JPS5620141A - Sintered hard alloy and its manufacture - Google Patents

Sintered hard alloy and its manufacture

Info

Publication number
JPS5620141A
JPS5620141A JP9465579A JP9465579A JPS5620141A JP S5620141 A JPS5620141 A JP S5620141A JP 9465579 A JP9465579 A JP 9465579A JP 9465579 A JP9465579 A JP 9465579A JP S5620141 A JPS5620141 A JP S5620141A
Authority
JP
Japan
Prior art keywords
powder
crystal powder
alloy
sintered
hard alloy
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
JP9465579A
Other languages
Japanese (ja)
Other versions
JPS613389B2 (en
Inventor
Kunihiro Takahashi
Akio Hara
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP9465579A priority Critical patent/JPS5620141A/en
Publication of JPS5620141A publication Critical patent/JPS5620141A/en
Publication of JPS613389B2 publication Critical patent/JPS613389B2/ja
Granted legal-status Critical Current

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  • Powder Metallurgy (AREA)

Abstract

PURPOSE: To obtain a hard alloy having superior wear resistance, mechanical toughness and heat crack resistance by mixing WC crystal powder, BI-type crystal powder and Fe group metal powder and sintering the mixed powder in a specified nitrogen atmosphere to prevent denitrification.
CONSTITUTION: WC crystal powder, BI-type crystal powder having an Nb to (Ta+Nb) molar ratio of ≥0.5 and an N to (C+N) molar ratio of 0.1W0.5 and Fe group metal powder are mixed and sintered in a 10-2W10-4Torr vacuum or sintered while holding the partial pressure of nitrogen intermittently or continuously at 0.1W500Torr in temp. raising, holding and cooling processes. Thus, a uniform alloy is obtd. while preventing denitrification or enriching nitrogen. This alloy is suitable for use as a base material for a covered carbide tool, etc.
COPYRIGHT: (C)1981,JPO&Japio
JP9465579A 1979-07-24 1979-07-24 Sintered hard alloy and its manufacture Granted JPS5620141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9465579A JPS5620141A (en) 1979-07-24 1979-07-24 Sintered hard alloy and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9465579A JPS5620141A (en) 1979-07-24 1979-07-24 Sintered hard alloy and its manufacture

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP59087192A Division JPS6041143B2 (en) 1984-04-27 1984-04-27 Sintered hard alloy and its manufacturing method

Publications (2)

Publication Number Publication Date
JPS5620141A true JPS5620141A (en) 1981-02-25
JPS613389B2 JPS613389B2 (en) 1986-01-31

Family

ID=14116260

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9465579A Granted JPS5620141A (en) 1979-07-24 1979-07-24 Sintered hard alloy and its manufacture

Country Status (1)

Country Link
JP (1) JPS5620141A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5059491A (en) * 1988-11-11 1991-10-22 Mitsubishi Metal Corporation Cermet blade member for cutting-tools and process for producing same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5059491A (en) * 1988-11-11 1991-10-22 Mitsubishi Metal Corporation Cermet blade member for cutting-tools and process for producing same
US5110543A (en) * 1988-11-11 1992-05-05 Mitsubishi Metal Corporation Cement blade member for cutting-tools and process for producing same

Also Published As

Publication number Publication date
JPS613389B2 (en) 1986-01-31

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