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 metalsInfo
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/005—Rolls with a roughened or textured surface; Methods for making same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2267/00—Roll parameters
- B21B2267/10—Roughness 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)
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)
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 |
-
1959
- 1959-06-03 AT AT416459A patent/AT212250B/en active
Cited By (1)
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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