analysis of molten cast iron which are equipped with thermocouples 4 respectively are connected to a cooling curve plotter 7 respectively. A chilling agent 5 is added to a first sampling vessel 1 out of them, the molten iron is poured into this first vessel 1 and the temperature of eutectic of cementite(TEC) thereof is measured by the thermal analysis thereof. Subsequently, the molten iron with no additive added is poured into a second sampling vessel 2 and a change in the eutectic solidification temperature of the molten iron itself is measured from the thermal analysis thereof. Moreover, a graphitizing acceleration agent 6 is added to a third sampling vessel 3, the molten iron is poured into this third vessel 3 and the temperature of eutectic of graphite(TEG) is measured by the thermal analysis thereof. The properties of the molten cast iron are determined on the basis of the relations of the temperature of eutectic of cementite(TEC) and the temperature of eutectic of graphite(TEG) to a range of the change in the eutectic solidification temperature of the molten iron.
Inventors:
SUGANO TOSHITAKE
IWAHASHI ATSUSHI
SAWARA EIICHI
HIRAOKA HIDETAKA
MORINAKA MASAYUKI
SUGIE KOJI
KUBOTA TAIJI
IWAHASHI ATSUSHI
SAWARA EIICHI
HIRAOKA HIDETAKA
MORINAKA MASAYUKI
SUGIE KOJI
KUBOTA TAIJI
Application Number:
JP14009995A
Publication Date:
May 13, 1998
Filing Date:
May 16, 1995
Export Citation:
Assignee:
KIMURA CHUZOSHO KK
NIPPON SABURANSU PUROOBU ENJINIARINGU KK
NIPPON SABURANSU PUROOBU ENJINIARINGU KK
International Classes:
G01N25/04; G01N33/20; G01N25/06; (IPC1-7): G01N25/06; G01N33/20
Domestic Patent References:
| JP7113771A |
Attorney, Agent or Firm:
Iida Kogo (1 person outside)