SU222109A1 - CHEMICAL NICKELING METHOD - Google Patents

CHEMICAL NICKELING METHOD

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Publication number
SU222109A1
SU222109A1 SU839555A SU839555A SU222109A1 SU 222109 A1 SU222109 A1 SU 222109A1 SU 839555 A SU839555 A SU 839555A SU 839555 A SU839555 A SU 839555A SU 222109 A1 SU222109 A1 SU 222109A1
Authority
SU
USSR - Soviet Union
Prior art keywords
nickel
solution
hypophosphite
chemical nickeling
chemical
Prior art date
Application number
SU839555A
Other languages
Russian (ru)
Original Assignee
В. И. Лататуев, А. Д. Денисов , О. Л. Пешков
Publication of SU222109A1 publication Critical patent/SU222109A1/en

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Description

Известны способы химического никелировани  в растворах, содержащих по меньшей мере два компонента, - растворимую никелевую соль и гипофосфит натри  или кальци .Known methods for chemical nickel plating in solutions containing at least two components are soluble nickel salt and sodium or calcium hypophosphite.

Предлагаемый способ позвол ет производить химическое никелирование в растворе, содержащем только один компонент - гипофосфит Никел  в количестве 10-15 г/л. При этом повыщаетс  стабильность раствора к упрощаетс  его корректировка.The proposed method allows chemical nickel plating in a solution containing only one component, nickel hypophosphite, in an amount of 10-15 g / l. This increases the stability of the solution and makes its adjustment easier.

Способ состоит в том, что осаждение никел  производ т при рН 5,0-5,5 и температуре 94-96°С.The method consists in that the deposition of nickel is carried out at a pH of 5.0-5.5 and a temperature of 94-96 ° C.

Скорость Осаждени  12-14 мк/час при толщине покрыти  5-10 мк. и пористости 1 - 2 поры на 1 слгз. Количество фосфора в никелевом покрытии около 0,2%.The sedimentation rate is 12-14 microns / hour with a coating thickness of 5-10 microns. and porosity 1 - 2 pores to 1 sgls. The amount of phosphorus in the nickel coating is about 0.2%.

Гипофосфит никел  готов т взаимодействием растворов сульфата никел  € гипофосфатом кальци , причем гипофосфит никел  долгое врем  может хранитьс  в виде концентрированного раствора. рН раствора корректируют разбавленным раствором (10-15 г/л) едкого натра, едкого кали или гидроокиси аммони  в течение всего процесса осаждени  при перемещивании. Одновременно (в случае непрерывного процесса) добавл ют гипофосфит никел  дл  поддержани  концентрации этой соли в оптимальных интервалах.Nickel hypophosphite is prepared by reacting nickel sulfate solutions with calcium hypophosphate, and nickel hypophosphite can be stored as a concentrated solution for a long time. The pH of the solution is adjusted with a dilute solution (10–15 g / l) of caustic soda, caustic potash, or ammonium hydroxide during the whole precipitation process during transfer. At the same time (in the case of a continuous process), nickel hypophosphite is added to maintain the concentration of this salt at optimal intervals.

Детали из меди никелируют только в контакте с железными.Parts made of copper are nickel-plated only in contact with iron.

10ten

Предмет изобретени Subject invention

Способ химического никелировани  в растворе , содержащем в качестве восстановител  ионы гипоф.осфита, отличающийс  тем, что, с целью повышени  стабильности раствора и упрощени  его корректировки, осаждение никел  производ т из раствора, содержащего гипофосфит никел  в количестве 1-0-15 и ироцесс ведут при рН 5,0-5,5 и температуре 94-96°С.A method of chemical nickel plating in a solution containing hypophonic phosphite ions as a reducing agent, characterized in that, in order to increase the stability of the solution and simplify its adjustment, nickel is deposited from an amount of 1-0-15 containing nickel hypophosphite and at pH 5.0-5.5 and a temperature of 94-96 ° C.

SU839555A CHEMICAL NICKELING METHOD SU222109A1 (en)

Publications (1)

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SU222109A1 true SU222109A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2572914C2 (en) * 2014-04-09 2016-01-20 Акционерное общество "Научно-исследовательский институт микроприборов-К"(АО "НИИМП-К") Method for depositing nickel-phosphorus coating on metal surfaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2572914C2 (en) * 2014-04-09 2016-01-20 Акционерное общество "Научно-исследовательский институт микроприборов-К"(АО "НИИМП-К") Method for depositing nickel-phosphorus coating on metal surfaces

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