AT201384B - Method of making a flux - Google Patents
Method of making a fluxInfo
- Publication number
- AT201384B AT201384B AT201384DA AT201384B AT 201384 B AT201384 B AT 201384B AT 201384D A AT201384D A AT 201384DA AT 201384 B AT201384 B AT 201384B
- Authority
- AT
- Austria
- Prior art keywords
- flux
- brown
- making
- color
- black
- Prior art date
Links
- 230000004907 flux Effects 0.000 title description 6
- 238000004519 manufacturing process Methods 0.000 title description 4
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 230000001603 reducing effect Effects 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Nonmetallic Welding Materials (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung eines Flussmittels
EMI1.1
<Desc/Clms Page number 2>
brennt,Manganoxyden macht sich, wie festgestellt, in der Farbe des Flussmittels bemerkbar, u. zw. derart, dass ein Flussmittel, welches nur MnO enthält, eine grünliche Farbe aufweist, und mit steigendem Gehalt von mn208 eine gelbgrüne, gelbe, lichtbraune, dunkelbraune, schwarzbraune bis schwarze Farbe erhält. Der optimale Gehalt von höheren Oxyden entspricht der (funkelbraunen bis schwarzbraunen Farbe.
Bei der Erzeugung des Flussmittels gemäss der Erfindung wird derart vorgegangen, dass feingemahlener Quarzsand mit feingemahlenem Manganerz oder Braunstein und mit der erforderlichen Menge von Flussspat vermischt wird. Das Gemisch wird dann unter Zusatz von Graphit oder eines andern geeigneten Reduktionsmittels geschmolzen. Ein Vorteil des Graphits ist der geringe Gehalt an Schwefel und Phosphor, welche Elemente auf der minimalen Grenze zu halten sind, und ferner eine geeignete Geschwindigkeit der Reaktion. Die Menge des Reduktionsmittels und die Schmelzdauer werden derart gewählt, dass die Schmelze eine dunkelbraune bis schwarzbraune Farbe aufweist.
Das Schmelzen wird vorzugsweise in einem Wannen-Flammofen durchgeführt. Dabei wird die Reduktionswirkung des Reduktionsmittels durch Aufrechterhaltung einer Reduktionsatmosphäre im Ofen unterstützt und geregelt. Beim Schmelzen werden die in dem Manganerz oder Braunstein anwesenden höheren Manganoxyde zu MnO mit einer geringen Menge von Min 0. reduziert. Die Schmelze wird dann in einer geeigneten Weise abgekühlt und auf die erforderliche Körnung granuliert.
PATENTANSPRÜCHE ;
1. Verfahren zur Erzeugung eines Flussmittels zum Schweissen von Stählen mit niedrigem Kohlenstoffgehalt und legierten Stählen, welches 80-90 Gew.-% Manganoxydulsilikat, entstanden durchSchmel- zen von Manganerz oder Braunstein, Quarzsand und weiteren Zusätzen enthält, dadurch gekennzeichnet, dass die Schmelze zu dunkelbrauner bis schwarzbrauner Farbe durch Einwirkung von Graphit oder eines andern geeigneten Reduktionsmittels reduziert wird.
<Desc / Clms Page number 1>
Method of making a flux
EMI1.1
<Desc / Clms Page number 2>
burns, manganese oxides, as noted, are noticeable in the color of the flux, u. in such a way that a flux which contains only MnO has a greenish color and, with increasing mn208 content, acquires a yellow-green, yellow, light brown, dark brown, black-brown to black color. The optimal content of higher oxides corresponds to (sparkling brown to black-brown color.
In the production of the flux according to the invention, the procedure is such that finely ground quartz sand is mixed with finely ground manganese ore or brownstone and with the required amount of fluorspar. The mixture is then melted with the addition of graphite or another suitable reducing agent. An advantage of graphite is the low content of sulfur and phosphorus, which elements have to be kept to the minimum limit, and also a suitable speed of the reaction. The amount of reducing agent and the melting time are selected such that the melt has a dark brown to black-brown color.
The melting is preferably carried out in a furnace furnace. The reducing effect of the reducing agent is supported and regulated by maintaining a reducing atmosphere in the furnace. During melting, the higher manganese oxides present in the manganese ore or brownstone are reduced to MnO with a small amount of min. The melt is then cooled in a suitable manner and granulated to the required grain size.
PATENT CLAIMS;
1. Process for the production of a flux for welding steels with a low carbon content and alloyed steels, which contains 80-90% by weight manganese oxydulsilicate, created by melting manganese ore or manganese dioxide, quartz sand and other additives, characterized in that the melt contains dark brown to black-brown color is reduced by the action of graphite or another suitable reducing agent.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT201384T | 1957-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT201384B true AT201384B (en) | 1958-12-27 |
Family
ID=3669292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT201384D AT201384B (en) | 1957-02-01 | 1957-02-01 | Method of making a flux |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT201384B (en) |
-
1957
- 1957-02-01 AT AT201384D patent/AT201384B/en active
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