US1374038A - Process for producing zirconium steel - Google Patents
Process for producing zirconium steel Download PDFInfo
- Publication number
- US1374038A US1374038A US398513A US39851320A US1374038A US 1374038 A US1374038 A US 1374038A US 398513 A US398513 A US 398513A US 39851320 A US39851320 A US 39851320A US 1374038 A US1374038 A US 1374038A
- Authority
- US
- United States
- Prior art keywords
- zirconium
- steel
- alloy
- silicon
- producing zirconium
- 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
- 229910052726 zirconium Inorganic materials 0.000 title description 28
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 title description 26
- 229910000831 Steel Inorganic materials 0.000 title description 25
- 239000010959 steel Substances 0.000 title description 25
- 238000000034 method Methods 0.000 title description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 12
- 239000010703 silicon Substances 0.000 description 12
- 229910052710 silicon Inorganic materials 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 229910000676 Si alloy Inorganic materials 0.000 description 5
- 229910001093 Zr alloy Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910000859 α-Fe 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
- PROCESS FOR PRODUCING ZIRCONIUM STEEL PROCESS FOR PRODUCING ZIRCONIUM STEEL.
- This invention relates generally to the manufacture of zirconium steel and more particularly to a process of making such steel insuch a way that the physical qualities of the product will be substantially preserved throughout the process.
- This invention overcomes the difliculties just set forth and the practice of the invention herein described will produce a product in which the zirconium is substantially protected from oxidation during the process and thereby a product of a predetermined composition can be secured and substantially none of the zirconium will be found in the resulting steel in a divided form.
- the zirconiate of lime is always found in the slag and in particular in the basic processes, or with the alumina which is formed by the oxidation of aluminum which has been added as such to the molten bath as a deoxidizin agent or still found as an impurity in t e ferro-zirconium, if
- An improved rocess of adding zirconium to steel whic h consists in adding to molten steel a ca-rbid of zirconium and silicon.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Description
bination is broken up HUG-HI G. SICARD, 0F BUFFALO, NEW YORK.
PROCESS FOR PRODUCING ZIRCONIUM STEEL.
No Drawing.
To all whom it may concern:
Be it known that I, HUGH C. SIGARD, 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 a new and useful Process for Producing Zirconium Steel, of which the following is a full, clear, and exact description.-
This invention relates generally to the manufacture of zirconium steel and more particularly to a process of making such steel insuch a way that the physical qualities of the product will be substantially preserved throughout the process.
On A ril 6th, 1920, I was granted U. S. Letters atent No. 1,335,992 for a process for producing zirconium steel. In carrying out the process described in the said patent, I used a ferro-zirconium-titanium alloy and I found that if a small quantity of the zirconium of such alloy is oxidized, it is left in the steel in a divided form thereby affecting somewhat the physical qualities of the zirconium steel. This invention overcomes the difliculties just set forth and the practice of the invention herein described will produce a product in which the zirconium is substantially protected from oxidation during the process and thereby a product of a predetermined composition can be secured and substantially none of the zirconium will be found in the resulting steel in a divided form.
I have discovered that by using an alloy of zirconium and silicon, with or without a carbon content, in which the zirconium exists mostly as zirconium silicids, such comwhen the alloy is added to the molten steel. The silicon then oxidizes rapidly and thereby substantially prevents the oxidation of the zirconium and at the same time combines with whatever zirconium has beenoxidized and gives a complex silicate and zirconiate of lime and alumina. The zirconiate of lime is always found in the slag and in particular in the basic processes, or with the alumina which is formed by the oxidation of aluminum which has been added as such to the molten bath as a deoxidizin agent or still found as an impurity in t e ferro-zirconium, if
Specification of Letters Patent.
Patented Apr. 5, 1921.
Application filed July 23, 1920. Serial No. 398,513.
such alloy has been made thermic process. Therefore, in carrying out .my invention I use an alloy of zirconlum and silicon with or without a carbon content in which the zirconium is found mostly as zirconium silicids. This alloy is then added to the molten steel and the reactions above set forth occur. Thereby, the zirconium is protected and the resulting steel productis free from the objections hereinbefore noted.
have found that the best results have been secured by using an alloy in which the siliconcontent, is from 5% to 30% of the zirconium content. I have also found that an excess of silicon in the ferro-zirconium by the aluminoalloy is an objection, as, if it does not oxize it goes in solution in the ferrite as a complex silicid, and in all such grades of zirconium steel a certain amount of silicon is always specified.
Having thus described my invention what claim is:
1. An improved process of making zirconium steel which consists in adding to molten steel an alloy of zirconium and sili con.
2. An improved process of making zirconium steel which consists in adding to molten steel an alloy of zirconium and silicon having a carbon content.
3. An improved process of making zirconium steel which consists in adding to molten steel an alloy of zirconium and silicon in which the silicon content is from 5% to 30% of the zirconium content.
4. An improved process of making zirconium steel which consists in adding to molten steel an alloy of zirconium and silicon in which the silicon content is sufliciently great to react with all of the o-xids contained in the steel, thereby protecting the zirconium content of the steel.
5. An improved rocess of adding zirconium to steel whic h consists in adding to molten steel a ca-rbid of zirconium and silicon.
In testimony signed my name.
whereof I have hereunto HUGH o. SICARD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US398513A US1374038A (en) | 1920-07-23 | 1920-07-23 | Process for producing zirconium steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US398513A US1374038A (en) | 1920-07-23 | 1920-07-23 | Process for producing zirconium steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1374038A true US1374038A (en) | 1921-04-05 |
Family
ID=23575666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US398513A Expired - Lifetime US1374038A (en) | 1920-07-23 | 1920-07-23 | Process for producing zirconium steel |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1374038A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2840872A (en) * | 1952-01-14 | 1958-07-01 | Sharon Steel Corp | Method of economically introducing zirconium into steel |
-
1920
- 1920-07-23 US US398513A patent/US1374038A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2840872A (en) * | 1952-01-14 | 1958-07-01 | Sharon Steel Corp | Method of economically introducing zirconium into steel |
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