JPS6452622A - Mold member for molding optical element - Google Patents

Mold member for molding optical element

Info

Publication number
JPS6452622A
JPS6452622A JP20914287A JP20914287A JPS6452622A JP S6452622 A JPS6452622 A JP S6452622A JP 20914287 A JP20914287 A JP 20914287A JP 20914287 A JP20914287 A JP 20914287A JP S6452622 A JPS6452622 A JP S6452622A
Authority
JP
Japan
Prior art keywords
layer
base metal
tantalum
mold
tantalum nitride
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.)
Granted
Application number
JP20914287A
Other languages
Japanese (ja)
Other versions
JPH0372018B2 (en
Inventor
Makoto Kameyama
Masaaki Yokota
Tetsuo Kuwabara
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP20914287A priority Critical patent/JPS6452622A/en
Publication of JPS6452622A publication Critical patent/JPS6452622A/en
Publication of JPH0372018B2 publication Critical patent/JPH0372018B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06—Construction of plunger or mould
    • C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
    • C03B11/084—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor
    • C03B11/086—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor of coated dies
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/02—Press-mould materials
    • C03B2215/08—Coated press-mould dies
    • C03B2215/10—Die base materials
    • C03B2215/11—Metals
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/02—Press-mould materials
    • C03B2215/08—Coated press-mould dies
    • C03B2215/14—Die top coat materials, e.g. materials for the glass-contacting layers
    • C03B2215/22—Non-oxide ceramics
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/02—Press-mould materials
    • C03B2215/08—Coated press-mould dies
    • C03B2215/30—Intermediate layers, e.g. graded zone of base/top material
    • C03B2215/32—Intermediate layers, e.g. graded zone of base/top material of metallic or silicon material

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Vapour Deposition (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

PURPOSE:To contrive prolongation of mold life and reduction in cavity cost, by providing a tantalum layer as a lower layer on a mold base metal and forming a tantalum nitride coating layer on the surface thereof. CONSTITUTION:A cavity base metal 30 of a super hard alloy or sintered SiC, etc., is subjected to machining, such as cutting, grinding and polishing, to finish the molding surface into a specific surface accuracy. A tantalum layer 31 and tantalum nitride layer 32 are successively formed on the surface on the molding surface side of the base metal 30 by a physical vapor deposition (PVD) or chemical vapor deposition (CVD) method. In the process, the tantalum content in the tantalum nitride layer 32 is 20-80atom.%. Thereby melt adhesion to glass is prevented with hardly any deterioration in accuracy in repeated press molding. As a result, mold life is prolonged. Since the mold base metal 30 is a readily machinable material, mold cost is reduced.
JP20914287A 1987-08-25 1987-08-25 Mold member for molding optical element Granted JPS6452622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20914287A JPS6452622A (en) 1987-08-25 1987-08-25 Mold member for molding optical element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20914287A JPS6452622A (en) 1987-08-25 1987-08-25 Mold member for molding optical element

Publications (2)

Publication Number Publication Date
JPS6452622A true JPS6452622A (en) 1989-02-28
JPH0372018B2 JPH0372018B2 (en) 1991-11-15

Family

ID=16567999

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20914287A Granted JPS6452622A (en) 1987-08-25 1987-08-25 Mold member for molding optical element

Country Status (1)

Country Link
JP (1) JPS6452622A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1655269A1 (en) * 2003-05-22 2006-05-10 Japan Science and Technology Corporation Method of fabricating mold for glass press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1655269A1 (en) * 2003-05-22 2006-05-10 Japan Science and Technology Corporation Method of fabricating mold for glass press
EP1655269A4 (en) * 2003-05-22 2009-01-14 Japan Science & Tech Corp Method of fabricating mold for glass press

Also Published As

Publication number Publication date
JPH0372018B2 (en) 1991-11-15

Similar Documents

Publication Publication Date Title
EP0709353A3 (en) Hard composite material for tools
ZA847401B (en) Disordered coating and method
EP0379597A4 (en) Mold material for molding optical parts and process for its production
EP0567124A3 (en) Bonding tool having diamond head and method of manufacturing the same
EP0136162B1 (en) Improved moulding tool and method
IE781439L (en) Sintered metal articles
US6255007B1 (en) Laminate system, a process for the production thereof and use thereof
MY100819A (en) Process for making metal surfaces hydrophilic and novel products thus produced
JPS6452622A (en) Mold member for molding optical element
EP0385283A3 (en) Process for coating hard metal substrates, and hard metal tool produced by the process
CN1161673C (en) Decorative part being as part of clock
JPS6452623A (en) Mold member for molding optical element
JPS6452624A (en) Mold member for molding optical element
JP2956109B2 (en) Manufacturing method of precision mold
JP2583581B2 (en) Mold for optical element molding
JPH0361617B2 (en)
JP3605774B2 (en) Glass press mold
KR850004243A (en) Mold for direct press molding of optical glass elements
JPS6440225A (en) Manufacture of metal mold for molding
JPS6452621A (en) Production of optical element
JPS6450227A (en) Magnetic recording medium
GB2242426A (en) Mould for glass moulding
JPS55131446A (en) Composite surface coating tool
Perry Aspects of the Characterisation of Hard Coatings
Masuda et al. Diamond-Covered Member and Production Thereof