DE1246930B - Fuel gas mixture for heating, melting, welding and cutting metals - Google Patents

Fuel gas mixture for heating, melting, welding and cutting metals

Info

Publication number
DE1246930B
DE1246930B DEM73062A DEM0073062A DE1246930B DE 1246930 B DE1246930 B DE 1246930B DE M73062 A DEM73062 A DE M73062A DE M0073062 A DEM0073062 A DE M0073062A DE 1246930 B DE1246930 B DE 1246930B
Authority
DE
Germany
Prior art keywords
fuel gas
gas mixture
melting
welding
heating
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.)
Pending
Application number
DEM73062A
Other languages
German (de)
Inventor
Dipl-Ing Dr Hans Weiler
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.)
Messer Griesheim GmbH
Original Assignee
Messer Griesheim GmbH
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 Messer Griesheim GmbH filed Critical Messer Griesheim GmbH
Priority to DEM73062A priority Critical patent/DE1246930B/en
Publication of DE1246930B publication Critical patent/DE1246930B/en
Priority to AT68887A priority patent/AT280459B/en
Priority to ES350136A priority patent/ES350136A1/en
Priority to GB605068A priority patent/GB1167440A/en
Priority to BE710677D priority patent/BE710677A/xx
Priority to NL6802025A priority patent/NL6802025A/xx
Priority to SE186368A priority patent/SE325366B/xx
Priority to FR1604785D priority patent/FR1604785A/fr
Priority to CH316568A priority patent/CH485836A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS 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
    • C10L3/00Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas

Description

Brenngasgemisch zum Erhitzen, Schmelzen, Schweißen und Schneiden von Metallen Die Erfindung bezieht sich auf ein Brenngasgemisch zum Erhitzen, Schmelzen, Schweißen und Schneiden von Metallen, das durch Druckerhöhung bei Umgebungstemperatur verflüssigbar ist, auch unter seinem Dampfdruck bei Umgebungstemperatur sicher gelagert werden kann und bei dem bei flüssiger Lagerung und gasförmiger Entnahme keine wesentlichen Entmischungen auftreten.Fuel gas mixture for heating, melting, welding and cutting of Metals The invention relates to a fuel gas mixture for heating, melting, Welding and cutting of metals by increasing the pressure at ambient temperature is liquefiable, stored safely even under its vapor pressure at ambient temperature can be and in the case of liquid storage and gaseous withdrawal no essential Segregation occurs.

Durch die USA.-Patentschrift 3 226 213 ist ein Brenngasgemisch bekannt bestehend aus C.- und C4-Kohlenwasserstoffen, wobei diese Kohlenwasserstoffe in folgenden Molprozenten gemischt sein können: C.-Kohlenwasserstoffe Methylacetylen .............. 48 bis 75 Propadien .................. f Propan ..................... 11 bis 38 Propylen ................... C4-Kohlenwasserstoffe n-Butan .................... i-Butan .................... 1-Buten .................... 2 bis 14 i-Buten .................... 1,3 Butadien .................. Diese bekannten Brenngasgemische ergeben eine relativ hohe Flammentemperatur und sind für die beschriebenen Anwendungen brauchbar. Es hat sich aber gezeigt, daß die Leistungen derartiger C.-. C4-Kohlenwasserstoffgemische noch wesentlich gesteigert werden können, wenn zur Stabilisierung des Methylacetylens und Propadiens in vorwiegendem Maß C4-Kohlenwasserstoffe benutzt werden.By USA. Patent 3,226,213 is a known combustible gas mixture consisting of C.- and C4 hydrocarbons, these hydrocarbons can be mixed in the following molar percentages: C. Hydrocarbons Methylacetylene .............. 48 to 75 Propadien .................. f Propane ..................... 11 to 38 Propylene ................... C4 hydrocarbons n-butane .................... i-butane .................... 1-butene .................... 2 to 14 i-butene .................... 1.3 butadiene .................. These known fuel gas mixtures result in a relatively high flame temperature and can be used for the applications described. However, it has been shown that the services of such C.-. C4 hydrocarbon mixtures can still be increased significantly if predominantly C4 hydrocarbons are used to stabilize the methyl acetylene and propadiene.

Gemäß der Erfindung wird ein Brenngasgemisch vorgeschlagen, das, unter Druck bei Umgebungstemperatur verflüssigt, jeweils einzeln oder in Mischung 76 bis 88 Molprozent Methylacetylen und Propadien, 15 bis 24 Molprozent aus der Gruppe Normalbutan, Isobutan, 1-Buten, 2-Buten, Isobuten und 1,3 Butadien sowie 1 bis 10 Molprozent aus der Gruppe Propan, Propylen und Cyclopropan enthält. Durch die Verwendung der C4-Kohlenwasserstoffe als primärer Stabilisator des Methylacetylens und Propadiens kann deren Anteil am Brenngasgemisch wesentlich gesteigert werden.According to the invention, a fuel gas mixture is proposed which, liquefied under pressure at ambient temperature, individually or in a mixture 76 to 88 mol percent methylacetylene and propadiene, 15 to 24 mol percent from the group normal butane, isobutane, 1-butene, 2-butene, isobutene and 1.3 butadiene and 1 to 10 mol percent from the group consisting of propane, propylene and cyclopropane. By using the C4 hydrocarbons as the primary stabilizer of methyl acetylene and propadiene, their proportion in the fuel gas mixture can be increased significantly.

Durch diese erfindungsgemäße Art der Stabilisierung des Methylacetylens oder Propadiens oder beider in verschiedenem Gemisch zusammen entsteht der weitere Vorteil, daß sich bei gasförmiger Entnahme aus dem unter Druck verflüssigten erfindungsgemäßen Brenngasgemisch die abnehmende Flüssigkeitsmenge bis zum verschwindenden letzten Rest in ihrer Konzentration nicht ungünstig verändert. Bei der Stabilisierung des Gemisches nach der USA.-Patentschrift 3 226 213 werden primär Propan und Propylen als Stabilisatoren verwendet. Hierbei erhöht sich die Konzentration des Methylacetylens und Propadiens, wenn aus der Flasche gasförmig entnommen wird. Gemäß dieser Patentschrift darf daher nur 95 1/o der Flaschenfüllung verbraucht werden, um eine gefährliche Aufkonzentrierung zu vermeiden. Bei der erfindungsgemäßen Stabilisierung tritt dagegen höchstens eine Verringerung der Methylacetylen-Propadien-Konzentration ein, was ungefährlich ist. Diese Verringerung wird aber nicht so erheblich, daß die Flammentemperatur wesentlich geringer wird. Durch die erfindungsgemäß hohe Anfangskonzentration des Methylacetylens und Propadiens wird die Flammentemperatur im Gegenteil höher sein als die des Gemisches nach dem Stand der Technik.This inventive method of stabilizing methylacetylene or propadiene or both in different mixtures together results in the further advantage that when gaseous withdrawal from the fuel gas mixture according to the invention liquefied under pressure, the concentration of the decreasing liquid until the last residue disappears is not unfavorably changed. In the stabilization of the mixture after the USA. Patent 3,226,213 propane and propylene are used as stabilizers primary. This increases the concentration of methyl acetylene and propadiene when gas is withdrawn from the bottle. According to this patent specification, therefore, only 95 1 / o of the bottle filling may be used in order to avoid dangerous concentration. In the stabilization according to the invention, on the other hand, there is at most a reduction in the methylacetylene propadiene concentration, which is harmless. However, this reduction is not so significant that the flame temperature is significantly lower. On the contrary, due to the high initial concentration of methyl acetylene and propadiene according to the invention, the flame temperature will be higher than that of the mixture according to the prior art.

Die Erfindung ergibt somit höhere Flammentemperaturen, verringert eine etwaige Explosionsgefahr des Gemisches und erlaubt die ungefährliche Ausnutzung des gesamten Flascheninhaltes.The invention thus results in higher flame temperatures, reduced a possible explosion hazard of the mixture and allows the harmless exploitation of the entire contents of the bottle.

Der Anteil des Methylacetylen-Propadien-Anteils beträgt vorzugsweise 76 bis 85 Molprozent.The proportion of the methylacetylene-propadiene component is preferably 76 to 85 mol percent.

Claims (1)

Patentansprach: Brenngasgemisch zum Erhitzen, Schmelzen, Schweißen und Schneiden von Metallen, bestehend aus einem Gemisch von C3- und C4-Kohlenwasserstoffen, gekennzeichnet durch 76 bis 88Molprozent Methylacetylen und/oder Propadien, 15 bis 24Molprozent aus der Gruppe Normalbutan, Isobutan, 1-Buten, 2-Buten, Isobuten und 1,3 Butadien sowie 1 bis 10 Molprozent aus der Gruppe Propan, Propylen und Cyclopropan, jeweils einzeln oder in Mischung.Claim: Fuel gas mixture for heating, melting, welding and cutting metals, consisting of a mixture of C3 and C4 hydrocarbons, characterized by 76 to 88 mol percent methyl acetylene and / or propadiene, 15 to 24 mol percent from the group normal butane, isobutane, 1-butene , 2-butene, isobutene and 1,3 butadiene and 1 to 10 mol percent from the group consisting of propane, propylene and cyclopropane, in each case individually or as a mixture.
DEM73062A 1967-03-07 1967-03-07 Fuel gas mixture for heating, melting, welding and cutting metals Pending DE1246930B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DEM73062A DE1246930B (en) 1967-03-07 1967-03-07 Fuel gas mixture for heating, melting, welding and cutting metals
AT68887A AT280459B (en) 1967-03-07 1968-01-29 FUEL GAS MIXTURE FOR WELDING, CUTTING ETC. OF METALS
ES350136A ES350136A1 (en) 1967-03-07 1968-02-03 Fuel Gas Mixture
GB605068A GB1167440A (en) 1967-03-07 1968-02-07 Fuel Gas Mixture
BE710677D BE710677A (en) 1967-03-07 1968-02-13
NL6802025A NL6802025A (en) 1967-03-07 1968-02-13
SE186368A SE325366B (en) 1967-03-07 1968-02-13
FR1604785D FR1604785A (en) 1967-03-07 1968-02-14
CH316568A CH485836A (en) 1967-03-07 1968-03-04 Fuel gas mixture of C3 and C4 hydrocarbons for welding, cutting and melting as well as for heat treatment of metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM73062A DE1246930B (en) 1967-03-07 1967-03-07 Fuel gas mixture for heating, melting, welding and cutting metals

Publications (1)

Publication Number Publication Date
DE1246930B true DE1246930B (en) 1967-08-10

Family

ID=7314813

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM73062A Pending DE1246930B (en) 1967-03-07 1967-03-07 Fuel gas mixture for heating, melting, welding and cutting metals

Country Status (9)

Country Link
AT (1) AT280459B (en)
BE (1) BE710677A (en)
CH (1) CH485836A (en)
DE (1) DE1246930B (en)
ES (1) ES350136A1 (en)
FR (1) FR1604785A (en)
GB (1) GB1167440A (en)
NL (1) NL6802025A (en)
SE (1) SE325366B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2057410A1 (en) * 1969-11-26 1971-06-03 Air Liquide Flammable mixture for welding torches and other burners

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4492310B2 (en) * 2004-11-25 2010-06-30 日立工機株式会社 Fuel gas, combustion power tool driven by the fuel gas, and gas cylinder for combustion power tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2057410A1 (en) * 1969-11-26 1971-06-03 Air Liquide Flammable mixture for welding torches and other burners

Also Published As

Publication number Publication date
CH485836A (en) 1970-02-15
BE710677A (en) 1968-06-17
FR1604785A (en) 1972-01-31
ES350136A1 (en) 1969-04-16
NL6802025A (en) 1968-09-09
SE325366B (en) 1970-06-29
GB1167440A (en) 1969-10-15
AT280459B (en) 1970-04-10

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