BR8901168A - CEMENTED CARBON BODY AND PROCESS TO PRODUCE THE SAME - Google Patents

CEMENTED CARBON BODY AND PROCESS TO PRODUCE THE SAME

Info

Publication number
BR8901168A
BR8901168A BR898901168A BR8901168A BR8901168A BR 8901168 A BR8901168 A BR 8901168A BR 898901168 A BR898901168 A BR 898901168A BR 8901168 A BR8901168 A BR 8901168A BR 8901168 A BR8901168 A BR 8901168A
Authority
BR
Brazil
Prior art keywords
boron
produce
same
carbon body
carbide
Prior art date
Application number
BR898901168A
Other languages
Portuguese (pt)
Inventor
Donald C Pennington Jr
Original Assignee
Vermont American Corp
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
Priority claimed from US07/317,612 external-priority patent/US4961780A/en
Application filed by Vermont American Corp filed Critical Vermont American Corp
Publication of BR8901168A publication Critical patent/BR8901168A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/05—Mixtures of metal powder with non-metallic powder
    • C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
    • C22C32/0073—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only borides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Powder Metallurgy (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Glass Compositions (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

A hard, relatively non-brittle, cemented carbide body is made by sintering pressed grade carbide powders in the presence of a boron-containing material such as boron nitride. During sintering, appreciable quantities of boron migrate or diffuse into the body to become incorporated throughout the microstructure of the carbide resulting in the formation of a third quarternary phase comprised of tungsten, cobalt, boron and carbon.
BR898901168A 1988-03-11 1989-03-13 CEMENTED CARBON BODY AND PROCESS TO PRODUCE THE SAME BR8901168A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16700088A 1988-03-11 1988-03-11
US21119788A 1988-06-29 1988-06-29
US07/317,612 US4961780A (en) 1988-06-29 1989-03-06 Boron-treated hard metal

Publications (1)

Publication Number Publication Date
BR8901168A true BR8901168A (en) 1989-10-31

Family

ID=27389335

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898901168A BR8901168A (en) 1988-03-11 1989-03-13 CEMENTED CARBON BODY AND PROCESS TO PRODUCE THE SAME

Country Status (11)

Country Link
EP (1) EP0332463B1 (en)
JP (1) JP2766661B2 (en)
KR (1) KR890014773A (en)
CN (1) CN1039837C (en)
AT (1) ATE109123T1 (en)
BR (1) BR8901168A (en)
CA (1) CA1334434C (en)
DE (1) DE68916987T2 (en)
DK (1) DK118489A (en)
ES (1) ES2060754T3 (en)
RU (1) RU2046152C1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05271842A (en) * 1990-09-12 1993-10-19 Hitachi Metals Ltd Cermet alloy and its production
GB2263704B (en) * 1992-01-29 1995-08-30 Toyo Kohan Co Ltd Heat-resistant sintered hard alloy
US5623723A (en) * 1995-08-11 1997-04-22 Greenfield; Mark S. Hard composite and method of making the same
KR100514342B1 (en) * 1998-03-25 2005-12-05 두산인프라코어 주식회사 Abrasion resistance cemented carbide alloy
GB2429980A (en) * 2005-09-08 2007-03-14 John James Saveker Material comprising a carbide, boride or oxide and tungsten carbide
JP2009200179A (en) * 2008-02-20 2009-09-03 Ulvac Japan Ltd Manufacturing method of sintered compact
CN101701311B (en) * 2009-09-29 2011-03-09 武汉科技大学 WCoB ternary boride cermet material and preparation method thereof
CN103060651B (en) * 2012-12-28 2015-03-04 鞍山煜宸科技有限公司 Nano ceramic alloy material for strengthening surface of ductile iron roller with laser and preparation method thereof
CN103769576A (en) * 2014-01-08 2014-05-07 北矿新材科技有限公司 Tungsten carbide-based wear-resistant coating material for preparing low-porosity coating and preparation method thereof
CN104073665B (en) * 2014-06-26 2016-05-11 东北大学 A kind of preparation method of WC-Co-cBN composite
CN104354345B (en) * 2014-11-28 2016-08-03 厦门钨业股份有限公司 A kind of boracic gradient hard alloy with shell structurre and preparation method thereof
DE102015203389A1 (en) * 2015-02-25 2016-08-25 Aktiebolaget Skf Drill motor bearing assembly
CN106319316A (en) * 2016-10-09 2017-01-11 张倩楠 Hard alloy and manufacturing method thereof
WO2020088748A1 (en) * 2018-10-30 2020-05-07 Hyperion Materials & Technologies (Sweden) Ab Method of boronizing sintered bodies and tools for cold forming operations and hollow wear parts with boronized sintered bodies

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3264742D1 (en) * 1981-04-06 1985-08-22 Mitsubishi Metal Corp Tungsten carbide-base hard alloy for hot-working apparatus members
EP0182759B2 (en) * 1984-11-13 1993-12-15 Santrade Ltd. Cemented carbide body used preferably for rock drilling and mineral cutting

Also Published As

Publication number Publication date
EP0332463B1 (en) 1994-07-27
ATE109123T1 (en) 1994-08-15
JP2766661B2 (en) 1998-06-18
KR890014773A (en) 1989-10-25
JPH0285333A (en) 1990-03-26
CA1334434C (en) 1995-02-14
EP0332463A1 (en) 1989-09-13
DE68916987D1 (en) 1994-09-01
ES2060754T3 (en) 1994-12-01
CN1039837C (en) 1998-09-16
DK118489A (en) 1989-09-12
CN1037930A (en) 1989-12-13
DK118489D0 (en) 1989-03-10
DE68916987T2 (en) 1994-12-01
RU2046152C1 (en) 1995-10-20

Similar Documents

Publication Publication Date Title
BR8901168A (en) CEMENTED CARBON BODY AND PROCESS TO PRODUCE THE SAME
US4525178B1 (en)
DE3479637D1 (en) Diamond abrasive products
IE45842L (en) Sintered silicon carbide
AU564428B2 (en) Silicon carbide/graphite/carbon ceramic body
IE900113L (en) Self-supporting bodies
JPS5377811A (en) Sintered material for tools of high hardness and its preparation
ES2054674T3 (en) PROCESS FOR THE PRODUCTION OF POROUS CONFORMED ARTICLES.
ES8605453A1 (en) Process for producing carbide-boride articles and their application.
FI883329A0 (en) Method of making a self-supporting body and self-supporting material
GB2014193B (en) Sintered boron carbide containing free carbon
FR2423313A1 (en) Cutting element for rocks or metals - is formed from wedge-shaped section of body comprising core of cutting material in envelope of hard material
DE59201941D1 (en) Tool for machining materials.
GB9022316D0 (en) Composite containing fibrous materials
SE8703702D0 (en) NOVEL COMPOSITE CERAMICS WITH IMPROVED TOUGHNESS
MX174562B (en) A METHOD FOR PRODUCING MIXED CERAMIC BODIES
ES8700652A1 (en) Method for producing glyoxylylspermidine and the use thereof for the production of 15-deoxy spergualin-related compounds
JPS569353A (en) Carbonized tungsten hard substance
JPS57160972A (en) Manufacture of silicon carbide formed body
JPS52135805A (en) Sintered body and its preparation for cutting tool
EP0165584A3 (en) Sliding contact material
Knox et al. Boron-Treated Hard Metal
EP0179490A3 (en) Particles containing an iron carbide, production process and use thereof
SE8403688L (en) HARD METAL COMPOSITION
EP0234099A3 (en) Powder metallurgy high speed tool steel article and method of manufacture

Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 08/02/2010