SU126299A1 - Method for determining the porosity of non-magnetic metallic coatings on articles made of magnetic materials - Google Patents
Method for determining the porosity of non-magnetic metallic coatings on articles made of magnetic materialsInfo
- Publication number
- SU126299A1 SU126299A1 SU550386A SU550386A SU126299A1 SU 126299 A1 SU126299 A1 SU 126299A1 SU 550386 A SU550386 A SU 550386A SU 550386 A SU550386 A SU 550386A SU 126299 A1 SU126299 A1 SU 126299A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- coating
- porosity
- magnetic
- determining
- articles made
- Prior art date
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
Дл определени качества металлического покрыти изделий необходимо производить контроль не только толщ,ины, но и пористости покрыти .To determine the quality of the metal coating of the products, it is necessary to control not only the thicknesses, but also the porosity of the coating.
Предлагаемый способ определени пористости покрытий отличаете; тем, что,, с целью устранени вли ни на результаты измерени как толщины , так и химического состава и физических свойств покрыти , измер ют толщину покрыти индукционным измерителем при питании его током промышленной частоты. Затем, в той же точке покрыти , при питании измерител током высокой частоты измер ют пористость покрыти . Плотность покрыти определ етс в зависимости от изменени вихревых токов, возбуждаемых в исследуемом покрытии.The proposed method for determining the porosity of coatings is different; In order to eliminate the influence on the measurement results of both the thickness and chemical composition and physical properties of the coating, the thickness of the coating is measured by an induction meter when it is powered by a current of industrial frequency. Then, at the same point of the coating, when the meter is powered by a high frequency current, the porosity of the coating is measured. The density of the coating is determined by the change in eddy currents induced in the test coating.
Прибор дл осуществлени способа, принципиальна схема которого дана на чертеже, выполнен на основе двух электрически св занных между собой дифференциальных схем измерени толщины и плотности покрыти . Датчик дл измерени толщины покрыти , устанавливаемый на поверхность исследуемого покрыти /, состоит из первичной 2 и вторичной 3 катушек, расположенных на общем ферромагнитном сердечнике-магнитопроводе 4. В обмотку первичной катушки подаетс напр жение через трансформатор 5; вторична катушка выполн ет измерительные функции. Датчиком схемы дл измерени плотности покрыти вл етс трансформатор с разомкнутым магнитопроводом; напр жение на вторичной обмотке трансформатора зависит от величины немагнитного зазора между сердечником н деталью с исследуемым покрытием. Обе дифференциальные схемы снабжены компенсационными контурами 6 дл -внесени в показани прибора поправок на химический состав покрыти и физические свойства основного металла детали.The apparatus for carrying out the method, the schematic diagram of which is given in the drawing, is made on the basis of two differential circuits measuring the thickness and density of the coating electrically connected to each other. A sensor for measuring the thickness of the coating installed on the surface of the investigated coating / consists of a primary 2 and a secondary 3 coils located on a common ferromagnetic core-magnetic core 4. A voltage is applied to the winding of the primary coil through a transformer 5; the secondary coil performs measurement functions. The sensor of the circuit for measuring the density of the coating is a transformer with an open magnetic circuit; The voltage on the secondary winding of the transformer depends on the magnitude of the non-magnetic gap between the core and the part with the test coating. Both differential circuits are equipped with compensation circuits 6 for correcting the chemical composition of the coating and the physical properties of the base metal of the part into the instrument readings.
Переключатель 7 служит дл переключени прибора в положение «измерение толщины -«измерение плотности. Соответственно и указывающий прибор 8 имеет две шкалы: одну дл отсчета толш;ины, другую дл отсчета плотности покрыти .Switch 7 serves to switch the instrument to the “thickness measurement -” density measurement position. Accordingly, the pointing device 8 has two scales: one for counting thicknesses, another, for counting the density of the coating.
Предмет изобретени Subject invention
Способ определени пористости немагнитных металлических покрытий на издели х из магнитных материалов, отличающийс тем, что, с целью устранени вли ни на результаты измерени как толщины, так и -химического состава и физических свойств покрыти , измер ют толщину покрыти индукционным измерителем при питании его током промьнпленной частоты, настраивают измеритель в зависимости от измеренной толщины покрыти и в той же точке покрыти при питании измерител током высокой частоты измер ют пористость покрыти .A method for determining the porosity of non-magnetic metallic coatings on articles made of magnetic materials, characterized in that, in order to eliminate the influence on the measurement results of both the thickness and the chemical composition and physical properties of the coating, the thickness of the coating is measured by an induction meter when it is powered by industrial current frequency, adjust the meter depending on the measured thickness of the coating and at the same point of the coating, when the meter is fed with high frequency current, the coating porosity is measured.
изнерение толщиныthickness loss
измерение 7 плотности7 density measurement
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU550386A SU126299A1 (en) | 1956-04-07 | 1956-04-07 | Method for determining the porosity of non-magnetic metallic coatings on articles made of magnetic materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU550386A SU126299A1 (en) | 1956-04-07 | 1956-04-07 | Method for determining the porosity of non-magnetic metallic coatings on articles made of magnetic materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU126299A1 true SU126299A1 (en) | 1959-11-30 |
Family
ID=48397610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU550386A SU126299A1 (en) | 1956-04-07 | 1956-04-07 | Method for determining the porosity of non-magnetic metallic coatings on articles made of magnetic materials |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU126299A1 (en) |
-
1956
- 1956-04-07 SU SU550386A patent/SU126299A1/en active
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