JPS6455307A - Production of acicular powder - Google Patents

Production of acicular powder

Info

Publication number
JPS6455307A
JPS6455307A JP21104987A JP21104987A JPS6455307A JP S6455307 A JPS6455307 A JP S6455307A JP 21104987 A JP21104987 A JP 21104987A JP 21104987 A JP21104987 A JP 21104987A JP S6455307 A JPS6455307 A JP S6455307A
Authority
JP
Japan
Prior art keywords
film
sheet
acicular powder
purity
metal
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.)
Pending
Application number
JP21104987A
Other languages
Japanese (ja)
Inventor
Tomoo Kamigaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP21104987A priority Critical patent/JPS6455307A/en
Publication of JPS6455307A publication Critical patent/JPS6455307A/en
Pending legal-status Critical Current

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  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

PURPOSE:To produce homogeneous acicular powder which has high purity and is unified in a crystal growth direction by forming a porous anodized Al film on an Al sheet and electrodepositing a metal in the pores thereof, then removing the oxide film. CONSTITUTION:After the high-purity Al sheet of about >=99.99% is subjected to pretreatment such as degreasing, the sheet is anodized by an oxalic acid method or sulfuric acid method to form the porous anodized Al film of a prescribed thickness on the Al sheet. The sheet is then immersed for about 1-15 minutes in an about 1-10% phosphoric acid soln. at about 20-40 deg.C by which the pore diameter of the film is adjusted. After the metal or alloy is electrodeposited in the pores of the film, the film is removed by etching and the acicular powder of the desired metal or alloy is produced. The high-purity acicular powder is thereby obtd. by the simple method and the shape and size thereof are easily controlled.
JP21104987A 1987-08-25 1987-08-25 Production of acicular powder Pending JPS6455307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21104987A JPS6455307A (en) 1987-08-25 1987-08-25 Production of acicular powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21104987A JPS6455307A (en) 1987-08-25 1987-08-25 Production of acicular powder

Publications (1)

Publication Number Publication Date
JPS6455307A true JPS6455307A (en) 1989-03-02

Family

ID=16599535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21104987A Pending JPS6455307A (en) 1987-08-25 1987-08-25 Production of acicular powder

Country Status (1)

Country Link
JP (1) JPS6455307A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003027283A (en) * 2001-07-09 2003-01-29 Nippon Light Metal Co Ltd Surface treatment method for aluminum material and surface treated aluminum material
JP2003027284A (en) * 2001-07-09 2003-01-29 Nippon Light Metal Co Ltd Surface treatment method for aluminum material and surface treated aluminum material
US8709192B2 (en) 2005-04-15 2014-04-29 Nitto Denko Corporation Protective cover sheet comprising a UV-absorbing layer for a polarizer plate and method of making the same
CN104313665A (en) * 2014-11-10 2015-01-28 沈阳理工大学 Method of increasing content of magnetic powder in magnesium alloy micro-arc oxidation membrane

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003027283A (en) * 2001-07-09 2003-01-29 Nippon Light Metal Co Ltd Surface treatment method for aluminum material and surface treated aluminum material
JP2003027284A (en) * 2001-07-09 2003-01-29 Nippon Light Metal Co Ltd Surface treatment method for aluminum material and surface treated aluminum material
US8709192B2 (en) 2005-04-15 2014-04-29 Nitto Denko Corporation Protective cover sheet comprising a UV-absorbing layer for a polarizer plate and method of making the same
CN104313665A (en) * 2014-11-10 2015-01-28 沈阳理工大学 Method of increasing content of magnetic powder in magnesium alloy micro-arc oxidation membrane

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