US836757A - Process of improving the magnetic qualities of iron-silicon-manganese alloys. - Google Patents
Process of improving the magnetic qualities of iron-silicon-manganese alloys. Download PDFInfo
- Publication number
- US836757A US836757A US32489306A US1906324893A US836757A US 836757 A US836757 A US 836757A US 32489306 A US32489306 A US 32489306A US 1906324893 A US1906324893 A US 1906324893A US 836757 A US836757 A US 836757A
- Authority
- US
- United States
- Prior art keywords
- iron
- silicon
- improving
- manganese alloys
- magnetic qualities
- 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 6
- 229910000914 Mn alloy Inorganic materials 0.000 title description 3
- IWTGVMOPIDDPGF-UHFFFAOYSA-N [Mn][Si][Fe] Chemical compound [Mn][Si][Fe] IWTGVMOPIDDPGF-UHFFFAOYSA-N 0.000 title description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000003303 reheating Methods 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005096 rolling process Methods 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/1272—Final recrystallisation annealing
Definitions
- My present invention is a process of increasing the permeability and electric resistance and decreasing the hysteresls action of sald lron-sllicon-manganese alloy.
- the process of producing a magnetic alloy of high magnetic permeability and electric resistance and low hysteresis action which consists in adding to an alloy of iron and s licon an admixture of manganese in proportion not suflicient to impair said magnetic qualities, then heating said iron-silicon-manganese, alloy to a relatively high temperature below its melting-point, allowing the alloy to cool, reheating it to a temperature below that first employed, and finally cooling.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Soft Magnetic Materials (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Hard Magnetic Materials (AREA)
Description
UNITED sTArEs PATENT OFFICE.
ROBERT A. HADFIELD, OF SHEFFIELD, ENGLAND.
PROCESS OF IMPROVING THE MAGNETIC QUALITIES 0F IRON-SILICON-MANGANESE ALLOYS.
To all whom it may concern:
Be it known that I, ROBERT ABBOTT HAD- FIELD, a subject of the King of Great Britain, residing at Sheflield, England, have invented a certain new and useful Improvement in Processes for Improving the Magnetic Qualities of Iron- Silicon Manganese Alloys, of which the following is a specification,
In United States Letters Patent No. 745,829 granted to me December 1 1903, I
have described and claimed a process'ofprohigh permea bility and low hysteresis action which con-Y ducing a magnetic material 0 My present invention is a process of increasing the permeability and electric resistance and decreasing the hysteresls action of sald lron-sllicon-manganese alloy.
Specification of Letters Patent.
Application filed July 5, 1906. Serial No. 324,893.
Patented Nov. 27, 1906.
I carry my said process into efi'ect by melting together the ingredients in a suitable vessel, casting into ingots, rolling or working and treating the same by first heating the alloy to between about 900 and 1,100 centigrade, then allowing it to cool, then reheating to between 700 and 850 centigradethat is, to a temperature lower than the one at- I claim- The process of producing a magnetic alloy of high magnetic permeability and electric resistance and low hysteresis action, which consists in adding to an alloy of iron and s licon an admixture of manganese in proportion not suflicient to impair said magnetic qualities, then heating said iron-silicon-manganese, alloy to a relatively high temperature below its melting-point, allowing the alloy to cool, reheating it to a temperature below that first employed, and finally cooling.
In witness whereof I have signed my name hereto in the presence of two witnesses.
ROBERT A HADFIELD.
Witnesses:
'HENRY E. DIXON,
FRANK HUTsoN.
tained during the first heating. and thenfinally'
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32489306A US836757A (en) | 1906-07-05 | 1906-07-05 | Process of improving the magnetic qualities of iron-silicon-manganese alloys. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32489306A US836757A (en) | 1906-07-05 | 1906-07-05 | Process of improving the magnetic qualities of iron-silicon-manganese alloys. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US836757A true US836757A (en) | 1906-11-27 |
Family
ID=2905231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US32489306A Expired - Lifetime US836757A (en) | 1906-07-05 | 1906-07-05 | Process of improving the magnetic qualities of iron-silicon-manganese alloys. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US836757A (en) |
-
1906
- 1906-07-05 US US32489306A patent/US836757A/en not_active Expired - Lifetime
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