DE186539C - - Google Patents
Info
- Publication number
- DE186539C DE186539C DENDAT186539D DE186539DA DE186539C DE 186539 C DE186539 C DE 186539C DE NDAT186539 D DENDAT186539 D DE NDAT186539D DE 186539D A DE186539D A DE 186539DA DE 186539 C DE186539 C DE 186539C
- Authority
- DE
- Germany
- Prior art keywords
- iron
- acid
- sulfuric acid
- furnace
- steel
- 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.)
- Active
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 229910001018 Cast iron Inorganic materials 0.000 claims description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910000754 Wrought iron Inorganic materials 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 229910052742 iron Inorganic materials 0.000 description 10
- 239000002253 acid Substances 0.000 description 5
- 229910001315 Tool steel Inorganic materials 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001296 Malleable iron Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D5/00—Heat treatments of cast-iron
- C21D5/04—Heat treatments of cast-iron of white cast-iron
- C21D5/06—Malleabilising
- C21D5/08—Malleabilising with oxidation of carbon
- C21D5/10—Malleabilising with oxidation of carbon in gaseous agents
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE186539C true DE186539C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=450291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT186539D Active DE186539C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE186539C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
0
- DE DENDAT186539D patent/DE186539C/de active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102008032911A1 (de) | Verfahren zur Herstellung eines Formteils | |
| DE3940438C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE60129350T2 (de) | Verfahren zur herstellung eines bands oder eines aus einem kaltgewalzten band aus martensitaushärtendem stahl ausgeschnittenen werkstücks | |
| DE186539C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE102012017711B4 (de) | Verfahren zum Wärmebehandeln eines Bauteils | |
| DE2657435C2 (de) | Verfahren zum Verbessern der physikalischen Eigenschaften eines hochfesten, niedriglegierten Kohlenstoff-Mangan-Stahls | |
| DE1923596A1 (de) | Kontinuierliches Verfahren zur Stahlherstellung | |
| EP0366646B1 (de) | Verfahren zum Herstellen eines plattierten Formkörpers | |
| DE314153C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE2114600B2 (de) | Verfahren zur gezielten Vakuumentkohlung hochlegierter Stähle | |
| DE261522C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| US719117A (en) | Process of converting cast-iron into steel or malleable iron and the product so obtained. | |
| DE149894C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE255240C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE886002C (de) | Verfahren zum Haerten von Blechen | |
| DE223495C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE1033479B (de) | Verfahren zur Herstellung von Verbundmetall aus Eisen und Aluminium | |
| DE137413C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE2712416A1 (de) | Verfahren zum kontinuierlichen thermischen behandeln von kaltwalzblechen | |
| EP1233078B1 (de) | Verfahren zum Abschrecken von metallischen Werkstücken | |
| DE415264C (de) | Kohlenstoffhaltiges Zementiermittel | |
| DE326281C (de) | Verfahren zur Entfernung der Schlacke bei der Gewinnung von Metallen und Metallegierungen in einem beliebigen Schmelzapparat | |
| DE47444C (de) | Verfahren zum Läutern von Nickel und Kobalt | |
| DE582166C (de) | Verfahren zur beschleunigten Erzeugung von Nitrierhaertungsschichten auf Gegenstaenden von Eisen und seinen Legierungen | |
| DE899559C (de) | Raffinationsverfahren fuer Magnesium und Magnesiumlegierugnen, insbesondere Knetlegierugnen |