SU911245A1 - Device for determination of coating-to-base adhesion strength - Google Patents

Device for determination of coating-to-base adhesion strength Download PDF

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Publication number
SU911245A1
SU911245A1 SU802966190A SU2966190A SU911245A1 SU 911245 A1 SU911245 A1 SU 911245A1 SU 802966190 A SU802966190 A SU 802966190A SU 2966190 A SU2966190 A SU 2966190A SU 911245 A1 SU911245 A1 SU 911245A1
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SU
USSR - Soviet Union
Prior art keywords
substrate
coating
pin
adhesion strength
determination
Prior art date
Application number
SU802966190A
Other languages
Russian (ru)
Inventor
Вадим Серафимович Лоскутов
Григорий Павлович Лазаренко
Анна Ивановна Еремина
Вячеслав Иосвич Гаврилов
Original Assignee
Предприятие П/Я В-8058
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 Предприятие П/Я В-8058 filed Critical Предприятие П/Я В-8058
Priority to SU802966190A priority Critical patent/SU911245A1/en
Application granted granted Critical
Publication of SU911245A1 publication Critical patent/SU911245A1/en

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Description

Изобретение относитс  к испытательной технике, а именно к уйтройствам дл  определени  .прочностит сцеплени  покрытий с подложками. Известно устройство дл  определе ни  прочности сцеплени  покрыти  с подложкой, содержащее подложку дл  нанесени  покрыти  с цилиндрическим отверстием и установленный в отверс тии подложки заподлицо с ней штифт Недостатком известного устройств  вл етс  низка  точность определени прочности сцеплени , так как .при на несении испытуемого покрыти  на под ложку и штифт, покрытие гфоникает в зазор между ними и увеличивает площадь сцеплени .Наиболее близким к изобретению по технической сущности и достигаемому результату  вл етс  устройство дл  определени  прочности сцеплени  покрыти  с подложкой, содержащее подложку дл  нанесени  покрыти , имеющую цилиндрическое отверстие, и установленный в отверстии подложки заподлицо с ней штифт, выполненный в виде цилиндрического стержн  с резьбой и усеченной конической головкой . В зазоре между головкой штифта и подложкой установлена коническа  шайба, предотвращающа  попадание покрыт и  на боковые стенки отверсти  подложки и на боковую поверхность штифта 2. Недостатком этого устройства  вл етс  низка  точность определени  прочности сцеплени  покрыти  с подложкой при испытании,так как после нанесени  испытуемого покрыти  на подложку и головку штифта-и удалени  конической шайбы между штифтом и подложкой образуетс  зазор, что приводит к образованию свободного пространства под покрытием и разрушению испытуемлх покЕ лтий в этом месте. Цель изобретени  - повышение точности определени  путем исключени  зазора между подложкой и штифтом. Дл  достижени  поставленной цели Отверстие в подложке со стороны исгытуемого покрыти  имеет коническую поверхность дл  взаимодействи  с головкой штифта, а устройство снабжено упорной гайкой с конической наружной поверхностью, установленной на стержне штифта с возможностью упора в подложку со стороны, противоположной испытуемому покрытию.The invention relates to a testing technique, namely, devices for determining the strength of adhesion of coatings to substrates. A device for determining the adhesion strength of a coating to a substrate, containing a substrate for applying a coating with a cylindrical bore and mounted in an orifice of the substrate that is flush with it, is known. A disadvantage of the known devices is that the adhesion strength is poorly determined when carrying the test coating on a spoon and a pin, the coating penetrates into the gap between them and increases the area of adhesion. The devices closest to the invention in technical essence and the achieved result are To determine the strength of adhesion of the coating to the substrate, the substrate containing the coating, having a cylindrical bore, and a pin in the aperture of the substrate, made in the form of a cylindrical rod with a thread and a truncated conical head, are flush with it. A conical washer is installed in the gap between the pin head and the substrate, which prevents the ingress of the substrate and the lateral surface of the pin 2 on the side walls of the substrate. The disadvantage of this device is the low accuracy of determining the adhesion of the coating to the substrate during testing, since after applying the test coating on the substrate and the pin head and the removal of the conical washer between the pin and the substrate, a gap is formed, which leads to the formation of free space under the coating and the destruction of the test MLH Pok lty in this place. The purpose of the invention is to improve the accuracy of determination by eliminating the gap between the substrate and the pin. To achieve this goal, the hole in the substrate on the side of the coated coating has a conical surface for engagement with the pin head, and the device is equipped with a stop nut with a conical outer surface mounted on the pin shaft with the possibility of abutting the substrate on the side opposite to the test coating.

Claims (1)

Формула изобретенияClaim Устройство для определения прочности сцепления покрытия с подложкой, содержащее подложку для нанесения покрытия, имеющую цилиндрическое отверстие, и установленный в отверстии подложки заподлицо с ней штифт, выполненный в виде цилиндрического стержня с резьбой и усеченной конической головкой, отличающееся тем, что, с целью повышения точности определения путем исключения зазора между подложкой и штифтом, отверстие со стороны испытуемого покрытия имеет коническую поверхность для взаимодействия с головкой штифта, а устройство снабжено упорной гайкой с конической наружной поверхностью, установленной на стержне штифта с возможностью упора в подложку со стороны, противоположной испытуемому покрытию.A device for determining the adhesion strength of a coating with a substrate, containing a substrate for coating, having a cylindrical hole, and a pin mounted in the substrate hole, flush with it, made in the form of a cylindrical rod with a thread and a truncated conical head, characterized in that, in order to improve accuracy determination by eliminating the gap between the substrate and the pin, the hole on the side of the test coating has a conical surface for interaction with the pin head, and the device is equipped with with a pin nut with a conical outer surface mounted on the rod of the pin with the possibility of an abutment into the substrate on the side opposite to the test coating.
SU802966190A 1980-07-14 1980-07-14 Device for determination of coating-to-base adhesion strength SU911245A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU802966190A SU911245A1 (en) 1980-07-14 1980-07-14 Device for determination of coating-to-base adhesion strength

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU802966190A SU911245A1 (en) 1980-07-14 1980-07-14 Device for determination of coating-to-base adhesion strength

Publications (1)

Publication Number Publication Date
SU911245A1 true SU911245A1 (en) 1982-03-07

Family

ID=20911886

Family Applications (1)

Application Number Title Priority Date Filing Date
SU802966190A SU911245A1 (en) 1980-07-14 1980-07-14 Device for determination of coating-to-base adhesion strength

Country Status (1)

Country Link
SU (1) SU911245A1 (en)

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