[go: up one dir, main page]

JPS5456906A - Method of tightening surface layer of sintered body - Google Patents

Method of tightening surface layer of sintered body

Info

Publication number
JPS5456906A
JPS5456906A JP12244677A JP12244677A JPS5456906A JP S5456906 A JPS5456906 A JP S5456906A JP 12244677 A JP12244677 A JP 12244677A JP 12244677 A JP12244677 A JP 12244677A JP S5456906 A JPS5456906 A JP S5456906A
Authority
JP
Japan
Prior art keywords
sintered body
surface layer
rays
laser light
mechanical properties
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.)
Pending
Application number
JP12244677A
Other languages
Japanese (ja)
Inventor
Mitsuo Chikazaki
Kiyoshi Otaka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12244677A priority Critical patent/JPS5456906A/en
Publication of JPS5456906A publication Critical patent/JPS5456906A/en
Pending legal-status Critical Current

Links

Landscapes

  • Laser Beam Processing (AREA)
  • Powder Metallurgy (AREA)

Abstract

PURPOSE:To provide the subject method of irradiating laser light rays, electron rays and the like on the surface layer of a sintered body thereby to tighten the surface layer of the sintered body and to improve the mechanical properties thereof. CONSTITUTION:Onto a sintered body or a sintered body coated on its surface with a powder of a metal, an alloy or a compound there are irradiated beams of a high energy density such as laser light rays, electorn rays or the like. The surface layer of a metal powder or a sintered body is molten by the irradiation of the above described beams, and the surface layer of the sintered body becomes void free and forms a tight layer of a porosity of 0%. Therefore, the mechanical properties of the sintered body such as tensile force, hardness, elongation and the like are remarkably increased.
JP12244677A 1977-10-14 1977-10-14 Method of tightening surface layer of sintered body Pending JPS5456906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12244677A JPS5456906A (en) 1977-10-14 1977-10-14 Method of tightening surface layer of sintered body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12244677A JPS5456906A (en) 1977-10-14 1977-10-14 Method of tightening surface layer of sintered body

Publications (1)

Publication Number Publication Date
JPS5456906A true JPS5456906A (en) 1979-05-08

Family

ID=14836038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12244677A Pending JPS5456906A (en) 1977-10-14 1977-10-14 Method of tightening surface layer of sintered body

Country Status (1)

Country Link
JP (1) JPS5456906A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6277192A (en) * 1985-09-30 1987-04-09 Nippon Kokan Kk <Nkk> Coating method for outerside and inside of pipe
JPS62191835U (en) * 1986-05-26 1987-12-05
WO1998054379A1 (en) * 1997-05-28 1998-12-03 Paul Caron Sintered mechanical part with abrasionproof surface and method for producing same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6277192A (en) * 1985-09-30 1987-04-09 Nippon Kokan Kk <Nkk> Coating method for outerside and inside of pipe
JPS62191835U (en) * 1986-05-26 1987-12-05
WO1998054379A1 (en) * 1997-05-28 1998-12-03 Paul Caron Sintered mechanical part with abrasionproof surface and method for producing same

Similar Documents

Publication Publication Date Title
MY112082A (en) Process for thin film formation
JPS53128971A (en) Manufacture of electron radiation cathode
JPS5456906A (en) Method of tightening surface layer of sintered body
JPS51124371A (en) Scanning type electron microscope and similar equipment provided with means for controlling opening angle of electron beam for irradiating s amples
JPS57198259A (en) Surface treatment of titanium or titanium alloy
ES8402066A1 (en) Coating for photothermal conversion.
JPS52156188A (en) Fluorescent substance
SE7705088L (en) X-RAY ANSURE WITH ALLOY SURFACE AND PROCEDURE FOR MANUFACTURE THEREOF
ES8301770A1 (en) Process for producing a carrying sheet coated with a lacquer cured by electron beam radiation.
JPS5544555A (en) Hardening method of carbon steel parts
JPS5757867A (en) Surface hardening method of titanium and titanium alloy
JPS53123667A (en) Generator for semiconuctor oxidized film
JPS53135564A (en) Thermal cathode and its manufacture
EP0400651A3 (en) Method of modification on surface of solid sample
JPS5397911A (en) Manufacture of abrasion resistant sintered alloy
JPS5452629A (en) Bulb member
JPS56121257A (en) Manufacture of cathode-ray tube
JPS5332677A (en) Electron beam exposure apparatus
JPS5390781A (en) Semiconductor radiation detector
JPS5367694A (en) Surface modifying method for inorganic porous material
JPS5340195A (en) Irradiating method of radioactive ray
JPS5411593A (en) Method of boring metallic plate laser beam
JPS53110250A (en) Method of conditioning organic sludge
KR880012778A (en) Iron loss reduction method of grain oriented silicon steel sheet
JPS5390766A (en) Exposure method