SU1582597A1 - Method of preparing sealing coating of transducers - Google Patents

Method of preparing sealing coating of transducers

Info

Publication number
SU1582597A1
SU1582597A1 SU4441543/05A SU4441543A SU1582597A1 SU 1582597 A1 SU1582597 A1 SU 1582597A1 SU 4441543/05 A SU4441543/05 A SU 4441543/05A SU 4441543 A SU4441543 A SU 4441543A SU 1582597 A1 SU1582597 A1 SU 1582597A1
Authority
SU
USSR - Soviet Union
Prior art keywords
composition
transducer
coating
concentration
ultrasonic field
Prior art date
Application number
SU4441543/05A
Other languages
Russian (ru)
Inventor
А.Л. Шамраков
Л.В. Кулакова
А.Н. Бобрышев
Original Assignee
А.Л. Шамраков
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 А.Л. Шамраков filed Critical А.Л. Шамраков
Priority to SU4441543/05A priority Critical patent/SU1582597A1/en
Application granted granted Critical
Publication of SU1582597A1 publication Critical patent/SU1582597A1/en

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Abstract

FIELD: sealing coatings. SUBSTANCE: preliminary clarified 20-25% solution of polymethylsilazane in aromatic hydrocarbon solvent at concentration 5-10 wt.-% as 100 wt.-% polymethylphenylsiloxane and 0.04 wt.-% γ-aminopropyltriethoxysilane (АГМ-9 product) is added to the solution of polymethylphenylsiloxane (varnish KO-921) in aromatic hydrocarbon solvent. Concentration of composition is brought about up to 15-20 wt.-% and treated with ultrasonic field at frequency 15-25 kHz for 2-3 min and transducer is placed into composition. Then composition is treated together with transducer by ultrasonic field for 2-3 min, concentration of composition is increased up to 30-35 wt.-% by addition of undiluted composition followed by treatment by ultrasonic field again for 3-6 min. Transducer is removed and coating is hardened at natural conditions for 24-36 hr. Invention ensures to obtain cold hardening coating working under conditions of cyclic increased temperatures action there are no defects after 50 cycles of heating transducer with coating up to 250 C and cooling up to the room temperature, insulation resistance is above 1 MOhm. EFFECT: enhanced quality of coating. 1 tbl
SU4441543/05A 1988-04-04 1988-04-04 Method of preparing sealing coating of transducers SU1582597A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4441543/05A SU1582597A1 (en) 1988-04-04 1988-04-04 Method of preparing sealing coating of transducers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4441543/05A SU1582597A1 (en) 1988-04-04 1988-04-04 Method of preparing sealing coating of transducers

Publications (1)

Publication Number Publication Date
SU1582597A1 true SU1582597A1 (en) 1995-11-20

Family

ID=60529359

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4441543/05A SU1582597A1 (en) 1988-04-04 1988-04-04 Method of preparing sealing coating of transducers

Country Status (1)

Country Link
SU (1) SU1582597A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7138090B2 (en) 2003-04-11 2006-11-21 Therm-O-Disc, Incorporated Vapor sensor and materials therefor
US7645422B2 (en) 2003-04-11 2010-01-12 Therm-O-Disc, Incorporated Vapor sensor and materials therefor
US7708947B2 (en) 2005-11-01 2010-05-04 Therm-O-Disc, Incorporated Methods of minimizing temperature cross-sensitivity in vapor sensors and compositions therefor
US8012420B2 (en) 2006-07-18 2011-09-06 Therm-O-Disc, Incorporated Robust low resistance vapor sensor materials

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7138090B2 (en) 2003-04-11 2006-11-21 Therm-O-Disc, Incorporated Vapor sensor and materials therefor
US7645422B2 (en) 2003-04-11 2010-01-12 Therm-O-Disc, Incorporated Vapor sensor and materials therefor
US7708947B2 (en) 2005-11-01 2010-05-04 Therm-O-Disc, Incorporated Methods of minimizing temperature cross-sensitivity in vapor sensors and compositions therefor
US8012420B2 (en) 2006-07-18 2011-09-06 Therm-O-Disc, Incorporated Robust low resistance vapor sensor materials
US8105538B2 (en) 2006-07-18 2012-01-31 Therm-O-Disc Incorporated Robust low resistance vapor sensor materials

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