JPS5523089A - Glass for ultrasonic delay line - Google Patents

Glass for ultrasonic delay line

Info

Publication number
JPS5523089A
JPS5523089A JP7434279A JP7434279A JPS5523089A JP S5523089 A JPS5523089 A JP S5523089A JP 7434279 A JP7434279 A JP 7434279A JP 7434279 A JP7434279 A JP 7434279A JP S5523089 A JPS5523089 A JP S5523089A
Authority
JP
Japan
Prior art keywords
glass
temp
time
delay line
pbo
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
JP7434279A
Other languages
Japanese (ja)
Other versions
JPS5542947B2 (en
Inventor
Yoshiyuki Asahara
Tetsuo Izumitani
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.)
Hoya Corp
Original Assignee
Hoya Corp
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 Hoya Corp filed Critical Hoya Corp
Priority to JP7434279A priority Critical patent/JPS5523089A/en
Publication of JPS5523089A publication Critical patent/JPS5523089A/en
Publication of JPS5542947B2 publication Critical patent/JPS5542947B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Glass Compositions (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE: To provide the title glass having low viscosity, stable in melting and inducing little change in temp. coefficient and temp. characteristics of delay time at around room temp. with the passage of time by blending SiO2, PbO, B2O3 and K2O in a specified wt. ratio.
CONSTITUTION: SiO2 40W53.5 wt%, PbO 40.1W45%, B2O3 5W10% and K2O 5W8% are mixed. 0W1.5% of Al2O3 may be added together with 0W0.5% of As2O3 and Sb2O3 as a clarifier to further enhance the chemical durability and stability. The mixt. is then melted at about 1380°C, agitated at 1300W1100°C, and slowly cooled to obtain glass for an ultrasonic delay line which glass exhibits a long delay time, has a temp. coefficient below 2×10-6/°C at -10W60°C, undergoes little change with the passage of time, and is stable to devitrification.
COPYRIGHT: (C)1980,JPO&Japio
JP7434279A 1979-06-13 1979-06-13 Glass for ultrasonic delay line Granted JPS5523089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7434279A JPS5523089A (en) 1979-06-13 1979-06-13 Glass for ultrasonic delay line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7434279A JPS5523089A (en) 1979-06-13 1979-06-13 Glass for ultrasonic delay line

Publications (2)

Publication Number Publication Date
JPS5523089A true JPS5523089A (en) 1980-02-19
JPS5542947B2 JPS5542947B2 (en) 1980-11-04

Family

ID=13544346

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7434279A Granted JPS5523089A (en) 1979-06-13 1979-06-13 Glass for ultrasonic delay line

Country Status (1)

Country Link
JP (1) JPS5523089A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898083A (en) * 1981-08-10 1983-06-10 チエスコスロベンスカ・アカデミ−・ベツド Apparatus for handling low and high viscosity flowable medii
JPS62278143A (en) * 1986-05-26 1987-12-03 Hoya Corp Glass for ultrasonic delay line
JPH0491580U (en) * 1990-12-27 1992-08-10
JPH04232187A (en) * 1990-07-27 1992-08-20 David Stanley Fenton Guide guard member assembly for caterpillar car

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0114095Y2 (en) * 1980-03-28 1989-04-25
JPS59187921U (en) * 1983-05-31 1984-12-13 三菱農機株式会社 riding agricultural machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898083A (en) * 1981-08-10 1983-06-10 チエスコスロベンスカ・アカデミ−・ベツド Apparatus for handling low and high viscosity flowable medii
JPS633590B2 (en) * 1981-08-10 1988-01-25 Chekosurobensuka Akademii Bedo
JPS62278143A (en) * 1986-05-26 1987-12-03 Hoya Corp Glass for ultrasonic delay line
JPH04232187A (en) * 1990-07-27 1992-08-20 David Stanley Fenton Guide guard member assembly for caterpillar car
JPH0491580U (en) * 1990-12-27 1992-08-10

Also Published As

Publication number Publication date
JPS5542947B2 (en) 1980-11-04

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