DE752414C - Method and device for lining cylindrical liners - Google Patents

Method and device for lining cylindrical liners

Info

Publication number
DE752414C
DE752414C DEK158595D DEK0158595D DE752414C DE 752414 C DE752414 C DE 752414C DE K158595 D DEK158595 D DE K158595D DE K0158595 D DEK0158595 D DE K0158595D DE 752414 C DE752414 C DE 752414C
Authority
DE
Germany
Prior art keywords
liner
coolant
shower
sectional plane
cross
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
DEK158595D
Other languages
German (de)
Inventor
Otto Heidelberger
Franz Stock
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz AG
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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to DEK158595D priority Critical patent/DE752414C/en
Application granted granted Critical
Publication of DE752414C publication Critical patent/DE752414C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00Casting in, on, or around objects which form part of the product
    • B22D19/08Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
    • B22D19/085Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal of anti-frictional metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Articles (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren und eine Vorrichtung zum Auskleiden zylindrischer Laufbüchsen, Lagerschalen, Lagerbüchsen, Zylinderlaufbüchsen u. dgl. mit Lagermetallen, z. B. Bleibronze, Rotguß, Weißmetall od. dgl., bei welchem das Lagermetall in Pulver- oder Späneform in die Büchse eingebracht und letztere alsdann von außen erwärmt und in schnelle Umdrehungen versetzt wird (Schleuderguß), worauf, nachdem das Lagermetall geschmolzen ist und infolge der Zentrifugalkraft eine gleichmäßige Schicht in der Laufbüchse bildet, die Laufbüchse durch Aufspritzen eines Kühlmittels, z. B. Wasser, abgekühlt wird.The invention relates to a method and an apparatus for lining cylindrical liners, bearing shells, bearing bushes, cylinder liners and the like with bearing metals, e.g. B. lead bronze, gunmetal, white metal or the like. In which the bearing metal is introduced into the can in powder or chip form and the latter then heated from the outside and set in rapid revolutions (centrifugal casting), whereupon after the bearing metal has melted and due to centrifugal force forms an even layer in the liner, the liner by spraying on a coolant, e.g. B. water is cooled.

Bei den bekannten Verfahren wurde das Kühlmittel gleichmäßig verteilt auf den gesamten Umfang der heißen Laufbüchse aufgespritzt. Das hat aber den erheblichen Nachteil, daß Risse in der Lagermetallschicht auftreten, die durch Schrumpfspannungen beim Abkühlen entstanden sind: Dieser Nachteil wird erfindungsgemäß dadurch beseitigt, daß das Kühlmittel die Außen, wand der Laufbüchse in einem Strahl bespült, dessen Stärke von der mittleren OOuerschnittsebene der Laufbüchse nach deren Enden hin stetig abnimmt. Die Abkühlung schreitet dabei von der Mitte der Laufbüchse nach deren Enden zu fort, so daß niemals Teile der Auskleidung, die noch nicht vollkommen abgekühlt sind, durch bereits vollkommen abgekühlte Teile eingeschlossen werden und dann infolge der Schrumpfung während der weiteren Abkühlung reißen.In the known methods, the coolant was evenly distributed sprayed onto the entire circumference of the hot liner. But that has the significant Disadvantage that cracks occur in the bearing metal layer caused by shrinkage stresses have arisen during cooling: This disadvantage is eliminated according to the invention by that the coolant washed the outside wall of the liner in a jet, of which Thickness from the middle cross-sectional plane of the liner to its ends steadily decreases. The cooling proceeds from the middle of the liner their ends continue, so that there are never parts of the lining that are not yet perfect have cooled down, are enclosed by parts that have already cooled down completely and then tear as a result of shrinkage during further cooling.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt.The drawing shows an exemplary embodiment of the subject matter of the invention shown.

Die mit Lagermetall auszukleidende Laufbüchse a wird, nachdem das Lagermetall in Form voh Pulver oder Späne mit einem Flußmittel vermischt in die Büchse ein.-gebracht worden ist, dicht zwischen zwei Teller b, bi einer Schleudervorrichtung gespannt und vermittels derselben in. schnelle Umdrehungen versetzt. Darauf wird zunächst der Brennerkranz c in die Ouermittelebene der Laufbüchse a geschoben und entzündet. Sobald das. Lagermetall geschmolzen ist und unter dem Einfluß der Zentrifugalkraft an der Innenwand der Laufbüchse eine gleichmäßige Schicht x bildet, wird der Brennerkranz c gelöscht und die Brause d in die Ouermittelebene der Laufbüchse geschoben (vgl. die Abb. i). Die die Laufbüchse U- oder ringförmig umgebende Brause d weist mehrere Lochreihen y auf. Wie die Abb. 2, die eine Abwicklung der Brause darstellt, erkennen läßt, nimmt die Lochzahl und damit der Austrittsquerschnitt der Lochreihen von der mittleren OOuerschnittsebene der Brause nach deren Rändern hin ab. Dadurch wird ein Strahl erzielt, dessen Stärke in der Ouermittelebene der Laufbüchse einen Größtwert aufweist und nach den Enden derselben hin stetig abnimmt. Dieser Kühlmittelstrahl bewirkt, däß die Abkühlung des Ausgusses in der Büchse von deren Quermittelebene nach deren Enden hin stetig fortschreitet.The liner a to be lined with bearing metal is after the Bearing metal in the form of powder or chips mixed with a flux in the Bush a.-has been brought tightly between two plates b, bi a centrifugal device tensioned and displaced by means of the same in. rapid revolutions. On it will first the burner ring c pushed into the Ouermiddle plane of the liner a and ignited. As soon as the bearing metal has melted and under the influence of centrifugal force forms a uniform layer x on the inner wall of the liner, becomes the burner ring c deleted and the shower d pushed into the center plane of the liner (cf. fig. i). The shower d surrounding the liner in a U or ring shape has several Rows of holes y. As can be seen in Fig. 2, which shows a development of the shower head lets take the number of holes and thus the exit cross-section of the rows of holes from the middle cross-sectional plane of the shower towards its edges. This will A beam is achieved, the strength of which is greatest in the center plane of the liner and decreases steadily towards the ends of the same. This jet of coolant causes the spout in the sleeve to cool from its transverse center plane progresses steadily towards its ends.

Die Brause d und der Brennerkranz c können durch Stege g miteinander verbunden werden und gemeinsam in Richtung der Drehachse der Schleudervorrichtung verschiebbar sein.The shower d and the burner ring c can be connected to one another by webs g are connected and together in the direction of the axis of rotation of the centrifugal device be movable.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zum Auskleiden zylindrischer Laufbüchsen u. dgl., in welche Lagermetall in Pulver- oder Späneform eingebracht, durch Außenbeheizung unter Schleuderkraftwirkung über die Innenfläche der Büchse gleichmäßig verteilt und dann durch ein Kühlmittel von außen gekühlt wird, dadurch gekennzeichnet, daß die Stärke des Kühlmittelstrahls von der mittleren Querschnittsebene der Laufbüchse nach deren Enden hin stetig verringert wird. PATENT CLAIMS: i. Method of lining cylindrical liners and the like, in which bearing metal is introduced in powder or chip form, by external heating evenly distributed over the inner surface of the liner under the effect of centrifugal force and then cooled from the outside by a coolant, characterized in that the strength of the coolant jet from the median cross-sectional plane of the liner towards the ends is steadily reduced. 2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch i, gekennzeichnet durch eine die auszukleidende Laufbüchse U- oder ringförmig umgebende Brause (d), bei welcher der Austrittsquerschnitt der einzeln nebeneinanderliegenden Lochreihen (y) von der mittleren Querschnittsebene der Brause nach beiden Seiten hin abnimmt.2. Device for performing the Method according to Claim i, characterized by a liner to be lined U-shaped or ring-shaped shower head (d), in which the outlet cross-section of the individually adjacent rows of holes (y) from the middle cross-sectional plane the shower decreases on both sides.
DEK158595D 1940-09-03 1940-09-03 Method and device for lining cylindrical liners Expired DE752414C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK158595D DE752414C (en) 1940-09-03 1940-09-03 Method and device for lining cylindrical liners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK158595D DE752414C (en) 1940-09-03 1940-09-03 Method and device for lining cylindrical liners

Publications (1)

Publication Number Publication Date
DE752414C true DE752414C (en) 1953-04-09

Family

ID=7253909

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK158595D Expired DE752414C (en) 1940-09-03 1940-09-03 Method and device for lining cylindrical liners

Country Status (1)

Country Link
DE (1) DE752414C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034800A (en) * 1974-08-16 1977-07-12 Alexandr Mikhailovich Pavlov Centrifugal plant for producing bimetallic sleeves
DE3111548A1 (en) * 1980-10-08 1982-05-06 Daido Metal Co. Ltd., Nagoya CONNECTING ROD FOR A RADIAL PISTON MOTOR AND METHOD FOR PRODUCING THE SAME

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034800A (en) * 1974-08-16 1977-07-12 Alexandr Mikhailovich Pavlov Centrifugal plant for producing bimetallic sleeves
DE3111548A1 (en) * 1980-10-08 1982-05-06 Daido Metal Co. Ltd., Nagoya CONNECTING ROD FOR A RADIAL PISTON MOTOR AND METHOD FOR PRODUCING THE SAME

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