DE943103C - Process for pressing materials that are difficult to deform plastically - Google Patents

Process for pressing materials that are difficult to deform plastically

Info

Publication number
DE943103C
DE943103C DES8833D DES0008833D DE943103C DE 943103 C DE943103 C DE 943103C DE S8833 D DES8833 D DE S8833D DE S0008833 D DES0008833 D DE S0008833D DE 943103 C DE943103 C DE 943103C
Authority
DE
Germany
Prior art keywords
difficult
deform plastically
pressing materials
pressure surges
materials
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
DES8833D
Other languages
German (de)
Inventor
Dipl-Ing Arnold Loeschmann
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.)
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Priority to DES8833D priority Critical patent/DE943103C/en
Application granted granted Critical
Publication of DE943103C publication Critical patent/DE943103C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/22—Making metal-coated products; Making products from two or more metals
    • B21C23/24—Covering indefinite lengths of metal or non-metal material with a metal coating
    • B21C23/26—Applying metal coats to cables, e.g. to insulated electric cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)

Description

Verfahren zum Verpressen von plastisch schwer verformbaren Werkstoffen Der Erfindung liegt die Aufgabe zugrunde, den Druckaufwand beim Verpressen von plastisch schwer verformbaren =Werkstoffen, worunter auch Metalle verstanden werden sollen, wie z. B. Aluminium, das in neuerer Zeit zur Herstellung von Kabelmänteln verwendet wird, herabzusetzen. Es ist bereits bekanntgeworden, @d.i,eVerformungm-etatlischer Gegenstände durch Anwendung von Schwingungen zu erleichtern. Ein älterer Vorschlag sieht auch vor, beim bildsamen Verformen, z. B. Pressen oder Stanzen eines Werkstückes mittels eines gegen das Werkstück gedrückten Werkzeuges, die Verformung unter das Stoffgefüge erfassenden Vibrationen durchzuführen, die in das die Verformung bewirkende Werkstück zusätzlich zu der wie üblich ausgeübten Verformungskraft eingeleitet werden.Process for pressing materials that are difficult to deform plastically The invention is based on the object of reducing the pressure required when compressing plastic difficult to deform = materials, including metals, such as B. Aluminum, which has recently been used to manufacture cable sheaths will reduce. It has already become known, @ d.i, eVerformungm-etatlischer To lighten objects by applying vibrations. An older suggestion also provides for plastic deformation, z. B. pressing or punching a workpiece by means of a tool pressed against the workpiece, the deformation below the To carry out vibrations that capture the structure of the material, which result in the deformation Workpiece can be introduced in addition to the deformation force exerted as usual.

Im Gegensatz dazu erfolgt bei der Herstellung von Formsträngen, wie Rohren und insbesondere Kabelmänteln aus plastisch schwer verformbarem Werkstoff, wie Aluminium, auf Strangpressen das Auspressen gemäß der Erfindung unter einer dauernden Folge schneller, kurzer Druckstöße als ausschließlicher Verformungskraft.In contrast, in the production of molded strands, such as Pipes and especially cable sheaths made of material that is difficult to deform plastically, such as aluminum, on extrusion the extrusion according to the invention under one continuous sequence of faster, short pressure surges as the sole deformation force.

Die Erzeugung dieser Druckstöße kann auf verschiedene Weise erfolgen. Beispielsweise ist es möglich, zur Erzeugung des Druckes in dem Pressenzylinder eine stoßweise arbeitende Kolbenpumpe zu verwenden: Unter Umständen ist es auch möglich, den Windkessel einer üblichen hydraulischen Druckmittelanlage zu verkleinern oder gänzlich wegzulassen, wodurch rhythmische Preßstöße hervorgerufen werden.These pressure surges can be generated in various ways. For example, it is possible to generate the pressure in the press cylinder an intermittent piston pump to use: possibly it is also possible to use the air chamber of a conventional hydraulic pressure medium system to be reduced in size or to be omitted entirely, thereby causing rhythmic pressure shocks will.

Durch. die Erfindung wird erreicht, daß der Druckbedarf für das Verpressen des Werkstoffes beträchtlich gesenkt werden kann.By. the invention is achieved that the pressure requirement for pressing the material can be reduced considerably.

Claims (2)

PATENTANSPRÜCHE: I. Verfahren zur Herstellung von Formsträngen, wie Rohren und insbesondere Kabelmänteln, aus plastisch schwer verformbaren Werkstoffen, wie z. B. Aluminium, auf Strangpressen, dadurch gekennzeichnet, daß das Auspressen unter einer dauernden Folge schneller, kurzer Druckstöße als alleiniger Verformungskraft erfolgt. PATENT CLAIMS: I. Process for the production of molded strands, such as Pipes and especially cable sheaths, made of materials that are difficult to deform plastically, such as B. aluminum, on extrusion, characterized in that the pressing under a continuous sequence of quick, short pressure surges as the sole deformation force he follows. 2. Verfahren nach Anspruch I; dadurch gekennzeichnet, daß die Druckstöße durch eine Kolbenpumpe erzeugt werden. Angezogene Druckschriften: Deutsche Patentschriften Nr. 729 429, 914 576; Zeitschrift »Metallwirtschaft« Nr. 8, 1930, S. 173 bis 176; »Zeitschrift für Metallkunde«, 29. Jahrg., Heft :2 vom Februar I9372. The method according to claim I; characterized in that the pressure surges are generated by a piston pump. Cited pamphlets: German Patent Nos. 729 429, 914 576; "Metallwirtschaft" magazine No. 8, 1930, pp. 173 to 176; "Zeitschrift für Metallkunde", 29th year, issue: 2 from February 1937
DES8833D 1943-10-29 1943-10-29 Process for pressing materials that are difficult to deform plastically Expired DE943103C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES8833D DE943103C (en) 1943-10-29 1943-10-29 Process for pressing materials that are difficult to deform plastically

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES8833D DE943103C (en) 1943-10-29 1943-10-29 Process for pressing materials that are difficult to deform plastically

Publications (1)

Publication Number Publication Date
DE943103C true DE943103C (en) 1956-05-09

Family

ID=7472854

Family Applications (1)

Application Number Title Priority Date Filing Date
DES8833D Expired DE943103C (en) 1943-10-29 1943-10-29 Process for pressing materials that are difficult to deform plastically

Country Status (1)

Country Link
DE (1) DE943103C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE729429C (en) * 1941-03-11 1942-12-16 Messerschmitt A G Stretch drawing process for sheet metal
DE914576C (en) * 1943-03-10 1954-07-05 Trignitron Ab Methods of plastic deformation, e.g. Pressing or punching, a workpiece and device for this

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE729429C (en) * 1941-03-11 1942-12-16 Messerschmitt A G Stretch drawing process for sheet metal
DE914576C (en) * 1943-03-10 1954-07-05 Trignitron Ab Methods of plastic deformation, e.g. Pressing or punching, a workpiece and device for this

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