PL93006B2 - - Google Patents
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- PL93006B2 PL93006B2 PL171351A PL17135174A PL93006B2 PL 93006 B2 PL93006 B2 PL 93006B2 PL 171351 A PL171351 A PL 171351A PL 17135174 A PL17135174 A PL 17135174A PL 93006 B2 PL93006 B2 PL 93006B2
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- PL
- Poland
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- weight
- solution
- acetic acid
- seignette
- glacial acetic
- Prior art date
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Description
Przedmiotem wynalazku jest srodek do chemicznego wyblyszczania, zwlaszcza tasm mosieznych o zawartosci miedzi 63 i 68% wagowych. Chemiczne wyblyszczanie znajduje zastosowanie tam, gdzie nie jest mozliwe elektropolerowanie, a wiec w przypadku wyrobów o duzej powierzchni, a takze w ciaglych procesach obróbki. « Znane roztwory chromianowe, albo roztwory z dodatkiem nadtlenku wodoru lub nadsiarczanu amonu, posiadaja ograniczone zastosowanie ze wzgledu na nietrwale i kosztowne substancje wprowadzane do roztworu.The subject of the invention is a chemical polishing agent, especially for brass strips with a copper content of 63 and 68% by weight. Chemical polishing finds application where it is not electropolishing possible, i.e. for products with a large surface, as well as in continuous processes machining. « Known chromate solutions, or solutions with the addition of hydrogen peroxide or ammonium persulfate, they are of limited use due to the unstable and costly substances introduced into the solution.
Inne znane srodki to roztwory zawierajace kwas azotowy, siarkowy i solny. Jednak, wydzielajace sie trujace tlenki azotu sa szkodliwe i w zwiazku z tym roztwory te sa rzadziej stosowane.Other known agents are solutions containing nitric, sulfuric and hydrochloric acid. However, emitting themselves poisonous nitrogen oxides are harmful and therefore these solutions are used less frequently.
Opisane w literaturze przez H. Silmana („Chemische und Galvanische Oberziige", r. 1952, str. 86) kapiel wodna do wyblyszczania, zawierajaca sole zelazowe, sklada sie z 9% wagowych siarczanu zelazowego, 0,1% wagowych soH Seignette'a, 3% wagowych kwasu octowego i 0,5% wagowych kwasu cytrynowego. Kapiel ta dziala w temperaturze 25°C. Kwas cytrynowy jest drogim skladnikiem tego roztworu a jego dodatek nie wplywa, w zakresie bledu pomiarowego, na polysk i zywotnosc roztworu.Described in the literature by H. Silman ("Chemische und Galvanische Oberziige", 1952, p. 86) bath water for polishing, containing iron salts, consists of 9% by weight of ferric sulphate, 0.1% by weight of SOH Seignette, 3% by weight of acetic acid and 0.5% by weight of citric acid. This bath works at a temperature of 25 ° C. Citric acid is an expensive ingredient in this solution and its addition is not affects, in terms of the measuring error, the gloss and service life of the solution.
Istota wynalazku jest roztwór do chemicznego wyblyszczania, zwlaszcza tasm mosieznych, zawierajacy w jednym litrze wody 4,5^-9,5% wagowych bezwodnego siarczanu zelazowego, 3,0—6,0% wagowych lodowatego kwasu octowego i:.0,1—1,0% wagowych soli Seignette'a.The essence of the invention is a solution for chemical polishing, especially brass strips, containing in one liter of water 4.5-9.5% by weight of anhydrous iron sulphate, 3.0-6.0% by weight of glacial acetic acid and: 0.1-1.0 wt% Seignette salt.
Srodek wedlug wynalazku, jest trwalym i tanim srodkiem wyblyszczajacym, który jednoczesnie nie wytrawia powierzchni metalu. Roztwór ten podwyzsza poziom wyblyszczenia powierzchni o okolo 30%, w porównaniu z wartoscia poczatkowa, przy czym stopien odbicia swiatla jest nie mniejszy niz 70%.The agent according to the invention is a durable and cheap rinse aid, which at the same time does not etches the surface of the metal. This solution increases the gloss level by about 30%, compared to the initial value, the degree of light reflection is not less than 70%.
Przyklad. Do roztworu wodnego zawierajacego 3% wagowych lodowatego kwasu octowego, dodaje sie 4,5% wagowych bezwodnego siarczanu zelazowego oraz 0,1% wagowych soli Seignette'a. Nastepnie skladniki intensywnie miesza sie. Tasme mosiezna, po wstepnym usunieciu zgorzeliny w dwumolowym roztworze kwasu siarkowego, zanurza sie w roztworze wyblyszczajacym na okres 5 minut. Zywotnosc srodka wynosi: dla mosiadzu M63 okolo 0,6 m2 na litr roztworu, a dla M68 okolo 0,5 m2 na litr roztworu. »2 93 006Example. To an aqueous solution containing 3% by weight of glacial acetic acid is added 4.5 wt.% Anhydrous ferric sulfate and 0.1 wt.% Seignette salt. Then the ingredients mixed intensively. Brass tape, after initial descaling in a two molar acid solution sulfuric acid, immersed in the rinse aid solution for 5 minutes. The lifetime of the measure is: for Brass M63 about 0.6 m2 per liter of solution, and for M68 about 0.5 m2 per liter of solution. »2 93 006
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL171351A PL93006B2 (en) | 1974-05-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL171351A PL93006B2 (en) | 1974-05-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL93006B1 PL93006B1 (en) | 1977-05-30 |
| PL93006B2 true PL93006B2 (en) | 1977-05-31 |
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