EP0841990B1 - Working part and process for its production - Google Patents
Working part and process for its production Download PDFInfo
- 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
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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.
Abstract
Description
Die Erfindung betrifft ein Verschleißteil für die Aufbereitung von Mineralstoffen, Baurestmassen und Metallabfällen, mit einem aus Eisenwerkstoff hergestellten Schlagkörper, welcher im Bereich seiner Verschleißzone mindestens ein aus Metalloxyd- und/oder Metallkarbid-Keramik gefertigtes und durch Verbundguß mit dem Schlagkörper innig verbundenes Inlay aufweist, und ein Verfahren zu deren Herstellung. Verschleißteile dieser Art werden beispielsweise in Shredder-Anlagen, Hammer- und Prallmühlen zur Aufbereitung von Mineralstoffen, Baurestmassen, Schrott und ähnlichen Materialien eingesetzt.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.
In der Aufbereitungstechnik sind Verschleißteile sowie Werkzeuge aus Eisenwerkstoffen bekannt, die einen hohen Widerstand gegen eine schlagende Beanspruchung aufweisen und gleichzeitig über eine ausreichende Bruchsicherheit verfügen. Diese Festigkeitseigenschaften, insbesondere die Forderung nach ausreichender Duktilität, verringern aber die Widerstandsfähigkeit dieser Verschleißteile gegen abrasiven Verschleiß. Die bekannten Verschleißteile müssen daher in relativ kurzen Zeitabständen ausgewechselt werden, was jeweils zu unproduktiven Stillstandzeiten der Aufbereitungsanlagen führt.In processing technology there are wear parts as well Tools made of ferrous materials are known to have a high Resist impact impact and at the same time about sufficient break resistance feature. These strength properties, in particular reduce the demand for sufficient ductility but the durability of these wear parts against abrasive wear. The well-known wear parts must therefore be in relatively short intervals to be replaced, each resulting in unproductive Processing plant downtimes.
Verschleißteile der eingangs genannten Art sind aus der deutschen Offenlegungsschrift DE 36 18 195 A1 bekannt. Bei den bekannten Verschleißteilen ist ein als monolitischer Hartmetallblock ausgeformtes Inlay vorgesehen. Dieses Hartmetall-Inlay ist in einem Verbundguß mit dem eigentlichen Schlagkörper des Verschleißteils verbunden.Wear parts of the type mentioned are from the German published application DE 36 18 195 A1 known. In 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.
Aus der EP-A-0 476 496 ist ein Verschleißteil und ein Verfahren zur Herstellung eines solchen Verschleißteils bekannt, bei dem Einsätze aus einem ersten Material in eine Form eingesetzt werden, die mit einem Gußwerkstoff aus einem zweiten Material umgossen werden. Dabei wird eine Mehrzahl solcher Einsätze in die Form eingesetzt, wobei Rippen der Einsätze diese auf einen vorgegebenen Abstand halten. Der auf diese Weise zwischen den Rippen gebildete Raum wird durch den anschließend in die Form gegossenen Gießwerkstoff aufgefüllt. Dabei soll keine metallogische Verbindung zwischen dem Einsatzstück und dem Gießwerkstoff stattfinden. Die Einsatzstücke bei dem bekannten Verschleißteil sind wie beim Stand der Technik nach DE 36 18 195 A1 als monolithische Einheiten ausgebildet. Die rippenförmigen Vorsprünge stellen dabei sicher, daß der Gießwerkstoff den jeweiligen Einsatzkörper derart umschließt, daß er fester als beim der Stand der Technik nach DE 36 18 195 A1 in dem Gießwerkstoff gehalten ist. From 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.
Die bekannten Verschleißteile werden als Hämmer in Schlagwerken, Hammermühlen und Steinmühlen eingesetzt. Sie weisen aufgrund der Anordnung des Hartmetall-Inlays im Bereich der stärksten abrasiven Beanspruchung eine gegenüber solchen Verschleißteilen, die kein entsprechendes Inlay aufweisen, deutlich verbesserte Haltbarkeit auf. Bei der praktischen Erprobung der bekannten Verschleißteile zeigt sich jedoch, daß häufig ein nicht ausreichender Halt zwischen dem Schlagkörper und dem Inlay gewährleistet ist. Dies bringt die Gefahr mit sich, daß bei sehr starker Beanspruchung das Inlay ganzstückig aus dem Schlagkörper ausbricht. Darüber hinaus zeigt sich, daß im Bereich des Übergangs zwischen dem Hartmetall-Inlay und dem aus sehr viel weicheren Eisenwerkstoff bestehenden Schlagkörper es zu einem starken, stufenartigen Verschleiß kommt. Durch diesen übermäßigen Abtrag im Bereich der Verbindung zwischen dem Inlay und dem Schlagkörper wird die Gefahr einer vorzeitigen Ablösung des Inlays von dem Schlagkörper zusätzlich verstärkt.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.
Ein Verfahren zur Herstellung eines Verschleißteils der eingangs genannten Art ist aus der DE 33 15 125 C1 bekannt. Bei dem bekannten Verfahren werden verschleißbeständige Zonen an dem Verschleißteil dadurch erzeugt, daß bei der gießtechnisch erfolgenden Herstellung der Verschleißteile in den jeweiligen Zonen Hartmetallteilchen angelagert werden, welche von einem Eisenwerkstoff beim Abgießen vollständig umschlossen werden.A method of manufacturing a wearing part of the type mentioned at the outset is from DE 33 15 125 C1 known. In the known method 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.
Die Aufgabe der Erfindung besteht darin, mit einfachen Mitteln die Standzeit von Verschleißteilen der eingangs genannten Art weiter zu verbessern, so daß diese neben einer ausreichenden Widerstandsfähigkeit gegen eine schlagende Beanspruchung und einer ausreichenden Bruchsicherheit auch eine erhöhte Widerstandsfähigkeit gegen abrasiven Verschleiß aufweisen.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.
Die Erfindung liegt ferner die Aufgabe zugrunde, ein Verfahren zur Herstellung erfindungsgemäßer Verschleißteile anzugeben.The invention is also based on the object Process for the preparation of the invention Specify wear parts.
Hinsichtlich der Verschleißteile der eingangs genannten Art besteht die erfindungsgemäße Lösung der voranstehend genannten Aufgabe darin, daß das Inlay perforiert oder schwammartig ausgebildet ist und die innige Verbindung zwischen dem Schlagkörper und dem Inlay durch in die Öffnungen und Poren des Inlays eingedrungenen Eisenwerkstoff gebildet ist.With regard to the wear parts of the aforementioned 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.
Die erfindungsgemäßen Metalloxyd- und/oder Metallkarbid-Keramik-Inlays weisen jeweils eine grob poröse Struktur auf und sind von durchgehenden Öffnungen durchzogen. Diese das jeweilige Inlay durchziehenden Öffnungen können dabei in Form von Perforationen ausgebildet sein. Ebenso können die erfindungsgemäßen Inlays eine schwammartige, durchlässige Struktur aufweisen, deren Öffnungen und Poren miteinander verbunden sind. Die Größe der Öffnungen und Poren ist dabei so gewählt, daß der Eisenwerkstoff des Schlagkörpers bei der Herstellung der erfindungsgemäßen Verschleißteile die jeweiligen Inlays nicht nur, wie beim Stand der Technik, allseitig umschließt, sondern in diese eindringt. Dies hat zur Folge, daß das jeweilige Inlay sicher in dem Schlagkörper gehalten ist, so daß auch bei einer schweren schlagenden Beanspruchung ein Herausbrechen des Inlays aus dem so entstandenen Verbund verhindert ist. Die Matrixstruktur im Bereich der verschleißbelasteten Zonen wirkt sich günstig auf die Verschleißbeständigkeit aus, da durch die eng benachbarte, sich wiederholende kombinierte Anordnung von zähem Eisenwerkstoff und hartem Keramikwerkstoff des Inlays eine Oberfläche mit hinsichtlich der jeweilige Belastung optimalen Eigenschaften (Härte/Zähigkeit) geschaffen ist.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. As well can the inlays according to the invention a sponge-like, have permeable structure, the openings and Pores are interconnected. 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.
Ein sicherer Halt des Inlays in dem Schlagkörper kann schon dadurch bewerkstelligt werden, daß der Volemenanteil, welcher von Eisenwerkstoff durchdrungen ist, mindestens 10% des freien, durch die Öffnungen und Poren gebildeten Volumens des Inlays beträgt.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.
Die besten Ergebnisse hinsichtliche der Verschleißbeständigkeit lassen sich dadurch erzielen, daß das freie Volumen des Inlays im wesentlichen vollständig mit Eisenwerkstoff gefüllt ist. Bei einer derart vollständigen Durchdringung des Inlays mit Eisenwerkstoff weist beim späteren Einsatz der erfindungsgemäßen Verschleißteile die jeweils einem stark abrasiven Verschleiß ausgesetzten Oberflächen eine netzartig angeordnete Matrix aus Metalloxyd- und/oder Metallkarbid-Keramik und Eisenwerkstoff aufweisen.The best results in terms of Wear resistance can be achieved in that the free volume of the inlay is essentially complete is filled with iron material. With such a full penetration of the inlay with iron material indicates later use of the invention Wear parts which are each highly abrasive Surfaces exposed to wear a net-like arranged matrix of metal oxide and / or metal carbide ceramic and have iron material.
Das aus Metalloxyd- und/oder Metallkarbid-Keramik gefertigte Inlay kann innerhalb des Verschleißteiles derart angeordnet sein, daß es dessen gesamten Verschleißbereich umfaßt. Diese Ausgestaltung ist besonders vorteilhaft, wenn das Verschleißteil einer überwiegend abrasiven Beanspruchung ausgesetzt ist.The metal oxide and / or metal carbide ceramic The inlay 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.
Eine andere vorteilhafte Ausgestaltung besteht darin, daß das Inlay im Verschleißteil partiell nur dort angeordnet ist, wo bei der späteren Verwendung eine überwiegend abrasive Verschleißbeanspruchung auftritt. Diese Anordnung ist besonders bei rotierenden Schlagwerkzeugen von Vorteil, die einerseits Bereiche mit fast ausschließlich schlagender Beanspruchung und andererseits Bereiche mit schlagend-abrasiver oder überwiegend abrasiver Beanspruchung aufweisen. In den erstgenannten Bereichen kann dann gezielt ein Eisenwerkstoff mit ausreichender Widerstandsfähigkeit gegen schlagenden Verschleiß sowie ausreichender Duktilität und damit guter Bruchsicherheit vorgesehen werden, während die anderen Bereiche durch den Metall-Keramik-Verbundguß eine hohe Widerstandsfähigkeit gegen abrasiven Verschleiß aufweisen und durch die metallische Verbindung zugleich eine restliche Bruchsicherheit behalten.Another advantageous embodiment is that 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.
Hinsichtlich des Verfahrens wird die voranstehend genannte Aufgabe dadurch gelöst, daß ein perforiert oder schwammartig ausgebildetes Inlay in eine Gußform eingebracht und mit einem eisenhaltigen Gießmetall abgegossen wird und daß das Gießmetall beim Abgießen in die Öffnungen und Poren des Inlays derart eindringt, daß das Inlay nach Beendigung des Gießvorganges vollständig von dem Gießmetall durchdrungen ist.With regard to the method, 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.
Nachfolgend wird die Erfindung anhand einer Ausführungsbeispiele darstellenden Zeichnung näher erläutert. Es zeigen:
- Fig. 1a
- ein Werkzeug mit einem perforierten Inlay in einer Seitenansicht;
- Fig. 1b
- das Werkzeug nach Fig. 1a im Längsschnitt;
- Fig. 2a
- ein Werkzeug mit einem schwammartig ausgebildeten Inlay in einer Seitenansicht;
- Fig. 2b
- das Werkzeug nach Fig. 2a im Längsschnitt;
- Fig. 3
- ein Verschleißteil, bei dem der metallisch-keramische Verbund die gesamte Verschleißfläche umfaßt, in perspektivischer Ansicht;
- Fig. 4
- ein Werkzeug, das nur partiell mit einem metallisch-keramischen Verbund versehen ist, in perspektivischer Ansicht.
- Fig. 1a
- a tool with a perforated inlay in a side view;
- Fig. 1b
- the tool of Figure 1a in longitudinal section.
- Fig. 2a
- a tool with a sponge-like inlay in a side view;
- Fig. 2b
- the tool of Figure 2a in longitudinal section.
- Fig. 3
- a wearing part, in which the metallic-ceramic composite comprises the entire wearing surface, in a perspective view;
- Fig. 4
- a tool that is only partially provided with a metallic-ceramic composite, in perspective view.
In den Figuren 1a bis 2b sind Verschleißteile 10 und 11
in Form von Werkzeugen dargestellt, die einen aus einem
Eisenwerkstoff hergestellten Schlagkörper 3, der einen
hohen Widerstand gegen schlagende Beanspruchung sowie
eine gute Bruchsicherheit aufweist, und unterschiedlich
ausgebildete Inlays 20 und 21 aus Metalloxyd- oder
Metallkarbit-Keramik umfassen.FIGS. 1a to 2b show wear
Die Werkzeuge sind jeweils mit einer Bohrung 4 versehen,
in die ein Bolzen oder dergleichen eingefügt werden kann,
um das Werkzeug an einem nicht gezeigten Rotor einer
Zerkleinerungsanlage, wie beispielsweise einer Shredder-Anlage
zu befestigen.The tools are each provided with a
Die Herstellung der Werkzeuge erfolgt, indem die Inlays
20 und 21 in eine geeignete Gußform eingebracht und mit
einem Gießmetall aus Eisenwerkstoff derart abgegossen
werden, daß sie eine innige Verbindung mit dem Gießmetall
bilden. Dabei dringt das Gießmetall in die Öffnungen und
Poren des jeweiligen Inlays ein, bis das Inlay
vollständig von der Metallschmelze durchdrungen ist.The manufacture of the tools is done by the
Bei dem in Figur 3 dargestellten Verschleißteil 12 umfaßt
der aus dem vom Eisenwerkstoff durchzogenen,
schwammartigen Inlays 24 gebildete metallisch-keramische
Verbund den gesamten Verschleißbereich. Das betreffende
Inlay 24 ist dazu zwischen zwei Führungsleisten 31
angeordnet. Diese Ausführung ist bevorzugt dort
einzusetzen, wo im wesentlichen ausschließlich abrasiver
Verschleiß auftritt.In the
Figur 4 zeigt ein spiegelsymmetrisch ausgebildetes
Werkzeug 3, das in einem nicht gezeigten rotierenden
Werkzeughalter einer ebenfalls nicht gezeigten
Zerkleinerungsvorrichtung formschlüssig montierbar ist.
Der in Dreh- bzw. Arbeitsrichtung D weisende
Werkzeugbereich 4 des Schlagkörpers 3 ist im wesentlichen
einer schlagenden Beanspruchung ausgesetzt und ist daher
aus einen Eisenwerkstoff mit relativ hoher
Widerstandsfähigkeit gegen schlagenden Verschleiß und
ausreichender Bruchsicherheit hergestellt. An der der
Dreh- bzw. Arbeitsrichtung D des Werkzeuges abgewandten
Rückseite 15 tritt dagegen eine überwiegend abrasive
Verschleißbeanspruchung auf. Dort ist ein schwammartig
ausgebildetes Inlay 23 aus Metalloxyd- oder Metallkarbid-Keramik
angeordnet, welches einen hohen Widerstand gegen
die abrasive Beanspruchung aufweist und in dessen
Öffnungen und Poren der Eisenwerkstoff des Schlagkörpers
3 eingedrungen ist, so daß zwischen dem Inlay 23 und dem
Schlagkörper 3 eine innige Verbindung gebildet ist.Figure 4 shows a mirror-
Claims (6)
- A wearing part, in particular for processing mineral aggregates, construction residue materials and metal wastes, with a beater body manufactured from a ferrous material having in ist wear zone at least one inlay (20) made of a metal oxide ceramic and/or a metal carbide ceramic and intimately bonded to the beater body (3) by composite casting, characterized in that the inlay (20) is perforated or designed to be spongy, and the intimate connection between the beater body (3) and the inlay (20) is formed by ferrous material that has penetrated into the orifices and pores of the inlay (20).
- A wearing part according to Claim 1, characterized in that the ferrous material penetrates through at least 10 % of the free volume of the inlay (20).
- A wearing part according to Claim 1, characterized in that the ferrous material penetrates through essentially all of the free volume of the inlay (20).
- A wearing part according to one of the preceding claims, characterized in that the inlay (24) comprises the entire wear zone of the working part (14).
- A wearing part according to one of Claims 1 through 3, characterized in that the inlay (25) is essentially arranged only where a predominantly abrasive wearing stress occurs in subsequent use.
- A method of producing wearing parts, in particular for processing mineral aggregates, construction residue materials and metal wastes, with a beater body (3) manufactured from ferrous materials and with at least one inlay (20) made of a metal oxide ceramic and/or a metal carbide ceramic intimately bonded to the beater body (3) by composite casting, characterized in that an inlay that is perforated or designed to be spongy is introduced into a casting mold, and a ferrous casting metal is cast in the mold, and the casting metal penetrates into the orifices and pores of the inlay (20) in casting.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19528512A DE19528512C2 (en) | 1995-08-03 | 1995-08-03 | Wear parts and process for their manufacture |
| DE19528512 | 1995-08-03 | ||
| PCT/EP1996/002879 WO1997005951A1 (en) | 1995-08-03 | 1996-07-02 | Working part and process for its production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0841990A1 EP0841990A1 (en) | 1998-05-20 |
| EP0841990B1 true EP0841990B1 (en) | 1999-08-25 |
Family
ID=7768589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96924838A Expired - Lifetime EP0841990B1 (en) | 1995-08-03 | 1996-07-02 | Working part and process for its production |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0841990B1 (en) |
| AT (1) | ATE183669T1 (en) |
| AU (1) | AU6516896A (en) |
| DE (2) | DE19528512C2 (en) |
| ES (1) | ES2137715T3 (en) |
| WO (1) | WO1997005951A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005018854A1 (en) * | 2003-08-20 | 2005-03-03 | F.A.R. - Fonderie Acciaierie Roiale - Spa | Method to produce an element subject to wear, and element subject to wear thus obtained |
| USRE39998E1 (en) | 1996-10-01 | 2008-01-08 | Magotteaux International S.A. | Composite wear component |
| DE102010013999A1 (en) | 2010-04-07 | 2011-10-13 | Vautid Gmbh | A method for producing a cast workpiece having at least partially increased wear protection |
| US8147980B2 (en) | 2006-11-01 | 2012-04-03 | Aia Engineering, Ltd. | Wear-resistant metal matrix ceramic composite parts and methods of manufacturing thereof |
| CN108745508A (en) * | 2018-07-09 | 2018-11-06 | 徐州鑫华耐磨材料有限公司 | Ceramet composite hammer head and its manufacturing method |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1019297C1 (en) | 2001-06-26 | 2003-01-07 | Johannes Petrus Andreas Zanden | Gear block with reinforcement part. |
| JP4222944B2 (en) | 2001-12-04 | 2009-02-12 | マゴット アンテルナショナル エス．アー． | Casting parts with enhanced wear resistance |
| ES2268425T3 (en) * | 2002-06-26 | 2007-03-16 | Passage De Douro, Bvba | STRUCTURAL COMPOUND ACCELERATOR MEMBER. |
| DE102007000835A1 (en) * | 2007-10-09 | 2009-04-16 | Hazemag & Epr Gmbh | Breaking tool for a breaking device |
| DE102010022492A1 (en) | 2010-06-02 | 2011-12-08 | Stahlwerke Bochum Gmbh | Tool insert for a device for chopping lumpy material and equipped with such an insert device |
| DE102011113104B4 (en) * | 2011-09-09 | 2018-04-26 | Vautid Gmbh | wear component |
| DE102011085520B4 (en) | 2011-10-31 | 2017-05-04 | General Electric Technology Gmbh | Hammer of a beater mill |
| CN102909113B (en) * | 2012-10-17 | 2015-07-01 | 株洲湘军硬质合金有限公司 | Composite board hammer for crusher and production method of same |
| CN105107576B (en) * | 2015-09-18 | 2017-10-20 | 中建材（合肥）水泥通用设备科技有限公司 | A kind of board hammer of impact crusher and its manufacture method |
| DE102017211948B3 (en) * | 2017-07-12 | 2018-03-22 | Thyssenkrupp Ag | Sieve segment with a wear protection and method for producing a sieve segment |
| CA3096806C (en) | 2018-04-18 | 2021-08-31 | Stahlwerke Bochum Gmbh | Striking tool and rotor fitted therewith for a machine for crushing metal objects or stone materials |
| ES2906300T3 (en) | 2018-04-18 | 2022-04-18 | Stahlwerke Bochum Gmbh | Impact tool and rotor equipped with it for a machine for grinding metal objects or rocky materials |
| EP3852931B1 (en) | 2018-09-20 | 2024-04-03 | Stahlwerke Bochum GmbH | Protective cap and rotor for a comminution machine for metal parts and rock material equipped therewith |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2365747C3 (en) * | 1973-07-13 | 1978-06-08 | Verschleiss-Technik Dr.-Ing. Hans Wahl Gmbh & Co, 7302 Ostfildern | Cast impact body |
| SU662261A1 (en) * | 1977-02-02 | 1979-05-15 | Институт Проблем Литья Ан Украинской Сср | Method of surface-alloying of castings |
| DE3315125C1 (en) * | 1983-04-27 | 1984-11-22 | Fried. Krupp Gmbh, 4300 Essen | Wear-resistant composite body and method for its production |
| DE3618195A1 (en) * | 1986-05-30 | 1987-12-03 | Werner Schatz | Hammer for comminuting concrete, rock or the like |
| JPH01113161A (en) * | 1987-10-28 | 1989-05-01 | Sumitomo Metal Ind Ltd | Metal-ceramic composite tube and its manufacture |
| JPH01192459A (en) * | 1988-01-26 | 1989-08-02 | Sumitomo Metal Ind Ltd | Metal-ceramics composite tubular body and its manufacture |
| DD293754A5 (en) * | 1990-04-25 | 1991-09-12 | Gisag-Ag Giesserei Und Maschinenbau Leipzig,De | METHOD FOR PRODUCING PARTICULARLY WEAR-PROOFED CASTINGS |
| BE1004573A4 (en) * | 1990-09-20 | 1992-12-15 | Magotteaux Int | Process for producing a piece bimetallic foundry and wear piece made thereby. |
-
1995
- 1995-08-03 DE DE19528512A patent/DE19528512C2/en not_active Expired - Fee Related
-
1996
- 1996-07-02 EP EP96924838A patent/EP0841990B1/en not_active Expired - Lifetime
- 1996-07-02 AT AT96924838T patent/ATE183669T1/en not_active IP Right Cessation
- 1996-07-02 DE DE59602897T patent/DE59602897D1/en not_active Expired - Lifetime
- 1996-07-02 AU AU65168/96A patent/AU6516896A/en not_active Abandoned
- 1996-07-02 WO PCT/EP1996/002879 patent/WO1997005951A1/en active IP Right Grant
- 1996-07-02 ES ES96924838T patent/ES2137715T3/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE39998E1 (en) | 1996-10-01 | 2008-01-08 | Magotteaux International S.A. | Composite wear component |
| WO2005018854A1 (en) * | 2003-08-20 | 2005-03-03 | F.A.R. - Fonderie Acciaierie Roiale - Spa | Method to produce an element subject to wear, and element subject to wear thus obtained |
| US8147980B2 (en) | 2006-11-01 | 2012-04-03 | Aia Engineering, Ltd. | Wear-resistant metal matrix ceramic composite parts and methods of manufacturing thereof |
| DE102010013999A1 (en) | 2010-04-07 | 2011-10-13 | Vautid Gmbh | A method for producing a cast workpiece having at least partially increased wear protection |
| WO2011124345A1 (en) | 2010-04-07 | 2011-10-13 | Vautid Gmbh | Method for producing a cast workpiece having increased wear protection at least in regions |
| CN108745508A (en) * | 2018-07-09 | 2018-11-06 | 徐州鑫华耐磨材料有限公司 | Ceramet composite hammer head and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19528512A1 (en) | 1997-02-06 |
| ATE183669T1 (en) | 1999-09-15 |
| ES2137715T3 (en) | 1999-12-16 |
| AU6516896A (en) | 1997-03-05 |
| DE19528512C2 (en) | 2001-02-22 |
| WO1997005951A1 (en) | 1997-02-20 |
| DE59602897D1 (en) | 1999-09-30 |
| EP0841990A1 (en) | 1998-05-20 |
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