GB1323826A - Process for electroplating with ni-fe alloy - Google Patents
Process for electroplating with ni-fe alloyInfo
- Publication number
- GB1323826A GB1323826A GB2131371A GB2131371A GB1323826A GB 1323826 A GB1323826 A GB 1323826A GB 2131371 A GB2131371 A GB 2131371A GB 2131371 A GB2131371 A GB 2131371A GB 1323826 A GB1323826 A GB 1323826A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electro
- wire
- treatment device
- plated
- plating
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
- H01F41/24—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates from liquids
- H01F41/26—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates from liquids using electric currents, e.g. electroplating
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Electroplating Methods And Accessories (AREA)
- Thin Magnetic Films (AREA)
Abstract
1323826 Electro-plating with nickel-iron alloy HITACHI Ltd 19 April 1971 [6 Feb 1970] 21313/71 Heading C7B An Fe-Ni permalloy film, e.g. 80% Ni-20% Fe for a memory element and having uniform composition throughout its thickness and zero magnetostriction co-efficient, is electro-plated, e.g. on to a Ag or Au wire, from an acidic electrolyte containing ferrous and nickel salts, e.g. sulphate, chloride or sulphamate, in which the Ni concentration is 0À02 to 0À15 mol/l and the weight ratio of Ni: Fe is 4 to 20:1, using a constant D.C. density greater than 5A/dm<SP>2</SP>. The wire 3 may be continuously passed in succession through a pre-treatment device 6, a rotating cylindrical agitator 4 in the electro-plating bath 1 between rinsing devices 8, 8' and a heat-treatment device 9 e.g. an electric ageing furnace, whilst actuating power source 15 to provide D.C. in the bath and A.C. in the wire. The electro-plated wire 12 has an axis of easy magnetization in the peripheral direction.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP992970A JPS4923746B1 (en) | 1970-02-06 | 1970-02-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1323826A true GB1323826A (en) | 1973-07-18 |
Family
ID=11733745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2131371A Expired GB1323826A (en) | 1970-02-06 | 1971-04-19 | Process for electroplating with ni-fe alloy |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS4923746B1 (en) |
DE (1) | DE2105529A1 (en) |
GB (1) | GB1323826A (en) |
NL (1) | NL7101616A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4279707A (en) | 1978-12-18 | 1981-07-21 | International Business Machines Corporation | Electroplating of nickel-iron alloys for uniformity of nickel/iron ratio using a low density plating current |
CN118098748A (en) * | 2024-04-26 | 2024-05-28 | 兰州大学 | Permalloy coated magnetic core with continuously-changed iron-nickel ratio, preparation method thereof and GMI sensor probe |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA77361B (en) * | 1976-02-04 | 1978-03-29 | M & T Chemicals Inc | Protective alloy electrodeposits on ferrous surfaces |
JPS5582793A (en) * | 1978-12-18 | 1980-06-21 | Ibm | Nickelliron plating method |
-
1970
- 1970-02-06 JP JP992970A patent/JPS4923746B1/ja active Pending
-
1971
- 1971-02-05 DE DE19712105529 patent/DE2105529A1/en active Pending
- 1971-02-08 NL NL7101616A patent/NL7101616A/xx unknown
- 1971-04-19 GB GB2131371A patent/GB1323826A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4279707A (en) | 1978-12-18 | 1981-07-21 | International Business Machines Corporation | Electroplating of nickel-iron alloys for uniformity of nickel/iron ratio using a low density plating current |
CN118098748A (en) * | 2024-04-26 | 2024-05-28 | 兰州大学 | Permalloy coated magnetic core with continuously-changed iron-nickel ratio, preparation method thereof and GMI sensor probe |
Also Published As
Publication number | Publication date |
---|---|
NL7101616A (en) | 1971-08-10 |
DE2105529A1 (en) | 1971-09-16 |
JPS4923746B1 (en) | 1974-06-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |