US836759A - Method of making magnetic materials. - Google Patents
Method of making magnetic materials. Download PDFInfo
- Publication number
- US836759A US836759A US32489606A US1906324896A US836759A US 836759 A US836759 A US 836759A US 32489606 A US32489606 A US 32489606A US 1906324896 A US1906324896 A US 1906324896A US 836759 A US836759 A US 836759A
- Authority
- US
- United States
- Prior art keywords
- magnetic materials
- making magnetic
- cool
- temperature below
- alloy
- 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
- 239000000696 magnetic material Substances 0.000 title description 5
- 238000004519 manufacturing process Methods 0.000 title description 3
- 239000000956 alloy Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- RGCLLPNLLBQHPF-HJWRWDBZSA-N phosphamidon Chemical compound CCN(CC)C(=O)C(\Cl)=C(/C)OP(=O)(OC)OC RGCLLPNLLBQHPF-HJWRWDBZSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000003303 reheating 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
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
- C21D8/1233—Cold rolling
Definitions
- ma etic material which consists in rolling an a loy of iron combined with other elements (more particularly silicon, aluminiurn, or phosphorus) into thin sheets and then subjecting said rolled sheets to a heat treatment, whereby said sheets are first heated to a temperature below the Ineltingpoint, al'-, lowed to cool, reheated to a temperature above that first employed, and then fin'ally cooled.
- the rolling or forging of the alloy into thin sheets as set forth in my patent aforesaid necessarily implies a preliminary'heating of said alloy to a high tem erature in order to enable it to be thus' mec anically treated.
- My resent invention differs from that claime in my Letters Patent aforesald m that instead of first subjecting the rolled or wroughtthin sheetr to a temperature below that subse uentl employed I subject it to one hi her t an t at subsequently employed.
- the herein-described method of producing a magnetic material of hi h permeability and low hysteresis action, w 'ch consists in alloying a magnetic substance with silicon, heating the mass and working the same into a sheet, heating such sheet to a temperature below the meltin -point of the material and allowing it to coo reheating said sheet to a? temperature below that first employed andagain allowing it to cool.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Description
UNITED STATES,
ROBERT A. HADFIELD, OF SHEFFI PATENT OFFICE.
ELD, ENGLAND.
METHOD OF MAKING MAGNETIC MATERIALS.-
Specification of Letters Patent.
Patented Nov. 27, 1906.
Application filed July 5,1906. Serial No. 324,896.
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 Sheffield, England, have invented a certain new and useful Improvement in Methods of Making Magnetic Materials, of which the following is "a specification. In United States Letters Patent No. 767,110, granted to me August 9, 1904, I have described and claimed a method of making ma etic material, which consists in rolling an a loy of iron combined with other elements (more particularly silicon, aluminiurn, or phosphorus) into thin sheets and then subjecting said rolled sheets to a heat treatment, whereby said sheets are first heated to a temperature below the Ineltingpoint, al'-, lowed to cool, reheated to a temperature above that first employed, and then fin'ally cooled. As the magnetic material referred to (and especial] the alloy or alloys above mentioned) is co d-short, the rolling or forging of the alloy into thin sheets as set forth in my patent aforesaid necessarily implies a preliminary'heating of said alloy to a high tem erature in order to enable it to be thus' mec anically treated.
My resent invention differs from that claime in my Letters Patent aforesald m that instead of first subjecting the rolled or wroughtthin sheetr to a temperature below that subse uentl employed I subject it to one hi her t an t at subsequently employed.
Thus first heat the alloy to, say, 9509 centi ggade, cool, reheat to 750 centigrade, and
all cool.
1. The herein-described method of producing a'ma etic material of hi h ermeability and low ysteresis action which consists in alloying a magnetic substance with silicon, reducing the alloy to a thin body, heating such thin body to a temperature below its melting-point, allowing it to cool, reheatin it to a temperature below that first employe and again allowing it to cool.
2. The herein-described method of producing a magnetic material of hi h permeability and low hysteresis action, w 'ch consists in alloying a magnetic substance with silicon, heating the mass and working the same into a sheet, heating such sheet to a temperature below the meltin -point of the material and allowing it to coo reheating said sheet to a? temperature below that first employed andagain allowing it to cool.
In witness whereof I have signed my name hereto in the presence of two witnesses.
fROBERT A. HADFIELD:
-. Witnesses: I V 1 HENRY E. DIXON, FRANK HUTsoN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32489606A US836759A (en) | 1906-07-05 | 1906-07-05 | Method of making magnetic materials. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32489606A US836759A (en) | 1906-07-05 | 1906-07-05 | Method of making magnetic materials. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US836759A true US836759A (en) | 1906-11-27 |
Family
ID=2905233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US32489606A Expired - Lifetime US836759A (en) | 1906-07-05 | 1906-07-05 | Method of making magnetic materials. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US836759A (en) |
-
1906
- 1906-07-05 US US32489606A patent/US836759A/en not_active Expired - Lifetime
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