US1346344A - Method for making chrome-steel - Google Patents
Method for making chrome-steel Download PDFInfo
- Publication number
- US1346344A US1346344A US318332A US31833219A US1346344A US 1346344 A US1346344 A US 1346344A US 318332 A US318332 A US 318332A US 31833219 A US31833219 A US 31833219A US 1346344 A US1346344 A US 1346344A
- Authority
- US
- United States
- Prior art keywords
- steel
- chromium
- making
- chrome
- titanium
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title description 8
- 229910000669 Chrome steel Inorganic materials 0.000 title description 4
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- 229940107218 chromium Drugs 0.000 description 10
- 235000012721 chromium Nutrition 0.000 description 10
- 239000011651 chromium Substances 0.000 description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 9
- 229910052804 chromium Inorganic materials 0.000 description 9
- 238000007792 addition Methods 0.000 description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 4
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000599 Cr alloy Inorganic materials 0.000 description 2
- 229910000604 Ferrochrome Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001844 chromium Chemical class 0.000 description 1
- 239000000788 chromium alloy Substances 0.000 description 1
- UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 description 1
- JJCFRYNCJDLXIK-UHFFFAOYSA-N cyproheptadine Chemical compound C1CN(C)CCC1=C1C2=CC=CC=C2C=CC2=CC=CC=C21 JJCFRYNCJDLXIK-UHFFFAOYSA-N 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
Definitions
- This invention relates generally to the manufacture of chrome steel, that is, a steel containing various proportions of chromium.
- this invention relates to making additions of ferro-chrome to steel and consists in a novel method whereby the process of manufacture can be carried on with much greater ease and with more certainfilzy of obtaining the quality of steel desire
- ferro-chromium-titanium alloy which is really a complex carbid of chromium, iron and titanium.
- the titanium present in this alloy is very readily oxidizable. It will oxidize, protecting the chromium, and consequently will allow the steel manufacturer to get a more accurate yield in his chromium addition.
- the greater part of the chromium alloys with the steel instead of reactin with the oxids.
- An improved process for making chro- -mium steel whichconsists in adding to molten steel an alloy of iron, chromium, titanium and carbon.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Description
UNITED STATES PATENT OFFICE.
HUGH C. SICARD, OF BUFFALO, NEW YORK, ASSIGNOR T0 UNITED STATES FERRO- ALLOYS CORPORATION, OF NEW YORK, N. Y. A CORPORATION OF NEW YORK.
METHOD FOR MAKING CHROME-STEEL.
neaaeaa.
No Drawing.
To all whom it may concern Be it known that I, HUGH C. SICARD, a citizen of the United States of America, and a resident of the city of Buffalo, county of Erie, and State of New York, have invented certain new and useful Improvements in Methods for Making Chrome- Steel, of which the following is a full, clear, and exact description.
This invention relates generally to the manufacture of chrome steel, that is, a steel containing various proportions of chromium.
More particularly this invention relates to making additions of ferro-chrome to steel and consists in a novel method whereby the process of manufacture can be carried on with much greater ease and with more certainfilzy of obtaining the quality of steel desire It is well known to the art that when a chromium addition is made to various grades of steel, it is sometimes hard to control, in a close range, the chromium content of the steel. It is recognized that a varying amount of chromium is lost mostly by oxidation with a more or less oxidized molten steel bath. This will occur even if attempts have been made to previously deoxidize such bath by the addition of a deoxidizer such as, for instance, the addition of 50% ferrosilicon.
I am aware that several attempts in the art have been made to provide alloys for the deoxidation of steel and inparticular for the use of titanium and that in some instances ferro chrome additions have been made by placingsuch additions into the fur- Serial No. 318,332.
nace when the molten steel is in a state of oxidation. I
I have discovered, after close examina tions of the slag resulting from such operations, that there is a certain amount of chromium oxid contained in the slag. A careful investigation shows that this chromium has been oxidized by contact with the oxids in the molten steel.
In carrying out my invention, I use a ferro-chromium-titanium alloy which is really a complex carbid of chromium, iron and titanium. The titanium present in this alloy is very readily oxidizable. It will oxidize, protecting the chromium, and consequently will allow the steel manufacturer to get a more accurate yield in his chromium addition. Thus the greater part of the chromium alloys with the steel instead of reactin with the oxids.
aving thus described my invention, what I claim is:
1. An improved process for making chro- -mium steel whichconsists in adding to molten steel an alloy of iron, chromium, titanium and carbon.
2. An improved process for making'chromium steel which consists in adding to molten steel a complex carbid of chromium, 1ron and titanium. t
3.- An improved process for making chromium steel which consists in adding to mo1-' ten steel, a ferro-chromium-titanium alloy combined with carbon.
In testimony whereof I. have hereunto signed my name.
HUGH o. SICARD.
Patented July 13, 1920.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US318332A US1346344A (en) | 1919-08-18 | 1919-08-18 | Method for making chrome-steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US318332A US1346344A (en) | 1919-08-18 | 1919-08-18 | Method for making chrome-steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1346344A true US1346344A (en) | 1920-07-13 |
Family
ID=23237723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US318332A Expired - Lifetime US1346344A (en) | 1919-08-18 | 1919-08-18 | Method for making chrome-steel |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1346344A (en) |
-
1919
- 1919-08-18 US US318332A patent/US1346344A/en not_active Expired - Lifetime
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