SU60038A1 - Method of anodic oxidation of aluminum and its alloys - Google Patents

Method of anodic oxidation of aluminum and its alloys

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Publication number
SU60038A1
SU60038A1 SU822D SU822D SU60038A1 SU 60038 A1 SU60038 A1 SU 60038A1 SU 822 D SU822 D SU 822D SU 822 D SU822 D SU 822D SU 60038 A1 SU60038 A1 SU 60038A1
Authority
SU
USSR - Soviet Union
Prior art keywords
aluminum
alloys
anodic oxidation
oxidation
oxide
Prior art date
Application number
SU822D
Other languages
Russian (ru)
Inventor
А.И. Гершевич
Г.А. Зубова
Л.Е. Космиади
Н.Т. Кудрявцев
вцев Н.Т. Кудр
Original Assignee
А.И. Гершевич
Г.А. Зубова
Л.Е. Космиади
Н.Т. Кудрявцев
вцев Н.Т. Кудр
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by А.И. Гершевич, Г.А. Зубова, Л.Е. Космиади, Н.Т. Кудрявцев, вцев Н.Т. Кудр filed Critical А.И. Гершевич
Priority to SU822D priority Critical patent/SU60038A1/en
Application granted granted Critical
Publication of SU60038A1 publication Critical patent/SU60038A1/en

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Description

При соответствующей механической обработке алюмини  и ето сплавов получаетс , как иавестно, зеркальна  поверхность с высоким коэфициентом отражени  {до 80- 90%), значите ЛБН о превышающим таковой у никел , хрома- и др. и приближающимс  к коэфиц.иенту отражени  у серебра.With the appropriate machining of aluminum and aluminum alloys, a mirror surface with a high reflectivity ratio (up to 80-90%) is obtained, as in actual fact, mean LPN about nickel, chromium, etc., and approaching silver reflection coefficient.

Однако отражательна  способность с течением времени снижаетс , поверхность тускнеет. Получение прозрачного стойкого оксида на зеркальной поверхности имеет большое значение дл  получени  зеркал с высоким коэфициентОМ отражени  из таких доступных материалов, как алюминий и его сплавы.However, the reflectivity decreases with time and the surface fades. The production of a transparent, resistant oxide on the mirror surface is of great importance for the production of mirrors with a high reflection coefficient from available materials such as aluminum and its alloys.

В литературе приводитс  р д указаний на услови  стабилизации отражательной способности поверхности алюмини  путем оксидировани . В частности РцИеп рекомендует дл  получени  прозрачного и стойкого оксида обрабатывать анодно лолироваиную зер«альН5 ю поверхность алюмийи  вначале раствором, содержащим 15% соды и 5% тринатрийфосфата при 80°, а затем, дл  упрочнени  оксида, - 20%-м раствором бисульфата натри .The literature provides a number of indications on the conditions for stabilizing the reflectivity of an aluminum surface by oxidation. Specifically, to obtain a transparent and resistant oxide, the Anodol grain an AlH5 surface of aluminum is first treated with a solution containing 15% soda and 5% trisodium phosphate at 80 ° C, and then, to strengthen the oxide, with 20% sodium bisulfate.

Согласно изобретению, предлагаетс  следующий метод получени  npo3pai4Horo оксида, не снижающего коэфициента отражени .According to the invention, the following method is proposed for producing npo3pai4Horo oxide, which does not reduce the reflection coefficient.

Полированна  и обезжиренна  каким-либо ПОДХОДЯЩИМ: органическим растворителем деталь оксидируетс  анодно в электролите, содержащем соль одно- или двyзa eщенной фосфорной кислоты или смесь этих солей.Polished and degreased with ANY SUITABLE: with an organic solvent, the component is oxidized anodically in an electrolyte containing a salt of one or two phosphate acids or a mixture of these salts.

Например, можно примен ть электролиты следующих составов:For example, electrolytes of the following compositions can be used:

1.NaH.,PO,H.,O 50 г/л или1.NaH., PO, H., O 50 g / l or

2.Na,HPO,12H,O 200 г/л.2.Na, HPO, 12H, O 200 g / l.

Режим работы ванн обоих составов :The operation mode of the baths of both compositions:

Температура .... 18-35° Анодна  плотн. тока 0,3-1,0 А/дмНапр жение . . . 3-10 VTemperature .... 18-35 ° Anodna tight. current 0.3-1.0 A / dmP. . . 3-10 V

Продолжительность оксидировани  10 .минут.Duration of oxidation is 10 minutes.

Предмет и э о б р е т е н и  .Subject and ebretien and.

Способ анодного оксидировани  алюмини  и его сплавов с применением электролитов, содержащих фосфат натри , отличающийс  тем, что, в цел х получени  на полирован ом алюминии и его сплавах стойкой и прозрачйоЙ оковдной плевки, лнойную обработку произзод т в электролитах, .содержащихThe method of anodic oxidation of aluminum and its alloys with the use of electrolytes containing sodium phosphate, characterized in that, in order to produce resistant and transparent spitting, on polished aluminum and its alloys, pulping is carried out in electrolytes containing

одно- и двузамещенные соли фосфорной кислоты, при температуре 18-35°, анодной плотности 0,3- 1,0 А/дм- и напр жении 3-10 вольт.mono- and disubstituted salts of phosphoric acid, at a temperature of 18-35 °, anode density of 0.3-1.0 A / dm, and a voltage of 3-10 volts.

SU822D 1939-07-23 1939-07-23 Method of anodic oxidation of aluminum and its alloys SU60038A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU822D SU60038A1 (en) 1939-07-23 1939-07-23 Method of anodic oxidation of aluminum and its alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU822D SU60038A1 (en) 1939-07-23 1939-07-23 Method of anodic oxidation of aluminum and its alloys

Publications (1)

Publication Number Publication Date
SU60038A1 true SU60038A1 (en) 1940-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU822D SU60038A1 (en) 1939-07-23 1939-07-23 Method of anodic oxidation of aluminum and its alloys

Country Status (1)

Country Link
SU (1) SU60038A1 (en)

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