US2027999A - Permanent magnet containing nickel, aluminum, and manganese - Google Patents
Permanent magnet containing nickel, aluminum, and manganese Download PDFInfo
- Publication number
- US2027999A US2027999A US35208A US3520835A US2027999A US 2027999 A US2027999 A US 2027999A US 35208 A US35208 A US 35208A US 3520835 A US3520835 A US 3520835A US 2027999 A US2027999 A US 2027999A
- Authority
- US
- United States
- Prior art keywords
- manganese
- aluminum
- permanent magnet
- containing nickel
- magnet containing
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title description 14
- 229910052782 aluminium Inorganic materials 0.000 title description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title description 7
- 229910052748 manganese Inorganic materials 0.000 title description 7
- 239000011572 manganese Substances 0.000 title description 7
- 229910052759 nickel Inorganic materials 0.000 title description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000012535 impurity Substances 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/06—Filters making use of electricity or magnetism
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
Definitions
- the new alloy is more easily forged and rolled than the alloys as explained above, so that it may be applied more easilyfor obtaining special magnet steels.
- 0.5 to 10% manganese is added to lie new alloy. It is found that by this means the toughness and ductility of the alloy can be considerably increased, and the mechanical working is made very easy. At the same time a higher coercive force and a stronger residual magnetism can be obtained.
- a permanent magnet comprising 5 to 40% nickel, 7 to 20% aluminum, 0.5 to 10% manganese and the remainder iron.
- a permanent magnet comprising 5 to 40% nickel, 7 to aluminum, 0.5 to 10% manganese and the remainder substantially iron.
- a permanent magnet comprising 5 to 40% nickel, 7 to 20% aluminum, 0.5 to 10% manganese. from trace to 1.5% carbon and the remainder iron.
- a permanent magnet comprising 5 to 40% nickel, 7 to 20% aluminum, 0.5 to 10% manganese, from trace to 1.5% carbon and the remainder substantially iron.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hard Magnetic Materials (AREA)
Description
Patented Jan. 14, 1936 UNITED STATES PATENT OFFICE 2,027,999 PERMANENT MAGNET CONTAINING NICK- EL, ALUMINUM,
AND MANGANESE Tokushichi Mishima, Yodobashi-ku. Tokyo, Japan No Drawing.
Original application January 20,
1932, Serial No. 587,822. Divided and this allplication August 7, 1935, Serial No. 35.208. In Japan August 27, 1931 '4 Claims.
scribed that a so-called "irreversible nickel steel can be changed into a reversible steel" by the addition of aluminum, thereby obtaining a strong magnetic alloy. According to the invention it has been found that the addition of a proper amount of other metals as auxiliary elements will further improve the magnetic properties as well as the tenacity and ductility of the permanent magnet and facilitate the mechanical working of the magnet.
It is well known that the more minute the microstructure of the magnet steels is, the greater is the increase in the number of molecular magnets arranged irregularly at the boundaries of the crystal grains so that consequently the coercive force and they residual magnetism also increase. This feature is galned by the addition of certain amounts of one or more auxiliary metals to the main elements iron, nickel and aluminum in the proportions herein given.
It is often desirable that the new alloy is more easily forged and rolled than the alloys as explained above, so that it may be applied more easilyfor obtaining special magnet steels. For this purpose 0.5 to 10% manganese is added to lie new alloy. It is found that by this means the toughness and ductility of the alloy can be considerably increased, and the mechanical working is made very easy. At the same time a higher coercive force and a stronger residual magnetism can be obtained.
Actual examples for carrying out the invention thus modified are given:
Chemical composition (per cent) Magnetic properties Coercive Residual Alumi- M n auese force (He) etism Iron Nickel num a g (8a (8 17.5 0. 8 2. 150 9,600 l7. 0 9. 5. 0 155 9, 700 01.2 25. 0 l0. 5 3. 0 265 9, 700 54.7 30. 5 l2. 0 2. 5 490 9, 500
From this table it will be seen that themagnetic property is greatly increased. This 18 due to the fact that the manganese added to the alloy makes the crystal grains very fine and consequently increases the number of molecular magnets arranged irregularly at the boundary of the grains. Therefore this alloy may be used for making ordinary permanent magnets, and also in making special magnets required to be finished by complicated and precise working. It is also noted in this case that the presence'of carbon of below 1.5% and/or a small amount of impurities does not materially affect the magnetic properties of the alloy.
I claim:
1. A permanent magnet comprising 5 to 40% nickel, 7 to 20% aluminum, 0.5 to 10% manganese and the remainder iron.
2. A permanent magnet comprising 5 to 40% nickel, 7 to aluminum, 0.5 to 10% manganese and the remainder substantially iron.
3. A permanent magnet comprising 5 to 40% nickel, 7 to 20% aluminum, 0.5 to 10% manganese. from trace to 1.5% carbon and the remainder iron.
4. A permanent magnet comprising 5 to 40% nickel, 7 to 20% aluminum, 0.5 to 10% manganese, from trace to 1.5% carbon and the remainder substantially iron.
TOKUSHICHQfAflSI-IIMA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US35208A US2027999A (en) | 1932-01-20 | 1935-08-07 | Permanent magnet containing nickel, aluminum, and manganese |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US587822A US2027994A (en) | 1931-03-09 | 1932-01-20 | Magnet steel containing nickel and aluminium |
| US35208A US2027999A (en) | 1932-01-20 | 1935-08-07 | Permanent magnet containing nickel, aluminum, and manganese |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2027999A true US2027999A (en) | 1936-01-14 |
Family
ID=26711877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US35208A Expired - Lifetime US2027999A (en) | 1932-01-20 | 1935-08-07 | Permanent magnet containing nickel, aluminum, and manganese |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2027999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3111405A (en) * | 1958-06-16 | 1963-11-19 | Langley Alloys Ltd | Aluminum-manganese-iron alloys |
-
1935
- 1935-08-07 US US35208A patent/US2027999A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3111405A (en) * | 1958-06-16 | 1963-11-19 | Langley Alloys Ltd | Aluminum-manganese-iron alloys |
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