DE429736C - Metal rods or electrodes for electric arc welding - Google Patents
Metal rods or electrodes for electric arc weldingInfo
- Publication number
- DE429736C DE429736C DEE30734D DEE0030734D DE429736C DE 429736 C DE429736 C DE 429736C DE E30734 D DEE30734 D DE E30734D DE E0030734 D DEE0030734 D DE E0030734D DE 429736 C DE429736 C DE 429736C
- Authority
- DE
- Germany
- Prior art keywords
- electrodes
- electric arc
- arc welding
- metal rods
- grain
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
AUSGEGEBEN AM
4. JUN11926ISSUED ON
4th JUN11926
PATENTSCHRIFTPATENT LETTERING
~ JVl 429736 -KLASSE 21h GRUPPE~ JVl 429736 - CLASS 21h GROUP
(E30734 Vllljaih)(E30734 Vllljaih)
Metallstäbe bzw. Elektroden zur elektrischen Lichtbogenschweißung.Metal rods or electrodes for electric arc welding.
Patentiert im Deutschen Reiche vom 7. Mai 1924 ab. Patented in the German Empire on May 7, 1924 .
Die Erfindung betrifft Metallstäbe bzw. Elektroden zur elektrischen Lichtbogenschweißung und den zugehörigen Herstellungsprozeß.The invention relates to metal rods or electrodes for electric arc welding and the associated manufacturing process.
Um Metallstäbe zur elektrischen Lichtbogenschweißung brauchbar zu machen,, werden sie umgeben. Diese Umhüllung soll vor allen Dingen dazu führen^ daß die Elektroden weniger spritzen als nicht umhüllte Stäbe.To make metal rods useful for electric arc welding, they are surround. Above all else, this covering should lead to the electrodes spray less than uncovered sticks.
Die Erfindung betrifft Elektroden, welche ohne Anwendung des Überzugsmaterials, alsoThe invention relates to electrodes, which without using the coating material, so
bisher mit Überzugsmaterial irgendweicher Art j -aus sich, den gleichen Effekt herbeiführen,up to now with covering material of some kind j - bring about the same effect by themselves,
Es ist durch Versuche ermittelt^ daß blanke Meitallstäbe sich wie umhüllte Stäbe verhalten, wenn die Korngrößen der Kristalle des Metalls eigenartige Merkmale aufweisen, S Betrachtet man die Querschnittsfläche einer Metallelektrode, so wird normalerweise die Korngröße gleichmäßig sein, weil das verwendete Drahtmaterial in der Fabrikation bislang" gleichmäßig geglüht und abgekühltIt has been determined by experiments that bare Meital rods behave like coated rods when the grain sizes of the crystals of the metal have peculiar characteristics, S considering the cross-sectional area of a Metal electrode, so usually the grain size will be uniform because of the one used Wire material in the production up to now has been "annealed and cooled evenly
ίο wurde.ίο was.
Mitunter sind auch Ungleichmäßigkeiten zu finden, welche eine ungleichmäßige thermische Behandlung erkennen lassen. Solche unbeabsichtigten Ungleichmäßigkeiten führen bisweilen zu Stäben, wie sie die Erfindung fordert, die sie jedoch systematisch zur Anwendung bringt. Bekanntlich wachsen bei der Erhitzung bereits erstarrte Kristalle, während vom gleichen Ausgangszustande aus eine Verkleinerung eintritt, wenn ohne nennenswerte äußere Erhitzung Druck mechanisch, wirksam wird.Occasionally, irregularities can also be found, which result in an uneven thermal Recognize treatment. Such unintended irregularities sometimes result to rods as required by the invention, but which they systematically apply brings. It is known that crystals that have already solidified grow during heating from the same initial state a reduction occurs, if without any noteworthy external heating pressure mechanically, becomes effective.
Wird beispielsweise ein Metalldraht geglüht, so findet, dem "Wärmegefälle folgend, von außen nach innen eine Kornvergrößerung statt. Diese bliebe erhalten, wenn das glühende Metall schnell genug abkühlt. Nach; der Erfindung soll die Kornvergrößerung nun nicht so weit getrieben werden, daß die ganze Querschnittsfläche davon betroffen ist, sondern es soll je nach der Eisenqualität eine größere oder kleinere Mantelzone, wie in der Abb. 1 beispielsweise gezeigt ist, gröberes Korn aufweisen. Soll die Wirkung der Zone nur einseitig sein, so kann durch einseitige zusatzliehe Kühlung des Metalldrahtes beim Glühen oder Abkühlen ein Kornbild, ähnlich dem Beispiel Abb. 2, erzielt werden.If, for example, a metal wire is annealed, then, following the "heat gradient, from a grain enlargement takes place outside inwards. This would be preserved if the glowing metal cools down quickly enough. To; the invention is not intended to increase the grain size so far that the entire cross-sectional area is affected, but rather it Depending on the iron quality, a larger or smaller mantle zone, as in Fig. 1 is shown, for example, have coarser grain. Should the effect of the zone only be one-sided can be, by one-sided additional cooling of the metal wire during annealing or cooling, a grain pattern similar to the example in Fig. 2 can be achieved.
Anstatt einer Komvergrößerung kann auch eine Kornverkleinerung hervorgerufen werden, und zwar durch mechanisch wirkenden Druck. Hierbei wird ein Metalldraht von gleichmäßigem Querschnittsbiid, der Druckfortpflanzung entsprechend, von außen her eine Kornverkleinerung erhalten.Instead of a grain enlargement, a grain reduction can also be caused, by means of mechanical pressure. Here is a metal wire of uniform Cross-sectional image, corresponding to the pressure propagation, a grain reduction from the outside obtain.
Eine gleichmäßige Einwirkung ist z. B. in Abb. 3 dargestellt. Wenn die Druckmittel nur einseitig wirken, so können je nach Bedarf Kornänderungen verschiedenster Art, wie z. B. Abb. 4 zeigt, hervorgerufen werden.A uniform effect is z. B. shown in Fig. 3. If only the pressure means act on one side, so grain changes of various kinds, such. B. Fig. 4 shows.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE30734D DE429736C (en) | 1924-05-07 | 1924-05-07 | Metal rods or electrodes for electric arc welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE30734D DE429736C (en) | 1924-05-07 | 1924-05-07 | Metal rods or electrodes for electric arc welding |
Publications (1)
Publication Number | Publication Date |
---|---|
DE429736C true DE429736C (en) | 1926-06-04 |
Family
ID=7074670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEE30734D Expired DE429736C (en) | 1924-05-07 | 1924-05-07 | Metal rods or electrodes for electric arc welding |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE429736C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0026216A1 (en) * | 1979-04-09 | 1981-04-08 | United Technologies Corp | Process for fusion welding a superalloy workpiece and method of hard-facing superalloys with a wire produced by rapid liquid quenching. |
-
1924
- 1924-05-07 DE DEE30734D patent/DE429736C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0026216A1 (en) * | 1979-04-09 | 1981-04-08 | United Technologies Corp | Process for fusion welding a superalloy workpiece and method of hard-facing superalloys with a wire produced by rapid liquid quenching. |
EP0026216A4 (en) * | 1979-04-09 | 1981-08-27 | United Technologies Corp | Process for fusion welding a superalloy workpiece and method of hard-facing superalloys with a wire produced by rapid liquid quenching. |
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