SU130760A1 - Acid solution for chemical nickel plating of aluminum and its alloys - Google Patents
Acid solution for chemical nickel plating of aluminum and its alloysInfo
- Publication number
- SU130760A1 SU130760A1 SU646578A SU646578A SU130760A1 SU 130760 A1 SU130760 A1 SU 130760A1 SU 646578 A SU646578 A SU 646578A SU 646578 A SU646578 A SU 646578A SU 130760 A1 SU130760 A1 SU 130760A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- aluminum
- alloys
- nickel plating
- acid solution
- chemical nickel
- Prior art date
Links
Landscapes
- Chemically Coating (AREA)
Description
Известные щелочные растворы дл химического никелировани СЛОЖНЫ ПО своему составу и требуют непрерывной корректировки аммиаком в процессе восстановлени . Осадки никел , получаемые из этих растворов, имеют большую пористость и -пониженную износостойкость по сравнению с покрыти ми, полученными из кислых растворов :при равных толщинах.The known alkaline solutions for chemical nickel plating are COMPLEX on their composition and require continuous adjustment with ammonia during the reduction process. Nickel precipitates obtained from these solutions have a greater porosity and lower wear resistance compared to coatings obtained from acidic solutions: at equal thicknesses.
Кроме того, ввиду наличи на поверхности алюмини окисной пленки применение щелочных растворов требует подготовки поверхности изделий путем контактного цинковани перед их никелированием.In addition, due to the presence of an oxide film on the aluminum surface, the use of alkaline solutions requires the preparation of the surface of products by contact galvanizing before they are nickel-plated.
Известные кислые растворы дл никелировани алюмини и его сплавов та-кже имеют сложный химический состав.The known acidic solutions for nickel plating of aluminum and its alloys also have a complex chemical composition.
Описываемый кислый раствор отличаетс от известных тем, что он не измен ет в процессе работы своей кислотности, не требует периодического подщелачивани , и преп тствует осаждению сплава никел : с фосфором па стали, меди, алюминии и его сплавах, а также прост по составу, позвол ет исключить цинкатную обработку и получить покрытие с малой пористостью и повышенной износостойкостью.The described acidic solution differs from the known ones in that it does not change its acidity during the operation, does not require periodic alkalization, and prevents the precipitation of the nickel alloy: with phosphorus, steel, copper, aluminum and its alloys, and is simple in composition, allowing Do not exclude zincate treatment and obtain a coating with low porosity and increased wear resistance.
В состав раствора -вход т два компонента: 15 г/л уксуснокислого никел и 13 г/л гипофосфита кальци . Рабоча температура раствора не превышает 96-98°, а кислотность (рН)-в пределах 4,1-4,3.The composition of the solution contains two components: 15 g / l of nickel acetate and 13 g / l of calcium hypophosphite. The working temperature of the solution does not exceed 96–98 °, and the acidity (pH) is within 4.1–4.3.
Никелирование ведут с одноразовым использованием раствора до полного его истощени .Nickel plating is carried out with a single use of the solution until it is completely depleted.
Дл повышени прочности сцеплени покрыти с основой после никелировани провод т термическую обработку издели при температуре 180-200° в течение 1 час.To increase the adhesion strength of the coating to the substrate, after nickel plating, the product is heat treated at a temperature of 180-200 ° C for 1 hour.
Предмет изобретени Subject invention
Кислый раствор дл химического никелировани алюмини и его сплавов, отличающийс тем, что, с целью упрощени подготовки поверхности алюмини и его сплавов перед химическим никелированием и снижени пористости покрыти , осаждение ведут из раствора, содержащего никел уксуснокислого 15,0 , гипофосфита кальци 13,0 г/..-, при температуре раствора 96-98° и рН 4,1-4,3, при этом дл повыщени сцеплени покрыти с основой, изделие подвергают термообработке при температуре 180-200° в течение 1 час.Acid solution for chemical nickel plating of aluminum and its alloys, characterized in that, in order to simplify the preparation of the surface of aluminum and its alloys before chemical nickel plating and reduce the porosity of the coating, precipitation is carried out from a solution containing nickel acetic acid 15.0, calcium hypophosphite 13.0 g (-), at a temperature of solution of 96-98 ° and a pH of 4.1-4.3, while to increase the adhesion of the coating to the substrate, the product is subjected to heat treatment at a temperature of 180-200 ° for 1 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU646578A SU130760A1 (en) | 1959-12-09 | 1959-12-09 | Acid solution for chemical nickel plating of aluminum and its alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU646578A SU130760A1 (en) | 1959-12-09 | 1959-12-09 | Acid solution for chemical nickel plating of aluminum and its alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU130760A1 true SU130760A1 (en) | 1960-11-30 |
Family
ID=48401869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU646578A SU130760A1 (en) | 1959-12-09 | 1959-12-09 | Acid solution for chemical nickel plating of aluminum and its alloys |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU130760A1 (en) |
-
1959
- 1959-12-09 SU SU646578A patent/SU130760A1/en active
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