JPS56130410A - Iron sintered parts - Google Patents

Iron sintered parts

Info

Publication number
JPS56130410A
JPS56130410A JP3450880A JP3450880A JPS56130410A JP S56130410 A JPS56130410 A JP S56130410A JP 3450880 A JP3450880 A JP 3450880A JP 3450880 A JP3450880 A JP 3450880A JP S56130410 A JPS56130410 A JP S56130410A
Authority
JP
Japan
Prior art keywords
sintered body
surface layer
temporarily
sintered
infiltrating material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3450880A
Other languages
Japanese (ja)
Other versions
JPS6241283B2 (en
Inventor
Shuji Matsumoto
Susumu Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3450880A priority Critical patent/JPS56130410A/en
Publication of JPS56130410A publication Critical patent/JPS56130410A/en
Publication of JPS6241283B2 publication Critical patent/JPS6241283B2/ja
Granted legal-status Critical Current

Links

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  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Powder Metallurgy (AREA)

Abstract

PURPOSE: To inexpensively improve the abrasion resistance of iron sintered parts by sealing the voids in the inner side parts of sintered bodies with iron oxide, and filling an infiltrating material only in the holes of the surface layer parts.
CONSTITUTION: Various components are compounded and mixed at predetermined ratios, and the mixed powders are pressed to form a powder molded article. This powder molded article is sintered temporarily. Thence, this temporarily sintered body is subjected to steam treatment in a steam atmosphere to fill iron oxide in the respective holes in the surface layer part and inner side part of the temporarily sintered body. Thence, this sintered body is subjected to regular sintering and infiltration treatment. In this case, a solid infiltrating material is contacted with the predetermined places to be impregnated of the surface layer part of the temporarily sintered body, and the sintered body is raised of temp. up to the melting temp. of the infiltrating material in a heating furnace under reducing atmosphere. Then, the iron oxide is reduced to metallic iron by the reducing gas, and is decreased of volume; therefore, the molten infiltrating material infilters successively in the holes. In this way, abrasion resistance is imparted to the surface layer part alone.
COPYRIGHT: (C)1981,JPO&Japio
JP3450880A 1980-03-18 1980-03-18 Iron sintered parts Granted JPS56130410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3450880A JPS56130410A (en) 1980-03-18 1980-03-18 Iron sintered parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3450880A JPS56130410A (en) 1980-03-18 1980-03-18 Iron sintered parts

Publications (2)

Publication Number Publication Date
JPS56130410A true JPS56130410A (en) 1981-10-13
JPS6241283B2 JPS6241283B2 (en) 1987-09-02

Family

ID=12416195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3450880A Granted JPS56130410A (en) 1980-03-18 1980-03-18 Iron sintered parts

Country Status (1)

Country Link
JP (1) JPS56130410A (en)

Also Published As

Publication number Publication date
JPS6241283B2 (en) 1987-09-02

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