DE704928C - Bearing shell - Google Patents

Bearing shell

Info

Publication number
DE704928C
DE704928C DER100079D DER0100079D DE704928C DE 704928 C DE704928 C DE 704928C DE R100079 D DER100079 D DE R100079D DE R0100079 D DER0100079 D DE R0100079D DE 704928 C DE704928 C DE 704928C
Authority
DE
Germany
Prior art keywords
quenching
bearing shell
iron
zones
poured
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
DER100079D
Other languages
German (de)
Inventor
Ulrich Klinge
Ernst Saemann
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.)
Ruhrstahl AG
Original Assignee
Ruhrstahl 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 Ruhrstahl AG filed Critical Ruhrstahl AG
Priority to DER100079D priority Critical patent/DE704928C/en
Application granted granted Critical
Publication of DE704928C publication Critical patent/DE704928C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
    • B22D19/085—Casting 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)
  • Silicon Compounds (AREA)

Description

DEUTSCHES REICHGERMAN EMPIRE

. inoL ci. inoL ci

30 MEI 194130 MEI 1941

AUSGEGEBEN AM
10. APRIL 1941ISSUED ON
APRIL 10, 1941

REICHSPATENTAMTREICH PATENT OFFICE

PATENTSCHRIFTPATENT LETTERING

KLASSE 31c GRUPPE 25«iCLASS 31c GROUP 25 «i

R 10007pR 10007p

Ulrich Klinge in Hattingen, Ruhr, und Ernst Sämann in Blankenstein über Hattingen, Ruhr,Ulrich Klinge in Hattingen, Ruhr, and Ernst Sämann in Blankenstein via Hattingen, Ruhr,

sind als Erfinder genannt worden.have been named as inventors.

Ruhrstahl Akt.-Ges. in Witten LagerschaleRuhrstahl Akt.-Ges. in Witten bearing shell

Zusatz zum Patent 700Addition to patent 700

Patentiert im Deutschen Reich vom 22. April 1937 anPatented in the German Reich on April 22, 1937

Das H auptpatent hat angefangen am 24. Januar 1037The H auptpatent started on January 24, 1037

Patenterteilung bekanntgemacht am 33. März 1941Patent granted March 33, 1941

In dem Patent 700 732 ist ein Verfahren zur Herstellung von Lagern aus Gußeisen vorgeschlagen, bei dem Hämatit mit hohem Kohlenstoffgehalt und einem Siliciumgehalt von r,6 bis 3,5% in Sandformen mit eingelegten Abschreckplatten unter solchen Abkühlungsbedingungen vergossen wird, daß an der Oberfläche der Gußstücke ein feingraphitisches Gefüge mit mäßiger Härte entsteht. Zur Regelung der Abschreckwirkung können die Abschreckkokillen bzw. -platten in an sich, bekannter Weise auch vorgewärmt oder in ihrer Dicke verändert werden.In patent 700,732 there is a method of making bearings from cast iron proposed at the hematite with a high carbon content and a silicon content from r, 6 to 3.5% in sand molds with inlaid quenching plates under such cooling conditions is poured that on the surface of the castings a fine graphite Structure with moderate hardness arises. The quenching molds or plates can be used to regulate the quenching effect can also be preheated or changed in thickness in a manner known per se.

Bei der weiteren Ausbildung dieser Erfindung hat es sich als vorteilhaft erwiesen, in manchen Fällen, z. B. beim Herstellen von Lagerbuchsen, das Abschrecken von außen her vorzunehmen. Die Auüenwandung des zu gießenden Lagerkörpers wird also von einer Dauerform (Kokille) geformt, deren Abschreckwirkung durch an sich bekannte Maßnahmen, z. B. Wahl der Wandstärke oder des Werkstoffes der Kokille, mindestens so stark bemessen sein muß, daß das Abschrecken bis zu den Zonen, die die spätere Lauffläche bilden sollen, zur Auswirkung kommt und dort ein feingraphitisches Gefüge von mäßiger Härte entsteht. Die weiter innen liegenden Teile des so gegossenen Rohlings müssen selbstverständlich entfernt werden. Die vorliegende Erfindung bringt eine Ersparnis an Formarbeit mit sich, vor allem aber ermöglicht sie auch das Herstellen von Lagerbuchsen mit kleinen Bohrungen, beiIn the further development of this invention, it has proven to be advantageous in some cases, e.g. B. in the manufacture of bearing bushes, quenching from the outside to make here. The outer wall of the zu Casting bearing body is thus formed by a permanent mold (chill mold), the quenching effect of which by measures known per se, e.g. B. Choice of wall thickness or the material of the mold, at least so must be large enough that the quenching to the zones that are to form the subsequent running surface to have an effect comes and a fine graphitic structure of moderate hardness arises there. The ones further inside Of course, lying parts of the blank cast in this way must be removed. The present invention involves a saving in molding work, above all but it also enables the production of bearing bushes with small bores

denen ein eingesetzter Abschreckkern keine genügende Abschreckwirkung mit Sicherheit gewährleisten würde.for which an inserted quench core does not have a sufficient quenching effect with certainty would guarantee.

Claims (1)

Patentanspruch:Claim: Verfahren zur Herstellung von Lagern aus Hämatiteisen mit hohem Kohlenstoffgehalt und einem Siliciumgehalt von 1,6 bis 3,50/0 nach Patent 700732, dadurch gekennzeichnet, daß das Eisen in metallene Dauerformen gegossen \vird, deren Abschreckwirkung so bemessen ist, daß das Abschrecken mindestens bis zu den Zonen des Rohlings zur Auswirkung kommt, die nach dem Entfernen der weiter innen Hegenden Werkstoffteile die Laufflächen bilden sollen.Method of manufacturing bearings from high carbon hematite iron and a silicon content of 1.6 to 3.50 / 0 according to patent 700732, thereby characterized in that the iron is poured into permanent metal molds, whose The quenching effect is such that the quenching is effective at least up to the zones of the blank comes that after removing the material parts lying further inside the Should form running surfaces.
DER100079D 1937-04-22 1937-04-22 Bearing shell Expired DE704928C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER100079D DE704928C (en) 1937-04-22 1937-04-22 Bearing shell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER100079D DE704928C (en) 1937-04-22 1937-04-22 Bearing shell

Publications (1)

Publication Number Publication Date
DE704928C true DE704928C (en) 1941-04-10

Family

ID=7420291

Family Applications (1)

Application Number Title Priority Date Filing Date
DER100079D Expired DE704928C (en) 1937-04-22 1937-04-22 Bearing shell

Country Status (1)

Country Link
DE (1) DE704928C (en)

Similar Documents

Publication Publication Date Title
DE704928C (en) Bearing shell
DE1267382B (en) Process for the prevention of edge decarburization in precision castings and backfill compounds for the process
DE1181255B (en) Process for the production of sheets or plates from an iron-silicon alloy with a crystallographically oriented structure
DE1608051B2 (en) Process for the production of a sieve core for the inoculation of steel and cast iron melts
DE846900C (en) Casting mold for the continuous casting of metals
DE925856C (en) Casting mold for the production of high quality steels
DE519237C (en) Process for the production of hollow metal bodies by centrifugal casting
DE1002508B (en) Process to prevent the edge decarburization of castings made from carbon-containing alloys and the casting mold for carrying out the process
DE697969C (en) Centrifugal casting mold
DE720329C (en) Process for improving the permanent magnet properties of iron-nickel-aluminum alloys that can be achieved by subsequent magnetization
DE874361C (en) Process for the production of workpieces from cast iron, such as in particular molds, as well as mold or core for performing the process
DE332914C (en) Process for the production of metal alloys with added graphite
DE2429905A1 (en) METHOD OF MANUFACTURING METAL CASTINGS OR CAVITIES
DE678763C (en) Process for accelerating metallurgical slag reactions
DE1080269B (en) Process for making molds for precision casting with lost wax
DE973984C (en) Metallic core for casting molds, molds or the like.
DE1009650B (en) Process for the manufacture of foundry iron that is cast on the casting machine
DE700732C (en) Process for the production of bearing shells from cast iron
DE843421C (en) Treatment of a cast iron melt for centrifugal cast hollow bodies
DE758029C (en) Process for the production of bearing shells from cast iron
AT134249B (en) Process for void-free casting of iron and non-ferrous metals.
DE730886C (en) Process for the production of high quality crucible cast steel
DE668857C (en) Process for the production of cast iron hollow bodies
DE557467C (en) Process for the manufacture of axle box linings
DE2164698A1 (en) Casting forging billets - free from base-sand