DE358925C - Process for reducing the cutting width in oxy-fuel cutting - Google Patents

Process for reducing the cutting width in oxy-fuel cutting

Info

Publication number
DE358925C
DE358925C DET25883D DET0025883D DE358925C DE 358925 C DE358925 C DE 358925C DE T25883 D DET25883 D DE T25883D DE T0025883 D DET0025883 D DE T0025883D DE 358925 C DE358925 C DE 358925C
Authority
DE
Germany
Prior art keywords
cutting
oxy
reducing
fuel
cut
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
DET25883D
Other languages
German (de)
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.)
WILFRIED THOR
Original Assignee
WILFRIED THOR
Publication date
Priority to DET25883D priority Critical patent/DE358925C/en
Application granted granted Critical
Publication of DE358925C publication Critical patent/DE358925C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/52—Nozzles for torches; for blow-pipes
    • F23D14/54—Nozzles for torches; for blow-pipes for cutting or welding metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Description

Verfahren zur Verringerung der Schnittbreite beim autogenen Schneiden. Beim autogenen Schneiden .nimmt bekanntlich die Schnittbreite mit der Dicke des zu schneidenden Stückes zu, da der Sauerstoffstrahl bei entsprechender Tiefenwirkung entsprechend länger an derselben Stelle wirken muß, so daß an den Wänden @bzw. Rändern des Schnittes immer noch Teilchen verbrennen, während der Sauerstoffstrahl eigentlich nur in den tieferen Teilen des Schnittes zur Wirkung kommen sollte.Process for reducing the cutting width in oxy-fuel cutting. With oxy-fuel cutting, it is well known that the cutting width increases with the thickness of the to be cut because the oxygen jet with a corresponding depth effect must act accordingly longer in the same place, so that @bzw. Margins the cut still burns particles, while the oxygen jet actually does should only take effect in the deeper parts of the cut.

Vorliegende Erfindung betrifft ein Verfahren, das die genannte Erscheinung verhindert und die Erzielung schmaler, äußerst gleichmäßiger Schnitte gewährleistet.The present invention relates to a method which has the aforesaid phenomenon prevents and ensures the achievement of narrow, extremely even cuts.

Zur Erreichung dieses Zweckes wird erfindungsgemäß beiderseits des Sauerstoffstrahles je ein Strahl neutralen Gases, beispielsweise Stickstoff, mit entsprechend geringerer Strömungsgeschwindigkeit als die des Sauerstoffes auf die Schnittränder geblasen.To achieve this purpose, according to the invention, both sides of the Oxygen jet each with a jet of neutral gas, for example nitrogen correspondingly lower flow velocity than that of the oxygen on the Blown cut edges.

In beiliegender Zeichnung ist schematisch die Wirkungsweise des Verfahrens vergrößert dargestellt.The method of operation of the process is schematically shown in the accompanying drawing shown enlarged.

Das Arbeitsstück E wird von dem Sauerstoffstrahl 0 getrennt, der aus der Düse o austritt. Zu beiden Seiten der letzteren befinden sich die Hilfsdüsen IV, N2, aus denen je ein schwächerer Strahl neutralen Gases mit entsprechend geringerer Geschwindigkeit austritt und unmittelbar auf die Schnittränder gerichtet ist. Der Sauerstoffstrahl wird infolge seiner höheren Geschwindibkeit hierdurch nicht aus seiner Bahn abgelenkt. Hingegen wirken die beiden Stickstoffstrahlen sofort nach Durchschneiden der obersten Eisenschicht kühlend auf die neugebildeten Schnittränder, so daß letztere keine weitere Verbrennung erfahren,-wenn der Sauerstoffstrahl in die tieferen Schichten vordringt. Andererseits wird infolge der Saugwirkung des Sauerstoffstrahles und infolge der Eigengeschwindigkeit der Stickstoffstrahlen eine Schicht von Stickstoff 'beiderseits des Sauerstoffstrahles mit in den Schnitt hineingerissen, so daß die Schnittwände vor weiterer' Berührung mit dem Sauerstoff geschützt sind, wodurch einer Verbreiterung :des Schnittes ebenfalls vorgebeugt wird.The work piece E is separated from the oxygen jet 0, which from the nozzle o emerges. The auxiliary nozzles are located on both sides of the latter IV, N2, from each of which a weaker stream of neutral gas with a correspondingly lower Speed emerges and is aimed directly at the cut edges. Of the Due to its higher speed, this does not stop the oxygen jet distracted from its path. In contrast, the two nitrogen jets continue to act immediately Cutting through the uppermost iron layer cooling on the newly formed cut edges, so that the latter experience no further combustion, -when the oxygen jet in penetrates the deeper layers. On the other hand, due to the suction effect of the Oxygen jet and due to the velocity of the nitrogen jets Layer of nitrogen on both sides of the oxygen jet torn into the cut, so that the cut walls are protected from further contact with the oxygen, whereby a broadening: of the cut is also prevented.

Claims (1)

PATENTANSPRUCH: Verfahren zur Verringerung der Schnittbreite beim autogenen Schneiden, dadurch gekennzeichnet, daß beiderseits des Sauerstoffstrahles je -ein Strahl neutralen Gases, beispielsweise Stickstoff, mit entsprechend geringerer Strömungsgeschwindigkeit als die des Sauerstoffstrahles auf die Schnittränder geblasen wird. Claim: A method for reducing the cutting width in oxy-fuel cutting, characterized in that on both sides of the oxygen jet a jet of neutral gas, for example nitrogen, is blown onto the edges of the cut at a correspondingly lower flow rate than that of the oxygen jet.
DET25883D Process for reducing the cutting width in oxy-fuel cutting Expired DE358925C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET25883D DE358925C (en) Process for reducing the cutting width in oxy-fuel cutting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET25883D DE358925C (en) Process for reducing the cutting width in oxy-fuel cutting

Publications (1)

Publication Number Publication Date
DE358925C true DE358925C (en) 1922-09-16

Family

ID=7552375

Family Applications (1)

Application Number Title Priority Date Filing Date
DET25883D Expired DE358925C (en) Process for reducing the cutting width in oxy-fuel cutting

Country Status (1)

Country Link
DE (1) DE358925C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3088854A (en) * 1960-11-08 1963-05-07 Air Reduction Methods and apparatus for cutting
EP0574311A1 (en) * 1992-06-12 1993-12-15 Creusot-Loire Industrie Method of making a metallic, workpieces by oxygen cutting, oxygen cutting device and obtained metallic workpiece

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3088854A (en) * 1960-11-08 1963-05-07 Air Reduction Methods and apparatus for cutting
EP0574311A1 (en) * 1992-06-12 1993-12-15 Creusot-Loire Industrie Method of making a metallic, workpieces by oxygen cutting, oxygen cutting device and obtained metallic workpiece
FR2692185A1 (en) * 1992-06-12 1993-12-17 Creusot Loire Process for manufacturing a metal part by oxycutting, oxycutting device and metal part obtained.
US5391237A (en) * 1992-06-12 1995-02-21 Creusot-Loire Industrie Method of manufacturing a metal workpiece by oxygen cutting, oxygen-cutting device and metal workpiece obtained

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