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Title:
COMPOUND POWDER MANUFACTURING APPARATUS, MANUFACTURING METHOD FOR IRON-BORON POWDER MIXTURE USING SAME, BORON ALLOY POWDER MIXTURE AND METHOD FOR PREPARING SAME, POWDER CONJUGATES AND METHOD FOR MANUFACTURING SAME, AND STEEL PIPE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2012/169847
Kind Code:
A2
Abstract:
The present invention provides an apparatus for manufacturing a compound powder, a method for preparing an iron-boron powder mixture using the same, a boron alloy powder mixture and a method for preparing the same, a powder conjugate and a method for manufacturing the same, and a steel pipe and a method for producing the same. According to one aspect of the present invention, the method for preparing the boron alloy powder mixture comprises: a step of preparing a mixture powder in which a ferroboron powder and a target powder are mixed; and a de-boronizing step of de-boronizing at least a portion of the ferroboron powder while boronizing at least a portion of the target powder through a prescribed heat treatment so as to reduce the melting point of the ferroboron powder.

Inventors:
NAM KEE-SEOK (KR)
KWON JUNG-DAE (KR)
RHA JONG-JOO (KR)
AHN HEE-CHAN (KR)
LIM TAE-SU (KR)
Application Number:
PCT/KR2012/004575
Publication Date:
December 13, 2012
Filing Date:
June 08, 2012
Export Citation:
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Assignee:
KOREA MACH & MATERIALS INST (KR)
NAM KEE-SEOK (KR)
KWON JUNG-DAE (KR)
RHA JONG-JOO (KR)
AHN HEE-CHAN (KR)
LIM TAE-SU (KR)
International Classes:
C01G49/00; B01J19/28; B22F1/142; C01B35/04
Foreign References:
JP2003130548A2003-05-08
Other References:
OZDEMIR, O. ET AL.: 'Hard Iron Boride (Fe2B) on 99.97wt.% Pure Iron.' VACUUM vol. 80, 2006, pages 1391 - 1395
CASADESUS, P. ET AL.: 'Boriding with a Thermally Unstable Gas(Diborane).' METALLURGICAL TRANS. A vol. 10A, 1979, pages 1739 - 1743
IVANOV, S. ET AL.: 'Influence of the Comparison of the Boroning Mixture on the Dimension Change of Pressed and Boroned Samples from Iron Powder.' SCI. SINTERING vol. 40, 2008, pages 197 - 205
Attorney, Agent or Firm:
LEE, In-Haeng et al. (KR)
이인행 (KR)
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Claims: