SU149727A1 - Method of nitriding metals in salt baths - Google Patents
Method of nitriding metals in salt bathsInfo
- Publication number
- SU149727A1 SU149727A1 SU667902A SU667902A SU149727A1 SU 149727 A1 SU149727 A1 SU 149727A1 SU 667902 A SU667902 A SU 667902A SU 667902 A SU667902 A SU 667902A SU 149727 A1 SU149727 A1 SU 149727A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- salt baths
- salt
- metals
- bath
- nitration
- Prior art date
Links
- 150000003839 salts Chemical class 0.000 title description 9
- 238000000034 method Methods 0.000 title description 8
- 229910052751 metal Inorganic materials 0.000 title description 7
- 239000002184 metal Substances 0.000 title description 7
- 150000002739 metals Chemical class 0.000 title description 3
- 238000005121 nitriding Methods 0.000 title description 2
- 239000007789 gas Substances 0.000 description 9
- 238000006396 nitration reaction Methods 0.000 description 7
- 230000001590 oxidative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 150000001913 cyanates Chemical class 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000011833 salt mixture Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
Известен сиособ нитрировани металлов в сол ных ваннах, содер-жащих щелочные цианиды и цианаты. При этом перемешивание жидкости производитс путем подачи газов, а также в тех случа когда барботируемый газ химически взаимодействует с сол ной смесью.A known method of nitriding metals in salt baths containing alkaline cyanides and cyanates. In this case, the mixing of the liquid is carried out by supplying gases, as well as in those cases when the sparged gas chemically interacts with the salt mixture.
Предлагаемый способ отличаетс от известных введением воздуха или других окисл ющих газов прк помощи труб С -мелкими отверсти ми или пористых элементов, расположенных на дне ванны. При этом содержание кали в расплаве солей, в пересчете на чистый металл, поддерживают в пределах от 10 до 30%.The proposed method differs from the known ones by introducing air or other oxidizing gases through the aid of C-shallow holes or porous elements located at the bottom of the bath. The content of potassium in the molten salt, in terms of pure metal, is maintained in the range from 10 to 30%.
Применение способа повыщает нитрационное воздействие сол ных ванн и увеличивает эффективность нитрировани металлов.The application of the method increases the nitration effect of salt baths and increases the efficiency of metal nitration.
По предлагаемому способу повышение нитрационного воздействи сол ных ванн достигаетс тем, что через ванну пропускают в мелкораспыленно .м виде воздух или другие окисл ющие газы.According to the proposed method, an increase in the nitration effect of salt baths is achieved by passing air or other oxidizing gases through a bath into a fine spray.
При этом устран етс зависимость нитрационного воздействи таких ванн от их глубины. ,This eliminates the dependence of the nitration effect of such baths on their depth. ,
На фиг. 1 изображено устройство с .подающим газ элементом, выполненным в форме трубы, дл осуществлени предлагаемого способа; на фиг. 2 - то же, с подачей газа через пористый элемент.FIG. Figure 1 shows a device with a gas supplying element made in the form of a pipe for carrying out the proposed method; in fig. 2 - the same, with the gas flow through the porous element.
Бак / ванны установлен в корпусе 2. Между ними расположены теплоизол ционный материал и элемент нагрева, подогревающий сол ную ванну. В бак / сверху введена труба 3 (фиг. 2), котора служит дл (подачи воздуха или окисл ющего газа. К трубе 3 присоединена горизонтальна труба 4, расположенна на дне ло периметру бака ванны, и имеюща отверсти , например, диаметром 0,5 мм.The tank / bath is installed in the housing 2. Between them there is a heat insulating material and a heating element that heats the salt bath. A tube 3 is inserted into the tank / top (FIG. 2), which serves for (supplying air or an oxidizing gas. A horizontal tube 4 is attached to the tube 3 located at the bottom of the tub tank and having a hole, for example, with a diameter of 0.5 mm
Плита 5, выполненна из пористого материала, устанавливаетс вблизи днища бака. Под нее через трубу 6 нагнетаетс воздух или другой окисл ющий газ.Plate 5, made of porous material, is installed near the bottom of the tank. Air or another oxidizing gas is injected through it through pipe 6.
Предлагаемый способ проверен практически и показал положительные результаты.The proposed method is tested practically and showed positive results.
Предмет изобретени Subject invention
Способ нитрировани металлов -в сол ных ваннах, содержащих щелочные цианиды и цианаты, отличающийс тем, что, с целью повышени нитрационного воздействи сол ных ванн и ловышени эффективности нитрировани металлов, в сол ную смесь (ванну) ввод т воздзх или другие окисл ющие газы при помощи труб с мелкими отверсти ми или -пористых элементов, расположенных на дне ванны, причем содержание кали в расплаве солей, в пересчете на чистый металл , поддерживаютВ пределах от 10 до 30%.The method of nitration of metals in salt baths containing alkaline cyanides and cyanates, characterized in that, in order to increase the nitration effect of salt baths and increase the efficiency of metal nitration, air or other oxidizing gases are introduced into the salt mixture (bath) the aid of pipes with small holes or porous elements located at the bottom of the bath, and the potassium content in the molten salt, in terms of pure metal, is maintained within the range of 10 to 30%.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU667902A SU149727A1 (en) | 1960-05-27 | 1960-05-27 | Method of nitriding metals in salt baths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU667902A SU149727A1 (en) | 1960-05-27 | 1960-05-27 | Method of nitriding metals in salt baths |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU149727A1 true SU149727A1 (en) | 1961-11-30 |
Family
ID=48304807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU667902A SU149727A1 (en) | 1960-05-27 | 1960-05-27 | Method of nitriding metals in salt baths |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU149727A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2152453C1 (en) * | 1999-04-20 | 2000-07-10 | Открытое акционерное общество "УралЛУКтрубмаш" | Process of chemical and thermal treatment of internal surfaces of pipes in melt of cyanates and gear for its implementation |
-
1960
- 1960-05-27 SU SU667902A patent/SU149727A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2152453C1 (en) * | 1999-04-20 | 2000-07-10 | Открытое акционерное общество "УралЛУКтрубмаш" | Process of chemical and thermal treatment of internal surfaces of pipes in melt of cyanates and gear for its implementation |
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