DE423094C - Welding and cutting processes for metals - Google Patents

Welding and cutting processes for metals

Info

Publication number
DE423094C
DE423094C DEC35513D DEC0035513D DE423094C DE 423094 C DE423094 C DE 423094C DE C35513 D DEC35513 D DE C35513D DE C0035513 D DEC0035513 D DE C0035513D DE 423094 C DE423094 C DE 423094C
Authority
DE
Germany
Prior art keywords
welding
metals
cutting processes
oxygen
burner
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
DEC35513D
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.)
CHEM FAB GRIESHEIM ELEKTRON FA
Original Assignee
CHEM FAB GRIESHEIM ELEKTRON FA
Publication date
Priority to DEC35513D priority Critical patent/DE423094C/en
Application granted granted Critical
Publication of DE423094C publication Critical patent/DE423094C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/34—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts
    • C10G9/36—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours
    • C10G9/38—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert preheated fluids, e.g. with molten metals or salts with heated gases or vapours produced by partial combustion of the material to be cracked or by combustion of another hydrocarbon
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Arc Welding In General (AREA)
  • Gas Burners (AREA)

Description

Schweiß- und Schneidverfahren für Metalle. Bei der Benutzung von Gasen für Verbrennungszwecke, insbesondere in Schweiß- und Schneidbrennern, spielt die Verbrennungsgeschwindigkeit eine wichtige Rolle. Da die letztere für manche Gase trotz ihres an sich hohen Heizwertes verhältnismäßig niedrig ist, waren diese Gase bisher von einer umfangreichen Nutzbarmachung ausgeschlossen. Man hat versucht, der Verbrennungsgeschwindigkeit durch Vorwärmen des Gases größere Werte zu verleihen, ohne daß es dadurch jedoch möglich gewesen wäre, sie auf die für Schweiß-und Schneidzwecke erforderliche Höhe zu bringen.Welding and cutting processes for metals. When using gases for combustion purposes, especially in welding and cutting torches, plays the Burn rate plays an important role. As the latter for some gases is relatively low despite their inherently high calorific value, these gases were previously excluded from extensive utilization. One tried to give the combustion rate higher values by preheating the gas, but without this it would have been possible to use them for welding and cutting purposes to bring the required height.

Die Erfindung zeigt einen Weg, der diesen Erfolg mit Sicherheit erreichen läßt. Er besteht darin, durch Anwendung eines sogenannten Krackungsverfahrens die Natur des Gases zu verändern. hierbei werden in höherer Temperatur die Kohlenwasserstoffe zum Teil zerspalten, wobei einerseits höhere Kohlenwasserstoffe bzw. Kahle sich bilden, anderseits Wasserstoff abgespalten wird. Zur Ausführung des Verfahrens nach der vorliegenden Erfindung wird das Brenngas vor der Mischung mit Sauerstoff oder Luft entweder durch eine äußere Flamme stark bis zur Spaltung der Kohlenwasserstoffe erwärmt (Abb. i), oder es wird dem Brenngas durch geeignete Dosierungsvorrichtungen eine begrenzte Menge Sauerstoff zugeführt, die erforderlich ist, um die Wärme für die Zerspaltung zu liefern (Abb. 2). Hierbei kann die Verbrennung selbst durch eine äußere Heizflamme unterstützt werden. Der Krackungsvorgang kann sowohl außerhalb des Brenners -als auch im Brenner selbst ausgeführt werden.The invention shows a way to achieve this success with certainty leaves. It consists in using what is known as a cracking process To change the nature of the gas. here the hydrocarbons are at a higher temperature partly split, whereby on the one hand higher hydrocarbons or kahle are form, on the other hand, hydrogen is split off. To carry out the procedure according to of the present invention, the fuel gas is prior to being mixed with oxygen or Air is either strong by an external flame until the hydrocarbons are split heated (Fig. i), or it is added to the fuel gas by suitable metering devices a limited amount of oxygen is supplied that is required to generate heat to deliver the cleavage (Fig. 2). The combustion itself can be carried out by a external heating flame are supported. The cracking process can both outside of the burner as well as in the burner itself.

Claims (3)

PATEN T-ANSPRÜC$E: i. Schweiß- und Schneidverfahren für Metalle, dadurch gekennzeichnet, daß als Brennstoff schwer verbrennliche Kohlenwasserstoffe benutzt werden, die vor der Mischung mit Sauerstoff einem Krackungsvorgange unterworfen werden. PATENT T-CLAIM: i. Welding and cutting processes for metals, characterized in that the fuel used is hydrocarbons which are difficult to burn and which are subjected to a cracking process before being mixed with oxygen. 2. Abänderung des Verfahrens, dadurch gekennzeichnet, daß die Krackung im Brenner lediglich durch äußere Beheizung ausgeführt wird. 2. Modification of the method, characterized in that the cracking in Burner is carried out only by external heating. 3. Abänderung des Verfahrens gemäß Anspruch i, dadurch gekennzeichnet, daß der Krackungsvorgang im Brenner unter Zusatz einer abgemessenen Menge Sauerstoff unter Herbeiführung einer teilweisen inneren Verbrennung erfolgt, wobei die Verbrennung durch eine äußere Flamme unterstützt werden kann. 3. Modification of the method according to claim i, characterized in that the cracking process takes place in the burner with the addition of a measured amount of oxygen to bring about a partial internal combustion, wherein the combustion can be supported by an external flame.
DEC35513D Welding and cutting processes for metals Expired DE423094C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC35513D DE423094C (en) Welding and cutting processes for metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC35513D DE423094C (en) Welding and cutting processes for metals

Publications (1)

Publication Number Publication Date
DE423094C true DE423094C (en) 1925-12-21

Family

ID=7021843

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC35513D Expired DE423094C (en) Welding and cutting processes for metals

Country Status (1)

Country Link
DE (1) DE423094C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698655A1 (en) * 1993-04-22 1996-02-28 Yugen Kaisha Libo Method and apparatus for generating fuel gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698655A1 (en) * 1993-04-22 1996-02-28 Yugen Kaisha Libo Method and apparatus for generating fuel gas
EP0698655A4 (en) * 1993-04-22 1996-05-29 Yugen Kaisha Libo Method and apparatus for generating fuel gas
US5707408A (en) * 1993-04-22 1998-01-13 Yugen Kaisha Libo Method and apparatus for production of fuel gas

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