DE874725C - Schneidwerkzeug aus einem gesinterten Pulvergemisch - Google Patents

Schneidwerkzeug aus einem gesinterten Pulvergemisch

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Publication number
DE874725C
DE874725C DEK2753D DEK0002753D DE874725C DE 874725 C DE874725 C DE 874725C DE K2753 D DEK2753 D DE K2753D DE K0002753 D DEK0002753 D DE K0002753D DE 874725 C DE874725 C DE 874725C
Authority
DE
Germany
Prior art keywords
powder mixture
sintered powder
cutting tool
tool made
tool
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.)
Expired
Application number
DEK2753D
Other languages
English (en)
Inventor
Walther Dr Dawihl
Karl Schroeter
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.)
Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie
Original Assignee
Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie
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 Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie filed Critical Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie
Priority to DEK2753D priority Critical patent/DE874725C/de
Application granted granted Critical
Publication of DE874725C publication Critical patent/DE874725C/de
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • C04B35/575—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide obtained by pressure sintering
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/5805—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/5805—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides
    • C04B35/58064—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides
    • C04B35/58071—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides based on titanium borides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • C04B35/6316—Binders based on silicon compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Description

  • Schneidwerkz-eug aus einem gesinterten Pulvergemisch Zur Herstellung von Schleifscheiben benutzt man häufig ein gesintertes Pulvergemisch eines sehr harten Karbides, insbesondere Siliciu,mkarbid, mit einer silicatischen Bindemasse, etwa Aluminiumsilicate oder Alkalialuminiumsilicate. Die Korngräße des verwendeten harten Karbides beträgt hierbei in der Regel mehr als o, i mm. Kleinere Korngrößen wurden nur gelegentlich zur Herstellung von Polier- oder Läppzwecken dienenden Scheiben verwendet, mit denen jedoch eine Schleifwirkung nicht erzielbar ist.
  • Die Erfindung bezieht sich auf Schneidwerkzeuge, die gleichfalls ,aus ,einem gesinterten Pulvergemisch :eines sehr harten Karbides oder Borides und einer silicatischen Bindemasse bestehen, und geht von der Erkenntnis ,aus, daß bei derartigen Werkzeugkörpern -ein ganz besonders feines I"'-arbidkorn entgegen aller von großem Vorteil ist. Es ;gelingt nämlich, wenn die Korngröße dies verwendeten harten Karbides weniger als o,oo5 mm beträgt, mit dem hergestellten Werkzeug Körper aus Isolierstoff Galler Art, auch Kohle; abzudrehen;, zu bohren, zu hobeln ,oder zu fräsen, ,also Arbeiten zu verrichten, die mit den bekannten, aus Siliciumka.rbid und silicaiischer Bindemasse bestehenden Schleifkörpern nicht möglich waren. Als besonders vorteilhaft hat es. sich erwiesen, wenn das zur Herstellung des Werkzeuges mitverwendete harte Metallkarbid, etwa Siliciumkarbid,oder Titankarbid, eine Korngröße von o,ooi bis 0,002 mm besitzt. An Stelle der I%'-arbide können bei dem neuen Werkzeug auch harte Bioride, wie z. B. Titanborid, verwendet werden. Statt eines einzigen Karbides Moder Borides können auch ,gleichzeitig zwei,oder mehrere Karbide ,oder Boride oder Karbide und Bo:ride zur Hierstellung des Werkzeuges Anwendung finden. Eine geeignete Zusammenseetzung :eines Schneidwerkzeuges nach der Erfindung ist die folgende: Silidwmkorbi-d (Korngröße unter o,oo3) = 67 Gewichtsteile, silicatische Bindemasse=33 Gewichtsteile.
  • Die silicatische Bindemasse: kann beispielsweise folgende Zusammensetzung hab;m: 50% Koalin, 1 o % Aluminiumoxyd, 150/0 Feldspat, 250/0 Quarz.
  • Die Mischung aus Siliciumkarbid der angegebenen Korngröße und silicatis:cher Bindemasse wird zwecks Herstellung der Werkzeuge in üblicher Weise -verformet und gesintert. Gegebenenfalls kann gleichzeitig mit dem Sintern ein Heißpressen stattfinden.

Claims (1)

  1. PATENTANSPRUCH: S:chneidwerkzeug, insbesondere mtm Abdrehen, Bohren, Hobeln oder Fräsen von Isolierstoffen aller Art, auch Kohle, dadurch gekennzeichnet, .daß das Werkzeug aus einem gesinterten Pulvergemiscli eines sehr harten Karbides oder Borides von einer Korngröße von weniger als o,oo5 mm, vorzugsweise von o,ooi bis o,oo2mm, und einer silicatischen Bindemasse besteht. Angezogene Druckschriften: Schweizerische Patentschrift Nr. 130 203; deutsche Patentschriften Nr. 504 484, 284 808, 17 725; britische Patentschrift Nr. 279 376; französische Zusatzpatentschrift Nr. 38 878, Zusatz zum französischen Patent Nr. 654210; »Die Werkzeugmaschine«, i934, S. 315 ff; Hütte, »Taschenbuch er Stoffkunde«, Berlin 1:937, S.932, Tafel Il; »Archiv für Eisenhütteilmnesen«, 11, 1938, S.550.
DEK2753D 1937-06-22 1937-06-22 Schneidwerkzeug aus einem gesinterten Pulvergemisch Expired DE874725C (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK2753D DE874725C (de) 1937-06-22 1937-06-22 Schneidwerkzeug aus einem gesinterten Pulvergemisch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK2753D DE874725C (de) 1937-06-22 1937-06-22 Schneidwerkzeug aus einem gesinterten Pulvergemisch

Publications (1)

Publication Number Publication Date
DE874725C true DE874725C (de) 1953-04-27

Family

ID=7209568

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK2753D Expired DE874725C (de) 1937-06-22 1937-06-22 Schneidwerkzeug aus einem gesinterten Pulvergemisch

Country Status (1)

Country Link
DE (1) DE874725C (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE17725C (de) * A. ROTHBARTH und W. ROTHBARTH in Berlin Angelapparat zum Fischfang
DE284808C (de) *
GB279376A (en) * 1926-10-25 1928-01-12 Krupp Ag Sintered hard metal alloys and articles made thereof
CH130203A (de) * 1926-10-25 1928-11-30 Krupp Ag Gesinterte Hartmetallegierung.
FR654210A (fr) * 1927-04-06 1929-04-03 Thomson Houston Comp Francaise Perfectionnements apportés aux compositions métalliques dures et à leurs procédés de fabrication
DE504484C (de) * 1926-02-13 1930-08-04 Oskar Diener Dipl Ing Verfahren zum Herstellen von Hartkoerpern fuer Werkzeuge, insbesondere Ziehsteine, aus Karbiden, Siliziden, Boriden, Aluminiumoxyd oder Gemischen von diesen
FR38878E (fr) * 1930-07-03 1931-08-08 Thomson Houston Comp Francaise Perfectionnements apportés aux compositions métalliques dures et à leurs procédés de fabrication

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE17725C (de) * A. ROTHBARTH und W. ROTHBARTH in Berlin Angelapparat zum Fischfang
DE284808C (de) *
DE504484C (de) * 1926-02-13 1930-08-04 Oskar Diener Dipl Ing Verfahren zum Herstellen von Hartkoerpern fuer Werkzeuge, insbesondere Ziehsteine, aus Karbiden, Siliziden, Boriden, Aluminiumoxyd oder Gemischen von diesen
GB279376A (en) * 1926-10-25 1928-01-12 Krupp Ag Sintered hard metal alloys and articles made thereof
CH130203A (de) * 1926-10-25 1928-11-30 Krupp Ag Gesinterte Hartmetallegierung.
FR654210A (fr) * 1927-04-06 1929-04-03 Thomson Houston Comp Francaise Perfectionnements apportés aux compositions métalliques dures et à leurs procédés de fabrication
FR38878E (fr) * 1930-07-03 1931-08-08 Thomson Houston Comp Francaise Perfectionnements apportés aux compositions métalliques dures et à leurs procédés de fabrication

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