JPS55148704A - Surface hardening method of iron base substrate - Google Patents

Surface hardening method of iron base substrate

Info

Publication number
JPS55148704A
JPS55148704A JP5654779A JP5654779A JPS55148704A JP S55148704 A JPS55148704 A JP S55148704A JP 5654779 A JP5654779 A JP 5654779A JP 5654779 A JP5654779 A JP 5654779A JP S55148704 A JPS55148704 A JP S55148704A
Authority
JP
Japan
Prior art keywords
green compact
sintered
alloy
temporarily
base substrate
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
JP5654779A
Other languages
Japanese (ja)
Other versions
JPS5715165B2 (en
Inventor
Shigeya Sakaguchi
Yasuro Mihashi
Hiroshi 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.)
Nippon Tungsten Co Ltd
Original Assignee
Nippon Tungsten 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 Nippon Tungsten Co Ltd filed Critical Nippon Tungsten Co Ltd
Priority to JP5654779A priority Critical patent/JPS55148704A/en
Publication of JPS55148704A publication Critical patent/JPS55148704A/en
Publication of JPS5715165B2 publication Critical patent/JPS5715165B2/ja
Granted legal-status Critical Current

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  • Powder Metallurgy (AREA)

Abstract

PURPOSE: To harden the substrate surface, by covering the surface of iron base substrate such as ordinary steel and tool steel, placing temporarily-sintered WC-Co green compact, and further placing mixed green compact of temporarily-sintered Ni-P alloy and TaC as infiltrating agent, then heating.
CONSTITUTION: The surface of iron base substrate such as ordinary steel and tool steel is covered with Ni-P alloy by plating or other means, and temporarily-sintered WC-Co green compact is placed on the film surface. Further on this green compact, a mixed green compact of temporarily-sintered Ni-P alloy and TaC (2W20%) is placed as infiltrating agent, and is heated for a specified time. In this method, as compared with the method of using only Ni-P alloy as infitrating agent, the hardness of the infiltrated surface is higher and deformation of products is smaller, and the yield is higher. This method is effective for forming a hardened layer on the surface of mechanical seal ring or the like.
COPYRIGHT: (C)1980,JPO&Japio
JP5654779A 1979-05-08 1979-05-08 Surface hardening method of iron base substrate Granted JPS55148704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5654779A JPS55148704A (en) 1979-05-08 1979-05-08 Surface hardening method of iron base substrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5654779A JPS55148704A (en) 1979-05-08 1979-05-08 Surface hardening method of iron base substrate

Publications (2)

Publication Number Publication Date
JPS55148704A true JPS55148704A (en) 1980-11-19
JPS5715165B2 JPS5715165B2 (en) 1982-03-29

Family

ID=13030108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5654779A Granted JPS55148704A (en) 1979-05-08 1979-05-08 Surface hardening method of iron base substrate

Country Status (1)

Country Link
JP (1) JPS55148704A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151954A (en) * 1982-03-04 1983-09-09 Kawasaki Heavy Ind Ltd Formation of liner layer
JPS5916908A (en) * 1982-07-20 1984-01-28 Seiko Epson Corp Manufacture of ornamental alloy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151954A (en) * 1982-03-04 1983-09-09 Kawasaki Heavy Ind Ltd Formation of liner layer
JPS5916908A (en) * 1982-07-20 1984-01-28 Seiko Epson Corp Manufacture of ornamental alloy

Also Published As

Publication number Publication date
JPS5715165B2 (en) 1982-03-29

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