JPS56120547A - Manufacture of monitoring window - Google Patents

Manufacture of monitoring window

Info

Publication number
JPS56120547A
JPS56120547A JP2304480A JP2304480A JPS56120547A JP S56120547 A JPS56120547 A JP S56120547A JP 2304480 A JP2304480 A JP 2304480A JP 2304480 A JP2304480 A JP 2304480A JP S56120547 A JPS56120547 A JP S56120547A
Authority
JP
Japan
Prior art keywords
ring
jig
glass
bonded
monitoring window
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
JP2304480A
Other languages
Japanese (ja)
Other versions
JPS5924746B2 (en
Inventor
Yusei Sakamoto
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon 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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP55023044A priority Critical patent/JPS5924746B2/en
Publication of JPS56120547A publication Critical patent/JPS56120547A/en
Publication of JPS5924746B2 publication Critical patent/JPS5924746B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

PURPOSE: To manufacture a monitoring window with high transparency by seal bonding a transparent glass plate to an external metal ring by melting on a seal bonding jig made of graphite, cooling the plate once, and heating it again to the m.p. of the glass or above to smoothen the glass surface contacting with the jig.
CONSTITUTION: External metal ring 1 is mounted on seal bonding jig 3 made of graphite, and transparent glass disc 2' is placed in ring 1. By heating them to about 950W1,020°C in a neutral or weakly reducing atmosphere, disc 2' is melted and bonded to ring 1. Ring 1 with disc 2' bonded is taken out of the heating furnace, once cooled, heated to about 950W1,020°C again, and cooled to obtain a monitoring window with high transparency. Glass 2 bonded to ring 1 has smooth free surface 2a and smooth jig 3 side face 2c.
COPYRIGHT: (C)1981,JPO&Japio
JP55023044A 1980-02-25 1980-02-25 How to manufacture surveillance windows Expired JPS5924746B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55023044A JPS5924746B2 (en) 1980-02-25 1980-02-25 How to manufacture surveillance windows

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55023044A JPS5924746B2 (en) 1980-02-25 1980-02-25 How to manufacture surveillance windows

Publications (2)

Publication Number Publication Date
JPS56120547A true JPS56120547A (en) 1981-09-21
JPS5924746B2 JPS5924746B2 (en) 1984-06-12

Family

ID=12099448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55023044A Expired JPS5924746B2 (en) 1980-02-25 1980-02-25 How to manufacture surveillance windows

Country Status (1)

Country Link
JP (1) JPS5924746B2 (en)

Also Published As

Publication number Publication date
JPS5924746B2 (en) 1984-06-12

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