JPS57103107A - Duplicate die for information recording carrier - Google Patents

Duplicate die for information recording carrier

Info

Publication number
JPS57103107A
JPS57103107A JP17826480A JP17826480A JPS57103107A JP S57103107 A JPS57103107 A JP S57103107A JP 17826480 A JP17826480 A JP 17826480A JP 17826480 A JP17826480 A JP 17826480A JP S57103107 A JPS57103107 A JP S57103107A
Authority
JP
Japan
Prior art keywords
nickel
layer
electroless
plating layer
mother
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
JP17826480A
Other languages
Japanese (ja)
Inventor
Yoshihiro Okino
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP17826480A priority Critical patent/JPS57103107A/en
Publication of JPS57103107A publication Critical patent/JPS57103107A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Abstract

PURPOSE:To increase the hardness of the surface layer of a stamper by using an alloy layer of nickel and phosphorus or boron by an electroless plating method as the surface layer. CONSTITUTION:On a mother 20, an electroless nickel-plating layer 21 is formed and on it, a nickel electroforming layer 22 is formed by an ordinary method, thus forming the mother 20 and electroless nickel-plating layer 22. Then, the mother 20 and eletroless nickel-plating layer 21 are peeled mutually to obtain a duplicate die consisting of the electroless nickel-plating layer 21 and nickel- electroforming layer 22, i.e. a stamper 23. A nickel electroless solution 2 generally consists of 20g/l nickel sulfate, 25g/l sodium hypophosphite, and 0.5g/l organic acid, and the dipping is carried out at 80 deg.C liquid temperature for 20min to form the electroless nickel-plating layer 21 with 10mum thickness. This is treated thermally to obtain 1,100 Vickers hardness.
JP17826480A 1980-12-16 1980-12-16 Duplicate die for information recording carrier Pending JPS57103107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17826480A JPS57103107A (en) 1980-12-16 1980-12-16 Duplicate die for information recording carrier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17826480A JPS57103107A (en) 1980-12-16 1980-12-16 Duplicate die for information recording carrier

Publications (1)

Publication Number Publication Date
JPS57103107A true JPS57103107A (en) 1982-06-26

Family

ID=16045442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17826480A Pending JPS57103107A (en) 1980-12-16 1980-12-16 Duplicate die for information recording carrier

Country Status (1)

Country Link
JP (1) JPS57103107A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020042418A (en) * 2000-11-30 2002-06-05 기타지마 요시토시 Method of reproducing a die and property check method of the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313580A (en) * 1976-07-21 1978-02-07 Maruho Hatsujiyou Kougiyou Kk Surgical operational clip and opening or closing forceps therefor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313580A (en) * 1976-07-21 1978-02-07 Maruho Hatsujiyou Kougiyou Kk Surgical operational clip and opening or closing forceps therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020042418A (en) * 2000-11-30 2002-06-05 기타지마 요시토시 Method of reproducing a die and property check method of the same

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