Title:
METHOD AND DEVICE FOR RAPIDLY ANALYZING STEEL COMPONENT
Document Type and Number:
Japanese Patent JP3039231
Kind Code:
B2
Abstract:
PURPOSE: To more rapidly and precisely perform the analysis of steel component by inputting a massive sample to a sample holding part having an inert gas atmosphere as it is still in the red-hot state, emitting a pulse laser beam to the surface of the massive sample, and carrying the generated fine particles to an ICP analyzer by the inert gas.
CONSTITUTION: A massive sample 3 just after a molten metal is sucked and coagulated is put into a sample holding part 2 having the same curved face, the pulse laser beam from a laser oscillator 4 is emitted to the sample 3 surface through an analytical cell 1 and an exposing hole 21 while preventing oxidation with an inert gas. A large quantity of energy is collected to the sample 3 surface by the emission of the pulse laser, and the circumference of the emitting point becomes an extremely high temperature to partially atomize the sample 3. The fine particles are carried to an ICP analyzer 8 through a carrying gas piping 7 by the inert gas to analyze the molten metal component. At this time, only the fine particles generated from a depth of 25μm or more under the surface which has no possibility of oxidation.
Inventors:
Takanori Akiyoshi
Tadashi Mochizuki
Akiko Sakashita
Yoichi Tanmura
Hiroaki Miyahara
Tadashi Mochizuki
Akiko Sakashita
Yoichi Tanmura
Hiroaki Miyahara
Application Number:
JP27459093A
Publication Date:
May 08, 2000
Filing Date:
November 02, 1993
Export Citation:
Assignee:
Nippon Steel Tube Co., Ltd.
International Classes:
G01N21/73; G01N1/02; G01N33/20; (IPC1-7): G01N21/73; G01N1/02; G01N33/20
Domestic Patent References:
| JP63208738A | ||||
| JP5107186A | ||||
| JP578108A |