DE963953C - Rolling pass when rolling blocks - Google Patents

Rolling pass when rolling blocks

Info

Publication number
DE963953C
DE963953C DEST3561A DEST003561A DE963953C DE 963953 C DE963953 C DE 963953C DE ST3561 A DEST3561 A DE ST3561A DE ST003561 A DEST003561 A DE ST003561A DE 963953 C DE963953 C DE 963953C
Authority
DE
Germany
Prior art keywords
rolling
pass
blocks
transverse grooves
transverse
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
DEST3561A
Other languages
German (de)
Inventor
Dipl-Ing Dr Techn Wilhel Stich
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.)
Bochumer Verein fuer Gussstahlfabrikation AG
Original Assignee
Bochumer Verein fuer Gussstahlfabrikation 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 Bochumer Verein fuer Gussstahlfabrikation AG filed Critical Bochumer Verein fuer Gussstahlfabrikation AG
Priority to DEST3561A priority Critical patent/DE963953C/en
Application granted granted Critical
Publication of DE963953C publication Critical patent/DE963953C/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Description

Walzkaliber beim Walzen von Blöcken Es ist bekannt, das Greifvermögen des Walzkalibers für das Walzen von Blöcken zu vergrößern, und zwar durch Anbringung von in der Regel weiter voneinander entfernten, größeren kerbenartigen Vertiefungen (z. B. in Form eines Behaues), verschieden geformten Erhöhungen (z. B. in Form von Aufschweißungen) oder Querrippen an seiner Oberfläche. Es hat sich aber gezeigt, daß diese Art der Oberflächenausbildung des Walzkalibers den ständig steigenden Ansprüchen an die Güte der Walzstabloberfläche nicht mehr gewachsen ist. Auch sind Walzen mit durch ein im Abwälzvorgang schneidendes, tangential an der Mantelfläche angreifendes Werkzeug hergestellten Querrillen bekannt, die die Walzstäbe mit quer verlaufenden Rippen versehen. Solche Walzstäbe werden in-sbesondere als Betonstahl verwendet. In diesem Fall verbleiben die Rippen auf der Staboberfläche. Das durch die Walzen gebildete Kaliber wird über seine ganze Breite oder nur teilweise -durch einen Fräser so angeschnitten, daß die Walze als »Zahnrad« und der stillgesetzte Fräser als die zugehörige »Zahnstange« wirken. Die Fräserachse steht hierbei parallel zur Walzrichtung und senkrecht zur Walzachse. Bei solchen bekannten Walzen erfolgt das Eindrücken der OOuerrillen in den Walzstab auf eine besonders schonende Weise. Auch lösen sich die Querrippen des zur »Zahnstange« gewordenen Walzstabes leicht aus den Zahnlücken.Rolling pass when rolling ingots It is known that the gripping ability of the rolling caliber for the rolling of billets by attaching them of larger, notch-like depressions that are usually further apart (e.g. in the form of a Behau), differently shaped elevations (e.g. in the form of Welds) or transverse ribs on its surface. But it has been shown that this type of surface formation of the rolling pass the ever increasing The demands on the quality of the rolled bar surface can no longer be met. Also are Rolling with a cutting in the rolling process, tangentially on the outer surface attacking tool produced transverse grooves known that the roll bars with transverse running ribs. Such rolled bars are used in particular as reinforcing steel used. In this case the ribs remain on the rod surface. That through the caliber formed by the rolls is over its entire width or only partially through cut a milling cutter so that the roller acts as a "gearwheel" and the one that has stopped Milling cutters act as the corresponding »rack«. The cutter axis is parallel here to the rolling direction and perpendicular to the rolling axis. In such known rollers takes place the pressing of the outer grooves into the roller bar in a particularly gentle way. The transverse ribs of the rod that has become a "rack" also loosen easily from the tooth gaps.

Erfindungsgemäß werden nun derartig hergestellte `'Falzen mit gesteigertem Greifvermögen beim Walzen von Blöcken angewandt. Diese Walen sollen nuerrillen aufweisen, die weniger als i mm tief sind und dicht nebeneinanderliegen. Diese Walzen - es dürfen in diesem Falle keine Rippen oder deren Spuren am Walzstab verbleiben -verursachen einerseits keinerlei Schädigung der Walzstaboberfläche und genügen somit den heutigen Ansprüchen an deren Güte. Andererseits gewährleisten sie eine ausreichende »Standzeit« der einzelnen am Walzkaliber angebrachten Erhöhungen oder Vertiefungen (Querrillen). Es wurde hierbei erfindungsgemäß die Erkenntnis ausgenutzt, daß selbst sehr geringe im Walzkaliber quer zur Walzrichtung angebrachte Vertiefungen oder Erhöhungen ein für sich gutes Eingriffsvermögen und eine ausreichende Haltbarkeit besitzen, wenn sie durch einen Abwälzvorgang im Sinne der Verzahnungslehre entstanden sind. Die »Walzenzähne« bzw. Querrillen können dabei so dicht aufeinanderfolgen, daß trotz ihrer geringen Höhe und eben wegen ihrer kleinen Abstände, und zwar auf Grund der größeren Kontinuität des Eingriffes (solcher Rillen), sich ein gesteigertes Greifvermögen der Walze einstellt. Dabei lassen sich die am Walzstab selbst entstandenen Querrippen infolge ihrer geringen Höhe bzw. Tiefe anschließend leicht ausgleichen, ohne daß an der späteren Walzstabfertigoberfläche irgendwelche Eindrücke sichtbar werden.According to the invention, folds produced in this way are now made with increased Gripping ability applied when rolling blocks. These whales should have zero grooves that are less than 1 mm deep and are close to one another. These rolls - in this case there must be no ribs or their marks on the roll bar remain - cause on the one hand no damage to the roll bar surface and thus meet today's demands on their quality. On the other hand, ensure a sufficient "service life" of the individual elevations attached to the rolling pass or depressions (transverse grooves). According to the invention, this was the finding exploited the fact that even very small ones in the rolling pass applied transversely to the rolling direction Depressions or elevations have a good gripping ability and a sufficient one Have durability if they are generated by a rolling process in the sense of gear theory have arisen. The "roller teeth" or transverse grooves can follow one another so closely that that in spite of their low height and precisely because of their small distances, namely on Due to the greater continuity of the engagement (such grooves), an increased Adjusts the grip of the roller. This can be done on the rolling rod itself Then slightly compensate for transverse ribs due to their low height or depth, without any impressions being visible on the subsequent finished surface of the roll bar will.

Claims (1)

PATENTANSPRUCH:. Die Verwendung von an sich bekannten Walzen mit Querrillen, welche durch ein im Abwälzvorgang schneidendes, tangential an der Mantelfläche angreifendes Werkzeug erzeugt sind, als Walzen in Blockwalzwerken zur Steigerung des Greifvermögens, wobei diese Querrillen weniger als i mm tief sind und dicht nebeneinanderliegen. In Betracht gezogene Druckschriften: Schweizerische Patentschrift Nr. 273 474; USA.-Patentschrift Nr. 2 428 301 ; deutsche Patentschrift Nr. 143 074; Zeitschrift »Archiv für das Eisenhüttenwesen«, Juni 1933, Heft r-2, S. 54i.PATENT CLAIM :. The use of known rolls with transverse grooves, which is caused by a cutting in the rolling process, engaging tangentially on the outer surface Tools are produced as rollers in block rolling mills to increase the gripping ability, these transverse grooves are less than 1 mm deep and are close to one another. Documents considered: Swiss Patent No. 273 474; U.S. Patent No. 2,428,301; German Patent No. 143 074; Journal »Archive for the Eisenhüttenwesen ", June 1933, Heft r-2, p. 54i.
DEST3561A 1951-06-29 1951-06-29 Rolling pass when rolling blocks Expired DE963953C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEST3561A DE963953C (en) 1951-06-29 1951-06-29 Rolling pass when rolling blocks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST3561A DE963953C (en) 1951-06-29 1951-06-29 Rolling pass when rolling blocks

Publications (1)

Publication Number Publication Date
DE963953C true DE963953C (en) 1957-05-16

Family

ID=7453239

Family Applications (1)

Application Number Title Priority Date Filing Date
DEST3561A Expired DE963953C (en) 1951-06-29 1951-06-29 Rolling pass when rolling blocks

Country Status (1)

Country Link
DE (1) DE963953C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151480B (en) * 1958-12-29 1963-07-18 Inter Continentaler Huettenbau Process for rolling hot strip

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE143074C (en) *
US2428301A (en) * 1944-05-24 1947-09-30 Inland Steel Co Method of producing forming rolls for use in rolling mills and the like
CH273474A (en) * 1949-01-31 1951-02-15 Inland Steel Co Machine for processing the outer surface of rolls to be used in rolling mills by means of a cutting tool.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE143074C (en) *
US2428301A (en) * 1944-05-24 1947-09-30 Inland Steel Co Method of producing forming rolls for use in rolling mills and the like
CH273474A (en) * 1949-01-31 1951-02-15 Inland Steel Co Machine for processing the outer surface of rolls to be used in rolling mills by means of a cutting tool.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151480B (en) * 1958-12-29 1963-07-18 Inter Continentaler Huettenbau Process for rolling hot strip

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