AT212250B - Roller for rolling semi-finished or intermediate products made of steel or non-ferrous metals - Google Patents

Roller for rolling semi-finished or intermediate products made of steel or non-ferrous metals

Info

Publication number
AT212250B
AT212250B AT416459A AT416459A AT212250B AT 212250 B AT212250 B AT 212250B AT 416459 A AT416459 A AT 416459A AT 416459 A AT416459 A AT 416459A AT 212250 B AT212250 B AT 212250B
Authority
AT
Austria
Prior art keywords
roller
steel
ferrous metals
products made
intermediate products
Prior art date
Application number
AT416459A
Other languages
German (de)
Original Assignee
Inter Continentaler Huettenbau
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 Inter Continentaler Huettenbau filed Critical Inter Continentaler Huettenbau
Priority to AT416459A priority Critical patent/AT212250B/en
Priority claimed from FR798589A external-priority patent/FR1228694A/en
Application granted granted Critical
Publication of AT212250B publication Critical patent/AT212250B/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B27/00Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/005Rolls with a roughened or textured surface; Methods for making same
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B2267/00Roll parameters
    • B21B2267/10Roughness of roll surface

Description

  

   <Desc/Clms Page number 1> 
 



  Walze zum Walzen von Halbzeug oder von Zwischenprodukten aus Stahl   oder Nichteisenmetallen    
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 zuerstDurch   diesebeiden aufeinanderfolgendenbehandlungen erhält   die Walzenoberfläche Druckspannungen in solcher Verteilung aufgeprägt, dass die Entstehung von Brandrissen weitestgehend vermieden wird. Aber auch in Fällen, bei denen abnormale Beanspruchungen der Walzenoberfläche, wie   z.     B."Steckenbleiber",   zu Brandrissen Rühren, werden diese infolge der durch das beschriebene Verfahren entstandenen Spannungverteilung so abgelenkt, dass sie sich nicht als Rundrisse oder achsparallele Risse ausweiten können. Da- durch wirkt sich der Erfindungsvorschlag zusätzlich auch auf die Lebensdauer der Walzen günstig aus. 



   In der Zeichnung ist die Erfindung veranschaulicht. Fig. l zeigt das Rändelrad zur Durchführung der erfindungsgemässen Rändelung von Walzen, Fig. 2 einen vergrösserten Ausschnitt aus der Oberfläche der mit dem Rändelrad nach Fig. l hergestellten Walze in Ansicht, Fig. 3 einen Querschnitt gemäss Fig. 2 in
Richtung A-A. 



   Das   Rändelrad   ist also hienach mit kleinen Pyramiden besetzt, deren Höhe kleiner als 0, 3 mm ist.



   <Desc / Clms Page number 1>
 



  Roller for rolling semi-finished or intermediate products made of steel or non-ferrous metals
 EMI1.1
 

 <Desc / Clms Page number 2>

 First, through these two consecutive treatments, the roller surface receives compressive stresses distributed in such a way that the development of fire cracks is largely avoided. But also in cases where abnormal stresses on the roll surface, such as B. "Stuck", stir to fire cracks, these are deflected as a result of the stress distribution created by the method described so that they cannot expand as round cracks or axially parallel cracks. As a result, the proposed invention also has a favorable effect on the service life of the rollers.



   The invention is illustrated in the drawing. FIG. 1 shows the knurled wheel for performing the knurling according to the invention on rolls, FIG. 2 shows an enlarged section of the surface of the roll manufactured with the knurled wheel according to FIG. 1, FIG. 3 shows a cross section according to FIG
Direction A-A.



   The knurled wheel is then occupied with small pyramids, the height of which is less than 0.3 mm.

 

Claims (1)

PATENTANSPRUCH : Walze zum Walzen von Halbzeug oder von Zwischenprodukten aus Stahl oder Nichteisenmetallen, mit Vertiefungen in Form von Pyramidenmustern zur Verhütung von Warmrissen an der Walzenoberfläche, die durch ein Rändelrad auf der Mantelfläche eingedrückt sind, dadurch gekennzeichnet, dass die Pyra- miden unmittelbar neben-und hintereinander im Verband angeordnet sind, eine Tiefe von weniger als 0, 3 mm aufweisen und im Grundriss, wie bekannt, rautenförmig sind und dass die eine Diagonale der Pyramidengrundfläche, die, wie bekannt, in Umlaufrichtung der Walze verläuft, mit den Kanten der Pyramidengrundfläche je einen Winkel von mehr als 15, jedoch weniger als 450 einschliesst. PATENT CLAIM: Roller for rolling semi-finished products or intermediate products made of steel or non-ferrous metals, with depressions in the form of pyramid patterns to prevent hot cracks on the roller surface, which are impressed by a knurled wheel on the outer surface, characterized in that the pyramids directly next to and behind one another are arranged in association, a depth of less than 0.3 mm and in plan, as is known, are diamond-shaped and that one diagonal of the Pyramid base, which, as known, runs in the direction of rotation of the roller, with the edges of the Pyramid base each includes an angle of more than 15, but less than 450.
AT416459A 1959-06-03 1959-06-03 Roller for rolling semi-finished or intermediate products made of steel or non-ferrous metals AT212250B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT416459A AT212250B (en) 1959-06-03 1959-06-03 Roller for rolling semi-finished or intermediate products made of steel or non-ferrous metals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT416459A AT212250B (en) 1959-06-03 1959-06-03 Roller for rolling semi-finished or intermediate products made of steel or non-ferrous metals
FR798589A FR1228694A (en) 1959-06-26 1959-06-26 Roller for rolling steel and non-ferrous metals

Publications (1)

Publication Number Publication Date
AT212250B true AT212250B (en) 1960-12-12

Family

ID=25600875

Family Applications (1)

Application Number Title Priority Date Filing Date
AT416459A AT212250B (en) 1959-06-03 1959-06-03 Roller for rolling semi-finished or intermediate products made of steel or non-ferrous metals

Country Status (1)

Country Link
AT (1) AT212250B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1287375B (en) * 1961-01-30 1969-01-16 Blaw Knox Co Electrode roller for metal strip treatment plants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1287375B (en) * 1961-01-30 1969-01-16 Blaw Knox Co Electrode roller for metal strip treatment plants

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