SU186747A1 - METHOD FOR DETERMINING THE THICKNESS OF METAL COATINGS - Google Patents
METHOD FOR DETERMINING THE THICKNESS OF METAL COATINGSInfo
- Publication number
- SU186747A1 SU186747A1 SU1030322A SU1030322A SU186747A1 SU 186747 A1 SU186747 A1 SU 186747A1 SU 1030322 A SU1030322 A SU 1030322A SU 1030322 A SU1030322 A SU 1030322A SU 186747 A1 SU186747 A1 SU 186747A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- thickness
- determining
- coating
- film
- metal coatings
- Prior art date
Links
- 239000011248 coating agent Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- 239000010953 base metal Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Description
Известный способ онределени толщины металлических покрытий заключаетс в том, что на очищенную поверхность покрыти нанос т капл ми растворитель до обнажени основного металла (или промежуточного сло ) и по числу капель определ ют толщину покрыти . По предлагаемому способу в отличие от известного используют растворитель, образующий с покрытием защитную пленку определенной толщины, которую затем удал ют пленкорастворителем, повтор приемы до обнажени основного металла (или промежуточного сло ), что повышает точность определени толщины покрыти . Способ заключаетс в следующем. После очистки поверхности покрыти , толщину которого определ ют, на нее нанос т каплю пленкообразующего раствора, разрушающего поверхность на строго определенную глубину благодар образованию запирающей пленки, преп тствующей дальнейшему проникновению пленкообразующего раствора вглубь. После выдержки капли на изделии около полминуты ее снимают фильтровальной бумагой или ватой. Затем ватным тампоном, смоченным в пленкоснимающем растворе, удал ют образовавшуюс пленку и вытирают место определени насухо фильтровальной бумагой . На то же место нанос т новую каплю пленкообразующего раствора и повтор ют те же операции поочередно до обнажени сплошного участка основного металла. Обш.ую толщину покрыти определ ют по числу сн тых пленок до обнажени основного металла, учитыва их среднюю толпдину, посто нную дл каждого состава пленкообразующего раствора и металла покрыти . Предмет изобретени Способ опреде.тени толщины металлических покрытий, заключающийс в том, что на очищенную поверхность покрыти нанос т капл ми растворитель до обнал ени основного металла (или промежуточного сло ) и по числу капель определ ют толщину покрыти , отличающийс тем, что, с целью повышени точности определени толщины покрыти , используют растворитель, образующий с покрытием защитную пленку определенной толщины , которую затем удал ют пленкорастворителем , повтор эти приемы до обнажени основного металла (или промежуточного сло ).A known method for determining the thickness of metal coatings is that a solvent is dropped onto the cleaned surface of the coating before the base metal (or intermediate layer) is exposed and the thickness of the coating is determined by the number of drops. According to the proposed method, in contrast to the known method, a solvent is used which forms a protective film with a coating of a certain thickness, which is then removed by a film solvent, repeating the techniques until the base metal (or intermediate layer) is exposed, which improves the accuracy of the coating thickness. The method is as follows. After cleaning the surface of the coating, the thickness of which is determined, a drop of film-forming solution is applied to it, destroying the surface to a strictly defined depth due to the formation of a locking film, which prevents further penetration of the film-forming solution into the depth. After holding the drop on the product for about half a minute, it is removed with filter paper or cotton. Then, with a cotton swab moistened in a film-removing solution, remove the formed film and wipe the place of detection dry with filter paper. A new drop of film-forming solution is applied to the same place and the same operations are repeated alternately until the entire base metal is exposed. The general thickness of the coating is determined by the number of films removed prior to exposure of the base metal, taking into account their average tollopdin, constant for each composition of the film-forming solution and the metal of the coating. The subject of the invention is a method for determining the thickness of metal coatings, which consists in dropping a solvent onto a cleaned surface of the coating until the base metal (or intermediate layer) is found and determining the thickness of the coating by the number of drops, characterized in that increase the accuracy of determining the thickness of the coating; use a solvent that forms a protective film with a coating of a certain thickness, which is then removed by the film solvent; repeat these techniques until the base metal is exposed (or diate layer).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU186747A1 true SU186747A1 (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9670240B2 (en) * | 2014-05-02 | 2017-06-06 | Knu-Industry Cooperation Foundation | Cyclic phosphinate derivatives and method of preparing the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9670240B2 (en) * | 2014-05-02 | 2017-06-06 | Knu-Industry Cooperation Foundation | Cyclic phosphinate derivatives and method of preparing the same |
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