SU148320A1 - Method to remove scale from nickel and its alloys - Google Patents
Method to remove scale from nickel and its alloysInfo
- Publication number
- SU148320A1 SU148320A1 SU744638A SU744638A SU148320A1 SU 148320 A1 SU148320 A1 SU 148320A1 SU 744638 A SU744638 A SU 744638A SU 744638 A SU744638 A SU 744638A SU 148320 A1 SU148320 A1 SU 148320A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- nickel
- alloys
- remove scale
- etching
- products
- Prior art date
Links
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
Известны способы сн ти окалины с изделий из никел и его сплавов Путем разрыхлени пленки окалины в нитратно-щелочном растворе с последующим травлением рыхлых окислов в смеси серной и сол ной кислот. Недостатком такого способа травлени вл етс то, что нар ду с удалением окислов происходит стравливание основного металла .Methods are known for removing scale from products made of nickel and its alloys. By loosening a film of scale in a nitrate-alkaline solution, followed by etching loose oxides in a mixture of sulfuric and hydrochloric acids. The disadvantage of this etching method is that, along with the removal of oxides, the base metal is etched.
Дл предупреждени вытравливани чистого металла и упрощени технологии травлени предлагаетс применить в качестве травител щелочно-боратный расплав с низкой температурой плавлени .In order to prevent the etching of the pure metal and simplify the etching technology, it is proposed to use an alkali borate melt with a low melting point as a herrant.
Сущность способа заключаетс в следующем. Издели , подлежащие травлению, погружают в щелочно-боратный раствор следующего состава: NaOH 40-50%, КОН 60-50%, Na2B4O7 (обезвоженна ) 20- 30%- По истечении определенного времени издели вынимаютс из расплава и погружаютс в холодную воду дл охлаждени и растворени с тюверхности металла солей- После промывки издели сушатс . При этом травлени в кислотах не требуетс .The essence of the method is as follows. Products to be etched are immersed in an alkaline-borate solution of the following composition: NaOH 40-50%, KOH 60-50%, Na2B4O7 (dehydrated) 20-30% - After a certain time, the products are removed from the melt and immersed in cold water for cooling and dissolving metal salts from the superstructure. After washing, the product is dried. No acid pickling is required.
Рабоча температура расплава и врем выдержки в нем изделий завис т от марки никелевого сплава и приведены в таблице.The working temperature of the melt and the holding time of the products in it depend on the brand of nickel alloy and are listed in the table.
№ 148320- 2 -.No. 148320-2 -.
Обработанный металл имеет серую матовую поверхность.The treated metal has a gray matte surface.
Таким образом, предложенный способ обработки дл сн ти окалины с изделий из никел и его сплавов иозвол ет значительно упростить процесс травлени , при этом описанна щелочно-боратна ванна не повышает вредности производства, а вход щие в нее вещества не вл ютс остро дефицитными. Важнейшее преимущество способа заключаетс в его экономичности за счет уменьшени потерь никел , так как данный состав, раствор пленку окалины практически не раствор ет чистый металл.Thus, the proposed treatment method for descaling from products made of nickel and its alloys makes it possible to considerably simplify the etching process, and the described alkali borate bath does not increase the production hazard, and the substances included in it are not critically deficient. The most important advantage of the method lies in its cost-effectiveness due to the reduction of nickel losses, since this composition, the scale film solution, practically does not dissolve the pure metal.
Предмет изобретени Subject invention
Способ сн ти окалины с изделий из никел иегосилавов, отличающийс тем, что, с целью предупреждени вытравливани чистого металла и упрощени технологии травлени , в качестве травител примен ют щелочно-боратный расплав с низкой температурой плавлени .The method of descaling the products of nickel from the nickel metal, characterized in that, in order to prevent the etching of the pure metal and to simplify the etching technology, an alkaline borate melt with a low melting point is used as the etchant.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU744638A SU148320A1 (en) | 1961-09-12 | 1961-09-12 | Method to remove scale from nickel and its alloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU744638A SU148320A1 (en) | 1961-09-12 | 1961-09-12 | Method to remove scale from nickel and its alloys |
Publications (1)
Publication Number | Publication Date |
---|---|
SU148320A1 true SU148320A1 (en) | 1961-11-30 |
Family
ID=48303602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU744638A SU148320A1 (en) | 1961-09-12 | 1961-09-12 | Method to remove scale from nickel and its alloys |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU148320A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2545282C2 (en) * | 2013-05-22 | 2015-03-27 | Василий Семенович Калмыков | Removal of scale from turbomachine parts |
-
1961
- 1961-09-12 SU SU744638A patent/SU148320A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2545282C2 (en) * | 2013-05-22 | 2015-03-27 | Василий Семенович Калмыков | Removal of scale from turbomachine parts |
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