EP0841990B1 - Piece d'usure et son procede de fabrication - Google Patents

Piece d'usure et son procede de fabrication Download PDF

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Publication number
EP0841990B1
EP0841990B1 EP96924838A EP96924838A EP0841990B1 EP 0841990 B1 EP0841990 B1 EP 0841990B1 EP 96924838 A EP96924838 A EP 96924838A EP 96924838 A EP96924838 A EP 96924838A EP 0841990 B1 EP0841990 B1 EP 0841990B1
Authority
EP
European Patent Office
Prior art keywords
inlay
metal
casting
wear
ferrous material
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 - Lifetime
Application number
EP96924838A
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German (de)
English (en)
Other versions
EP0841990A1 (fr
Inventor
Bruno Mayer
Werner Stipp
Michael Elsner
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.)
SWB Stahlformgussgesellschaft mbH
Original Assignee
SWB Stahlformgussgesellschaft mbH
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7768589&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0841990(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SWB Stahlformgussgesellschaft mbH filed Critical SWB Stahlformgussgesellschaft mbH
Publication of EP0841990A1 publication Critical patent/EP0841990A1/fr
Application granted granted Critical
Publication of EP0841990B1 publication Critical patent/EP0841990B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2210/00—Codes relating to different types of disintegrating devices
    • B02C2210/02—Features for generally used wear parts on beaters, knives, rollers, anvils, linings and the like

Definitions

  • the invention relates to a wearing part for the Processing of minerals, construction waste and Metal waste, with one made of ferrous material manufactured impact body, which in the area of his Wear zone at least one made of metal oxide and / or Metal carbide ceramic manufactured and by composite casting with the impact body has an intimately connected inlay, and a process for their manufacture.
  • Wear parts of this type are used, for example, in shredder plants, Hammer and impact mills for the preparation of Minerals, construction waste, scrap and the like Materials used.
  • Wear parts of the type mentioned are from the German published application DE 36 18 195 A1 known.
  • the known wear parts is a monolithic hard metal block molded inlay intended.
  • This carbide inlay is in one Compound casting with the actual impact body of the Wear part connected.
  • EP-A-0 476 496 is a wear part and a Process for producing such a wearing part known in which inserts made of a first material a mold can be used with a cast material are cast from a second material. Doing so a plurality of such inserts are inserted into the mold, ripping the inserts to a predetermined one Keep distance. That way between the ribs The space formed is then shaped into the cast casting material filled. No one should metallogical connection between the insert and the casting material take place.
  • the inserts at the known wear part are as in the prior art according to DE 36 18 195 A1 as monolithic units educated. The rib-shaped projections represent sure that the casting material suits the particular Insert body so that it is firmer than the the prior art according to DE 36 18 195 A1 in the Casting material is held.
  • the known wear parts are used as hammers Impact mechanisms, hammer mills and stone mills used. They show due to the arrangement of the hard metal inlay in the area of the strongest abrasive stress compared to wear parts that do not have corresponding inlay, significantly improved Durability on. When testing the known wear parts, however, are found to be common insufficient hold between the impact body and the inlay is guaranteed. This brings the danger with the fact that the inlay with very heavy use breaks out of the impact body in one piece. About that it also shows that in the area of the transition between the carbide inlay and the much softer one Iron material existing impact body it into a strong, step-like wear comes. Through this excessive erosion in the area of connection between the Inlay and the impact body becomes a danger premature detachment of the inlay from the impact body additionally reinforced.
  • a method of manufacturing a wearing part of the type mentioned at the outset is from DE 33 15 125 C1 known.
  • wear-resistant zones on the wearing part generated that in the casting Manufacture of wear parts in the respective zones Tungsten carbide particles are deposited, which by a Completely enclosed iron material when pouring become.
  • the object of the invention is simple Average the service life of wear parts at the beginning mentioned type continue to improve, so that this next sufficient resilience against striking stress and sufficient Break resistance also increased resistance against abrasive wear.
  • the invention is also based on the object Process for the preparation of the invention Specify wear parts.
  • the type of solution according to the invention consists of the above mentioned task in that the inlay is perforated or is spongy and the intimate connection between the impact body and the inlay through into the Openings and pores of the inlay penetrated Iron material is formed.
  • the metal oxide and / or metal carbide ceramic inlays according to the invention each have a roughly porous structure and are crossed by through openings. These openings can pass through the respective inlay be designed in the form of perforations.
  • the size of the openings and pores is chosen so that the iron material of the impact body in the manufacture of the wearing parts according to the invention the respective inlays not only on all sides, as in the prior art encloses, but penetrates into them. This has to Consequence that the respective inlay safely in the impact body is held so that even with a heavy beating Stress a breakout of the inlay from the sun resulting composite is prevented.
  • the matrix structure affects in the area of wear-bearing zones favorably on the wear resistance because of the closely spaced, repeating combined arrangement of tough iron material and hard ceramic material of Inlays with a surface with respect to each Optimal properties (hardness / toughness) is created.
  • a secure hold of the inlay in the impact body can already be accomplished by the fact that Volume fraction penetrated by iron material is, at least 10% of the free, through the openings and Pore formed volume of the inlay.
  • the metal oxide and / or metal carbide ceramic can be made within the wearing part be arranged so that it is entire Wear area includes. This configuration is particularly advantageous if the wearing part is a is mainly exposed to abrasive stress.
  • the inlay in the wear part is only partially arranged there is where a predominant in later use abrasive wear occurs.
  • This Arrangement is especially with rotating striking tools advantageous, on the one hand, areas with almost exclusively striking stress and on the other hand Areas with impact-abrasive or predominantly exhibit abrasive stress. In the former Areas can then be targeted with an iron material sufficient resistance to striking Wear and sufficient ductility and therefore good Fracture resistance is provided while the others Areas through the metal-ceramic composite casting a high Resistant to abrasive wear and at the same time one thanks to the metallic connection retain the remaining break resistance.
  • the above mentioned task solved in that a perforated or sponge-like inlay in a mold introduced and with an iron-containing cast metal is poured and that the casting metal when pouring in penetrates the openings and pores of the inlay in such a way that the inlay completely after the casting process is penetrated by the cast metal.
  • FIGS. 1a to 2b show wear parts 10 and 11 represented in the form of tools that one out of one Iron material produced impact body 3, the one high resistance to impact stress as well has good fracture resistance, and different trained inlays 20 and 21 made of metal oxide or Include metal carbide ceramic.
  • the tools are each provided with a bore 4, into which a bolt or the like can be inserted, around the tool on a rotor, not shown Shredding plant, such as a shredder plant to fix.
  • the manufacture of the tools is done by the inlays 20 and 21 placed in a suitable mold and with cast in a cast metal made of ferrous material be that they have an intimate connection with the cast metal form.
  • the casting metal penetrates into the openings and Pores of the respective inlay until the inlay is completely penetrated by the molten metal.
  • inlay 24 is between two guide strips 31 arranged. This version is preferred there use where essentially exclusively abrasive Wear occurs.
  • Figure 4 shows a mirror-symmetrical Tool 3 rotating in a not shown Tool holder also not shown Crushing device can be positively mounted.
  • Tool area 4 of the impact body 3 is essentially exposed to a striking stress and is therefore made of a relatively high iron material Resistance to impact wear and tear sufficient break resistance manufactured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Powder Metallurgy (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Claims (6)

  1. Pièce d'usure, notamment pour le traitement de substances minérales, masses résiduelles de construction et chutes métalliques, comprenant un corps de frappe fait d'une matière à base de fer qui comporte, dans la région de sa zone d'usure, au moins un insert (20) en céramique d'oxyde métallique et/ou céramique de carbure métallique et lié intimement au corps de frappe (3) par coulée composite, caractérisée en ce que l'insert (20) est perforé ou poreux et la liaison intime entre le corps de frappe (3) et l'insert (20) est formée au moyen de la matière à base de fer imprégnant les trous et pores de l'insert (20).
  2. Pièce d'usure suivant la revendication 1, caractérisée en ce qu'au moins 10% du volume libre de l'insert (20) est imprégné de la matière à base de fer.
  3. Pièce d'usure suivant la revendication 1, caractérisée en ce que le volume libre de l'insert (20) est essentiellement complètement imprégné de la matière à base de fer.
  4. Pièce d'usure suivant l'une des revendications précédentes, caractérisée en ce que l'insert (24) occupe toute la zone d'usure de la pièce d'usure (14)
  5. Pièce d'usure suivant l'une des revendications 1 à 3, caractérisée en ce que l'insert (25) n'est essentiellement disposé que là où, lors de l'utilisation ultérieure, il se présente une sollicitation d'usure à effet abrasif prépondérant.
  6. Procédé de fabrication de pièces d'usure, notamment pour le traitement de substances minérales, masses résiduelles de construction et chutes métalliques, comprenant un corps de frappe (3) en matières à base de fer et au moins un insert (20) en céramique d'oxyde métallique et/ou céramique de carbure métallique qui est lié intimement au corps de frappe (3) par coulée composite, caractérisé en ce qu'un insert perforé ou poreux est placé dans un moule de coulée et reçoit par coulage un métal de coulée contenant du fer et en ce que, lors de l'infiltration par coulée, le métal de coulée pénètre dans les trous et pores de l'insert (20).
EP96924838A 1995-08-03 1996-07-02 Piece d'usure et son procede de fabrication Expired - Lifetime EP0841990B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19528512 1995-08-03
DE19528512A DE19528512C2 (de) 1995-08-03 1995-08-03 Verschleißteile und Verfahren zu deren Herstellung
PCT/EP1996/002879 WO1997005951A1 (fr) 1995-08-03 1996-07-02 Piece d'usure et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP0841990A1 EP0841990A1 (fr) 1998-05-20
EP0841990B1 true EP0841990B1 (fr) 1999-08-25

Family

ID=7768589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96924838A Expired - Lifetime EP0841990B1 (fr) 1995-08-03 1996-07-02 Piece d'usure et son procede de fabrication

Country Status (6)

Country Link
EP (1) EP0841990B1 (fr)
AT (1) ATE183669T1 (fr)
AU (1) AU6516896A (fr)
DE (2) DE19528512C2 (fr)
ES (1) ES2137715T3 (fr)
WO (1) WO1997005951A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005018854A1 (fr) * 2003-08-20 2005-03-03 F.A.R. - Fonderie Acciaierie Roiale - Spa Procede pour produire un element sujet a l'usure, et element sujet a l'usure ainsi obtenu
USRE39998E1 (en) 1996-10-01 2008-01-08 Magotteaux International S.A. Composite wear component
WO2011124345A1 (fr) 2010-04-07 2011-10-13 Vautid Gmbh Procédé de fabrication d'une pièce coulée présentant une résistance à l'usure améliorée, au moins par endroits
US8147980B2 (en) 2006-11-01 2012-04-03 Aia Engineering, Ltd. Wear-resistant metal matrix ceramic composite parts and methods of manufacturing thereof
CN108745508A (zh) * 2018-07-09 2018-11-06 徐州鑫华耐磨材料有限公司 陶瓷金属复合锤头及其制造方法

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1019297C1 (nl) 2001-06-26 2003-01-07 Johannes Petrus Andreas Zanden Versnellingsblok met verstevigingsdeel.
BR0215127B1 (pt) 2001-12-04 2011-12-13 método para produzir partes de desgaste fundida.
ES2268425T3 (es) * 2002-06-26 2007-03-16 Passage De Douro, Bvba Miembro acelerador compuesto estructural.
DE102007000835A1 (de) * 2007-10-09 2009-04-16 Hazemag & Epr Gmbh Brechwerkzeug für eine Brechvorrichtung
DE102010022492A1 (de) 2010-06-02 2011-12-08 Stahlwerke Bochum Gmbh Werkzeugeinsatz für eine Vorrichtung zum Zerkleinern von stückigem Material und mit einem solchen Einsatz ausgestattete Vorrichtung
DE102011113104B4 (de) * 2011-09-09 2018-04-26 Vautid Gmbh Verschleißbauteil
DE102011085520B4 (de) 2011-10-31 2017-05-04 General Electric Technology Gmbh Hammer einer Schlägermühle
CN102909113B (zh) * 2012-10-17 2015-07-01 株洲湘军硬质合金有限公司 一种破碎机用复合板锤的及其制作方法
CN105107576B (zh) * 2015-09-18 2017-10-20 中建材（合肥）水泥通用设备科技有限公司 一种反击式破碎机板锤及其制造方法
DE102017211948B3 (de) * 2017-07-12 2018-03-22 Thyssenkrupp Ag Siebsegment mit einem Verschleißschutz sowie Verfahren zum Herstellen eines Siebsegments
CA3096806C (fr) 2018-04-18 2021-08-31 Stahlwerke Bochum Gmbh Outil de percussion et rotor equipe de celui-ci destine a une machine pour fragmenter des objets metalliques ou des materiaux pierreux
WO2019201436A1 (fr) 2018-04-18 2019-10-24 Stahlwerke Bochum Gmbh Outil de percussion et rotor équipé de celui-ci destiné à une machine pour fragmenter des objets métalliques ou des matériaux pierreux
ES2980230T3 (es) 2018-09-20 2024-09-30 Stahlwerke Bochum Gmbh Tapa protectora y rotor equipado con ella para una máquina para triturar objetos metálicos o materiales rocosos

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2365747C3 (de) * 1973-07-13 1978-06-08 Verschleiss-Technik Dr.-Ing. Hans Wahl Gmbh & Co, 7302 Ostfildern Gegossener Schlagkörper
SU662261A1 (ru) * 1977-02-02 1979-05-15 Институт Проблем Литья Ан Украинской Сср Способ поверхностного легировани отливок
DE3315125C1 (de) * 1983-04-27 1984-11-22 Fried. Krupp Gmbh, 4300 Essen Verschleissbestaendiger Verbundkoerper und Verfahren zu seiner Herstellung
DE3618195A1 (de) * 1986-05-30 1987-12-03 Werner Schatz Hammer zum zerkleinern von beton, gestein oder dergleichen
JPH01113161A (ja) * 1987-10-28 1989-05-01 Sumitomo Metal Ind Ltd 金属−セラミックス複合管体およびその製造方法
JPH01192459A (ja) * 1988-01-26 1989-08-02 Sumitomo Metal Ind Ltd 金属−セラミックス複合管体およびその製造方法
DD293754A5 (de) * 1990-04-25 1991-09-12 Gisag-Ag Giesserei Und Maschinenbau Leipzig,De Verfahren zur herstellung von partiell verschleissgeschuetzten gussstuecken
BE1004573A4 (fr) * 1990-09-20 1992-12-15 Magotteaux Int Procede de fabrication d'une piece de fonderie bimetallique et piece d'usure realisee par ce procede.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE39998E1 (en) 1996-10-01 2008-01-08 Magotteaux International S.A. Composite wear component
WO2005018854A1 (fr) * 2003-08-20 2005-03-03 F.A.R. - Fonderie Acciaierie Roiale - Spa Procede pour produire un element sujet a l'usure, et element sujet a l'usure ainsi obtenu
US8147980B2 (en) 2006-11-01 2012-04-03 Aia Engineering, Ltd. Wear-resistant metal matrix ceramic composite parts and methods of manufacturing thereof
WO2011124345A1 (fr) 2010-04-07 2011-10-13 Vautid Gmbh Procédé de fabrication d'une pièce coulée présentant une résistance à l'usure améliorée, au moins par endroits
DE102010013999A1 (de) 2010-04-07 2011-10-13 Vautid Gmbh Verfahren zur Herstellung eines zumindest bereichsweise einen erhöhten Verschleißschutz aufweisenden Gusswerkstücks
CN108745508A (zh) * 2018-07-09 2018-11-06 徐州鑫华耐磨材料有限公司 陶瓷金属复合锤头及其制造方法

Also Published As

Publication number Publication date
ES2137715T3 (es) 1999-12-16
WO1997005951A1 (fr) 1997-02-20
EP0841990A1 (fr) 1998-05-20
DE19528512C2 (de) 2001-02-22
DE19528512A1 (de) 1997-02-06
DE59602897D1 (de) 1999-09-30
ATE183669T1 (de) 1999-09-15
AU6516896A (en) 1997-03-05

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