DE815318C - Process for the production of shaped bricks from iron blast furnace slag - Google Patents
Process for the production of shaped bricks from iron blast furnace slagInfo
- Publication number
- DE815318C DE815318C DEP40665A DEP0040665A DE815318C DE 815318 C DE815318 C DE 815318C DE P40665 A DEP40665 A DE P40665A DE P0040665 A DEP0040665 A DE P0040665A DE 815318 C DE815318 C DE 815318C
- Authority
- DE
- Germany
- Prior art keywords
- production
- slag
- blast furnace
- iron blast
- furnace slag
- 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
- 239000002893 slag Substances 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000011449 brick Substances 0.000 title claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 10
- 229910052742 iron Inorganic materials 0.000 title description 5
- 239000007788 liquid Substances 0.000 claims description 6
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 238000005496 tempering Methods 0.000 claims description 3
- 229910001018 Cast iron Inorganic materials 0.000 claims 1
- 238000005266 casting Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009750 centrifugal casting Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Description
Verfahren zur Herstellung von Formsteinen aus Eisenhochofenschlacke Bekanntlich eignen sich Eisenhochofenschlacken zum Guß von Formlingen schlechter als die Schlacken von Kupferhüttenschachtöfen. Auch die kalkä rmer:n Eisanliochofenschlackon, die beim sog@,iiainiiteii sauren und halbsauren Hochofenbetrieb entfallen, liefern keine den Kupferschlacken gleichwertige Gußkörper; sie neigen vielmehr zu vollständig glasiger Erstarrung, oder es entsteht eine glasige Grundmasse, in die Kristallei eingebettet sind. Auch diese Schlacken haben nur geringe Festigkeit. Ein weiterer Maingel der Eiseinhochofenschlacken ist, deren Gasgehalt, der zu Blasenbildungen, fuhrt.Process for the production of shaped bricks from iron blast furnace slag It is well known that iron blast furnace slags are less suitable for casting moldings than the slag from copper smelting shaft furnaces. Even the poorer ones: n Eisanliochofen slag, which are omitted in the so-called @, iiainiiteii acidic and semi-acidic blast furnace operation no cast bodies equivalent to copper slags; rather, they tend to be complete vitreous solidification, or a vitreous base mass is created in the crystal are embedded. These slags also have little strength. Another Maingel is the iron furnace slag, the gas content of which leads to the formation of bubbles, leads.
Gemäß vorlieg,nderErfindung wird dadurch eine Verdichtung des Gefüges erzielt, daß man die Erstarrung und Temperung unter Druck vornimmt. Bereits bei Anwendung eines Überdruckes von i atii erreicht man eine wesentliche Erhöhung der Festigkeit der Formlinge. Zur Ausführung des Verfahrens kann man alle für das Gießen unter Druck brauchbaren Verfahren anwenden. Man kann z. B. einen hoch liegenden Einguß verwenden, so daß über der Schlacke in der Gußforin eine hohe Säule von flüssiger Schlacke steht. Man kann auch die vollgegossene Form mit einem fest verklammerten Deckel verschließen und dann eine Druckwirkung durch einen eingetriebenen Stempel oder durch eingeleitetes Druckgas oder Druckluft herbeiführen. In allen Fällen muß der Druck so lange aufrechterhalten werden, bis die Schlacke so weit erkaltet ist, daß sie sich nicht mehr verformen kann.According to the present invention, this results in a compression of the structure achieved that the solidification and tempering is carried out under pressure. Already at Applying an overpressure of i atii achieves a substantial increase in the Strength of the bricks. To carry out the process one can do all of the pouring use usable procedures under pressure. You can z. B. a high lying Use sprue so that a high column of liquid above the slag in the casting mold Slag stands. You can also use the fully molded form with a clamped firmly Close the lid and then apply a pressure effect through a driven punch or by introducing compressed gas or compressed air. Must in all cases the pressure can be maintained until the slag has cooled down enough that it can no longer deform.
Besonders geeignet für den Formguß von Eisenhochofenschlacke ist der Schleuderguß. Da der kristalline Zustand der stabile ist, hat die kristalline Schlacke die größte Dichtigkeit und bildet sich bei Druckerhöhung vorzugsweise aus; das Schleudern bewirkt außerdem eine innige Durchmischung der Schlacke und damit die beschleunigte Bildung von Kristallkeimen.. Von Vorteil ist auch die dichtere Packung der Kristalle an der Außenseite der geschleuderten Gußform, falls man Pflastersteine u. dgl. herstellen will.The is particularly suitable for the casting of iron blast furnace slag Centrifugal casting. Since the crystalline state is the stable one, the crystalline slag has the greatest tightness and develops preferentially when the pressure increases; the skidding also causes an intimate mixing of the Slag and with it the accelerated formation of crystal nuclei .. The denser one is also advantageous Pack the crystals on the outside of the spun mold, in case you have paving stones wants to produce and the like.
Zur Herstellung von Formsteinien durch Schleuderguß kann mann die Formen in. die Schleudermaschine einbauen. Wenn man auf diese Weise Pflastersteine herstellt, werden diese auf der Oberfläche leicht gekrümmt, auch werden sie oben einseitig etwas breiter als unten was jedoch für den Straßenbau gerade vorteilchaft- ist. Ein weiterer Vorzug der in der Schleudermaschine gegossenen Pflastersteine und Belagplatten, ist, daß die flüssige Schlacke sich innig mit dem Belagsplitt verbindet.For the production of molded stones by centrifugal casting, one can use the Install molds in the centrifugal machine. When you get paving stones this way produces, these are slightly curved on the surface, they also become above slightly wider on one side than at the bottom, which is, however, just beneficial for road construction. is. Another advantage of the paving stones cast in the centrifugal machine and facing tiles, is that the liquid slag becomes intimately with the facing chippings connects.
Eine Verbesserung des Gefüges erzielt man auch schon durch das bloße Schleudern der flüssigen oder halbflüssigen Schlacke, indem man diie Schlacke z. B. kontinuierlich durch die Schleuderform hindurchlaufen läßt und dann in. einer feststehenden Form vergießt.An improvement in the structure can also be achieved through the mere Centrifuging the liquid or semi-liquid slag by using the slag e.g. B. continuously through the centrifugal mold and then in. A potted fixed form.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP40665A DE815318C (en) | 1949-04-24 | 1949-04-24 | Process for the production of shaped bricks from iron blast furnace slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP40665A DE815318C (en) | 1949-04-24 | 1949-04-24 | Process for the production of shaped bricks from iron blast furnace slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE815318C true DE815318C (en) | 1951-10-01 |
Family
ID=7377283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP40665A Expired DE815318C (en) | 1949-04-24 | 1949-04-24 | Process for the production of shaped bricks from iron blast furnace slag |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE815318C (en) |
-
1949
- 1949-04-24 DE DEP40665A patent/DE815318C/en not_active Expired
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