DE955019C - Rolling mill for rolling powder - Google Patents

Rolling mill for rolling powder

Info

Publication number
DE955019C
DE955019C DEF13989A DEF0013989A DE955019C DE 955019 C DE955019 C DE 955019C DE F13989 A DEF13989 A DE F13989A DE F0013989 A DEF0013989 A DE F0013989A DE 955019 C DE955019 C DE 955019C
Authority
DE
Germany
Prior art keywords
rolling
powder
roll
section
mill
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
DEF13989A
Other languages
German (de)
Inventor
Dr Hermann Franssen
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.)
HERMANN FRANSSEN DR
Original Assignee
HERMANN FRANSSEN DR
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 HERMANN FRANSSEN DR filed Critical HERMANN FRANSSEN DR
Priority to DEF13989A priority Critical patent/DE955019C/en
Application granted granted Critical
Publication of DE955019C publication Critical patent/DE955019C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Description

Die Erfindung bezieht sich auf ein Walzwerk zum Walzen vom Pulver, insbesondere Metallpulver.The invention relates to a rolling mill for rolling powder, especially metal powder.

Es ist bei. derartigen Walzwerken bekannt, eine Beschickungsvorrichtung vorzusehen, die mit ihren Seitenwänden in Ringnuten der Walzen eingreifend durch den Kaliberspalt hindurchragt, um eine Seitenbegrenzung des Walzerzeugnisses zu bewirken. Es ist auch bekannt, eine solche Seitenbegrenzung dadurch herbeizuführen, daß die eine der beiden Walzea außerhalb des Bereiches des Walzquerschnittes Ringnuten und die andere entsprechende Ringstege, die in die Nuten eingreifen, erhalten.It is at. Known such rolling mills, a charging device to be provided that engages with their side walls in the annular grooves of the rollers the caliber gap protrudes to a side boundary of the rolled product cause. It is also known to bring about such a page limitation by that one of the two Walzea outside the area of the rolling cross-section annular grooves and the other corresponding ring lands that engage in the grooves received.

Insbesondere bei der erstgenannten Art ist ein Reiben -oder Schleifen des den Spalt duechwandernden Pulvers an den Seitenwänden nicht zu vermeiden, wodurch die Bildung von gleichmäßigen, glatten Rändern des formierten Bandes behindert wird.Rubbing or grinding is particularly important in the first-mentioned type of the powder on the side walls that wander the gap cannot be avoided, whereby the formation of uniform, smooth edges of the formed band is hindered.

Diesen Übelstand zu beseitigen, ist der Zweck der Erfindung. Diese besticht darin, daß iah Bereich des Walzquerschnittes wenigstens auf einer Walze Ringnuten mit keilförmigem Querschnitt angeordnet sind. Diese keilförmigen Ringnutten verursachen bei der Fannierung des Bandes einen in gerader Linie verlaufenden Dichtespruag, der ein glattes Abbrechen. der schmalen Randstreifen auf beiden Seiten bewirkt.The aim of the invention is to remedy this drawback. These impresses in the fact that the area of the roll cross-section is at least on one roll Annular grooves are arranged with a wedge-shaped cross section. These wedge-shaped ring grooves cause a straight line density jump when the tape is fanned, the one smooth breaking off. the narrow marginal strips on both sides.

Ein der Erfindung ist in der Abbildung dargestellt. Die beiden Walzen Wu und Wo sind in bekannter Weise in einem. üblichen Walzgerüst gelagert. Eine Pulveraufgabevorrichtung greift mit den Seitenwänden a in die Ringnuten e der beiden Walzen ein. In gewissen Abstand von diesen Rmgnuten iah Bereich des Walzquerschnittes sind die weiteren keilförmigen Ringnuten f * angeordnet. Bei: der Formierung des Bandes H wird durch diese Ringnuten f eine Bruchlinie erzeugt .infolge eines 1)schtesprunges iah Material, wodurch eine Art Besäumen des Bandes bewirkt wird.One of the invention is shown in the picture. The two rollers Wu and Wo are in a known way in one. usual roll stand stored. A powder feeder engages with the side walls a in the annular grooves e of the two rollers. The further wedge-shaped annular grooves f * are arranged at a certain distance from these grooves in the area of the roll cross-section. During: the formation of the band H , a break line is created by these annular grooves f as a result of a 1) sharp crack in the material, which causes a kind of trimming of the band.

Zum Sauberhalten der Rillen können Bürsten oder andere derartige Mittel, die mittels einer Feder angedrückt werden können, angebracht werden.To keep the grooves clean, brushes or other such means, which can be pressed on by means of a spring.

Claims (1)

PATENTANSPRUCH: Walzwerk zum Walzen von Pulver, insbesondere Metallpulver, bei dem eine Walze nahe jeder Stirnseite eine Ringnut aufweist, dadurch gekennzeichnet, daß die Ringnutten wenigstens einer Walze im Bereich des Walzquerschnittes angeordnet sind und keilförmigen Querschnittt haben. In Betracht gezogene Druckschriften: USA.-Patentschrift Nr. 2 222 25I.Claim: Rolling mill for rolling powder, in particular metal powder, in which a roll has an annular groove near each end face, characterized in that the annular grooves of at least one roll are arranged in the area of the roll cross-section and have a wedge-shaped cross-section. Contemplated publications: USA. Patent No. 2 222 25I..
DEF13989A 1954-02-21 1954-02-21 Rolling mill for rolling powder Expired DE955019C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF13989A DE955019C (en) 1954-02-21 1954-02-21 Rolling mill for rolling powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF13989A DE955019C (en) 1954-02-21 1954-02-21 Rolling mill for rolling powder

Publications (1)

Publication Number Publication Date
DE955019C true DE955019C (en) 1956-12-27

Family

ID=7087460

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF13989A Expired DE955019C (en) 1954-02-21 1954-02-21 Rolling mill for rolling powder

Country Status (1)

Country Link
DE (1) DE955019C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222000B (en) * 1959-12-02 1966-07-28 Corn Products Co Process and device for the production of a dust-free flake starch by compression
DE2605099A1 (en) * 1975-02-27 1976-09-02 Freunt Ind Co Ltd POWDER COMPACTION MACHINE

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2222251A (en) * 1938-03-04 1940-11-19 Chrysler Corp Method of making porous metal structures and bearings

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2222251A (en) * 1938-03-04 1940-11-19 Chrysler Corp Method of making porous metal structures and bearings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222000B (en) * 1959-12-02 1966-07-28 Corn Products Co Process and device for the production of a dust-free flake starch by compression
DE2605099A1 (en) * 1975-02-27 1976-09-02 Freunt Ind Co Ltd POWDER COMPACTION MACHINE

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