| 摘要 |
FIELD: radio engineering; instrumentation engineering; aviation industry. SUBSTANCE: proposed method includes degreasing, washing in hot running water, washing in cold running water, sensitizing, washing in cold running, activation, washing in trap[, drying and applying metal coats; sensitizing is performed in solution of the following composition: stannous chloride, 68-72 g; potassium bichromate, 8-12 g; orthophosphoric acid (1.75 g/cu cm), 18-22 ml; sulfuric acid (1.84 g/cu cm), 48-52 ml; hydrochloric acid (1.19 g/ cu cm), 48-52 ml; distilled water, 198-200 ml; procedure is conducted at temperature of 15-25 C for 7-10 min. EFFECT: reduction of time required for process; improved quality of coats. 3 ex
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